Clean Harbors, Inc. (CLH)

Clean Harbors Employees

Clean Harbors had 22,591 employees as of December 31, 2025. The number of employees decreased by 205 or -0.90% compared to the previous year.

• Employees: 22,591
• Change (1Y): -205
• Growth (1Y): -0.90%
• Revenue / Employee: $266,958
• Profits / Employee: $17,307
• Market Cap: 14.80B

Employees History

Date	Employees	Change (1Y)	Growth (1Y)
Dec 31, 2025	22,591	-205	-0.90%
Dec 31, 2024	22,796	1,775	8.44%
Dec 31, 2023	21,021	761	3.76%
Dec 31, 2022	20,260	1,160	6.07%
Dec 31, 2021	19,100	5,100	36.43%
Dec 31, 2020	14,000	-400	-2.78%
Dec 31, 2019	14,400	200	1.41%
Dec 31, 2018	14,200	1,500	11.81%
Dec 31, 2017	12,700	300	2.42%
Dec 31, 2016	12,400	-500	-3.88%
Dec 31, 2015	12,900	-100	-0.77%
Dec 31, 2014	13,000	0	-
Dec 31, 2013	13,000	-180	-1.37%
Dec 31, 2012	13,180	4,860	58.41%
Dec 31, 2011	8,320	1,480	21.64%
Dec 31, 2010	6,840	441	6.89%
Dec 31, 2009	6,399	1,595	33.20%
Dec 31, 2008	4,804	35	0.73%
Dec 31, 2007	4,769	195	4.26%
Dec 31, 2006	4,574	674	17.28%
Dec 31, 2005	3,900	108	2.85%
Dec 31, 2004	3,792	94	2.54%
Dec 31, 2003	3,698	-309	-7.71%
Dec 31, 2002	4,007	2,528	170.93%
Dec 31, 2001	1,479	20	1.37%
Dec 31, 2000	1,459	234	19.10%
Dec 31, 1999	1,225	-3	-0.24%
Dec 31, 1998	1,228	99	8.77%
Dec 31, 1997	1,129	-84	-6.92%
Dec 31, 1996	1,213	-225	-15.65%
Dec 31, 1995	1,438	-35	-2.38%
Dec 31, 1994	1,473	-	-

Sources: Annual number of employees according to filings submitted to the U.S. Securities and Exchange Commission (SEC). Data is also manually gathered from company press releases, IPO filings, and other official sources.