Alliance Enters New Market with Air Quality Services Acquisition

Align Capital Partners’ (“ACP”) environmental testing and compliance platform Alliance Technical Group (“Alliance” or the “Company”) has acquired Air Quality Services (“AQS”).  Founded in 1998 in Evansville, Indiana, AQS provides source emission (or stack) testing, ambient air monitoring, and continuous emissions monitoring (CEMS) services to customers throughout the Midwestern United States.

AQS is an important acquisition for Alliance as it expands the Company’s service offering through the addition of complementary CEMS services.  Alliance has been active in finding new avenues to better serve its customers; the Company previously expanded into LDAR testing with the acquisitions of the Emissions Monitoring business unit of Bureau Veritas and EMSI in September 2020 and April 2021, respectively.

“Strategically AQS fits from both a geographic and service offering perspective for Alliance.  In addition to adding experienced stack testing and ambient air monitoring professionals, we are entering the CEMS market which allows us to provide our customers with services they have been asking us to include in our offering,” said Alliance CEO Chris LeMay.  “We will continue to look for opportunities to partner with high-quality companies and people, like the AQS team, making us stronger and better positioned to meet our customers’ air-related requests.”

With a national footprint and more than 700 employees, Alliance is continuing to build a best-in-class air emission testing, monitoring, and laboratory analysis platform.  This acquisition represents the Company’s eleventh since 2015 and fourth of 2021.

“It’s been exciting to watch Alliance’s growth over the last five years of our partnership,” ACP Managing Partner Rob Langley said.  “Chris and his team make it a priority to continually enhance the Company’s position, and now it’s an industry leader.”

Operating Partner Dave Perotti, Principal Jack Parks, and Associate Chris Collins worked alongside Mr. Langley on the transaction.

About Alliance Technical Group
Headquartered in Decatur, AL, Alliance is the leading provider of air emissions testing and monitoring solutions to customers throughout the United States.  With expertise in a variety of end markets, Alliance is focused on people, process, and technology to provide unparalleled response and service to assist customers with meeting their air compliance and risk reduction goals.  For more information, please visit, or