Companies: 10,795·Total market cap: $144.5T
Clean Harbors, Inc.

Clean Harbors, Inc.

CLHNYSEIndustrials● Active
$281.58
$-1.45(-0.51%)
Market Cap$14.9B
P/E Ratio—
52W High$316.98
52W Low$201.34
Overview

Clean Harbors, Inc. (CLH) Number of Employees – History & Annual Headcount

Annual SEC headcount, year-over-year change, and per-employee efficiency — chart and full history below.

SEC EDGAR · FMP · CLH · as of Feb 18, 2026

Latest filing snapshot

22,155
-641-2.81%vs prior year

Clean Harbors, Inc. (CLH) employee data is sourced from the annual SEC 10-K filing. As of 2025, full-time employees only. Global consolidated headcount. View SEC filing ↗

SEC 10-K·Period end: 2025-12-31·Full-time · Global
Total Employees
22,155
Change (1Y)
-641
Growth % (1Y)
-2.81%
Revenue / Employee
$272.2K
Net Income / Employee
$17.6K
Market Cap
$14.9B

CLH Employee Count

1994 – 2025 · Annual · SEC filing

Source: SEC annual filings · Hover bar to view year data · Click to view original filing

Employees History

Filing DateEmployeesChange (1Y)Growth (1Y)SEC filing link
2026-02-1822,155-641-2.81%
2025-02-1922,796+1,775+8.44%
2024-02-2121,021+1,246+6.30%
2023-03-0119,775+1,475+8.06%
2022-02-2318,300+4,800+35.56%
2021-02-2413,500-900-6.25%
2020-02-2614,400+200+1.41%
2019-02-2714,200+1,500+11.81%
2018-02-2812,700+300+2.42%
2017-02-2212,400-500-3.88%

▸ Source: SEC Annual Reports (Form 10-K / 20-F). Employee counts as of fiscal year end. Click the ↗ icon at the end of a row to open the original SEC filing in a new tab.

Related Companies — Employee Count

Waste Management
#SymbolCompanyEmployees
#1
Aramark
ARMK
Aramark
266,680#2
Booz Allen Hamilton Holding Corporation
BAH
Booz Allen Hamilton Holding Corporation
35,900#3
Clean Harbors, Inc.
CLH
Clean Harbors, Inc.YOU
22,155#4
Embraer S.A.
ERJ
Embraer S.A.
20,923#5
TopBuild Corp.
BLD
TopBuild Corp.
13,984#6
Acuity Brands, Inc.
AYI
Acuity Brands, Inc.
13,200#7
Crane Company
CR
Crane Company
7,500
Source: /stock-peers + /profile.fullTimeEmployees · Click row → /employees · Sorted by headcount · CLH peer comparison

About CLH employees

CLH Employees · Headcount

Clean Harbors, Inc. (CLH) employee data is sourced from the annual SEC 10-K filing. As of 2025, Clean Harbors, Inc. had 22,155 full-time employees globally. Full-time employees only. Global consolidated headcount.

Clean Harbors, Inc. employs 22,155 full-time employees as of the latest filing within the Waste Management industry. Revenue per employee stands at $272,211, reflecting the company's operational efficiency.

Clean Harbors, Inc.'s workforce decreased by 641 (2.81%) in 2025 compared to the prior fiscal year. The historical trend reflects the company's expansion and contraction cycles.

Clean Harbors, Inc.'s revenue per employee of $272,211 positions it among the notable performers in the Waste Management sector for operational efficiency.

RevenueFinancial statementsNet incomeSEC filingsPrice historyForecast & ratingsOwnershipEarnings

Frequently Asked Questions

CLH Employees · 5 questions

As of the latest SEC 10-K filing (2025), Clean Harbors, Inc. had 22,155 full-time employees globally. This figure is sourced from the company's mandatory annual disclosure to the SEC.

Clean Harbors, Inc. employee counthow many employees does Clean Harbors, Inc. haveCLH total employees 2025

▸ Data source: FMP /historical-employee-count · SEC EDGAR annual filings · As reported · Global consolidated headcount · As of 2026-02-18