TRC Companies Acquires Shoener Environmental

TRC Companies Acquires ESS Group

February 16, 2022

Engineering Services

TRC Companies has acquired ESS Group, a Northeast-based environmental and coastal engineering firm, to strengthen TRC's power & renewable energy and coastal engineering capabilities. The acquisition brings ESS's expertise in coastal resiliency, flood hazard vulnerability studies, water resources, and offshore wind support into TRC's broader environmental and engineering platform.

TRC Companies Acquires Strategic Energy Group

August 25, 2025

Energy

TRC Companies, a global professional services firm focused on the energy transition, has acquired Strategic Energy Group (SEG), a North American leader in strategic energy management. The acquisition expands TRC’s energy-efficiency and strategic energy management capabilities across utilities, commercial, and industrial customers.

TRC Companies Inc. Acquires Blue Oak Energy

July 12, 2022

Energy

TRC Companies Inc. has acquired Sacramento-based Blue Oak Energy, a solar and energy storage engineering firm, to expand TRC’s renewable energy and Climate Solutions capabilities. Blue Oak’s team has delivered over 6 GW of solar projects (and supported over 12 GW through development) and is licensed in 30+ states, broadening TRC’s utility- and commercial-scale PV and storage engineering capacity.

Trinity Consultants Acquires Zanjero

May 27, 2025

Environmental Services

Trinity Consultants has acquired Zanjero Inc., a California-based water resources and planning consultancy, to strengthen Trinity's Water & Ecology practice. Zanjero will operate as a business unit within Trinity's Water & Ecology division, with its leadership team remaining in place to expand service capabilities and geographic reach across the Western U.S.

TRC Companies Acquires 1Source Safety and Health

November 11, 2020

Environmental Services

TRC Companies, a Windsor, Connecticut–based engineering and environmental consulting firm, has acquired 1Source Safety and Health, a specialized industrial hygiene and safety management consultancy based in Exton, Pennsylvania. The acquisition brings ~25 certified industrial hygienists and safety professionals into TRC, expanding its building sciences, industrial hygiene and environmental health & safety capabilities and strengthening its presence in Pennsylvania.

True Environmental (Halle Capital-backed) Acquires Ensero Solutions

January 8, 2025

Environmental Services

True Environmental, a Halle Capital-backed environmental consulting and engineering platform, has acquired Ensero Solutions, a provider of permitting, environmental assessment, water management, remediation technologies, and facility operations. The acquisition is an add-on to True Environmental's platform to expand service capabilities and geographic presence across the U.S. and Canada.