Across highly regulated facilities, from hospitals and pharmaceutical suites to data centers and research labs, testing and certification are required before spaces can open, operate, and generate revenue. That non-discretionary, recurring demand has turned testing, adjusting, and balancing (TAB) and controlled environment (CE) certification into one of the more sought-after corners of the specialized services landscape. The rapid buildout of AI-driven data centers has also added a powerful new layer of demand, as increasingly dense power and cooling systems must be tested and certified before they can go live.

These factors are driving strong investor interest in the segment, and that appetite was on full display in the recent sale of Integra Testing Services. Harris Williams advised Integra Testing Services, LLC, a portfolio company of Keystone Capital, on its sale to funds managed by Harvest Partners, LP.

Below, senior professionals from our Business Services, Energy, Power & Infrastructure, and Healthcare & Life Sciences Groups discuss the trends drawing investors to TAB and CE services, and how Integra illustrates the segment’s M&A momentum.

An Operational Necessity

Regulatory compliance and mandated certifications are powerful, durable demand drivers. Cleanrooms, pharmaceutical manufacturing environments, hospitals, and other controlled spaces must be tested and certified on fixed schedules to maintain compliance, and new facilities cannot operate until required testing validates that systems are performing as designed. “These obligations create recurring demand that persists regardless of broader market conditions,” says Brian Lucas, a managing director in our Business Services Group.

The value proposition reinforces the category. TAB and CE work typically represents a small fraction of a facility’s total project cost, often under 2%, yet a failure to certify can halt operations, delay openings, and jeopardize accreditation.¹ “It’s less than 2% of project value but 100% of the consequence,” adds Lucas. “That’s why customers prioritize technical competence, reliability, and responsiveness over cost, which supports durable relationships and favorable pricing.”

Talent is another important differentiator. Accredited TAB and CE work requires years of training, formal certification, and field experience, and the supply of qualified technicians has remained constrained while demand continues to grow. “Businesses with the scale to recruit, train, retain, and deploy skilled technicians are highly sought after by customers and investors alike,” says Luke Semple, a managing director in our Energy, Power & Infrastructure Group.

These dynamics are most visible in the fastest-growing end markets. Data centers require increasingly sophisticated testing and commissioning as power densities climb and the industry shifts from air to liquid cooling, a transition that expands the scope of TAB work and raises the technical bar for providers. Life sciences and healthcare facilities, meanwhile, need TAB and CE certification before production or patient care can begin. Against an estimated addressable market of more than $5 billion, the runway for scaled, specialized providers is substantial.²

Integra: A Compliance-Driven Platform of Scale

“Best-in-class TAB and CE businesses like Integra operate at the intersection of regulatory compliance and mission-critical facility performance,” notes Semple.

Integra is the largest nationally scaled, independent provider of TAB and CE certification in the U.S., a one-stop platform in a market where most providers are small, regional, or local operators. Its work determines whether hospitals can admit patients, pharmaceutical manufacturers can begin production, and data centers can come online. “In many cases, a customer’s facility can’t generate revenue until Integra’s work is complete and properly documented,” says Lucas.

Scale is central to Integra’s advantage. By building and maintaining a large pool of credentialed technicians—supported by proprietary in-house training facilities and curriculum—the company can serve customers across geographies, respond to urgent project requirements, and support large, multi-site enterprises. In a market where specialized labor is a key constraint, that workforce depth is difficult to replicate, and a differentiated, high-touch service culture turns it into loyal customers and strong technician retention.

Integra’s end-market mix is also tilting toward the highest-growth categories, with deepening exposure to data centers and life sciences. As data center construction accelerates and cooling architectures grow more complex, Integra is well positioned to capture rising, recurring demand for the testing and certification those facilities require. “The combination of fragmentation, growing demand, and rising technical complexity will keep creating attractive opportunities for scaled providers like Integra,” adds Semple.

Appetite That Drives Deals

Investors increasingly view compliance-driven testing and certification as resilient, recurring, and mission-critical. The strong interest in Integra was a direct result of those attributes: recurring regulatory demand, scarce credentialed labor, a proven consolidation engine, and deepening exposure to appealing end markets such as data centers and life sciences.

“The recurring, regulatory-driven nature of this work, paired with a highly fragmented supplier base, is precisely what’s drawing investors to TAB and CE,” notes Lucas. “And that interest is being reinforced by accelerating demand across resilient, high-growth end markets, none more so than data centers.” As regulatory requirements expand and facilities grow more complex, we expect that appetite, and the pace of consolidation, to continue.

“Organizations across healthcare, life sciences, data centers, government, and education will keep needing specialized testing and certification to stay operational and compliant,” says Lucas. “We look forward to watching companies like Integra continue to grow and attract strong investor interest.”

To further discuss M&A potential in TAB, CE, and the broader testing, inspection, certification, and compliance sector, please contact our senior professionals.

1. OC&C Industry Study for Harris Williams

2. OC&C Industry Study for Harris Williams