Triumvirate Environmental Acquires Environmental Waste Minimization LLC (EWMI)

Berkshire Partners Makes Growth Investment in Triumvirate Environmental Valuing It at $1.8 Billion

February 4, 2025

Environmental Services

Berkshire Partners has made a significant growth investment in Triumvirate Environmental, valuing the environmental services company at $1.8 billion. The deal will support Triumvirate’s geographic expansion, new service lines, enhanced technology capabilities, and establishment of a broad-based employee ownership program; founder and CEO John McQuillan and the management team remain in place.

Montrose Environmental Group Acquires TriAD Environmental Consultants, Inc.

August 4, 2022

Environmental Services

Montrose Environmental Group (NYSE: MEG) acquired TriAD Environmental Consultants, Inc., a Nashville-based environmental consulting firm founded in 1996. TriAD's founders and principals will join Montrose's Assessment, Permitting & Response (AP&R) segment to strengthen permitting, compliance and remediation capabilities across the Southeast; terms were not disclosed.

3i Group plc Acquires EC Waste, LLC from Post Capital Partners

November 30, 2021

Environmental Services

3i Group plc has acquired EC Waste, LLC, a leading non-hazardous solid waste services provider in Puerto Rico, from Post Capital Partners. EC Waste serves over 100,000 residential and more than 8,500 commercial and industrial customers, operates multiple landfill sites and transfer stations, employs over 350 people, and hosts a large renewable natural gas project; financial terms were not disclosed.

Metro Compactor Service Acquires Miller Waste Solutions Group

July 5, 2023

Environmental Services

Metro Compactor Service has acquired Miller Waste Solutions Group (formerly WSG), the service-and-manufacturing division of Miller Waste Systems, to expand its waste- and recycling-equipment capabilities in Ontario. The deal increases Metro's fleet and technician capacity to better serve multi-residential, commercial and construction customers across the province.

Arcwood Environmental Acquires MXI Environmental Services / Dynamic Recycling

January 7, 2026

Environmental Services

Arcwood Environmental, an EQT Infrastructure–backed national environmental services platform, has acquired MXI Environmental Services / Dynamic Recycling, a Virginia-based provider of hazardous and non-hazardous waste management, recycling, and household hazardous waste programs. The add-on expands Arcwood's waste transportation, recycling and HHW capabilities and strengthens its operational footprint across the Eastern United States.

TriArtisan Capital Advisors Acquires Majority Stake in EnergySolutions

May 16, 2022

Energy

TriArtisan Capital Advisors, an existing minority investor, acquired the remaining majority ownership interest in EnergySolutions from Energy Capital Partners. The transaction, which closed in May 2022, positions TriArtisan to provide long-term ownership stability and support EnergySolutions' expansion across nuclear utility, commercial and government waste management and decommissioning markets.