Is Clean Harbors Inc an American company?
Yes — Clean Harbors Inc is an American company.
Clean Harbors Inc is incorporated in Massachusetts, United States and headquartered in Norwell, Massachusetts. Its legal-entity record reports no foreign parent — the company is independently American-owned.
The evidence
- Legal name
- CLEAN HARBORS INC
- Incorporated in
- Massachusetts, United States
- Registered office
- BOSTON, the United States
- Headquarters
- Norwell, Massachusetts, United States
- Ultimate owner
- None reported (independent)
- Stock listing
- NYSE: CLH on NYSE
- LEI
- 5493000SJVZVZJKHJF48
Source: GLEIF, the global Legal Entity Identifier registry · checked Jul 26, 2026. A US headquarters or stock listing does not always mean US incorporation — this page reports what the legal-entity registry actually records.
Clean Harbors Inc: origin questions
Is Clean Harbors Inc an American company?
Yes — Clean Harbors Inc is an American company. Clean Harbors Inc is incorporated in Massachusetts, United States and headquartered in Norwell, Massachusetts. Its legal-entity record reports no foreign parent — the company is independently American-owned.
Where is Clean Harbors Inc incorporated?
Clean Harbors Inc is legally incorporated in Massachusetts, United States, according to its GLEIF legal-entity record.
Who owns Clean Harbors Inc?
Clean Harbors Inc reports no parent company in its legal-entity record — it is independently owned rather than a subsidiary.
Is Clean Harbors Inc traded on a US stock exchange?
Yes — Clean Harbors Inc trades under the ticker CLH on the NYSE.
See the full Clean Harbors Inc company profile — financials, stock data and trust credentials — or browse the directory of American companies.