Alliance Technical Group Acquires CK Environmental

Alliance Technical Group Acquires Chemtech Consulting and Air Testing Operations from Civil & Environmental Consultants

December 27, 2023

Environmental Services

Alliance Technical Group acquired Chemtech Consulting Group, Inc. (Mountainside, New Jersey) and the air testing operations of Civil & Environmental Consultants, Inc. (locations in St. Louis, Charlotte and Knoxville) to expand its laboratory and air emissions testing capabilities and geographic footprint. The air testing carve‑out was a divestiture by CEC (advised by AEC Advisors); Alliance said the deals broaden its service coverage across key U.S. markets.

Alliance Technical Group Acquires Environmental 360

June 20, 2025

Environmental Services

Alliance Technical Group acquired Environmental 360, LLC to expand its environmental consulting, monitoring, and compliance capabilities. The deal strengthens Alliance's onsite field services and emissions/compliance monitoring offerings for industrial clients across the United States.

Alliance Technical Group (ACP-backed) Acquires Air Quality Services (AQS)

April 1, 2021

Environmental Services

Alliance Technical Group, the environmental testing and compliance platform backed by Align Capital Partners, has acquired Air Quality Services (AQS), a 1998-founded provider of stack testing, ambient air monitoring, and CEMS services based in Evansville, Indiana. The add-on expands Alliance’s service capabilities into continuous emissions monitoring and strengthens its Midwest footprint.

Alliance Technical Group Acquires Four Environmental Laboratories Nationwide

November 17, 2023

Environmental Services

Alliance Technical Group, a Morgan Stanley Capital Partners–backed environmental testing and services platform, has acquired four independent environmental laboratories — Summit Environmental Technologies (Cuyahoga Falls, OH), Fremont Analytical (Seattle, WA), Orange Coast Analytical (Los Angeles, CA / Phoenix, AZ) and CHESTER LabNet (Portland, OR) — to build a nationwide laboratory network. The add-on deals expand Alliance's capabilities beyond air testing into water, hazardous waste, soil and PFAS/XRF analyses and broaden its geographic coverage across the United States.

Alliance Environmental Group Acquires Coast Environmental

February 24, 2021

Environmental Services

Alliance Environmental Group, LLC has acquired Coast Environmental, a Carlsbad-based provider of indoor air quality management and life-safety services to hospitals and healthcare facilities. The acquisition expands Alliance's environmental remediation and HVAC/IAQ service capabilities, adding expertise in fire stopping, fire damper testing, containment for infection control, kitchen exhaust cleaning, HVAC refurbishment and mold remediation.

Blackstone Energy Transition Partners Acquires Alliance Technical Group

January 6, 2026

Environmental Services

Funds affiliated with Blackstone Energy Transition Partners and other Blackstone funds have acquired Alliance Technical Group (ATG), a Decatur, Alabama–based provider of environmental testing, monitoring and compliance services. ATG operates more than 60 offices and labs across the U.S. and Canada with over 2,200 employees; terms were not disclosed.