ETB Arizona, a Leading Provider of TAB services and Fire & Life Safety Certifications in the Greater Phoenix Area Joins the Palmetto Family
June 4, 2025 – Phoenix, AZ and Greenville, SC – Palmetto Air & Water Balance, LLC (“Palmetto” or the “Company”), a people-first, high-growth independent Testing, Adjusting, Balancing (TAB) and Critical Environment certification business, is pleased to announce the acquisition of ETB Arizona (“ETB”), a leading provider of TAB services and Fire & Life Safety certifications in the greater Phoenix market.
ETB has served commercial and industrial clients across Central and Southern Arizona for over 25 years, earning a reputation for technical precision and outstanding customer care. This transaction marks a planned entry into the Southwestern United States and significantly expands the Palmetto footprint in one of the fastest-growing metropolitan areas in the country.
“ETB’s deep local expertise and commitment to excellence make them the perfect partner for Palmetto as we enter the Phoenix market,” said Rob Gannett, Chief Executive Officer of Palmetto Air & Water Balance. “We are thrilled that TJ and Mary Stewart—who have been instrumental in ETB’s success—will continue in leadership roles to guide our Phoenix operations. Their knowledge of the market and dedication to quality will ensure a seamless integration and an even stronger service offering for our new and existing customers.”
Mr. Stewart commented, “Partnering with Palmetto means we can build on the strong local foundation Mary and I have forged in Phoenix, leveraging Palmetto’s vast resources and technology platforms. The combination will allow us to grow rapidly—expanding our team, enhancing our technical capabilities, and delivering even greater responsiveness and value to our clients.”
This acquisition represents Palmetto’s fifth add-on as an SRM Equity Partners portfolio company, following transactions with N.D. White Engineering Services, Air Balancing Company, Delta-T Ltd., and Testing Specialties, Inc. Palmetto continues to pursue strategic partnerships that accelerate growth and extend our service capabilities across key U.S. markets.
The transaction was led by John Cote and Beau Brace of SRM Equity Partners. Palmetto was represented by Nelson Mullins Riley & Scarborough, and Deerpath Capital Management provided financing for the transaction. Terms of the transaction were not disclosed.
About Palmetto Air & Water Balance:
Founded in 1989 and headquartered in Greenville, South Carolina, Palmetto Air & Water Balance operates 22 offices across North Carolina, South Carolina, Virginia, Tennessee, Texas, and Arizona with over 220 teammates. Palmetto is a leader in the Testing, Adjusting, and Balancing and Critical Environment certification industries, validating the performance of HVAC and airflow and air filtration systems for Healthcare, Life Sciences, Education, Institutional, Commercial and Industrial facilities.