The Industrial Inspection Boom Reshaping NDT and Calibration

Industrial inspection has moved from a fragmented local-services category to an institutional asset class. A practical 2025 baseline already suggests roughly $29B+ of combined annual spend when you stack one major NDT estimate (about $22.9B) with one calibration-services estimate (about $6.5B), even before adjusting for category overlap and scope differences.

Market Growth Is Real, but Definitions Differ

Depending on where you draw category boundaries, the growth profile changes but stays strong. Grand View Research estimates NDT at $21.28B in 2024, rising to $45.97B by 2033 (9.2% CAGR). Mordor Intelligence puts NDT at $22.86B in 2025 and $33.78B by 2031 (6.72% CAGR). MarketsandMarkets projects NDT and inspection at $22.34B by 2030 at an 8.3% CAGR.

Calibration Adds Another Layer of Consolidatable Revenue

Calibration is also expanding, with different analysts landing in different bands because they scope the market differently. MarketsandMarkets estimates calibration services at $5.7B in 2023 growing to $8.1B by 2030, while IMARC places the market at $6.5B in 2025 and $9.4B by 2034.

The Acuren-to-TIC Arc Changed the Competitive Bar

The defining scale play started when Admiral completed the ASP Acuren acquisition on July 30, 2024 for approximately $1.88B in cash (SEC prospectus). Acuren's merger materials later disclosed 2024 combined revenue of $1.097B and combined adjusted EBITDA of $186.7M (~17.0% margin) (SEC joint press release exhibit). Acuren and NV5 announced their merger in May 2025 around a $2B combined-revenue profile, and the deal closed on August 4, 2025 (SEC joint press release exhibit, closing 8-K). As of 2026, the combined platform now presents itself as TIC Solutions, reporting more than 11,000 employees across 250+ locations (investor overview).

Strategic Buyers Are Paying for Technology-Heavy NDT

In February 2026, ESAB signed to acquire Eddyfi Technologies for $1.45B, with Eddyfi expected to generate about $270M of 2026 revenue and $80M of adjusted EBITDA (ESAB release). That followed Previan's June 2025 split of Eddyfi and NDT Global into independent entities (Previan release) and NDT Global's July 2025 Entegra acquisition for UHR MFL capability (GlobeNewswire).

Calibration Consolidation Is Moving at the Same Time

Transcat reported fiscal 2025 revenue of $278.4M (+7.3%), and its quarterly service gross margin reached 36.2% in Q4 (Transcat 10-K). It also acquired Martin Calibration in December 2024 (announced purchase price $79M) and acquired Essco in August 2025 for $84M cash (Martin release, Essco 8-K).

Global Calibration Platforms Keep Compounding

Trescal reports calibration operations in 30 countries, more than 6,000 employees, and 3.3 million operations per year (company profile). Its company news feed also states it announced 14 acquisitions in January 2026 as part of continued global expansion (Trescal news). SIMCO continues to position around software-led calibration operations, citing service relationships with 16 of the top 20 biomedical device manufacturers and 14 of the top 20 aerospace and defense manufacturers (SIMCO overview).

Mistras Shows How Margin Expansion Can Outrun Revenue Growth

MISTRAS posted 2024 revenue of $729.6M (+3.4%), net income of $19.0M (+208.6%), adjusted EBITDA of $82.5M (+25.3%), and free cash flow of $27.1M (+775.9%), while SG&A fell 6.2% and aerospace and defense revenue rose 13.0% to $87.0M (MISTRAS results). The takeaway is that mix shift plus operating discipline is now creating real earnings torque in this category.

AI and Software Are Rewriting the Service Model

The market is still predominantly conventional today, but the growth delta is in digital methods. Mordor estimates traditional techniques held 87.95% share in 2025, while AI-enabled techniques grow fastest at 14.38% CAGR through 2031 (Mordor NDT market). In parallel, Mordor estimates dedicated NDT software scaling from $690M in 2025 to $1.36B by 2031 at 12.03% CAGR (Mordor NDT software). That shift matters because software-heavy workflows drive stickier, recurring economics than one-off project execution.

End-Market Mix Is Broadening

Oil and gas remains a large demand center, but concentration is easing as other verticals expand. Mordor estimates oil and gas at 25.50% share in 2025, North America as the largest region at 36.30%, and Asia-Pacific as the fastest-growing region at 7.61% CAGR (Mordor NDT market). That combination is exactly what consolidators want: mission-critical demand with improving diversification.

The Talent Constraint Is Still the Strategic Risk

The labor issue is no longer anecdotal. The ASNT Foundation has now formalized paid workforce research focused on practitioner demographics, hiring, and compensation trends in U.S. NDT (ASNT Foundation workforce research). In adjacent inspection occupations, the U.S. Bureau of Labor Statistics also continues to show high replacement demand from retirements and exits, reinforcing the pressure on training and retention pipelines (BLS inspectors outlook).

What the Next 24 Months Likely Bring

Expect three parallel moves: continued M&A among regional service providers, more strategic bids for software-led and sensor-rich inspection assets, and deeper integration of calibration and NDT offerings under single enterprise contracts. The winning platforms will be the ones that combine certified labor depth, proprietary data systems, and global accreditation coverage into one operating model.

Bottom Line

The industrial inspection story is no longer just steady end-market growth. It is a structural transition from fragmented service delivery to scaled, tech-enabled TIC platforms where valuation is increasingly tied to recurring data workflows, cross-service density, and talent concentration.