Clean Harbors, Inc. (CLH)
NYSE: CLH · Real-Time Price · USD
301.65
+2.26 (0.75%)
At close: Jun 26, 2026, 4:00 PM EDT
301.65
0.00 (0.00%)
After-hours: Jun 26, 2026, 7:00 PM EDT

Company Description

Clean Harbors, Inc. provides environmental and industrial services in the United States and Canada.

The company operates through two segments: Environmental Services and Safety-Kleen Sustainability Solutions.

The Environmental Services segment collects, transports, treats, recycles, and disposes hazardous and non-hazardous waste, such as resource recovery, physical treatment, incineration, landfill disposal, wastewater treatment, lab chemicals disposal, and explosives management services; and offers CleanPack services, including collection, identification, categorization, specialized packaging, transportation, and disposal of laboratory chemicals and household hazardous waste.

This segment also provides industrial maintenance and specialty industrial services; and utilizes specialty equipment and resources that perform field services.

The Safety-Kleen Sustainability Solutions segment provides containerized waste, parts-washer, and vacuum services for automobile repair shops, car and truck dealers, metal fabricators, machine manufacturers, fleet maintenance shops, and other automotive, industrial, and retail customers; collects and transports for hazardous and non-hazardous containerized waste for recycling or disposal; machine cleaning and maintenance, and disposal and replenishment of clean solvent or aqueous fluids; and vacuum services to remove solids, residual oily water, and sludge and other fluids from customers' oil/water separators, sumps, and collection tanks, as well as removes and collects waste fluids found at large and small industrial locations, including metal fabricators, auto maintenance providers, and general manufacturers.

This segment also manufactures, formulates, and packages lubricants and other products. Clean Harbors, Inc. was incorporated in 1980 and is headquartered in Norwell, Massachusetts.

Clean Harbors, Inc.
Clean Harbors logo
Country United States
Founded 1980
IPO Date Nov 24, 1987
Industry Waste Management
Sector Industrials
Employees 22,591
CEO Eric W. Gerstenberg

Contact Details

Address:
42 Longwater Drive
Norwell, Massachusetts 02061-9149
United States
Phone 781 792 5000
Website cleanharbors.com

Stock Details

Ticker Symbol CLH
Exchange NYSE
Stock Type Common Stock
Fiscal Year January - December
Reporting Currency USD
CIK Code 0000822818
CUSIP Number 184496107
ISIN Number US1844961078
Employer ID 04-2997780
SIC Code 4955

Key Executives

Name Position
Michael L. Battles CPA Co-Chief Executive Officer, Co-President and Director
Eric W. Gerstenberg Co-Chief Executive Officer, Co-President and Director
Alan S. McKim Founder, Chief Technology Officer and Executive Chairman
Eric J. Dugas CPA Executive Vice President and Chief Financial Officer
Brian P. Weber President of Safety-Kleen Sustainability Solutions
Jeroen Diderich President of Environmental Sales and Service
Sharon M. Gabriel Executive Vice President and Chief Information Officer
James R. Buckley Senior Vice President of Investor Relations and Corporate Communications
Michael R. McDonald J.D. General Counsel

Latest SEC Filings

Date Type Title
May 26, 2026 144 Filing
May 20, 2026 8-K Current Report
May 20, 2026 8-K Current Report
May 15, 2026 SCHEDULE 13G/A Filing
May 15, 2026 SCHEDULE 13G/A Filing
May 14, 2026 8-K Current Report
May 6, 2026 10-Q Quarterly Report
May 6, 2026 8-K Current Report
Apr 10, 2026 ARS Filing
Apr 10, 2026 DEFA14A Additional definitive proxy soliciting materials and Rule 14(a)(12) material