EnviroServe Acquires CG Environmental

One Rock Capital Partners Acquires EnviroServe from Savage

January 19, 2023

Environmental Services

One Rock Capital Partners (through an affiliate) completed the acquisition of EnviroServe Inc., a national provider of environmental remediation, waste management and emergency response services, from Savage. One Rock said it will work with EnviroServe's leadership to enhance operations, expand the company's geographic footprint and grow the business; the company operates from over 35 locations in the U.S. and employs more than 550 team members.

EnviroServe (One Rock Portfolio Company) Acquires Environmental Projects, Inc.

August 7, 2024

Environmental Services

EnviroServe Inc., a national environmental and waste management provider and portfolio company of One Rock Capital Partners, has acquired Environmental Projects, Inc. (EPI), a Maine-based environmental remediation and waste management services provider headquartered in Auburn, Maine. The acquisition is an add-on to the EnviroServe platform that establishes the company’s strategic presence in New England and expands its nationwide network of remediation and waste-handling capabilities.

Monomoy Capital Partners Acquires EnviroTech Services

January 23, 2024

Industrial Services

Monomoy Capital Partners has acquired EnviroTech Services, Inc., a founder-owned distributor and provider of road surface products and winter road maintenance services headquartered in Greeley, Colorado. Monomoy — its first institutional investor — plans to invest in operational improvements, logistical efficiencies and geographic expansion across the company’s West and Midwest footprint.

Environ Energy Acquires Houston-based CSD Energy Advisors

September 3, 2025

Energy

Environ Energy has acquired Houston-based CSD Energy Advisors, adding nearly 1,000 clients including multiple Fortune 500 companies and several of Texas's largest industrial energy consumers. The CSD co-founders and their team will join Environ to expand the firm's energy procurement, demand response, and storage capabilities as part of Environ's continued PE-backed roll-up strategy with partner 424 Capital.

Heritage-Crystal Clean Acquires Envirosafe Services of Ohio

January 9, 2024

Environmental Services

Heritage-Crystal Clean, Inc., a portfolio company of investment affiliates of J.F. Lehman & Company, has acquired Envirosafe Services of Ohio, a fully permitted hazardous waste treatment, storage and disposal facility. The deal expands Crystal Clean's hazardous waste infrastructure and processing capabilities, allowing the company to better support its commercial and industrial customer base.

Miller Environmental Group Acquires ACE Environmental Services

November 10, 2025

Environmental Services

Miller Environmental Group, a Coalesce Capital portfolio company, has acquired ACE Environmental Services, a full-service environmental contractor operating throughout the Mid-Atlantic. The deal expands Miller's Mid-Atlantic footprint and capabilities in remediation, emergency response, tank management and industrial cleaning as part of its disciplined consolidation strategy.