ERA Partners Acquires Majority Stake in GeoTility Systems Corp.

Impact Climate Technologies Acquires Heat Transfer Systems of Georgia

January 15, 2026

HVAC & Mechanical

Impact Climate Technologies (ICT), an Ardian-backed HVAC holding company, has acquired Heat Transfer Systems of Georgia, an Alpharetta, Georgia-based provider of cooling towers, heat exchangers, boilers, water filtration and related HVAC equipment and services. The acquisition expands ICT’s presence in the Southeast and adds specialized thermal expertise to its platform; Heat Transfer Systems of Georgia will continue operating under its existing name and leadership.

Trinity Consultants Acquires GeoSystems Analysis

October 22, 2025

Environmental Services

Trinity Consultants has acquired GeoSystems Analysis (GSA), a Tucson-based hydrology and natural resources consultancy with offices in Arizona, New Mexico, and Oregon and additional resources in Nevada and Peru. GSA will operate as a business unit within Trinity's Water & Ecology division, expanding Trinity's water and ecology service capabilities and geographic footprint while preserving GSA's leadership and client continuity.

Subterra Renewables Acquires Earth Drilling Co. and Harris Exploration to Expand Geothermal Drilling Coast-to-Coast

October 27, 2023

Renewable Energy

Subterra Renewables' affiliated companies have acquired Alberta-based Earth Drilling Co. Ltd. and Nevada-based Harris Exploration to expand coast-to-coast geothermal drilling capacity across Canada and the U.S. The deals add experienced drilling teams and rigs, support the launch of a Calgary office led by Matthew Tokarik, and strengthen Subterra's vertically integrated geothermal services and utility offerings.

GZA GeoEnvironmental Acquires Equity Environmental Engineering LLC

February 6, 2023

Environmental Services

GZA GeoEnvironmental has acquired Equity Environmental Engineering LLC, a Mount Olive, New Jersey–based provider of environmental consulting and planning services. The acquisition strengthens GZA’s environmental consulting and planning capabilities across the New York Metro and Mid-Atlantic markets and brings Equity staff into GZA’s Manhattan and Fairfield offices.

EverGen Infrastructure Acquires 67% Interest in GrowTEC (Grow the Energy Circle Ltd.)

July 14, 2022

Energy

EverGen Infrastructure Corp. completed the acquisition of a 67% interest in Grow the Energy Circle Ltd. ("GrowTEC"), a farm-scale biogas facility near Lethbridge, Alberta, for cash consideration and equity. The transaction brings an operating anaerobic digester into EverGen’s Renewable Natural Gas (RNG) platform as the project is upgraded to produce pipeline-quality RNG under an offtake agreement with FortisBC.

Gibraltar Industries Acquires Assets of Thermo Energy Systems

January 17, 2020

Manufacturing

Gibraltar Industries (Nasdaq: ROCK) acquired the assets of Canadian-based Thermo Energy Systems in an all-cash transaction to expand its commercial greenhouse and controlled-environment agriculture capabilities. Thermo is expected to contribute a run-rate of approximately $75 million of annual revenue and the deal strengthens Gibraltar's position in the biologically-grown organic food market.