Decatur, AL and Pensacola, FL – July 7, 2025 

Acquisition unites industry-leading expertise to create the most comprehensive emissions-compliance platform worldwide

Decatur, AL and Pensacola, FL – July 7, 2025 – Alliance Technical Group (“Alliance”), a premier provider of environmental compliance, on-site testing and monitoring, and laboratory testing services, today announced the acquisition of ESC Spectrum, the premier provider of Continuous Emissions Monitoring Systems (CEMS) and Data Acquisition Systems (DAS) services with more than 50 years of innovation and client success.

For decades, ESC Spectrum has helped industrial facilities meet stringent air-emissions regulations through its vertically integrated portfolio of software, hardware, and field services. By bringing ESC Spectrum’s talent and technology into Alliance, the combined organization gains extensive experience in CEMS and DAS engineering, data analytics, integration, and lifecycle support, extending Alliance’s ability to serve clients across every regulated industry and geography.

“This transaction is a watershed moment for our company and the emissions monitoring marketplace,” said Chris LeMay, Chief Executive Officer of Alliance. “ESC Spectrum’s proven, end-to-end solutions and scale instantly elevate Alliance to the leading provider of CEMS and DAS services across the globe. Together we will deliver unparalleled value – pairing world-class monitoring technology with the industry’s largest field-service, parts, and technology footprint.”

The acquisition enables Alliance to:

• Deliver the first truly end-to-end CEMS platform – from integration and installation to real-time data management, regulatory reporting, and long-term maintenance
• Bundle CEMS, Stack Testing, Environmental Compliance, and Laboratory Testing to lower the total cost of compliance and streamline vendor management for clients
• Scale ESC Spectrum’s commercial model across Alliance’s nationwide service network, accelerating time-to-value for thousands of facilities already under Alliance care
• Invest in next-generation emissions data analytics, unlocking predictive insights that help clients optimize operations, minimize downtime, and stay ahead of evolving regulations

“Joining forces with Alliance amplifies everything we do best,” added Jeff Rabensteine, President of ESC Spectrum. “We now have the resources and reach to accelerate product innovation, expand field support, and ultimately help more clients achieve comprehensive compliance in a rapidly changing regulatory landscape.”

The transaction represents a significant milestone in Alliance’s strategic growth plan to assemble the industry’s most specialized technical capabilities under one roof – empowering regulated industries across North America to meet their environmental obligations with confidence.

Alliance is backed by Morgan Stanley Capital Partners (MSCP), a leading private equity firm with deep experience supporting growth-oriented businesses in the industrial and environmental services sectors. MSCP has played a critical role in supporting Alliance’s acquisition strategy and operational expansion as the company scales to meet growing regulatory and sustainability demands across the market.

Jones Day served as legal advisor to Alliance.

About Alliance Technical Group

Alliance Technical Group, LLC (Alliance), headquartered in Decatur, AL, is the premier environmental services and solutions company dedicated to helping facilities achieve their environmental goals and navigate regulatory changes. With more than 2,200 employees located in 60-plus offices across the U.S. and Canada, Alliance specializes in Environmental Compliance, On-site Testing and Monitoring, and Laboratory Testing and Analysis. Driven by innovation, committed to service, and focused on client success, Alliance delivers on the promise of reliability, results, and responsiveness.

Learn more about how Alliance helps clients maximize their environmental opportunities: www.alliancetg.com