Identity graph
Clean Harbors headquarters, locations and relationships
- Legal name
- Clean Harbors, Inc.
- Industry
- Cleaning Services
- Founded
- 1980
- Ticker
- NYSE: CLH
- Phone
- +1 781 792 5000
- Website
- cleanharbors.com
Clean Harbors office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Norwell | Massachusetts | United States | Headquarters |
| — | — | Australia | Office |
| — | — | North Macedonia | Office |
| Dickinson | North Dakota | United States | Office |
| Houston | Texas | United States | Office |
| Montgomery | Alabama | United States | Office |
- Parent company
- No parent company recorded in GraphIQ.ai.
- Competitors
- Clean Harbors competes with 12 organizations in the GraphIQ.ai identity graph.
Verified from public filings, company websites and news · Methodology
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Government
About Clean Harbors
Clean Harbors (NYSE: CLH) is headquartered in Norwell, Massachusetts, United States. Founded in 1980, the company has 12 recorded locations across 3+ countries and employs approximately 25,000 people worldwide.
Where is Clean Harbors's main office?
Clean Harbors's main headquarters office is located at 42 Longwater Drive, Norwell, Massachusetts 02061-9149, United States. This is the company's primary corporate address.
Clean Harbors regional offices
Beyond its headquarters in Norwell, Clean Harbors has recorded locations in United States, Australia and North Macedonia.
Clean Harbors contact information
The main switchboard for Clean Harbors headquarters can be reached at +1 781 792 5000. Official website: cleanharbors.com.
What does Clean Harbors do?
Clean Harbors, Inc. provides a variety of environmental remediation and industrial waste management services to customers in the United States and Puerto Rico. The Company's services include treatment and disposal of hazardous and non-hazardous solid and liquid waste, surface remediation, groundwater restoration, and waste packaging, as well as analytical testing and consulting.
One entity, every stage
Put Clean Harbors to work across your revenue bowtie
- Target Define the market Build the account list from companies shaped like your best customers, Clean Harbors included. Fingerprint search
- Cover Plan territories Clean Harbors's 12 locations roll up to one account, so it lands in one territory, once. Territory planning
- Engage Act on timing Leadership changes, funding and M&A arrive linked to the account, not a loose headline. Signal monitoring
- Convert Close on a resolved record Inbound and closed-won attach to one CRM record, with no duplicates to merge. CRM enrichment
- Retain Ground every answer Customer teams and AI agents answer from the same entity, with a source and a date. AI agent data layer
- Expand Find the next buyer inside Follow subsidiaries and divisions to the next team that can buy. Account expansion
About the source
What is GraphIQ.ai?
A B2B identity graph. It resolves each organization into one verified entity and maps its parent and subsidiaries, employees, competitors and news signals. Revenue teams use it in the product; AI agents query it through the REST API and MCP server.
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Clean Harbors: frequently asked questions
Where is Clean Harbors headquarters?
42 Longwater Drive, Norwell, Massachusetts 02061-9149, United States.
What is Clean Harbors's phone number?
+1 781 792 5000 (headquarters).
When was Clean Harbors founded?
1980.
How many employees does Clean Harbors have?
About 25,000, as of October 2026 (GraphIQ.ai estimate).
How many offices does Clean Harbors have?
12 locations across 3+ countries, including Dickinson, Houston, Montgomery, Rock Springs.
Is Clean Harbors a public company?
Yes. Clean Harbors trades on NYSE under the ticker CLH.
Questions about GraphIQ.ai
Is GraphIQ.ai a list of companies like a spreadsheet?
No. Each organization resolves to one verified entity linked to its parent, subsidiaries, people and signals, so Clean Harbors here is the same Clean Harbors in your CRM, territory plan and agent answers.
Where does this Clean Harbors data come from?
Public filings, company websites and news, resolved to one entity and continuously updated.