NDT Inspection Firms Industry Statistics 2026
Compiled 2026-10-06 from 309 indexed and 265 verified provider records. Every figure on this page is free to cite with a link to this URL.
Key figures
- 265 verified providers
- 42 states covered, 140 cities
- 4.4 average rating across 194 public reviews
- 37.3 years average experience (n=144)
Providers by state
| State | Providers |
|---|---|
| CA | 26 |
| TX | 20 |
| PA | 16 |
| NC | 14 |
| CO | 13 |
| AZ | 12 |
| LA | 12 |
| WA | 12 |
| MA | 11 |
| MI | 11 |
Most common certifications
- ISO 9001:2015 — 14 providers
- ASNT Level III — 12 providers
- SNT-TC-1A — 9 providers
- AWS CWI — 8 providers
- API 510 — 6 providers
- API 570 — 6 providers
- API 653 — 6 providers
- API 653 Aboveground Storage Tank Inspection Certification — 6 providers
Most offered services
- ultrasonic testing — 139 providers
- magnetic particle testing — 138 providers
- liquid penetrant testing — 101 providers
- visual testing — 68 providers
- radiographic testing — 64 providers
- non-destructive testing — 64 providers
- phased array ultrasonic testing — 44 providers
- eddy current testing — 43 providers
Methodology
Verified providers: listing has verified_at set by manual or source verification. Indexed providers: all listings scraped from public sources, deduplicated. Sources: directory listings data, public reviews, sentiment analysis. Compiled by NDT Inspection Firms. Cite any figure with a link to this page.