Company lists · Data refreshed September 2026
Top 25 Flat steel manufacturers worldwide
RevenueBase identified 4,327 flat steel manufacturers worldwide as of September 2026 and tracks 201,373 professional contacts across them, including 42,586 with verified work emails. The United States is the largest market and Mumbai the largest hub.
This list covers flat steel 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 flat steel 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 flat steel manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 17,896 contacts → | ||||
Partial evidence “With a history spanning 122 years, Gerdau is Brazil's largest steel producer, one of the leading producers of long steel in the Americas and of special steel in the world.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 9,692 contacts → | ||||
Partial evidence “Ternium (NYSE:TX) is the largest steel producer in Latin America.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 7,965 contacts → | ||||
Indirect evidence “A new brand; a new culture.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 6,657 contacts → | ||||
Partial evidence “AM/NS India is a joint venture between the world's leading steel companies, ArcelorMittal and Nippon Steel.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 4,299 contacts → | ||||
Partial evidence “With over 16,500 people across 14 countries, BlueScope is a leading international supplier of steel products and solutions for building and construction markets.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 4,174 contacts → | ||||
Partial evidence “Cleveland-Cliffs is a leading North America-based steel producer with focus on value-added sheet products, particularly for the automotive industry.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 2,991 contacts → | ||||
Indirect evidence “Deacero is strongly committed to a sustainable strategy of growth that benefits our company, the environment, our employees and the communities in which we operate.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 2,402 contacts → | ||||
Partial evidence “ArcelorMittal South Africa Limited is the largest steel producer on the African continent, with a production capacity of 7.8 million tonnes of liquid steel per annum.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 2,315 contacts → | ||||
Partial evidence “Steel Dynamics is one of the largest domestic steel producers and metals recyclers in the United States, based on estimated annual steelmaking and metals recycling capability…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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. | |||||
| 11 | 1,948 contacts → | ||||
Strong 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. | |||||
| 12 | 1,541 contacts → | ||||
Indirect evidence “Nacimos y nos desarrollamos creyendo y apostando por el Perú.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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. | |||||
| 14 | 1,346 contacts → | ||||
Indirect evidence “O Grupo Simec iniciou suas operações no setor siderúrgico em 1969, quando um grupo de famílias de Guadalajara, no México, fundou a Companhia Siderúrgica de Guadalajara S.A.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 1,172 contacts → | ||||
Partial evidence “Fondé en 1975, Maghreb Steel est l’unique producteur d’acier plat du Maroc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 1,160 contacts → | ||||
Strong 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. | |||||
| 17 | 1,154 contacts → | ||||
Partial evidence “CELSA™ is the largest Spanish-owned steel company and the second largest European long products producer.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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. | |||||
| 19 | 1,055 contacts → | ||||
Partial evidence “LIBERTY Steel Group is an international business with an integrated offering – from the production of liquid steel made from raw and recycled materials through to high value…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1,046 contacts → | ||||
Partial evidence “We produce high quality differentiated steel products for the construction, automotive, packaging and engineering markets While steel itself presents us with endless…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1,020 contacts → | ||||
Partial evidence “BSRM is the pioneer in Bangladesh’s steel industry, with a legacy spanning over seven decades.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 986 contacts → | ||||
Strong evidence “Columbus Stainless, founded in 1966, is South Africa’s and Africa’s only producer of stainless steel flat products.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 954 contacts → | ||||
Partial evidence “NLMK Group is a leading international steel company.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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. | |||||
| 25 | 930 contacts → | ||||
Strong 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. | |||||
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: flat steel 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 flat steel manufacturers.
- Partial evidence
- Its own public description names part of flat steel manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name flat steel 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 4,327 flat steel manufacturers worldwide
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Flat steel 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 flat steel 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 flat steel manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “flat steel 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 flat steel 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 flat steel 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, 42,586 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.
Flat steel manufacturers by location
18 lists · largest firstEvery Flat steel manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Flat steel manufacturers based in the United States566
- Flat steel manufacturers based in India428
- Flat steel manufacturers based in Brazil413
- Flat steel manufacturers based in Türkiye265
- Flat steel manufacturers based in Italy260
- Flat steel manufacturers based in Germany200
- Flat steel manufacturers based in Mexico89
- Flat steel manufacturers based in the United Kingdom84
- Flat steel manufacturers based in Canada75
- Flat steel manufacturers based in Spain74
- Flat steel manufacturers based in Poland63
- Flat steel manufacturers based in the Netherlands54
- Flat steel manufacturers based in France53
- Flat steel manufacturers based in Australia46
- Flat steel manufacturers based in South Africa36
- Flat steel manufacturers based in Belgium33
- Flat steel manufacturers based in the United Arab Emirates33
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 flat steel 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 flat steel manufacturers are there worldwide?
RevenueBase identified 4,327 flat steel 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?
Gerdau, headquartered in Sao Paulo, tops this list with the largest team on record.
Which country has the most flat steel manufacturers?
The United States leads with 566 companies, followed by India (428) and Brazil (413). Every flat steel manufacturers list by country and city is linked on this page.
Which city has the most flat steel manufacturers?
Mumbai leads with 54 headquartered companies, followed by Sao Paulo (35) and Istanbul (33).
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 42,586 verified decision-maker contacts tracked across these 4,327 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.