Company lists · Data refreshed September 2026
Top 25 Heavy steel plate manufacturers worldwide
RevenueBase identified 2,141 heavy steel plate manufacturers worldwide as of September 2026 and tracks 48,237 professional contacts across them, including 8,808 with verified work emails. The United States is the largest market and Mumbai the largest hub.
This list covers heavy steel plate manufacturers 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 30, 2026. Country and city lists for heavy steel plate manufacturers 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 heavy steel plate manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,523 contacts → | ||||
Partial evidence “Former AK Steel is now Cleveland-Cliffs.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,974 contacts → | ||||
Indirect evidence “Erdemir, the main company of the OYAK Mining Metallurgy and one of the most valuable industrial assets of Turkey, was established in 1960 under a special law, in order to be the…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,948 contacts → | ||||
Partial evidence “thyssenkrupp Steel, based in Duisburg, is one of the leading flat carbon steel suppliers.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,523 contacts → | ||||
Partial evidence “ISDEMIR, Turkey's third largest integrated iron and steel factory in terms of date of establishment and the largest in terms of long products became Turkey's first integrated long…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,160 contacts → | ||||
Partial evidence “Saudi Iron and Steel Company (Hadeed) is the largest iron & steel producer in the Gulf Cooperation Council (GCC) region offering a wide range of high-quality long and flat steel…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,065 contacts → | ||||
Indirect evidence “Soluções Usiminas é uma empresa do Grupo Usiminas.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 948 contacts → | ||||
Indirect evidence “Jindal (India) Limited, a core member of the B.C.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 930 contacts → | ||||
Partial evidence “ezzsteel is the Middle East’s leading producer of high-quality long and flat steel for use in a wide range of end applications.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 826 contacts → | ||||
Partial evidence “Rashtriya Ispat Nigam Ltd, also known as Vizag Steel, is a Public steel producer based in Visakhapatnam, India” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 617 contacts → | ||||
Strong evidence “Europe's leading supplier of alloy or stainless steel plate, Industeel supplies a large number of specialized industries including the nuclear industry, the oil and gas sector and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 563 contacts → | ||||
Partial evidence “IDC Steel is one of the leading long steel producers in Turkey with 1,5 million tons crude steel capacity annually.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 488 contacts → | ||||
Indirect evidence “We’re hiring!” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 400 contacts → | ||||
Partial evidence “OJSC MMK is among the world's largest steel producers and is one of the leaders of Russia's steel industry.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 380 contacts → | ||||
Indirect evidence “Estabelecida no Rio Grande do Sul desde 1952, a Metalúrgica Fallgatter Ltda.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 372 contacts → | ||||
Indirect evidence “ArcelorMittal a son siège social au Luxembourg.” Source: RevenueBase Database · checked Sep 30, 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 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 352 contacts → | ||||
Partial evidence “NLMK USA produces at rolled steel that is essential to modern manufacturing.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 341 contacts → | ||||
Partial evidence “Operating in the steel profile segment of the iron and steel industry, Kocaer Steel is the export champion of the Aegean Region in the iron and steel industry with foreign…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 331 contacts → | ||||
Partial 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 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 319 contacts → | ||||
Partial evidence “DSD Ferrometalco was founded in 1979 by the German Ferrostaal and is considered one of the Largest Steel Manufacturing and Construction Company in the Middle East as it has a…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 317 contacts → | ||||
Indirect evidence “Tosyalı Demir Çelik Sarıseki Tesisi, metrekare alanda 4 milyon ton yassı çelik üretim kapasitesine sahiptir.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 314 contacts → | ||||
Indirect evidence “1966 yılında demir çelik ürünleri imalatı ve ticareti yapmak amacıyla kurulan Kroman Çelik Kroman Çelik, 1985 yılında Yücel Grup bünyesine katılmıştır.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 304 contacts → | ||||
Indirect evidence “Misión Fabricar y comercializar productos de acero de calidad, mediante abastecimiento de excelencia, asesoría especializada y asistencia tecnológica para satisfacer las…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 235 contacts → | ||||
Partial evidence “Sidenor is the largest steel industry in Greece and together with its subsidiaries and affiliated companies holds a leading position in Steel manufacturing across Southeastern…” Source: RevenueBase Database · checked Sep 30, 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: heavy steel plate manufacturers. 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 heavy steel plate manufacturers.
- Partial evidence
- Its own public description names part of heavy steel plate manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name heavy steel plate manufacturers. 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 2,141 heavy steel plate manufacturers worldwide
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Heavy steel plate manufacturers worldwide at a glance
As of Sep 30, 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 heavy steel plate manufacturers, 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 heavy steel plate manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “heavy steel plate manufacturers”. 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 heavy steel plate manufacturers), 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 heavy steel plate manufacturers, 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, 8,808 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 30, 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.
Heavy steel plate manufacturers by location
13 lists · largest firstEvery Heavy steel plate manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Heavy steel plate manufacturers based in the United States230
- Heavy steel plate manufacturers based in Brazil199
- Heavy steel plate manufacturers based in India189
- Heavy steel plate manufacturers based in Türkiye116
- Heavy steel plate manufacturers based in Germany110
- Heavy steel plate manufacturers based in Italy93
- Heavy steel plate manufacturers based in the Netherlands54
- Heavy steel plate manufacturers based in the United Kingdom47
- Heavy steel plate manufacturers based in Spain43
- Heavy steel plate manufacturers based in Poland41
- Heavy steel plate manufacturers based in Canada36
- Heavy steel plate manufacturers based in Australia26
Cities
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 heavy steel plate manufacturers, 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 heavy steel plate manufacturers are there worldwide?
RevenueBase identified 2,141 heavy steel plate manufacturers 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?
AK Steel Corporation, headquartered in Cleveland, tops this list with the largest team on record.
Which country has the most heavy steel plate manufacturers?
The United States leads with 230 companies, followed by Brazil (199) and India (189). Every heavy steel plate manufacturers list by country and city is linked on this page.
Which city has the most heavy steel plate manufacturers?
Mumbai leads with 45 headquartered companies, followed by Sao Paulo (16) and Houston (15).
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 8,808 verified decision-maker contacts tracked across these 2,141 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 30, 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.