Company lists · Data refreshed September 2026
Top 25 Welding contractors based in the United States
RevenueBase identified 3,719 welding contractors headquartered in the United States as of September 2026 and tracks 43,556 professional contacts across them, including 12,907 with verified work emails. Houston is the largest hub.
This list covers welding contractors headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest welding contractors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,456 contacts → | ||||
Partial evidence “Lincoln Electric is the world leader in arc welding, robotic welding systems, plasma and oxyfuel cutting equipment and brazing and soldering alloys.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,713 contacts → | ||||
Indirect evidence “Yates Construction is part of The Yates Companies, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 877 contacts → | ||||
Partial evidence “Repcon has earned a reputation for leading the industry in turnarounds, specialty welding, construction, pipe fabrication, and maintenance.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 579 contacts → | ||||
Partial evidence “Per Colorado State Law Our CO Plumbing Contractor License Our Master Plumbing License is MP.03001288.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 504 contacts → | ||||
Indirect evidence “Loenbro is a trusted, long-term construction lifecycle partner to thousands of customers across the U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 445 contacts → | ||||
Indirect evidence “As a member of the TriplePoint Family of Companies, ACI plays a vital role as part of TriplePoint's platform that is enabling what comes next all across the country.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 422 contacts → | ||||
Partial evidence “MTI combines friction welding technologies with designed automation to deliver the best welding equipment and friction welding services in the world.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 380 contacts → | ||||
Partial evidence “Greenberry Industrial is an award-winning, full-service industrial contractor and fabricator serving high-tech, oil & gas, petrochemical, pulp & paper, power & energy, renewable…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 329 contacts → | ||||
Indirect evidence “G.A.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 305 contacts → | ||||
Partial evidence “Founded in 1977 as The Roberts Company, Roberts has grown from a small contractor to a large full service constructor and fabricator.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 303 contacts → | ||||
Partial evidence “Gas and Supply is your one-stop shop for welding supplies, compressed gases, bulk gases, medical gases, safety supplies, and related services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 286 contacts → | ||||
Indirect evidence “Since 1962, our mission has always been to deliver unparalleled service to our clients.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 280 contacts → | ||||
Partial evidence “History A 40+ year history as a global leader specialty welding, weld overlay and repair technology services across the energy industry provides the foundation for WSI’s culture…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 277 contacts → | ||||
Indirect evidence “Banker Steel is a full-service structural steel fabricator that excels in safely and seamlessly building complex projects on time and on budget.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 270 contacts → | ||||
Partial evidence “Contractor for Life At GEM Inc, we’re experienced problem solvers with the insight, integrity and resources to see you through your toughest challenges.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 252 contacts → | ||||
Indirect evidence “RANDALL is a premier self-performing $100M+ subcontractor providing integrated Mechanical, Electrical, Plumbing, Fire Protection, Architectural Metals, and Offsite…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 250 contacts → | ||||
Partial evidence “Pipeliners 798 is a trade union that provides the highest quality of pipeline welders to contractors across country.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 239 contacts → | ||||
Partial evidence “Founded in 1996, Summit Industrial is a Specialty Mechanical Contractor that offers full-service engineering, design-assist and turnkey, direct hire construction services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 223 contacts → | ||||
Partial evidence “A trusted industrial contractor since 1974, we at Petrochem provide multi-craft services to industrial and commercial clients nationwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 217 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 212 contacts → | ||||
Indirect evidence “At Cooper Steel, our reputation is built on more than just our services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 193 contacts → | ||||
Indirect evidence “Gulf Island is a leading fabricator of complex steel structures and modules and provider of specialty services, including project management, hookup, commissioning, repair…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 189 contacts → | ||||
Indirect evidence “United Group Services (UGS) is dedicated to providing leading-edge industrial & mechanical contracting, including process & utility piping, sanitary tubing, insulation…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 174 contacts → | ||||
Partial evidence “Haun Welding Supply – Durable and Progressive Haun Welding Supply is a 4th generation business that services most of New York State, Vermont, Connecticut, New Hampshire and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 171 contacts → | ||||
Indirect evidence “RUS Industrial, formerly known as Rig-Up Services, is a turn-key provider of electrical, instrumentation and fabrication products & services for industrial, oilfield & energy…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: welding contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names welding contractors.
- Partial evidence
- Its own public description names part of welding contractors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name welding contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 3,719 welding contractors based in the United States
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Welding contractors based in the United States at a glance
As of Sep 19, 2026Companies by employee count
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 3,719 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among welding contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “welding contractors”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names welding contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among welding contractors, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 12,907 across the full list. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Welding contractors by metro
- Welding contractors in Houston76
- Welding contractors in Miami25
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names welding contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many welding contractors are there based in the United States?
RevenueBase identified 3,719 welding contractors headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Lincoln Electric, headquartered in Cleveland, tops this list with the largest team on record.
Which city has the most welding contractors?
Houston leads with 76 headquartered companies, followed by Miami (25) and Phoenix (24).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 12,907 verified decision-maker contacts tracked across these 3,719 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 Smart Search, 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.