<SEC-DOCUMENT>0001213900-25-079922.txt : 20251216
<SEC-HEADER>0001213900-25-079922.hdr.sgml : 20251216
<ACCEPTANCE-DATETIME>20250822161602
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0001213900-25-079922
CONFORMED SUBMISSION TYPE:	CORRESP
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250822

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			M3-Brigade Acquisition VI Corp.
		CENTRAL INDEX KEY:			0002073928
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		EIN:				000000000
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		1700 BROADWAY, 19TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
		BUSINESS PHONE:		212-202-2200

	MAIL ADDRESS:	
		STREET 1:		1700 BROADWAY, 19TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019
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<TYPE>CORRESP
<SEQUENCE>1
<FILENAME>filename1.htm
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">August 22, 2025</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"><B>VIA EDGAR</B></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">United States Securities and Exchange Commission</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Office of Real Estate &amp; Construction</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">100 F Street, N.E.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Washington, D.C.&nbsp;&nbsp;20549</P>

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

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0in"></TD><TD STYLE="width: 0.5in; text-align: left">Re:</TD><TD STYLE="text-align: justify">M3-Brigade Acquisition VI Corp.</TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Registration Statement on Form S-1</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Filed August 4, 2025, as amended</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">File No. 333-289225</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; text-align: justify">Ladies and Gentlemen,</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; text-indent: 0.5in">Pursuant to Rule 461 under
the Securities Act of 1933, as amended (the &ldquo;Act&rdquo;), the undersigned hereby joins in the request of M3-Brigade Acquisition
VI Corp. that the effective date of the above-referenced Registration Statement be accelerated so as to permit it to become effective
at 4:30 p.m. Eastern Time on August 26, 2025, or as soon thereafter as practicable.</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; text-indent: 0.5in">Pursuant to Rule 460 of the
General Rules and Regulations under the Act, the undersigned wishes to advise you that there will be distributed to each underwriter or
dealer, who is reasonably anticipated to participate in the distribution of the security, as many copies of the proposed form of preliminary
prospectus as appears to be reasonable to secure adequate distribution of the preliminary prospectus.</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; text-indent: 0.5in">The undersigned advises that
it has complied and will continue to comply with the requirements of Rule 15c2-8 under the Securities Exchange Act of 1934, as amended.</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">* * *</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">[<I>Signature Page Follows</I>]</P>

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


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

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-family: Times New Roman, Times, Serif">Very truly yours,</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>CANTOR FITZGERALD &amp; CO.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="3">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="padding-bottom: 1.5pt">&nbsp;</TD>
    <TD STYLE="padding-bottom: 1.5pt">By<FONT STYLE="font-variant: small-caps">:</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-variant: small-caps">/s/ David batalion</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="width: 4%">&nbsp;</TD>
    <TD STYLE="width: 5%">Name:&nbsp;</TD>
    <TD STYLE="width: 31%">David Batalion</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Title:</TD>
    <TD>Managing Director, Investment Banking</TD></TR>
  </TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">[<I>Signature Page to UW Acceleration Request</I>]</P>

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

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

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

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

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

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