<SEC-DOCUMENT>0001193125-21-252801-index.html : 20210820
<SEC-HEADER>0001193125-21-252801.hdr.sgml : 20210820
<ACCEPTANCE-DATETIME>20210820163320
ACCESSION NUMBER:		0001193125-21-252801
CONFORMED SUBMISSION TYPE:	424B3
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20210820
DATE AS OF CHANGE:		20210820

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Montrose Environmental Group, Inc.
		CENTRAL INDEX KEY:			0001643615
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MANAGEMENT CONSULTING SERVICES [8742]
		IRS NUMBER:				464195044
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-258732
		FILM NUMBER:		211194276

	BUSINESS ADDRESS:	
		STREET 1:		1 PARK PLAZA, SUITE 1000
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92614
		BUSINESS PHONE:		(949) 988-3500

	MAIL ADDRESS:	
		STREET 1:		1 PARK PLAZA, SUITE 1000
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92614
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<FILENAME>d200535d424b3.htm
<DESCRIPTION>424B3
<TEXT>
Document 1 - file: d200535d424b3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g200535g99g91.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g200535g99g91.jpg

</DOCUMENT>
</SEC-DOCUMENT>