Company lists · Data refreshed September 2026

Top 25 Rail ultrasonic testing companies based in the United States

RevenueBase identified 94 company matches for rail ultrasonic testing companies associated with the United States as of September 2026 and tracks 2,357 professional contacts across them, including 763 with verified work emails. Houston is the largest hub.

This list covers company matches for rail ultrasonic testing companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built
94Companies
2,357Contacts tracked
763Verified emails
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The 25 largest rail ultrasonic testing companies based in the United States

Ranked by team size
Top 25 of 94 company matches for rail ultrasonic testing companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchShelton, CT, United StatesHQ recorded Sep 17, 2026501-1,000412 contacts →

Exact match

“For nearly a century, Sperry Rail has been a pioneering force in advancing Rail Health®, ensuring the safety, reliability, and integrity of global rail infrastructure.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2Exact matchGray, LA, United StatesHQ recorded Sep 17, 2026201-500340 contacts →

Exact match

“NVI is a provider of industrial NDT solutions catering to companies with critical infrastructure needs.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3Exact matchPasadena, TX, United StatesHQ recorded Sep 17, 2026501-1,000226 contacts →

Exact match

“The TechCorr name is synonymous with safe, quality inspection services.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4Exact matchKaty, TX, United StatesHQ recorded Sep 17, 2026201-500163 contacts →

Exact match

“UTQuality is a global industrial engineering company specializing in groundbreaking non-destructive testing services.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5Exact matchSnoqualmie, WA, United StatesHQ recorded Sep 17, 202651-200146 contacts →

Exact match

“ZETEC is a global leader in nondestructive testing (NDT) solutions for the critical inspection needs of industries the world counts on, including - Power Generation - Oil and Gas…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6Exact matchGlenview, IL, United StatesHQ recorded Sep 17, 2026201-500115 contacts →

Exact match

“Magnaflux is a global leader in nondestructive testing solutions.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7Exact matchElmsford, NY, United StatesHQ recorded Sep 17, 202651-20096 contacts →

Exact match

“Magnetic Analysis Corporation has over 95 years of experience as a leader in non-destructive testing.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8Exact matchScott, LA, United StatesHQ recorded Sep 17, 2026201-50088 contacts →

Exact match

“About: National Inspection Services is a full service Nondestructive Testing (NDT) company.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9Exact matchNew Mexico, TX, United StatesHQ recorded Sep 17, 2026201-50066 contacts →

Exact match

“Pipeline inspection division of Legacy Safety & Consulting LLC.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10Exact matchGeorgetown, TX, United StatesHQ recorded Sep 17, 2026501-1,00062 contacts →

Exact match

“Previously known as Georgetown Rail Equipment Company (GREX), Loram Technologies provides innovative solutions in track inspection, friction management, ballast profiling, and…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11Exact matchOrange, CA, United StatesHQ recorded Sep 17, 202611-5037 contacts →

Exact match

“Zephyr Rail provides engineering services to support a variety of rail clients.* Track Design * Civil Engineering * Grade Crossing Design/PUC Permitting * Quiet Zones * 3rd Party…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12Exact matchWoburn, MA, United StatesHQ recorded Sep 17, 202611-5027 contacts →

Exact match

“Infrasense is a client-focused consulting firm that specializes in the non-destructive evaluation (NDE) of bridge decks, highway and airfield pavements, utilities, tunnels…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13Exact matchGreeley, CO, United StatesHQ recorded Sep 17, 202611-5022 contacts →

Exact match

“TRISPEC, LLC is an NDT company based out of Greeley, CO specializing in Ultrasonics and conventional inspection methods.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14Exact matchPlantersville, TX, United StatesHQ recorded Sep 17, 202651-20021 contacts →

Exact match

“Clint Knight started Knights Inspection Services in May of 2009 working out of his home in Conroe TX.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15Exact matchManassas, VA, United StatesHQ recorded Sep 17, 202611-5020 contacts →

Exact match

“Acquired by PVA TePla AG, Germany, in Nov 2020 OKOS, a subsidiary of PVA TePla AG, Germany, is a leader in providing Nondestructive Testing Solutions in the Ultrasound Immersion…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16Exact matchNorthborough, MA, United StatesHQ recorded Sep 17, 202651-20018 contacts →

Exact match

“Matec is a leading manufacturer of ultrasonic imaging systems and equipment used by some of the most well-know aerospace, military, railroad and metals companies in the world.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17Exact matchNashua, NH, United StatesHQ recorded Sep 17, 202611-5016 contacts →

Exact match

“For more than 40 years, NDT Systems Inc.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18Exact matchSanger, TX, United StatesHQ recorded Sep 17, 202611-5016 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19Exact matchDallas, TX, United StatesHQ recorded Sep 17, 202651-20015 contacts →

Exact match

“Since being founded in 1964, Bonded Inspections has become one of the leading Non Destructive Testing Companies in Texas and Oklahoma.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20Exact matchWest Columbia, SC, United StatesHQ recorded Sep 17, 202611-5015 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21Exact matchGenesee, PA, United StatesHQ recorded Sep 17, 202611-5015 contacts →

Exact match

“U.S.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Sep 17, 202611-5014 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23Exact matchLafayette, LA, United StatesHQ recorded Sep 17, 20261-1014 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24Exact matchMesa, AZ, United StatesHQ recorded Sep 17, 202611-5012 contacts →

Exact match

“Founded in 1995, Advanced Material Solutions (AMS) specializes in safe, high-speed, high-volume detection of structural flaws within manufacturing components and equipment to…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25Exact matchState College, PA, United StatesHQ recorded Sep 17, 202611-5011 contacts →

Exact match

“TechKnowServ offers traditional nondestructive testing and advanced long range ultrasound and acoustic emission inspection products and services for the railroad, petrochemical…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

Showing 25 of 94 rail ultrasonic testing companies based in the United States

See the full list, filter by size, metro and specialty, and access 763 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Rail ultrasonic testing companies based in the United States at a glance

As of Sep 17, 2026
32.4%Verified-email coverage
25.1Average contacts per company
11-50Median size (employees)
4.3%Largest-city concentration · Houston
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
40
51-200
11
201-500
7
501-1,000
4
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 94 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “rail ultrasonic testing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 763 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “rail ultrasonic testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many rail ultrasonic testing companies are there based in the United States?

RevenueBase identified 94 company matches for rail ultrasonic testing companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Sperry Rail INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most rail ultrasonic testing companies?

Houston leads with 4 company records, followed by Broussard (3) and Conroe (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 763 professional contacts with verified work emails tracked across these 94 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.