Company lists · Data refreshed September 2026

Top 25 Rail flaw detection companies based in the United States

RevenueBase identified 60 company matches for rail flaw detection companies associated with the United States as of September 2026 and tracks 1,547 professional contacts across them, including 424 with verified work emails. Pasadena is the largest hub.

This list covers company matches for rail flaw detection 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
60Companies
1,547Contacts tracked
424Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest rail flaw detection companies based in the United States

Ranked by team size
Top 25 of 60 company matches for rail flaw detection 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 matchOak Creek, WI, United StatesHQ recorded Sep 17, 2026201-500229 contacts →

Exact match

“For 100 years, our company has provided the railroad industry with innovative products and services.”

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 matchPasadena, CA, United StatesHQ recorded Sep 17, 2026201-500186 contacts →

Exact match

“We're Harbor Rail Services, the industry leader in running freight car inspections and repair.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5Exact 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
6Exact matchFrankfort, IN, United StatesHQ recorded Sep 17, 202651-20041 contacts →

Exact match

“Ameritrack Rail is a one-stop full-service rail contractor providing engineering and design services, new track construction and existing track maintenance.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7Exact matchHauppauge, NY, United StatesHQ recorded Sep 17, 202611-5022 contacts →

Exact match

“KLD Labs, an ENSCO owned company, has extensive experience in the development and deployment of real-time measurement systems for railways worldwide and specializes in…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8Exact 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
9Exact matchBozeman, MT, United StatesHQ recorded Sep 17, 202651-20019 contacts →

Exact match

“With over 25 years of experience, DPS is uniquely positioned in the industry to provide technological solutions based on experience and industry leading products.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10Exact 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
11Exact 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
12Exact matchFallston, MD, United StatesHQ recorded Sep 17, 202651-20015 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13Exact 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
14Exact 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
15Exact matchMountainside, NJ, United StatesHQ recorded Sep 17, 202611-5011 contacts →

Exact match

“Tracks Unlimited is a full service railroad contracting company that designs, builds, maintains, and repairs railroads for transit companies, class 1 railroads, short lines and…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16Exact matchChattanooga, TN, United StatesHQ recorded Sep 17, 202611-5010 contacts →

Exact match

“Southern Technologies Corp is a railroad manufacture company based out of 6145 Preservation Dr, Chattanooga, Tennessee, United States.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17Exact matchRolling Meadows, IL, United StatesHQ recorded Sep 17, 202611-509 contacts →

Exact match

“Radiography -Computerized (CR) & Conventional Magnetic Particle Dye Penetrant Ultrasonic Inspection Visual Inspection / CWI Positive Material Identification (PMI) Carbon…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18Exact matchNorth Jackson, OH, United StatesHQ recorded Sep 17, 202611-509 contacts →

Exact match

“KRS management has over 90 years of knowledge, experience and expertise.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19Exact matchOdessa, TX, United StatesHQ recorded Sep 17, 202611-509 contacts →

Exact match

“Vanta NDT is a team of highly trained quality and customer service specialists, that performs NDT inspections.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20Exact matchCoral Gables, FL, United StatesHQ recorded Sep 17, 202611-508 contacts →

Exact match

“IntertechRail is a leading provider of technology solutions for the railway industry, including RFID systems (tags, readers, and software) for AEI (Automatic Equipment…”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21Exact matchSt. Louis, MO, United StatesHQ recorded Sep 17, 202611-508 contacts →

Exact match

“The world's first sensor combining predictive mechanical failure and location tracking for the rail industry.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22Exact matchPaulsboro, NJ, United StatesHQ recorded Sep 17, 202611-507 contacts →

Exact match

“Railroad Construction Co.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23Exact matchWaukegan, IL, United StatesHQ recorded Sep 17, 202611-507 contacts →

Exact match

“In 1904, when Aldon Company was established, our market was limited to the railroads, many of which were headquartered in Chicago.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24Exact matchChandler, AZ, United StatesHQ recorded Sep 17, 202611-506 contacts →

Exact match

“Code Steel Industrial Inspections is a versatile inspection company in Phoenix, AZ that concentrates on Tanks, Pressure Vessels, and Piping.”

Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25Exact matchTukwila, WA, United StatesHQ recorded Sep 17, 20261-106 contacts →

Exact match

“We are the Seattle nondestructive testing experts.”

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

Showing 25 of 60 rail flaw detection companies based in the United States

See the full list, filter by size, metro and specialty, and access 424 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Rail flaw detection companies based in the United States at a glance

As of Sep 17, 2026
27.4%Verified-email coverage
25.8Average contacts per company
11-50Median size (employees)
5.0%Largest-city concentration · Pasadena
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
24
51-200
9
201-500
2
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 60 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 flaw detection 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 424 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 flaw detection companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many rail flaw detection companies are there based in the United States?

RevenueBase identified 60 company matches for rail flaw detection 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 flaw detection companies?

Pasadena leads with 3 company records, followed by Broussard (2) and Houston (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 424 professional contacts with verified work emails tracked across these 60 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.

Ready to reach these companies? Verified emails and direct dials for all 60 rail flaw detection companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.