<SUBMISSION>
<ACCESSION-NUMBER>0000950123-11-091408
<TYPE>15-12G
<PUBLIC-DOCUMENT-COUNT>1
<FILING-DATE>20111024
<DATE-OF-FILING-DATE-CHANGE>20111024
<EFFECTIVENESS-DATE>20111024
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>APAC CUSTOMER SERVICES, INC
<CIK>0000949297
<ASSIGNED-SIC>7389
<IRS-NUMBER>362777140
<STATE-OF-INCORPORATION>IL
<FISCAL-YEAR-END>1230
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>15-12G
<ACT>34
<FILE-NUMBER>000-26786
<FILM-NUMBER>111154015
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>2201 WAUKEGAN ROAD, SUITE 300
<CITY>BANNOCKBURN
<STATE>IL
<ZIP>60015
<PHONE>847-236-5452
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>2201 WAUKEGAN ROAD, SUITE 300
<CITY>BANNOCKBURN
<STATE>IL
<ZIP>60015
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>APAC CUSTOMER SERVICE INC
<DATE-CHANGED>19990818
</FORMER-COMPANY>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>APAC TELESERVICES INC
<DATE-CHANGED>19950915
</FORMER-COMPANY>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>APAC CORP
<DATE-CHANGED>19950811
</FORMER-COMPANY>
</FILER>
<DOCUMENT>
<TYPE>15-12G
<SEQUENCE>1
<FILENAME>c23560e15v12g.htm
<DESCRIPTION>FORM 15-12G
<TEXT>
<HTML>
<HEAD>
<TITLE>e15v12g</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->
<DIV style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.50in">

<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<DIV align="center" style="font-size: 14pt; margin-top: 10pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 10pt"><B>FORM 15</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 10pt"><B>CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION<BR>
12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE<BR>
REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.</B>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 10pt">Commission File Number<U> 000-26786</U>
</DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 10pt"><B>APAC CUSTOMER SERVICES, INC.</B>
</DIV>

<DIV align="center" style="font-size: 10pt"><DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></DIV>


<DIV align="center" style="font-size: 10pt">(Exact name of registrant as specified in its charter)</DIV>



<DIV align="center" style="font-size: 10pt; margin-top: 10pt"><B>Bannockburn Lake Office, 2201 Waukegan Road, Suite&nbsp;300, Bannockburn, Illinois 60015</B>
</DIV>

<DIV align="center" style="font-size: 10pt"><DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></DIV>


<DIV align="center" style="font-size: 10pt">(Address, including zip code, and telephone number, including area code, of registrant&#146;s principal executive offices)</DIV>



<DIV align="center" style="font-size: 10pt; margin-top: 10pt">Common Shares, $0.01 par value per share
</DIV>

<DIV align="center" style="font-size: 10pt"><DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></DIV>


<DIV align="center" style="font-size: 10pt">(Title of each class of securities covered by this Form)</DIV>



<DIV align="center" style="font-size: 10pt; margin-top: 10pt">NONE
</DIV>

<DIV align="center" style="font-size: 10pt"><DIV style="border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV></DIV>


<DIV align="center" style="font-size: 10pt">(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)</DIV>



<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to
terminate or suspend the duty to file reports:
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head --><TR valign="bottom">
    <TD width="10%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="20%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="64%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Rule&nbsp;12g-4(a)(1)
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><FONT style="font-family: Wingdings">&#120;</FONT></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Rule&nbsp;12g-4(a)(2)
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><FONT style="font-family: Wingdings">&#168;</FONT></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Rule&nbsp;12h-3(b)(1)(i)
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><FONT style="font-family: Wingdings">&#120;</FONT></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Rule&nbsp;12h-3(b)(1)(ii)
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><FONT style="font-family: Wingdings">&#168;</FONT></TD>
</TR>
<TR valign="bottom" style="padding-top: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Rule&nbsp;15d-6
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><FONT style="font-family: Wingdings">&#168;</FONT></TD>
</TR>
<!-- End Table Body --></TABLE>
</DIV>



<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; margin-left: 4%">Approximate number of holders of record as of the certification or notice date: <U>One&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U>
</DIV>

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">On October&nbsp;14, 2011, pursuant to the Agreement and Plan of Merger, dated as of July&nbsp;6, 2011,
by and among APAC Customer Services, Inc., an Illinois corporation (the &#147;Company&#148;), Blackhawk
Acquisition Parent, LLC, a Delaware limited liability company (&#147;Parent&#148;), and Blackhawk Merger Sub,
Inc., an Illinois corporation and a wholly owned subsidiary of Parent (&#147;Merger Sub&#148;), Merger Sub
merged with and into the Company, with the Company as the surviving entity and a wholly owned
subsidiary of Parent. Parent is beneficially owned by affiliates of One Equity Partners.
</DIV>

<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>





<DIV align="left" style="margin-top: 10pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="7%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left">SEC2069(02-08)</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="text-align: justify"><B>Persons who respond to the collection of information contained in this
form are not required to respond unless the form displays a currently valid OMB control number.</B></DIV></TD>
</TR>
</TABLE>
</DIV>
<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.50in">

<DIV align="justify" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%">Pursuant to the requirements of the Securities Exchange Act of 1934 APAC Customer Services,
Inc. has caused this certification/notice to be signed on its behalf by the undersigned duly
authorized person.
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">Date:      October 24, 2011&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Robert B. Nachwalter
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top">Name:&nbsp;&nbsp;</TD>
    <TD align="left">Robert B. Nachwalter&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top">Title:&nbsp;&nbsp;</TD>
    <TD align="left">Senior Vice President, General
Counsel<BR> and Corporate Secretary&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>


<DIV align="justify" style="font-size: 10pt; margin-top: 10pt">Instruction: This form is required by Rules&nbsp;12g-4, 12h-3 and 15d-6 of the General Rules and
Regulations under the Securities Exchange Act of 1934. The registrant shall file with the
Commission three copies of Form&nbsp;15, one of which shall be manually signed. It may be signed by an
officer of the registrant, by counsel or by any other duly authorized person. The name and title of
the person signing the form shall be typed or printed under the signature.
</DIV>

<DIV align="left" style="margin-top: 10pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; background: transparent; color: #000000">
<TR>
    <TD width="7%"></TD>
    <TD width="1%"></TD>
    <TD></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left">SEC2069(02-08)</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="text-align: justify"><B>Persons who respond to the collection of information contained in this
form are not required to respond unless the form displays a currently valid OMB control number.</B></DIV></TD>
</TR>
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">&nbsp;

<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>




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</SUBMISSION>
