Company lists · Data refreshed September 2026

Top 25 Tmt bar manufacturers worldwide

RevenueBase identified 1,166 tmt bar manufacturers worldwide as of September 2026 and tracks 41,802 professional contacts across them, including 5,931 with verified work emails. India is the largest market and Kolkata the largest hub.

This list covers tmt bar 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 tmt bar 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review
1,166Companies
41,802Contacts tracked
5,931Verified emails
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The 25 largest tmt bar manufacturers worldwide

Ranked by team size
Top 25 of 1,166 tmt bar manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to tmt bar manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceTampa, FL, United StatesHQ checked Sep 30, 20265,001-10,0002,986 contacts →

Strong evidence

“In North America, Gerdau manufactures merchant bar, structural steel, piling, special bar quality and rebar products for the agricultural, automotive, civil construction…”

Source: RevenueBase Database · checked Sep 30, 2026
2Partial evidenceKolkata, IndiaHQ checked Sep 30, 20261,001-5,0002,156 contacts →

Partial evidence

“Established in 1953, Shyam Steel Industries Ltd, is one of the leading primary steel producers in India, manufacturing TMT Rebar and Structural steel.”

Source: RevenueBase Database · checked Sep 30, 2026
3Indirect evidenceCairo, EgyptHQ checked Sep 30, 20265,001-10,0001,218 contacts →

Indirect evidence

“AL EZZ Steel Rebars (ezzsteel) is the leading steel producer in the Middle East, with a growing presence in markets around the world.”

Source: RevenueBase Database · checked Sep 30, 2026
4Indirect evidenceNoida, IndiaHQ checked Sep 30, 20261,001-5,0001,041 contacts →

Indirect 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 30, 2026
5Indirect evidenceIstanbul, TürkiyeHQ checked Sep 30, 20261,001-5,000790 contacts →

Indirect evidence

“Çolakoğlu’s involvement in the iron and steel business began with the steel trade business that our founder Mehmet Rüştü Çolakoğlu started in Karaköy, İstanbul, in 1945.”

Source: RevenueBase Database · checked Sep 30, 2026
6Partial evidenceLahore, PakistanHQ checked Sep 30, 2026501-1,000714 contacts →

Partial evidence

“FF STEEL is the exclusive producer of Grade 60 and the sole producer of Grade 80 deformed steel bars according to international standards of ASTM 615 and ASTM 706.”

Source: RevenueBase Database · checked Sep 30, 2026
7Indirect evidenceKarachi, PakistanHQ checked Sep 30, 20261,001-5,000695 contacts →

Indirect evidence

“Amreli Steels is synonymous with “Pioneer” in the steel rebar industry of Pakistan.”

Source: RevenueBase Database · checked Sep 30, 2026
8Indirect evidenceSan Salvador, El SalvadorHQ checked Sep 30, 20261,001-5,000624 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, 2026
9Indirect evidenceMarabá, BrazilHQ checked Sep 30, 20261,001-5,000606 contacts →

Indirect evidence

“A Siderúrgica Norte Brasil S.A.”

Source: RevenueBase Database · checked Sep 30, 2026
10Indirect evidenceZwevezele, BelgiumHQ checked Sep 30, 20261,001-5,000483 contacts →

Indirect evidence

“With passion for our trade.”

Source: RevenueBase Database · checked Sep 30, 2026
11Indirect evidenceKolkata, IndiaHQ checked Sep 30, 20261,001-5,000461 contacts →

Indirect evidence

“Founded in 1951 by the late Shri Radha Kishan Beriwala, SRMB Group is a 75 plus year old steel and construction materials group built on a legacy of integrity, strength, and…”

Source: RevenueBase Database · checked Sep 30, 2026
12Indirect evidenceBelo Horizonte, BrazilHQ checked Sep 30, 202610001+455 contacts →

Indirect evidence

“Being the largest long and drawn steels in Brazil, we are enabled to offer the market the most complete portfolio of products and solutions for civil construction, industry and…”

Source: RevenueBase Database · checked Sep 30, 2026
13Indirect evidenceOsoppo, ItalyHQ checked Sep 30, 20261,001-5,000442 contacts →

Indirect evidence

“The Pittini Group, with its main headquarters in Osoppo (UD), is a leader in the production of long steel destined for the building sector and the mechanical industry.”

Source: RevenueBase Database · checked Sep 30, 2026
14Indirect evidenceLuxembourgHQ checked Sep 30, 20261,001-5,000372 contacts →

Indirect evidence

“ArcelorMittal a son siège social au Luxembourg.”

Source: RevenueBase Database · checked Sep 30, 2026
15Indirect evidenceSingaporeHQ checked Sep 30, 20261,001-5,000335 contacts →

Indirect evidence

“NatSteel Holdings is one of the leading Southeast Asian company that delivers premium reinforcement steel products and solutions for the construction industry.”

Source: RevenueBase Database · checked Sep 30, 2026
16Indirect evidence6th Of October, EgyptHQ checked Sep 30, 20261,001-5,000311 contacts →

Indirect evidence

“Established in 2006 in 6th of October city.”

Source: RevenueBase Database · checked Sep 30, 2026
17Indirect evidenceBaku, AzerbaijanHQ checked Sep 30, 20261,001-5,000310 contacts →

Indirect evidence

“A flagship of the modern metallurgy of Azerbaijan Republic Baku Steel Company CJSC is the first up-to-date steelworks in the Caucasus region.”

Source: RevenueBase Database · checked Sep 30, 2026
18Indirect evidenceDenizli, TürkiyeHQ checked Sep 30, 20261,001-5,000300 contacts →

Indirect evidence

“1968 yılında Denizli’deki ilk üretim tesisi ile sanayi yolculuğuna başlayan Kardemir Çelik, bugün 1350’nin üzerinde çalışanı, İzmir ve Denizli’de 7 adet üretim tesisi ve uzun…”

Source: RevenueBase Database · checked Sep 30, 2026
19Indirect evidenceKolkata, IndiaHQ checked Sep 30, 20261,001-5,000271 contacts →

Indirect evidence

“Maithan Steel stands for strength and innovation in the steel industry.”

Source: RevenueBase Database · checked Sep 30, 2026
20Indirect evidenceKuwait City Kuwait, KuwaitHQ checked Sep 30, 20261,001-5,000266 contacts →

Indirect evidence

“United Steel Industrial Company (Kuwait Steel) was established in 1996 by Kuwaiti investors.In the four years that followed Kuwait Steel in collaboration with VOEST Alpine of…”

Source: RevenueBase Database · checked Sep 30, 2026
21Indirect evidenceAthens, GreeceHQ checked Sep 30, 20261,001-5,000235 contacts →

Indirect 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, 2026
22Indirect evidenceVidor, TX, United StatesHQ checked Sep 30, 2026201-500233 contacts →

Indirect evidence

“Based in Beaumont, Texas, Optimus Steel is proud to produce wire rods, coiled rebars, straight rebars, and billets, serving industries across the construction, automotive…”

Source: RevenueBase Database · checked Sep 30, 2026
23Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 30, 2026501-1,000222 contacts →

Indirect evidence

“Arabian Gulf Steel Industries (AGSI) has been, in many ways, a forerunner in the region's steel manufacturing clime and is now standing tall as the largest steelmaking company in…”

Source: RevenueBase Database · checked Sep 30, 2026
24Indirect evidenceKarachi, PakistanHQ checked Sep 30, 2026501-1,000221 contacts →

Indirect evidence

“In line with its Vision of diversification and sustainable growth, Naveena Group decided to enter into the steel sector.”

Source: RevenueBase Database · checked Sep 30, 2026
25Indirect evidenceFortaleza, BrazilHQ checked Sep 30, 202651-200210 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 30, 2026

Showing 25 of 1,166 tmt bar manufacturers worldwide

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Tmt bar manufacturers worldwide at a glance

As of Sep 30, 2026
14.2%Verified-email coverage
35.9Average contacts per company
51-200Median size (employees)
3.4%Largest-city concentration · Kolkata
Sep 30, 2026Page data refreshed

Companies by employee count

1-10
225
11-50
280
51-200
288
201-500
150
501-1,000
114
1,001-5,000
77
5,001-10,000
10
10001+
10

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 tmt bar 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 tmt bar manufacturers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “tmt bar 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 tmt bar 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 tmt bar 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, 5,931 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.

Tmt bar manufacturers by location

6 lists · largest first

Every Tmt bar manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 tmt bar 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 tmt bar manufacturers are there worldwide?

RevenueBase identified 1,166 tmt bar 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 North America, headquartered in Tampa, tops this list with the largest team on record.

Which country has the most tmt bar manufacturers?

India leads with 395 companies, followed by Brazil (98) and Türkiye (38). Every tmt bar manufacturers list by country and city is linked on this page.

Which city has the most tmt bar manufacturers?

Kolkata leads with 40 headquartered companies, followed by Bangalore (26) and Chennai (23).

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 5,931 verified decision-maker contacts tracked across these 1,166 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.