Integra Testing Services, LLC is an engineering services firm specialising in testing, adjusting, and balancing (TAB) for commercial HVAC systems. Founded in 2021 and headquartered in Mentor, Ohio, the company describes itself as the nation's largest independent provider of TAB services for commercial HVAC. It employs more than 600 trained professionals across 26 office locations, operating in 18 U.S. states and Washington D.C., with additional work in Mexico and Guam.
The firm's work is measurement- and verification-heavy, applying standardised test protocols to physical building systems. Its technical domains include air exchange and pressure testing, cleanroom certification, pharmacy certification under USP 797/800, fume hood certification, duct leakage testing, air barrier testing, building commissioning, and broader controlled environment services. These are performed for clients in healthcare, pharmaceutical, laboratory, cleanroom, critical facility, and high-performance commercial building sectors.
Integra Testing Services was formed through the strategic combination of several regional TAB firms. It holds certifications and accreditations from NEBB, AABC, SMACNA, and TABB, and states a philosophy of independent, unbiased testing and verification intended to establish optimal conditions for building owners, design professionals, and end users. The company pairs national coverage with local delivery.






