Company lists · Data refreshed October 2026

Top 25 Commercial construction steel contractors based in Türkiye

Name: Commercial construction steel contractors based in Türkiye
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 10, 2026 446 companies tracked

RevenueBase identified 446 company matches for commercial construction steel contractors associated with Türkiye as of October 2026 and tracks 3,649 professional contacts across them, including 277 with verified work emails. Istanbul is the largest hub.

This list covers company matches for commercial construction steel contractors associated with Türkiye, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 10, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 10, 2026 How this list was built

446Companies

3,649Contacts tracked

277Verified emails

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The 25 largest commercial construction steel contractors based in Türkiye

Ranked by team size

Top 25 of 446 company matches for commercial construction steel contractors based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	APC Tasarım Yapı San. VE Tic. A.Ş	Exact match	Ankara, TürkiyeHQ recorded Oct 10, 2026	501-1,000	130 contacts →
	Exact match “APC, which is established in 2006, completed important projects in national and international area.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2	Yilgenci̇ TR	Exact match	Sakarya, TürkiyeHQ recorded Oct 10, 2026	201-500	127 contacts →
	Exact match “We specialise in steel trading and custom-welded fabrication of chassis, frames, and components for rail systems, trailers, construction equipment, and more.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3	Gulermak Steel Construction Ind. & Trade Co. INC	Exact match	Izmir, TürkiyeHQ recorded Oct 10, 2026	501-1,000	91 contacts →
	Exact match “GULERMAK Steel Construction Ind.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4	Atak Engineering	Exact match	Ankara, TürkiyeHQ recorded Oct 10, 2026	501-1,000	86 contacts →
	Exact match “Atak Engineering was founded in 1988.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	Arkitech Advanced Construction Technologies	Exact match	Ankara, TürkiyeHQ recorded Oct 10, 2026	51-200	51 contacts →
	Exact match “Arkitech Advanced Construction Technologies (Arkitech) has been developing light gauge steel framer machines and associated design and manufacturing software based on ten years of…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6	Çelikerler Çelik Konstrüksiyon İnşaat San. Tic. Ltd. ŞTI	Exact match	Merkez, TürkiyeHQ recorded Oct 10, 2026	51-200	48 contacts →
	Exact match “Bartın Kumluca’da 1844 yılında sıcak demircilik ile iş hayatına başlayan Çelikerler, 2003 yılında şirketleşerek ÇELİKERLER LTD.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	Apec Steel Construction	Exact match	Istanbul, TürkiyeHQ recorded Oct 10, 2026	201-500	45 contacts →
	Exact match “APEC Smart Steel Structures is a group of companies operating in the field of engineering, manufacturing, construction and real estate development.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	Rönesans Çelik	Exact match	Ankara, TürkiyeHQ recorded Oct 10, 2026	201-500	41 contacts →
	Exact match “Rönesans Steel Construction Industry & Trade Inc.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	Polarkon	Exact match	Çankaya, TürkiyeHQ recorded Oct 10, 2026	51-200	41 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10	Romon Group	Exact match	Kastamonu, TürkiyeHQ recorded Oct 10, 2026	201-500	41 contacts →
	Exact match “In addition to our core expertise in industrial piping construction, we offer our customers one-stop solutions in the areas of tanks and process equipment, structural steelwork…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11	IS Yapi	Exact match	Izmir, TürkiyeHQ recorded Oct 10, 2026	51-200	30 contacts →
	Exact match “We are specialized in steel structures and fixing systems in all kinds of steel.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	Setap Steel Construction Solutions	Exact match	34890 Pendik / İstanbul, TürkiyeHQ recorded Oct 10, 2026	51-200	30 contacts →
	Exact match “SETAP, with its experienced project team using international standards and its production infrastructure having latest technologies rarely found in Turkey, is offering turn-key…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	Erki̇n Çeli̇k Konstrüksi̇yon	Exact match	Pelitli, TürkiyeHQ recorded Oct 10, 2026	51-200	29 contacts →
	Exact match “Erkin Çelik Konstrüksiyon, yapısal çelik imalatı ve montajında mühendislik disiplini, kalite anlayışı ve güçlü üretim altyapısıyla yurt içi ve yurt dışı projelere hizmet…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14	Monosteel	Exact match	Sakarya, TürkiyeHQ recorded Oct 10, 2026	51-200	27 contacts →
	Exact match “Mono Steel is a Turkish manufacturing and construction company established in 2012.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15	Si̇stem İnşaat A.Ş	Exact match	Istanbul, TürkiyeHQ recorded Oct 10, 2026	201-500	24 contacts →
	Exact match “Sistem İnşaat founded in 2001 within Sistem Holding, started to work by building turnkey gas stations and industrial facilities.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16	Yapi Tekni̇k Proje Müşavi̇rli̇k VE Mühendi̇sli̇k	Exact match	Fikirtepe, TürkiyeHQ recorded Oct 10, 2026	11-50	23 contacts →
	Exact match “Yapı Teknik, established in Istanbul in 1988, specializes in the design and the construction management of all types of reinforced concrete, steel and timber structures.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17	Uslu ÇSM Demir Çelik	Exact match	Yıldırım, TürkiyeHQ recorded Oct 10, 2026	51-200	21 contacts →
	Exact match “Uslu Çelik Servis Merkezi yılların verdiği tecrübeyle kendini kanıtlamış, bireysel müşteri gereksinimlerini tam olarak anlama konusunda uzmandır.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	Saytekno Building Technologies Group	Exact match	Istanbul, TürkiyeHQ recorded Oct 10, 2026	11-50	19 contacts →
	Exact match “SAYTEKNO is a technological group founded in 1994 and working in the field of design, production and installation of architectural steel, freeform and art glass structures…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
19	Yiğitalp Grup	Exact match	İstanbul, TürkiyeHQ recorded Oct 10, 2026	51-200	18 contacts →
	Exact match “YİĞİTALP, özellikle endüstriyel binaları anahtar teslim veya alt yüklenicilik şeklinde inşa etmekte, aynı zamanda bu tip binaların her tür çatı ve cephe kaplamaları konusunda…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20	Ozok Steel	Exact match	Ankara, TürkiyeHQ recorded Oct 10, 2026	11-50	18 contacts →
	Exact match “Hafif Çelik Konstrüksiyon * Kişiye Özel Mimari Tasarım * Yenilikçi Çözümler İletişim: 03123958497 0554 537 60 63 0554 537 60 64 0554 537 60 65” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21	RYS Rota Construction Metal Building Systems	Exact match	Ankara, TürkiyeHQ recorded Oct 10, 2026	201-500	17 contacts →
	Exact match “We, who have spent many years as managers in the aluminum sector of construction, especially in the field of external facade covering, have been continuing our activities since…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22	Insteel Çelik VE Prefabrik Yapılar	Exact match	Kocaeli, TürkiyeHQ recorded Oct 10, 2026	51-200	17 contacts →
	Exact match “Insteel Çelik ve Prefabrik Yapılar leverages over 25 years of experience to deliver high-quality prefabricated buildings, containers and steel constructions for domestic and…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
23	Şirin İnşaat San. VE Tic. A.Ş	Exact match	Gaziantep, TürkiyeHQ recorded Oct 10, 2026	51-200	15 contacts →
	Exact match “Firmamız 1998 yılından itibaren inşaat sektöründe faaliyet göstermeye başlayarak proje ve mühendislik alanlarında hizmet vermiştir.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
24	Vermo Çelik	Exact match	İstanbul, TürkiyeHQ recorded Oct 10, 2026	11-50	12 contacts →
	Exact match “Vermo çelik, 15 yıllık asansör montaj tecrübesiyle girmiş olduğu çelik sektöründe kazanmış olduğu deneyimini asansör çeliği, yapı çeliği, dış cephe çeliği, merdiven, çatı vb.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
25	Karhas Metal Mühendislik	Exact match	Başakşehir, TürkiyeHQ recorded Oct 10, 2026	51-200	10 contacts →
	Exact match “Mekanik tesisat ve demir çelik sektöründe hizmet veren mühendislik ve müteahhitlik firmasıdır” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “commercial construction steel contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 446 commercial construction steel contractors based in Türkiye

See the full list, filter by size, metro and specialty, and access 277 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial construction steel contractors based in Türkiye at a glance

As of Oct 10, 2026

7.6%Verified-email coverage

8.2Average contacts per company

11-50Median size (employees)

13.9%Largest-city concentration · Istanbul

Oct 10, 2026Page data refreshed

Companies by employee count

1-10

111

11-50

173

51-200

106

201-500

501-1,000

1,001-5,000

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 446 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Türkiye whose business descriptions match “commercial construction steel contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 277 professional contacts with verified work emails across the full matched dataset. 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 October 10, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “commercial construction steel contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial construction steel contractors are there based in Türkiye?

RevenueBase identified 446 company matches for commercial construction steel contractors associated with Türkiye as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

APC Tasarım Yapı San. VE Tic. A.Ş tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most commercial construction steel contractors?

Istanbul leads with 62 company records, followed by Ankara (45) and Kocaeli (29).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 277 professional contacts with verified work emails tracked across these 446 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 10, 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 SmartSearch, 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.