On the Record · Clean Harbors
Clean Harbors acquisitions, on the record
The businesses Clean Harbors bought and sold, as its annual reports describe them, with the cash it reported paying for acquisitions each year and every deal filing since 2016.
Deals its annual reports describe
| Business | Deal | When | Value |
|---|---|---|---|
Thompson Industrial Services, LLC ("Thompson Industrial")Word for word“In 2023, we acquired Thompson Industrial Services, LLC ("Thompson Industrial") for an all-cash purchase price of $110.9 million, net of cash acquired.” 10-K for 2023 | acquisition | — | $110.9 million, net of cash acquired |
two privately-owned businessesWord for word“In 2022, we acquired two privately-owned businesses for a collective purchase price of $91.5 million.” 10-K for 2023 | acquisition | In 2022 | $91.5 million |
a line of business from our non-core operationsWord for word“Additionally, we sold a line of business from our non-core operations for a price of $18.8 million.” 10-K for 2023 | divestiture | — | $18.8 million |
HEPACOWord for word“On February 2, 2024, the Company signed a definitive agreement with Gryphon Investors, Inc. to acquire HEPACO, a leading provider of specialized environmental and emergency response services in the Eastern United States, for $ 400.0 million in cash, subject to working capital and other adjustments.” 10-K for 2023 | agreed acquisition | February 2, 2024 | — |
a privately-owned company (waste oil collection and re-refining business, southeastern US)Word for word“On June 17, 2022, the Company acquired a privately-owned company for an all-cash purchase price of approximately $ 78.9 million, net of cash acquired.” 10-K for 2023 | acquisition | June 17, 2022 | approximately $ 78.9 million, net of cash acquired |
a privately-owned business (oil collection operations, southeastern United States)Word for word“On December 9, 2022, the Company acquired a privately-owned business for $ 12.6 million cash consideration.” 10-K for 2023 | acquisition | December 9, 2022 | $ 12.6 million cash consideration |
LJ Energy Services Intermediate Holding Corp. and its subsidiaries ("HydroChemPSC")Word for word“On October 8, 2021, the Company completed its acquisition of LJ Energy Services Intermediate Holding Corp. and its subsidiaries (collectively, “HydroChemPSC”), a privately owned company, for an all-cash purchase price of approximately $ 1.23 billion.” 10-K for 2023 | acquisition | October 8, 2021 | approximately $ 1.23 billion |
a privately-owned business (SKSS south central United States network)Word for word“On March 27, 2021, the Company acquired a privately-owned business for $ 22.8 million cash consideration.” 10-K for 2023 | acquisition | March 27, 2021 | $ 22.8 million cash consideration |
HEPACO Blocker, Inc. and its subsidiaries (HEPACO)Word for word“On March 22, 2024, the Company completed its acquisition of HEPACO for an all-cash purchase price of $ 392.2 million, net of cash acquired and after the settlement of working capital in the third quarter of 2024.” 10-K for 2024 | acquisition | March 22, 2024 | — |
Noble Oil Services, Inc. and its subsidiaries (Noble)Word for word“On March 1, 2024, the Company acquired Noble Oil Services, Inc. and its subsidiaries (collectively “Noble”) for an all-cash purchase price of $ 68.7 million, net of cash acquired and after the settlement of working capital in the second quarter of 2024.” 10-K for 2024 | acquisition | March 1, 2024 | — |
three additional privately-owned businessesWord for word“During 2024, the Company completed the acquisition of three additional privately-owned business for $ 17.1 million in total cash consideration.” 10-K for 2024 | acquisition | During 2024 | — |
Noble Oil Services, Inc. and its subsidiariesWord for word“On March 1, 2024, the Company acquired Noble Oil Services, Inc. and its subsidiaries (collectively “Noble”) for an all-cash purchase price of $ 68.7 million, net of cash acquired.” 10-K for 2025 | acquisition | March 1, 2024 | $ 68.7 million, net of cash acquired |
| Fiscal year ended | Cash paid for acquisitions (net of cash acquired) | Cash received from selling businesses | Goodwill from acquisitions |
|---|---|---|---|
| 2016-12-31 | $206.9 million | $47.1 million | $45.8 million |
| 2017-12-31 | $49.2 million | $45.4 million | $8.7 million |
| 2018-12-31 | $151 million | $0 | $40.7 million |
| 2019-12-31 | $29.4 million | $4.7 million | $12.6 million |
| 2020-12-31 | $8.8 million | $7.7 million | $1.4 million |
| 2021-12-31 | $1.25 billion | $0 | $699.8 million |
| 2022-12-31 | $86.3 million | $16.8 million | $34.5 million |
| 2023-12-31 | $119.6 million | $750,000 | $39.3 million |
| 2024-12-31 | $478 million | $750,000 | $193.4 million |
| 2025-12-31 | $0 | $4.3 million | — |
Deal filings since 2016
- 2026-10-05 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2025-10-10 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2024-10-11 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2024-07-02 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2024-03-25 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2023-12-28 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2023-01-25 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2023-01-18 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2021-10-12 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2021-10-12 Form 8-K, Item 2.01: Completion of Acquisition or Disposition of Assets
- 2021-08-04 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2020-10-30 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2019-07-03 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2019-06-19 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2018-07-20 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2018-04-17 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2018-02-28 Form 8-K, Item 2.01: Completion of Acquisition or Disposition of Assets
- 2017-06-30 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2016-11-02 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
- 2016-03-17 Form 8-K, Item 1.01: Entry into a Material Definitive Agreement
Read from Clean Harbors’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-02-18. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.