Company lists · Data refreshed September 2026

Top 25 Steel mill construction companies based in Türkiye

RevenueBase identified 199 steel mill construction companies headquartered in Türkiye as of September 2026 and tracks 3,000 professional contacts across them, including 480 with verified work emails. Istanbul is the largest hub.

This list covers steel mill construction companies headquartered in Türkiye, 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 18, 2026.

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 18, 2026 86% judged on-target in blind review
199Companies
3,000Contacts tracked
480Verified emails
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The 25 largest steel mill construction companies based in Türkiye

Ranked by team size
Top 25 of 199 steel mill construction companies based in Türkiye, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to steel mill construction companies: 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
1Indirect evidenceKocaeli, TürkiyeHQ checked Sep 18, 20261,001-5,000314 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 18, 2026
2Indirect evidenceİzmit, TürkiyeHQ checked Sep 18, 2026501-1,000310 contacts →

Indirect evidence

“Yıldız Demir Çelik, Türkiye'de ve dünyada büyük yatırımlara imza atan Yıldızlar Yatırım Holding’in grup iştirakidir.”

Source: RevenueBase Database · checked Sep 18, 2026
3Indirect evidenceDenizli, TürkiyeHQ checked Sep 18, 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 18, 2026
4Strong evidenceIzmir, TürkiyeHQ checked Sep 18, 2026501-1,00091 contacts →

Strong evidence

“GULERMAK Steel Construction Ind.”

Source: RevenueBase Database · checked Sep 18, 2026
5Indirect evidenceAnkara, TürkiyeHQ checked Sep 18, 2026201-50082 contacts →

Indirect evidence

“PRIZMA started operations in Ankara-Turkey in 2001.”

Source: RevenueBase Database · checked Sep 18, 2026
6Indirect evidenceKocaeli, TürkiyeHQ checked Sep 18, 2026501-1,00081 contacts →

Indirect evidence

“GEMKOM is amongst the biggest engineering and manufacturing companies in Turkey rendering services at European standards.”

Source: RevenueBase Database · checked Sep 18, 2026
7Indirect evidenceAnkara, TürkiyeHQ checked Sep 18, 2026501-1,00075 contacts →

Indirect evidence

“Atak Engineering was founded in 1988.”

Source: RevenueBase Database · checked Sep 18, 2026
8Indirect evidenceMerkez, TürkiyeHQ checked Sep 18, 202651-20046 contacts →

Indirect evidence

“Bartın Kumluca’da 1844 yılında sıcak demircilik ile iş hayatına başlayan Çelikerler, 2003 yılında şirketleşerek ÇELİKERLER LTD.”

Source: RevenueBase Database · checked Sep 18, 2026
9Strong evidenceAnkara, TürkiyeHQ checked Sep 18, 2026201-50042 contacts →

Strong evidence

“Rönesans Steel Construction Industry & Trade Inc.”

Source: RevenueBase Database · checked Sep 18, 2026
10Partial evidenceÇankaya, TürkiyeHQ checked Sep 18, 202651-20040 contacts →

Partial evidence

“Founded in 1995 and headquartered in Ankara, Turkey, with global offices in Düsseldorf, Germany, and Chicago, Illinois, POLARKON is a leading "design-build" engineering and steel…”

Source: RevenueBase Database · checked Sep 18, 2026
11Strong evidenceSariçam, TürkiyeHQ checked Sep 18, 2026501-1,00037 contacts →

Strong evidence

“GERMAKSAN has proudly built over 40 steel plants worldwide and continues to be the Leading and Most Trusted Rolling Mill Plant Manufacturer.”

Source: RevenueBase Database · checked Sep 18, 2026
12Partial evidenceKocaeli, TürkiyeHQ checked Sep 18, 2026501-1,00037 contacts →

Partial evidence

“Nowadays, as an OEM company, CVS is one of the few reliable suppliers for modern and efficient iron & steel making plants worldwide.”

Source: RevenueBase Database · checked Sep 18, 2026
13Strong evidenceSakarya, TürkiyeHQ checked Sep 18, 202651-20028 contacts →

Strong evidence

“Mono Steel is a Turkish manufacturing and construction company established in 2012.”

Source: RevenueBase Database · checked Sep 18, 2026
14Indirect evidencePelitli, TürkiyeHQ checked Sep 18, 202651-20024 contacts →

Indirect evidence

“Erkin Çelik Konstrüksiyon, yapısal çelik imalatı ve montajında mühendislik disiplini, kalite anlayışı ve güçlü üretim altyapısıyla yurt içi ve yurt dışı projelere hizmet…”

Source: RevenueBase Database · checked Sep 18, 2026
15Indirect evidenceÇiğli, TürkiyeHQ checked Sep 18, 202651-20020 contacts →

Indirect evidence

“iw-steelTEC A.S.”

Source: RevenueBase Database · checked Sep 18, 2026
16Partial evidenceFenerbahçe/kadıköy, TürkiyeHQ checked Sep 18, 2026201-50020 contacts →

Partial evidence

“BLS Machine in Iron and Steel Industry with experience up to 30 years, design of many important plant at home and abroad, production, has carried out the installation and…”

Source: RevenueBase Database · checked Sep 18, 2026
17Indirect evidenceAdana, TürkiyeHQ checked Sep 18, 202651-20019 contacts →

Indirect evidence

“2012 yılında kurulan firmamız her türlü endüstriyel tesisler için mühendislik, imalat ve montaj alanlarında hizmet sunmaktadır.”

Source: RevenueBase Database · checked Sep 18, 2026
18Indirect evidenceİstanbul, TürkiyeHQ checked Sep 18, 202651-20017 contacts →

Indirect evidence

“3S Teknik Danışmanlık San.Tic.”

Source: RevenueBase Database · checked Sep 18, 2026
19Partial evidenceIzmir, TürkiyeHQ checked Sep 18, 202651-20017 contacts →

Partial evidence

“Having 30 years of experience in iron and steel industry, BEISCO CO.”

Source: RevenueBase Database · checked Sep 18, 2026
20Indirect evidenceİzmir, TürkiyeHQ checked Sep 18, 202651-20010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 18, 2026
21Strong evidenceŞekerpınar, TürkiyeHQ checked Sep 18, 2026201-5008 contacts →

Strong evidence

“Since 1986, the knowledge, experience and skill in the project, manufacturing and assembly processes of steel construction building systems, especially industrial facilities…”

Source: RevenueBase Database · checked Sep 18, 2026
22Indirect evidenceİstanbul, TürkiyeHQ checked Sep 18, 20261-102 contacts →

Indirect evidence

“Terna Teknik Danışmanlık Ltd.Şti.”

Source: RevenueBase Database · checked Sep 18, 2026
23Partial evidenceBaşakşehir, TürkiyeHQ checked Sep 18, 202651-2002 contacts →

Partial evidence

“Skycon Steel is a well-established company that has built the quality, modernity and reliability of its customers’ lives.”

Source: RevenueBase Database · checked Sep 18, 2026
24Indirect evidenceIstanbul, TürkiyeHQ checked Sep 18, 202611-502 contacts →

Indirect evidence

“Çelik konstrüksiyon imalat ve montajı”

Source: RevenueBase Database · checked Sep 18, 2026
25Partial evidenceİtob Osb, TürkiyeHQ checked Sep 18, 20261-102 contacts →

Partial evidence

“ADAPOL CONSTRUCTION COMPANY was established in 2009 by civil engineers serving this sector for 25 years.”

Source: RevenueBase Database · checked Sep 18, 2026

Showing 25 of 199 steel mill construction companies based in Türkiye

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Steel mill construction companies based in Türkiye at a glance

As of Sep 18, 2026
16.0%Verified-email coverage
15.1Average contacts per company
11-50Median size (employees)
11.6%Largest-city concentration · Istanbul
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
37
11-50
73
51-200
47
201-500
25
501-1,000
12
1,001-5,000
4

Email recency for this list is measured worldwide rather than for Türkiye, so it is reported there. Company counts and contact totals on this page are exact for Türkiye, over 199 companies.

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 steel mill construction companies, 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.
What qualifies
Companies headquartered in Türkiye whose own description of what they do matches “steel mill construction companies”. 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 steel mill construction companies), 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 steel mill construction companies, and records with no verified work email. Companies headquartered outside Türkiye are excluded even when they keep an office there.
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, 480 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 18, 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.

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 steel mill construction companies, 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 steel mill construction companies are there based in Türkiye?

RevenueBase identified 199 steel mill construction companies headquartered in Türkiye 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?

Kroman Çelik San. A.Ş, headquartered in Kocaeli, tops this list with the largest team on record.

Which city has the most steel mill construction companies?

Istanbul leads with 23 headquartered companies, followed by Kocaeli (21) and Ankara (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 480 verified decision-maker contacts tracked across these 199 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 18, 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.