Clean Harbors, Inc. (CLH)
NYSE: CLH · Real-Time Price · USD
306.20
-1.13 (-0.37%)
Apr 28, 2026, 4:00 PM EDT - Market closed

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
Eric W. Gerstenberg Co-Chief Executive Officer, Co-President and Director
Alan S. McKim Founder, Chief Technology Officer and Executive Chairman
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
George L. Curtis Executive Vice President of Pricing and Proposals
Greg Malerbi Senior Vice President and Treasurer
Robert W. Harrison Executive Vice President of Health and Safety

Latest SEC Filings

Date Type Title
Apr 10, 2026 ARS Filing
Apr 10, 2026 DEFA14A Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Apr 10, 2026 DEF 14A Other definitive proxy statements
Mar 26, 2026 SCHEDULE 13G/A Filing
Mar 18, 2026 144 Filing
Mar 18, 2026 144 Filing
Mar 17, 2026 144 Filing
Mar 4, 2026 144 Filing
Feb 23, 2026 144 Filing
Feb 20, 2026 144 Filing