<SEC-DOCUMENT>0001193125-20-303705-index.html : 20201125
<SEC-HEADER>0001193125-20-303705.hdr.sgml : 20201125
<ACCEPTANCE-DATETIME>20201125164957
ACCESSION NUMBER:		0001193125-20-303705
CONFORMED SUBMISSION TYPE:	424B4
PUBLIC DOCUMENT COUNT:		18
FILED AS OF DATE:		20201125
DATE AS OF CHANGE:		20201125

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:		424B4
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-250865
		FILM NUMBER:		201351354

	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>424B4
<SEQUENCE>1
<FILENAME>d64151d424b4.htm
<DESCRIPTION>424B4
<TEXT>
Document 1 - file: d64151d424b4.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>g64151egate2.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 2 - file: g64151egate2.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>g64151egate3.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: g64151egate3.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>g64151egate4.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: g64151egate4.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>g64151egate5.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: g64151egate5.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>g64151g05r55.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: g64151g05r55.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>g64151g12p28.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 7 - file: g64151g12p28.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>g64151g14b57.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 8 - file: g64151g14b57.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>g64151g18s56.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 9 - file: g64151g18s56.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>g64151g23e19.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 10 - file: g64151g23e19.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>g64151g26r87.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 11 - file: g64151g26r87.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>g64151g29q35.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 12 - file: g64151g29q35.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>g64151g29q88.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 13 - file: g64151g29q88.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>g64151g31s02.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 14 - file: g64151g31s02.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>g64151g52n79.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 15 - file: g64151g52n79.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>16 <FILENAME>g64151g55q57.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 16 - file: g64151g55q57.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>17 <FILENAME>g64151g89s43.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 17 - file: g64151g89s43.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>18 <FILENAME>g64151g99g91.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 18 - file: g64151g99g91.jpg
</DOCUMENT> </SEC-DOCUMENT>