Clean Harbors, Inc. of Norwell announced this month that it entered into a definitive agreement to acquire EnviroServe, a national provider of environmental and waste management services, from an affiliate of One Rock Capital Partners, LLC for $470 million in cash. The acquisition is expected to close in the second half of 2026, subject to regulatory approval and other customary closing conditions.
“EnviroServe is an ideal acquisition for us given its national footprint, permitted locations and recurring revenue,” said Eric Gerstenberg, Co-Chief Executive Officer of Clean Harbors. “The addition of EnviroServe’s strategically located, 10-day transfer facilities further strengthen our Technical Services business and support increased throughput across our disposal and recycling portfolio. We envision meaningful cross-selling opportunities as their customers will now have direct access to our industry-leading network and broad suite of environmental and industrial services. At the same time, EnviroServe’s emergency response assets and rail cleaning facilities will enhance our Field Services business.”
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, which include 18 10-day transfer facilities, several solidification facilities and railcar cleaning locations. Offerings include remediation, rail services, industrial cleaning and emergency response, as well as hazardous and non-hazardous waste transportation and processing.
EnviroServe employs more than 700 people and operates a specialized fleet of more than 700 vehicles, including more than 100 vacuum trucks. Its customers span a diverse range of industries and 85% of its revenue is recurring in nature, with the average tenure of its top 10 customers exceeding 16 years.
