<SEC-DOCUMENT>0001144204-19-014725.txt : 20190319
<SEC-HEADER>0001144204-19-014725.hdr.sgml : 20190319
<ACCEPTANCE-DATETIME>20190318202151
ACCESSION NUMBER:		0001144204-19-014725
CONFORMED SUBMISSION TYPE:	10-K/A
PUBLIC DOCUMENT COUNT:		6
CONFORMED PERIOD OF REPORT:	20181231
FILED AS OF DATE:		20190319
DATE AS OF CHANGE:		20190318

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MDC PARTNERS INC
		CENTRAL INDEX KEY:			0000876883
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-ADVERTISING AGENCIES [7311]
		IRS NUMBER:				980364441
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13718
		FILM NUMBER:		19689930

	BUSINESS ADDRESS:	
		STREET 1:		745 FIFTH AVENUE, 19TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10151
		BUSINESS PHONE:		646 429 1800

	MAIL ADDRESS:	
		STREET 1:		745 FIFTH AVENUE, 19TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10151

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MDC CORP INC
		DATE OF NAME CHANGE:	20001204

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MDC COMMUNICATIONS CORP
		DATE OF NAME CHANGE:	19961028

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MDC CORPORATION
		DATE OF NAME CHANGE:	19950419
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-K/A
<SEQUENCE>1
<FILENAME>tv516552_10ka.htm
<DESCRIPTION>10-K/A
<TEXT>
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<P STYLE="margin: 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>UNITED STATES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Washington, D.C. 20549</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM 10-K/A</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Amendment No. 1</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Wingdings"></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Wingdings">&yacute;
</FONT><B>ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>OF THE SECURITIES EXCHANGE ACT OF 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>For the Fiscal Year Ended December 31,
2018</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Wingdings">o </FONT><B>TRANSITION
REPORT PURSUANT TO SECTION 13 OR 15(d)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>OF THE SECURITIES EXCHANGE ACT OF 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>For the transition period from _____
to ______</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Commission File Number 001-13718</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 14pt"><B>MDC PARTNERS
INC.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt">(Exact Name of Registrant
as Specified in Its Charter)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 37%; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Canada</B></FONT></TD>
    <TD STYLE="width: 27%; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 36%; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>98-0364441</B></FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-right: 3pt; padding-left: 3pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(State or Other Jurisdiction of</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Incorporation or Organization)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P></TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="padding-right: 3pt; padding-left: 3pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(I.R.S. Employer</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Identification Number)</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>745 Fifth Avenue, 19th Floor, New York,
New York, 10151</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(646) 429-1800</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt">(Address, Including Zip
Code, and Telephone Number, Including Area Code, of Registrant&rsquo;s Principal Executive Offices)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt">Securities registered
pursuant to Section 12(b) of the Act:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 50%; border-bottom: Black 1pt solid; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Title of Each Class</B></FONT></TD>
    <TD STYLE="width: 1%; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 49%; border-bottom: Black 1pt solid; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt"><B>Name of Each Exchange on Which Registered</B></FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">Class A Subordinate Voting Shares, no par value</FONT></TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt; text-align: center"><FONT STYLE="font-size: 10pt">NASDAQ</FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt">Securities registered
pursuant to Section 12(g) of the Act: <B>None</B>.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 3pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark if the
registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes <FONT STYLE="font-family: Wingdings">o </FONT>No <FONT STYLE="font-family: Wingdings">&yacute;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark if the
registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes <FONT STYLE="font-family: Wingdings">o</FONT>
No <FONT STYLE="font-family: Wingdings">&yacute;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark whether the
Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934
during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2)
has been subject to such filing requirements for the past 90 days. Yes <FONT STYLE="font-family: Wingdings">&yacute;</FONT>
No <FONT STYLE="font-family: Wingdings">o</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark whether the
registrant has submitted electronically and every Interactive Data File required to be submitted pursuant to Rule 405 of
Regulation S-T (&sect;232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant
was required to submit such files). Yes <FONT STYLE="font-family: Wingdings">&yacute;</FONT> No <FONT STYLE="font-family: Wingdings">o</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark if disclosure of
delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant&rsquo;s
knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment
to this Form 10-K. <FONT STYLE="font-family: Wingdings">&yacute;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark whether the registrant
is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth
company. See the definitions of &ldquo;large accelerated filer,&rdquo; &ldquo;accelerated filer,&rdquo; &ldquo;smaller reporting
company,&rdquo;and &ldquo;emerging growth company&rdquo; in Rule 12b-2 of the Exchange Act. (Check one):</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Large accelerated filer <FONT STYLE="font-family: Wingdings">o
</FONT>Accelerated filer <FONT STYLE="font-family: Wingdings">&yacute; </FONT>Non-accelerated filer <FONT STYLE="font-family: Wingdings">o</FONT>
Smaller reporting company <FONT STYLE="font-family: Wingdings">o </FONT>Emerging growth company <FONT STYLE="font-family: Wingdings">o</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">If an emerging growth company, indicate by check mark if the
registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards
provided pursuant to Section 13(a) of the Exchange Act. <FONT STYLE="font-family: Wingdings">o</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Indicate by check mark whether the
registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes <FONT STYLE="font-family: Wingdings">o</FONT> No <FONT STYLE="font-family: Wingdings">&yacute;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">The aggregate market value of the shares
of all classes of voting and non-voting common stock of the registrant held by non-affiliates as of June 29, 2018, the last business
day of the Registrant&rsquo;s most recently completed second fiscal quarter, was approximately $223.8 million, computed upon the
basis of the closing sales price $4.60 of the Class A subordinate voting shares on that date.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">As of February 28, 2019, there were 57,577,825
outstanding shares of Class A subordinate voting shares without par value, and 3,755 outstanding shares of Class B multiple voting
shares without par value, of the registrant.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 9pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">DOCUMENTS INCORPORATED BY REFERENCE</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Portions of the Registrant&rsquo;s Proxy
Statement relating to the 2019 Annual General Meeting of Stockholders are incorporated by reference in Part III of this report.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>EXPLANATORY NOTE</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;<B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">This Amendment No. 1 (this &ldquo;Amendment&rdquo;)
to MDC Partners Inc.&rsquo;s Annual Report on Form 10-K for the fiscal year ended December 31, 2018, filed with the U.S. Securities
and Exchange Commission on March 18, 2019 (the &ldquo;Original Form 10-K&rdquo;), is being filed with the limited purpose of amending
the Consent of Independent Registered Public Accounting Firm in Exhibit 23 of the Original Form 10-K to include the correct Registration
Statements and report date. Due to an administrative oversight, an incorrect version of the Consent was inadvertently included
in the Original Report.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">Except for the correction of the Consent
referenced above, there have been no changes to any of the financial or other information contained in the Original Form 10-K.
Accordingly, this Amendment is as of the filing date of the Original Form 10-K and should be read in conjunction with the Original
Form 10-K. This Amendment does not reflect any subsequent information or events and no other information included in the Original
Form 10-K has been modified or updated in any way, except as described above.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>Item 15. Exhibits, Financial Statement
Schedules.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"><B>&nbsp;&nbsp;</B></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 13%; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify"><B>Exhibit No.</B></TD>
    <TD STYLE="width: 2%; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="width: 85%; border-bottom: Black 1pt solid; padding-right: 5.4pt; padding-left: 5.4pt; text-align: justify"><B>Description</B></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify"><A HREF="tv516552_ex23.htm" STYLE="-sec-extract: exhibit">23</A></TD>
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify"><A HREF="tv516552_ex23.htm" STYLE="-sec-extract: exhibit">Consent of Independent Registered Public Accounting Firm BDO USA LLP*;</A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify"><A HREF="tv516552_ex31-1.htm" STYLE="-sec-extract: exhibit">31.1</A></TD>
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify"><A HREF="tv516552_ex31-1.htm" STYLE="-sec-extract: exhibit">Certification
    by Chief Financial Officer and Co-Chief Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities
    Exchange Act of 1934 and Section 302 of the Sarbanes-Oxley Act of 2002*;</A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify"><A HREF="tv516552_ex31-2.htm" STYLE="-sec-extract: exhibit">31.2</A></TD>
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify"><A HREF="tv516552_ex31-2.htm" STYLE="-sec-extract: exhibit">Certification by Co-Chief Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934 and Section 302 of the Sarbanes-Oxley Act of 2002*;</A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify"><A HREF="tv516552_ex31-3.htm" STYLE="-sec-extract: exhibit">31.3</A></TD>
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify"><A HREF="tv516552_ex31-3.htm" STYLE="-sec-extract: exhibit">Certification by Co-Chief Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934 and Section 302 of the Sarbanes-Oxley Act of 2002*;</A></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify"><A HREF="tv516552_ex31-4.htm" STYLE="-sec-extract: exhibit">31.4</A></TD>
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify">&nbsp;</TD>
    <TD STYLE="padding-top: 6pt; padding-bottom: 6pt; text-align: justify"><A HREF="tv516552_ex31-4.htm" STYLE="-sec-extract: exhibit">Certification by Co-Chief Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934 and Section 302 of the Sarbanes-Oxley Act of 2002*;</A></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; color: #333333">* Filed electronically herewith.</P>



<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SIGNATURES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">Pursuant to the requirements
of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf
by the undersigned, thereunto duly authorized.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.25in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 256pt"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 256pt">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD>By:</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD><B>MDC PARTNERS INC.</B></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 6%; padding-top: 2pt; padding-bottom: 2pt">Date:</TD>
    <TD STYLE="width: 43%; padding-top: 2pt; padding-bottom: 2pt">March 18, 2019</TD>
    <TD STYLE="width: 5%; padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="width: 46%; border-bottom: Black 1pt solid">/s/ David Doft</TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Name: David Doft</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Title: Chief Financial Officer</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;&nbsp;</P>

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<DOCUMENT>
<TYPE>EX-23
<SEQUENCE>2
<FILENAME>tv516552_ex23.htm
<DESCRIPTION>EXHIBIT 23
<TEXT>
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<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0"><FONT STYLE="color: Black">&nbsp;</FONT></P>

<P STYLE="margin: 0; text-align: right"><FONT STYLE="color: Black"><B>Exhibit 23</B></FONT></P>

<P STYLE="margin: 0; text-align: right"><FONT STYLE="color: Black">&nbsp;</FONT></P>

<P STYLE="margin: 0; text-align: right"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; color: fuchsia"><FONT STYLE="color: Black"><U>Consent
of Independent Registered Public Accounting Firm</U></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: fuchsia"><FONT STYLE="color: Black">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: fuchsia"><FONT STYLE="color: Black">MDC
Partners Inc.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: fuchsia"><FONT STYLE="color: Black">New
York, New York</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: fuchsia">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: fuchsia"><FONT STYLE="color: Black">We
hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-226895 and 333-212261) and
Form S-3 (Nos. 333-222101 and 333-222095) of MDC Partners, Inc., of our reports dated March 18, 2019, relating to the consolidated
financial statements and financial statements schedules, and the effectiveness of MDC Partners, Inc.&rsquo;s internal control
over financial reporting, which appear in this Form 10-K.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: fuchsia"><FONT STYLE="color: Black"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: fuchsia">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: fuchsia"><FONT STYLE="color: Black">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: fuchsia"><FONT STYLE="color: Black">/s/
BDO USA, LLP</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: fuchsia"><FONT STYLE="color: Black">New
York, New York</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: fuchsia">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; color: fuchsia"><FONT STYLE="color: Black">March
18, 2019</FONT></P>



<P STYLE="margin: 0; text-align: right">&nbsp;</P>

<P STYLE="margin: 0; text-align: right"></P>

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<P STYLE="margin: 0; text-align: right"></P>

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<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>3
<FILENAME>tv516552_ex31-1.htm
<DESCRIPTION>EXHIBIT 31.1
<TEXT>
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</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; text-indent: 3pt"><B>Exhibit 31.1</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; text-indent: 3pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Certification Pursuant to Rules 13a-14(a)
and 15d-14(a) as</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Adopted Pursuant to Section 302 of the
Sarbanes-Oxley Act of 2002</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 3pt">I, David Doft, certify that:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 3pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">1.</TD><TD>I have reviewed this amendment to the annual report on Form 10-K for the year ended December&nbsp;31, 2018 of MDC Partners
Inc.; and</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">2.</TD><TD>Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact
necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with
respect to the period covered by this report.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">Date:</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt">March 18, 2019</TD>
    <TD COLSPAN="2" STYLE="padding-top: 2pt; padding-bottom: 2pt">/s/ David Doft</TD>
    </TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 5%; padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="width: 45%; padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="width: 5%; border-top: Black 1pt solid; padding-top: 2pt; padding-bottom: 2pt">By:</TD>
    <TD STYLE="width: 45%; border-top: Black 1pt solid; padding-top: 2pt; padding-bottom: 2pt">David Doft</TD>
    </TR>
<TR>
    <TD STYLE="vertical-align: bottom; padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-top: 2pt; padding-bottom: 2pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top">Title:</TD>
    <TD STYLE="vertical-align: bottom">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Chief Financial Officer</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">and member of the CEO Executive Committee</P></TD>
    </TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;&nbsp;</P>

<P STYLE="margin: 0"></P>

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<P STYLE="margin: 0"></P>

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<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>4
<FILENAME>tv516552_ex31-2.htm
<DESCRIPTION>EXHIBIT 31.2
<TEXT>
<HTML>
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</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0; text-align: right"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; text-indent: 3pt"><B>Exhibit 31.2</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; text-indent: 3pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Certification Pursuant to Rules 13a-14(a)
and 15d-14(a) as</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Adopted Pursuant to Section 302 of the
Sarbanes-Oxley Act of 2002</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 3pt">I, Mitchell Gendel, certify that:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 3pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">1.</TD><TD>I have reviewed this amendment to the annual report on Form 10-K for the year ended December&nbsp;31, 2018 of MDC Partners
Inc.; and</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">2.</TD><TD>Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact
necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with
respect to the period covered by this report.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">Date:</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">March 18, 2019</TD>
    <TD COLSPAN="2" STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">/s/ Mitchell Gendel</TD>
    </TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 5%; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 45%; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 5%; border-top: Black 1pt solid; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">By:</TD>
    <TD STYLE="width: 45%; border-top: Black 1pt solid; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">Mitchell Gendel</TD>
    </TR>
<TR>
    <TD STYLE="vertical-align: bottom; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; font-size: 10pt; text-align: left">Title:</TD>
    <TD STYLE="vertical-align: bottom">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Member of the CEO Executive Committee</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<DOCUMENT>
<TYPE>EX-31.3
<SEQUENCE>5
<FILENAME>tv516552_ex31-3.htm
<DESCRIPTION>EXHIBIT 31.3
<TEXT>
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<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0; text-align: right"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; text-indent: 3pt"><B>Exhibit 31.3</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; text-indent: 3pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Certification Pursuant to Rules 13a-14(a)
and 15d-14(a) as</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Adopted Pursuant to Section 302 of the
Sarbanes-Oxley Act of 2002</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 3pt">I, David Ross, certify that:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 3pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">1.</TD><TD>I have reviewed this amendment to the annual report on Form 10-K for the year ended December&nbsp;31, 2018 of MDC Partners
Inc.; and</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">2.</TD><TD>Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact
necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with
respect to the period covered by this report.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.75in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">Date:</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">March 18, 2019</TD>
    <TD COLSPAN="2" STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">/s/ David Ross</TD>
    </TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 5%; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 45%; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 5%; border-top: Black 1pt solid; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">By:</TD>
    <TD STYLE="width: 45%; border-top: Black 1pt solid; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">David Ross</TD>
    </TR>
<TR>
    <TD STYLE="vertical-align: bottom; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">Title:</TD>
    <TD STYLE="vertical-align: bottom">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Member of the CEO Executive Committee</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>



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<DOCUMENT>
<TYPE>EX-31.4
<SEQUENCE>6
<FILENAME>tv516552_ex31-4.htm
<DESCRIPTION>EXHIBIT 31.4
<TEXT>
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<P STYLE="margin: 0">&nbsp;</P>

<P STYLE="margin: 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; text-indent: 3pt"><B>Exhibit 31.4</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Certification Pursuant to Rules 13a-14(a)
and 15d-14(a) as</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Adopted Pursuant to Section 302 of the
Sarbanes-Oxley Act of 2002</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 3pt">I, Stephanie Nerlich, certify that:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 3pt">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">1.</TD><TD>I have reviewed this amendment to the annual report on Form 10-K for the year ended December&nbsp;31, 2018 of MDC Partners
Inc.; and</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">2.</TD><TD>Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact
necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with
respect to the period covered by this report.</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">Date:</TD>
    <TD STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">March 18, 2019</TD>
    <TD COLSPAN="2" STYLE="padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">/s/ Stephanie Nerlich</TD>
    </TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="width: 5%; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 45%; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="width: 5%; border-top: Black 1pt solid; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">By:</TD>
    <TD STYLE="width: 45%; border-top: Black 1pt solid; padding-top: 2pt; padding-bottom: 2pt; font-size: 10pt">Stephanie Nerlich</TD>
    </TR>
<TR>
    <TD STYLE="vertical-align: bottom; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">Title:</TD>
    <TD STYLE="vertical-align: bottom">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Member of the CEO Executive Committee</P></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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