How many acquisitions has Clean Harbors made so far?

Clean Harbors has completed 13 acquisitions so far, with an average acquisition amount of $356M.

Which countries does Clean Harbors usually acquire in?

Clean Harbors has made acquisitions in 3 countries with the most activity in United States and Australia.

Which is Clean Harbors' latest acquisition?

Clean Harbors's most recent acquisition is EnviroServe, a Provider of railroad services & AAR repair services, acquired in August 2026.

List of 13 Acquisitions by Clean Harbors (Sep 2026)

Most viewed in 2019

Clean Harbors has made a total of 13 acquisitions. It operates across 4 sectors: Waste & Water Management, Solar Energy, Auto Components, and one additional sector. The company has conducted business in 3 countries: United States, Australia, and Canada. Peak activity occurred in 2026 and 2012 with 2 acquisitions each, and 2024 with 1 acquisition. The average number of acquisitions per year from 2020 to 2025 is 0.4, and it has completed 2 acquisitions in the current calendar year. The most recent acquisition is EnviroServe, a Cleveland-based provider of railroad and AAR repair services founded in 1990, acquired in August 2026.

Here's the year on year acquisition history of Clean Harbors:

Number of Total Acquisitions

Year	# Acquisitions
2026	2
2024	1
2021	1
2017	1
2016	1
2015	1
2013	1
2012	2
2011	1
2009	1
1989	1

View all Acquisitions by Clean Harbors

Recent acquisitions by Clean Harbors

Clean Harbors's most recent acquisition - EnviroServe is a Provider of railroad services & AAR repair services, founded in 1990 and located in Cleveland. Clean Harbors acquired it in August 2026 for a price of $*****.

Here is the list of all acquisitions by Clean Harbors sorted by the latest acquisition date:

Acquired on	Acquired Company	Acquisition Price	Facilitators	Stake Acquired	Acquisition Multiple
Aug 19, 2026	EnviroServe	uzvp	wbnl	44	145
Jul 17, 2026	Chambers Equity Financial	pwpi	afyp	27	167
Feb 06, 2024	HEPACO	kksy	zejr	93	543
Aug 04, 2021	HydroChemPSC	iqmg	miug	53	711
May 11, 2017	Lonestar West	btyx	tjgw	87	520