List of 29 Acquired Environmental Companies in Massachusetts

Name	Sector	Revenue $mlns	M&A Activity			Last 5 Years
Name	Sector	Revenue $mlns	Total	Buy	Sell	Last 5 Years
ENPRO Services, Inc. Acquired NRC Group Holdings LLC 2016-04-11 Salisbury, Massachusetts, United States website	Environmental	-	3	3	-
Ionics, Inc. Acquired General Electric 2004-11-24 $1.1B Burlington, Massachusetts, United States website	Environmental	-	1	1	-
Acton Concord Septic, Inc. Acquired Wind River Environmental 2018-02-28 Concord, Massachusetts, United States	Environmental	-	-	-	-
Northeast Air Solutions Acquired American Air Filter Co, Inc. 2024-03-20 Wilmington, Massachusetts, United States website	Environmental	-	-	-	-
Alpha Analytical Acquired Pace 2023-03-07 Westborough, Massachusetts, United States website	Environmental	-	-	-	-
Complete Disposal Co., Inc. Acquired Casella 2018-01-04 $16.5M Westfield, Massachusetts, United States	Environmental	-	-	-	-
ENSR International Corp. Acquired Aecom 2005-09-06 Westford, Massachusetts, United States	Environmental	-	-	-	-
North Shore Compost Acquired Leahy Landscaping 2022-04-29 Lynn, Massachusetts, United States	Environmental	-	-	-	-
Northstar Pulp & Paper Acquired Casella 2022-03-02 Springfield, Massachusetts, United States website	Environmental	-	-	-	-
CK Environmental Acquired Alliance Technical Group 2022-07-06 Canton, Massachusetts, United States website	Environmental	-	-	-	-
Environmental Compliance Services, Inc. Acquired ATC Group Services LLC 2016-10-03 Agawam, Massachusetts, United States website	Environmental	-	-	-	-
Clean Harbors, Inc. - Transformer Services Acquired Versatile Processing Group 2017-07-05 Norwell, Massachusetts, United States	Environmental	-	-	-	-
Dec-Tam Acquired Alloy Group 2021-06-22 North Reading, Massachusetts, United States website	Environmental	-	-	-	-
CASTion Acquired ThermoEnergy 2007-07-02 Worcester, Massachusetts, United States	Environmental	-	-	-	-
Desalitech, Inc. Acquired DuPont 2019-12-11 Newton, Massachusetts, United States website	Environmental	-	-	-	-
NEDT Acquired Veolia Environnement 2025-06-26 Sutton, Massachusetts, United States website	Environmental	-	-	-	-

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