Clean Harbors completes EnviroServe and ES&H acquisitions for $775 million
The environmental services provider funded the deals using a $600 million senior notes offering and available cash.
Key takeaways
- Clean Harbors Inc. (CLH) completed its acquisitions of EnviroServe and ES&H for a combined purchase price of $775 million on Oct. 5, 2026, funded through available cash and a $600 million senior notes offering.
Clean Harbors, Inc. (CLH) said on Monday that it completed its acquisitions of EnviroServe and ES&H for a combined purchase price of $775 million. The company announced the transaction in a regulatory filing and press release on Oct. 5, 2026.
The two acquisitions expand the company's Technical Services and Field Services businesses. Clean Harbors funded the purchases using available cash and a recently completed $600 million senior notes offering.
On a combined basis, EnviroServe and ES&H are expected to generate annual revenues of approximately $340 million. The businesses carry a post-synergized annual Adjusted EBITDA of approximately $87 million, equating to a post-synergy acquisition multiple of 8.9 times Adjusted EBITDA.
"The acquisitions of EnviroServe and ES&H greatly enhance our Technical Services and Field Services businesses," Eric Gerstenberg, Co-Chief Executive Officer of Clean Harbors, said in a statement.
Gerstenberg said EnviroServe's strategically located 10-day transfer facilities expand Technical Services collection capabilities and create additional opportunities to leverage volume into the disposal and recycling network. He also said that ES&H deepens the company's Field services presence and expands response capabilities in petrochemical and marine corridors, noting the company holds the U.S. Coast Guard's highest Oil Spill Response Organization classification.
Mike Battles, Co-Chief Executive Officer of Clean Harbors, said, "We expect to generate substantial shareholder value from these transactions, particularly given their post-synergy multiples and cross-selling potential."
Headquartered in Sandy, Utah, EnviroServe serves nearly 2,500 customers through a network of 40 locations. Its national footprint is supported by permits in 48 states, including 18 10-day transfer facilities, solidification facilities, and railcar cleaning locations. EnviroServe offerings include remediation, rail services, industrial cleaning, emergency response, and hazardous and non-hazardous waste transportation and processing.
Headquartered in Louisiana, ES&H operates 13 service branches primarily in coastal markets. The company provides maritime capabilities including emergency response, field services, and environmental management services.
In connection with the transactions, Clean Harbors issued $600.0 million aggregate principal amount of 6.250% senior notes due 2034 on Oct. 1, 2026. The company utilized $470 million of the net proceeds to finance the EnviroServe purchase price and intends to use the remainder to repay revolving credit facility borrowings incurred to partially finance the ES&H acquisition. The ES&H acquisition closed on Sept. 18, 2026, and the EnviroServe acquisition closed on Oct. 2, 2026.