Alliance Technical Group Acquires ESC Spectrum: A New Era in Emissions Monitoring

Jul 7, 2025
2 min read

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. ESC Spectrum is recognized as the leading provider of Continuous Emissions Monitoring Systems (CEMS) and Data Acquisition Systems (DAS) services, boasting over 50 years of innovation and client success.

Strengthening Environmental Compliance

For decades, ESC Spectrum has empowered industrial facilities to meet stringent air-emissions regulations. They have achieved this through a vertically integrated portfolio of software, hardware, and field services. By integrating ESC Spectrum’s talent and technology into Alliance, the combined organization enhances its expertise in CEMS and DAS engineering, data analytics, integration, and lifecycle support. This expansion significantly boosts Alliance’s capacity to serve clients across all regulated industries and geographical locations.

“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.”

Advantages of the Acquisition

The acquisition enables Alliance to achieve several key objectives:

Deliver a Comprehensive CEMS Platform: This includes everything from integration and installation to real-time data management, regulatory reporting, and long-term maintenance.
Bundle Services: By combining CEMS, Stack Testing, Environmental Compliance, and Laboratory Testing, Alliance can lower the total cost of compliance and streamline vendor management for clients.
Scale Commercial Models: ESC Spectrum’s commercial model will be scaled across Alliance’s nationwide service network, accelerating time-to-value for thousands of facilities already under Alliance care.
Invest in Data Analytics: The focus will be on 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.”

A Strategic Growth Milestone

This transaction marks a significant milestone in Alliance’s strategic growth plan. The goal is to assemble the industry’s most specialized technical capabilities under one roof. This empowers 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. MSCP has extensive experience supporting growth-oriented businesses in the industrial and environmental services sectors. Their involvement has been critical in supporting Alliance’s acquisition strategy and operational expansion. This is especially important as the company scales to meet growing regulatory and sustainability demands across the market.

Jones Day served as legal advisor to Alliance.

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