Company lists · Data refreshed September 2026
Top 25 Seamless tube mills worldwide
RevenueBase identified 2,097 seamless tube mills worldwide as of September 2026 and tracks 45,582 professional contacts across them, including 8,954 with verified work emails. India is the largest market and Mumbai the largest hub.
This list covers seamless tube mills 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 seamless tube mills 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 seamless tube mills worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,709 contacts → | ||||
Indirect evidence “Alleima is a global manufacturer of high value-added products in advanced stainless steels and special alloys as well as solutions for industrial heating.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,307 contacts → | ||||
Indirect evidence “A Vallourec está entre os líderes mundiais em soluções tubulares premium, atendendo aos mercados de petróleo e gás, geração de energia e indústria.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,041 contacts → | ||||
Partial evidence “APL APOLLO TUBES LIMITED (NSE: APLAPOLLO) is the largest producer of Structural steel tubes in India, with a capacity of 2.6 million tons per annum.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,012 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 851 contacts → | ||||
Indirect evidence “At Zekelman Industries, we trace our legacy of delivering successful solutions back to 1877.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 624 contacts → | ||||
Partial evidence “We are leaders in manufacturing carbon steel tubes and components.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 624 contacts → | ||||
Indirect evidence “En Grupo Ferromax nos especializamos en la fabricación de productos del acero para la industria de la construcción y metal mecánica.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 599 contacts → | ||||
Indirect evidence “Webco is a leading manufacturer and distributor of steel tubing.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 543 contacts → | ||||
Partial evidence “We are a globally operating trading company specialized in steel pipes, and pipe and tube applications.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 542 contacts → | ||||
Indirect evidence “ТМК is a global manufacturer and supplier of steel pipe, tubular solutions and related services for the oil and gas industry.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 458 contacts → | ||||
Strong evidence “ArcelorMittal Tubular Products Al-Jubail crafts premium seamless tubes that power the energy sector and global industries.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 409 contacts → | ||||
Indirect evidence “High Quality Pipe for Oil and Gas” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 383 contacts → | ||||
Partial evidence “Plymouth Tube Co.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 380 contacts → | ||||
Indirect evidence “Estabelecida no Rio Grande do Sul desde 1952, a Metalúrgica Fallgatter Ltda.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 379 contacts → | ||||
Strong evidence “Integrated Stainless Steel mill producing SS Long Products, SS Forged Flanges, SS Seamless tubes & Pipes and SS wire Rods with production capacity metric tons per year and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 353 contacts → | ||||
Indirect evidence “A TUBERFIL teve início em 1966 com a comercialização de Tubos de Aço e em 1988 passou a produzir seus próprios produtos com excelência de qualidade em Indaiatuba, interior de São…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 352 contacts → | ||||
Indirect evidence “A Açotel é uma indústria de transformação e beneficiamento do aço que está há mais de 50 anos no mercado produzindo um amplo mix de produtos, utilizando insumos provenientes das…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 334 contacts → | ||||
Partial evidence “Tubos Reunidos Group is Global Leader in niche segments of Premium Seamless Steel Tubular Products.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 331 contacts → | ||||
Indirect evidence “Con una capacità produttiva di di tonnellate d'acciaio all’anno, Acciaierie Venete è oggi uno dei maggiori e più qualificati produttori di Engineering Steel nel mercato europeo…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 323 contacts → | ||||
Indirect evidence “Fundada en 1961, hoy PEASA es líder en Norte América en procesos de tubos estirados en frío para aplicaciones de alta especificación en la Industria Automotriz.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 309 contacts → | ||||
Indirect evidence “With over 135 years of experience, Acciai Speciali Terni (Arvedi AST), part of the Arvedi Group, is one of the most important integrated steelmaking sites in Europe in the…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 282 contacts → | ||||
Indirect evidence “PTC is a leading manufacturer and marketer of steel tubing, pipe and bar products for the agriculture, automotive, construction, recreation and energy industries.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 263 contacts → | ||||
Indirect evidence “Seit vielen Jahren bürgt der Name Saarstahl für hochwertige, kundenspezifische Lösungen aus Stahl.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 262 contacts → | ||||
Partial evidence “Venus Pipes and Tubes Limited is an endeavor of farsighted entrepreneurs with immense academic background and exhaustive real-industry experience established it in 2015.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 240 contacts → | ||||
Partial evidence “Founded in 1962, Bull Moose Tube boasts more than a half-century of proven experience providing customers with superior steel pipe and tube.” 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: seamless tube mills. 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 seamless tube mills.
- Partial evidence
- Its own public description names part of seamless tube mills, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name seamless tube mills. 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 2,097 seamless tube mills worldwide
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Seamless tube mills 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 seamless tube mills, 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 seamless tube mills are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “seamless tube mills”. 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 seamless tube mills), 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 seamless tube mills, 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, 8,954 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.
Seamless tube mills by location
11 lists · largest firstEvery Seamless tube mills list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Seamless tube mills based in India365
- Seamless tube mills based in the United States218
- Seamless tube mills based in Brazil154
- Seamless tube mills based in Italy128
- Seamless tube mills based in Germany102
- Seamless tube mills based in Türkiye65
- Seamless tube mills based in the United Kingdom58
- Seamless tube mills based in Spain44
- Seamless tube mills based in France41
- Seamless tube mills based in Mexico33
- Seamless tube mills based in the Netherlands25
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 seamless tube mills, 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 seamless tube mills are there worldwide?
RevenueBase identified 2,097 seamless tube mills 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?
Alleima, headquartered in Sandviken, tops this list with the largest team on record.
Which country has the most seamless tube mills?
India leads with 365 companies, followed by the United States (218) and Brazil (154). Every seamless tube mills list by country and city is linked on this page.
Which city has the most seamless tube mills?
Mumbai leads with 81 headquartered companies, followed by Ahmedabad (27) and Sao Paulo (20).
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 8,954 verified decision-maker contacts tracked across these 2,097 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.