X0206 3 2020-07-22 0 0001643615 Montrose Environmental Group, Inc. MEG 0001817846 Dicks Allan 1 PARK PLAZA, SUITE 1000 IRVINE CA 92614 0 1 0 0 Chief Financial Officer Common Stock 8750 I See Footnote Stock Option (Right to Buy) 8.58 2026-08-16 Common Stock 125000 D Stock Option (Right to Buy) 9.76 2026-12-13 Common Stock 62500 D Stock Option (Right to Buy) 24.00 2029-01-10 Common Stock 20460 D Stock Option (Right to Buy) 31.60 2030-01-01 Common Stock 18892 D The shares of common stock, par value $0.000004 (the "Common Stock"), are held by The Allan and Kristine Dicks Trust. This option represents the right to purchase a total of 125,000 shares of the Common Stock, 62,500 of which have vested, with the remaining shares vesting on August 16, 2020, subject to the Reporting Person's continued service to Issuer. This option represents the right to purchase a total of 62,500 shares of the Common Stock, 31,250 of which have vested, with the remaining shares vesting on December 13, 2020, subject to the Reporting Person's continued service to the Issuer. This option represents the right to purchase a total of 20,460 shares of the Common Stock, 6,820 of which have vested with the remaining shares vesting in two equal annual installments on January 10, 2021 and January 10, 2022, subject to the Reporting Person's continued service to the Issuer. This option represents the right to purchase a total of 18,892 shares of the Common Stock which will vest in three equal annual installments on January 1, 2021, January 1, 2022, and January 1, 2023, subject to the Reporting Person's continued service to the Issuer. Exhibit 24.1 - Power of Attorney /s/ Nasym Afsari, Attorney in fact 2020-07-22