Company lists · Data refreshed September 2026
Top 25 Welding schools worldwide
RevenueBase identified 556 welding schools worldwide as of September 2026 and tracks 4,357 professional contacts across them, including 830 with verified work emails. The United States is the largest market and Virginia Beach the largest hub.
This list covers welding schools worldwide, 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 22, 2026. Country and city lists for welding schools follow the table.
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 schools worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 180 contacts → | ||||
Indirect evidence “Fanno parte di IIS l’Istituto Italiano della Saldatura - Ente Morale, con personalità giuridica di associazione senza scopo di lucro, e le controllate IIS CERT srl e IIS SERVICE…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 142 contacts → | ||||
Indirect evidence “Since 1969, MIAT College of Technology has helped thousands of individuals get the industry-relevant skills, experience and connections it takes to pursue rewarding technical…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 116 contacts → | ||||
Partial evidence “Hobart Institute of Welding Technology,(HIWT) dedicated to welding training and education excellence, is an accredited, nonprofit educational facility.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 112 contacts → | ||||
Indirect evidence “Founded in 2007, StrataTech Education Group is a national leader in specialized career education, dedicated to preparing students for high-demand skilled trade careers.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 110 contacts → | ||||
Strong evidence “Arclabs Welding School is a full-service training facility offering welder training, testing, and certification for either the novice welder or the welder with years of experience.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 99 contacts → | ||||
Partial evidence “Founded in 1949 by two welders who recognized the strong demand for skilled tradesmen in their industry, TWS is an educational institution that prepares students for welding…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 84 contacts → | ||||
Indirect evidence “Descon Technical Institute- skills for livelihood, is one of the leading Technical and Vocational training providing institutes in Lahore since 1998 as a company.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 84 contacts → | ||||
Partial evidence “JK Welding is a full service welding company offering custom fabrication, welding and metal repair to clients in Houston, San Antonio, Austin, Dallas, and the surrounding areas.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 82 contacts → | ||||
Indirect evidence “Oklahoma Technical College (OTC) is a nonprofit, career-focused college preparing students for meaningful careers in high-demand skilled trades and technical industries.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 72 contacts → | ||||
Partial evidence “North American Trade Schools (NATS) provides hands-on training for in-demand careers in the skilled trades - giving students the skills, and real-world experience needed to…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 59 contacts → | ||||
Partial evidence “In 1909, the Institut de Soudure became the first organisation to offer welding classes in France and has continued to extend its range of training options ever since.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 53 contacts → | ||||
Indirect evidence “Technology Training” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 51 contacts → | ||||
Partial evidence “Kampuh Welding Indonesia adalah lembaga pelatihan pengelasan terbaik dan terbesar di Indonesia dan Asia Tenggara yang berbasis di Surabaya dan sudah bersertifikat ISO 9001:2015.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 38 contacts → | ||||
Partial evidence “The Southern African Institute of Welding (SAIW) is a non-profit technical organisation dedicated to furthering standards in welding-fabrication and related technologies.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 38 contacts → | ||||
Partial evidence “Specialists in welding equipment, consumables, service, second hand and hire.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 38 contacts → | ||||
Partial evidence “Arizona Automotive Institute (AAI), located in Glendale, AZ, offers training programs in Automotive Service Technician, CDL Training: Class A Tractor Trailer, Combination Welding…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 34 contacts → | ||||
Strong evidence “Advanced Career Institute is a post-secondary education school for Welding Technology and CDL training.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 34 contacts → | ||||
Partial evidence “The GSI-Gesellschaft für Schweißtechnik International mbH (GSI mbH) was founded by the DVS - Deutscher Verband für Schweißen und verwandte Verfahren e.V.(German Welding Society)…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 33 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 27 contacts → | ||||
Partial evidence “Earlbeck Gases & Technologies is a distributor of gases and welding supplies to the mid-atlantic region.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 27 contacts → | ||||
Partial evidence “We are a leader in the welding industry with over 100 years of experience, more than 50 subsidiaries and more than distribution partners around the world.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 26 contacts → | ||||
Partial evidence “Hatek Lastechniek since 1972 a wholesaler, specialized in welding products.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 26 contacts → | ||||
Indirect evidence “Outsource Institute is Australia’s trusted provider of advanced trade training in metal and engineering specialties for the Mining, Defence, Manufacturing, and Engineering sectors.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 25 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 25 contacts → | ||||
Partial evidence “We are Canada's trusted source for welding equipment, supplies, apparel, accessories and more!” Source: RevenueBase Database · checked Sep 22, 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 schools. 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 schools.
- Partial evidence
- Its own public description names part of welding schools, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name welding schools. 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 556 welding schools worldwide
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Welding schools worldwide at a glance
As of Sep 22, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 schools, 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.
- Coverage
- Every country. Country and city lists for welding schools are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “welding schools”. 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 schools), 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 schools, and records with no verified work email.
- 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, 830 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 22, 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 schools by location
2 lists · largest firstEvery Welding schools list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 schools, 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 schools are there worldwide?
RevenueBase identified 556 welding schools worldwide 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?
IIS, headquartered in Genova, tops this list with the largest team on record.
Which country has the most welding schools?
The United States leads with 192 companies, followed by Germany (27). Every welding schools list by country and city is linked on this page.
Which city has the most welding schools?
Virginia Beach leads with 8 headquartered companies, followed by Houston (6) and Baltimore (3).
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 830 verified decision-maker contacts tracked across these 556 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 22, 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.