 IRVINE, Calif.--BUSINESS WIRE--Montrose Environmental Group, Inc. the Company, Montrose or MEG NYSE: MEG today announced results for the fourth quarter and full year ended December 31, 2020 and provided its full year 2021 outlook. Full Year and Fourth Quarter 2020 Highlights 2020 revenue of 328.2 million increased 40.4 compared to the prior year. Fourth quarter revenue of 108.7 million increased 60.2 compared to the prior year quarter. 2020 Net loss of 57.9 million compared to 