<SEC-DOCUMENT>0001193125-21-284155-index.html : 20210927
<SEC-HEADER>0001193125-21-284155.hdr.sgml : 20210927
<ACCEPTANCE-DATETIME>20210927160752
ACCESSION NUMBER:		0001193125-21-284155
CONFORMED SUBMISSION TYPE:	424B5
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20210927
DATE AS OF CHANGE:		20210927

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:		424B5
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-258730
		FILM NUMBER:		211281820

	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>424B5
<SEQUENCE>1
<FILENAME>d113545d424b5.htm
<DESCRIPTION>424B5
<TEXT>
Document 1 - file: d113545d424b5.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>g113545egate2.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 2 - file: g113545egate2.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>g113545egate3.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: g113545egate3.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>g113545egate4.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: g113545egate4.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>g113545egate5.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: g113545egate5.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>g113545g18s56.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: g113545g18s56.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>g113545g99g91.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 7 - file: g113545g99g91.jpg
</DOCUMENT> </SEC-DOCUMENT>