Company lists · Data refreshed September 2026

Top 20 Structural welding companies based in Türkiye

RevenueBase identified 282 structural welding companies headquartered in Türkiye as of September 2026 and tracks 2,272 professional contacts across them, including 175 with verified work emails. Istanbul is the largest hub.

This list covers structural welding 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 22, 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 22, 2026 86% judged on-target in blind review
282Companies
2,272Contacts tracked
175Verified emails
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The 20 largest structural welding companies based in Türkiye

Ranked by team size
Top 20 of 282 structural welding companies based in Türkiye, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to structural welding 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 evidenceSakarya, TürkiyeHQ checked Sep 22, 2026201-500111 contacts →

Indirect evidence

“We specialise in steel trading and custom-welded fabrication of chassis, frames, and components for rail systems, trailers, construction equipment, and more.”

Source: RevenueBase Database · checked Sep 22, 2026
2Indirect evidenceIzmir, TürkiyeHQ checked Sep 22, 2026501-1,00091 contacts →

Indirect evidence

“GULERMAK Steel Construction Ind.”

Source: RevenueBase Database · checked Sep 22, 2026
3Indirect evidenceAnkara, TürkiyeHQ checked Sep 22, 2026501-1,00075 contacts →

Indirect evidence

“Atak Engineering was founded in 1988.”

Source: RevenueBase Database · checked Sep 22, 2026
4Indirect evidenceIstanbul, TürkiyeHQ checked Sep 22, 202651-20046 contacts →

Indirect evidence

“Kasso Mühendislik is a design, engineering and fabrication company specialized in metal sheet works located in Istanbul, Turkey.”

Source: RevenueBase Database · checked Sep 22, 2026
5Indirect evidenceAnkara, TürkiyeHQ checked Sep 22, 2026201-50042 contacts →

Indirect evidence

“Rönesans Steel Construction Industry & Trade Inc.”

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceÇankaya, TürkiyeHQ checked Sep 22, 202651-20040 contacts →

Indirect 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 22, 2026
7Partial evidenceKastamonu, TürkiyeHQ checked Sep 22, 2026201-50034 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 22, 2026
8Partial evidenceIzmir, TürkiyeHQ checked Sep 22, 202651-20029 contacts →

Partial evidence

“We are specialized in steel structures and fixing systems in all kinds of steel.”

Source: RevenueBase Database · checked Sep 22, 2026
9Indirect evidenceSakarya, TürkiyeHQ checked Sep 22, 202651-20028 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
10Partial evidenceEsentepe, TürkiyeHQ checked Sep 22, 202651-20027 contacts →

Partial evidence

“Founded in 1984, Aldem Çelik is a trusted manufacturer of welded and non-welded components made from carbon steel, stainless steel, aluminum, and structural steel.”

Source: RevenueBase Database · checked Sep 22, 2026
11Indirect evidencePelitli, TürkiyeHQ checked Sep 22, 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 22, 2026
12Partial evidenceIstanbul, TürkiyeHQ checked Sep 22, 202611-5019 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 22, 2026
13Indirect evidenceAkdeni̇z, TürkiyeHQ checked Sep 22, 202651-2005 contacts →

Indirect evidence

“1968 - 1982 Firma, Hasan Aytekin tarafından Mersin/Zeytinlibahçe Caddesinde kurulmuş olup, demir doğrama ve kaynak işleri yapan Aytekin Demir Doğrama atölyesi ile hizmete başladı.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceBursa, TürkiyeHQ checked Sep 22, 202611-505 contacts →

Indirect evidence

“Her türlü çelik konstrüksiyon imalat ve montajları Taşıma kasaları, Platform, Merdiven imalat ve montajları, Endüstriyel tesislerin Yangın Tesisatı, Hava Tesisatı ve Su…”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceİzmir, TürkiyeHQ checked Sep 22, 202611-505 contacts →

Partial evidence

“Alfapro was established 2018 in Izmir/Turkey to supply welded structures, custom made special machines, and machining works for the European customers.”

Source: RevenueBase Database · checked Sep 22, 2026
16Partial evidenceAnkara, TürkiyeHQ checked Sep 22, 202611-504 contacts →

Partial evidence

“Hammer Welding Makina Mühendislik Tic.”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceDilovası, TürkiyeHQ checked Sep 22, 202611-503 contacts →

Indirect evidence

“Metal fabrikasyon, lazer kesim, büküm, kaynak ve boyama hizmetleri.”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceIstanbul, TürkiyeHQ checked Sep 22, 202611-502 contacts →

Indirect evidence

“Çelik konstrüksiyon imalat ve montajı”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceİtob Osb, TürkiyeHQ checked Sep 22, 20261-102 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
20Partial evidenceGazi Osman Pasa Mah., TürkiyeHQ checked Sep 22, 20261-101 contacts →

Partial evidence

“Established in 2014, Bordo Steel Construction is focused on industrial construction projects that primarily involved fabrication and erection of structural steel, prefabricated…”

Source: RevenueBase Database · checked Sep 22, 2026

Showing 20 of 282 structural welding companies based in Türkiye

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Structural welding companies based in Türkiye at a glance

As of Sep 22, 2026
7.7%Verified-email coverage
8.1Average contacts per company
11-50Median size (employees)
12.8%Largest-city concentration · Istanbul
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
73
11-50
115
51-200
59
201-500
27
501-1,000
5
1,001-5,000
2

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 282 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 structural welding 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 “structural welding 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 structural welding 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 structural welding 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, 175 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 22, 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.

Structural welding companies by metro

  • Structural welding companies in Istanbul36
  • Structural welding companies in Ankara26

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 structural welding 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 structural welding companies are there based in Türkiye?

RevenueBase identified 282 structural welding 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?

Yilgenci̇ TR, headquartered in Sakarya, tops this list with the largest team on record.

Which city has the most structural welding companies?

Istanbul leads with 36 headquartered companies, followed by Ankara (26) and Izmir (18).

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 175 verified decision-maker contacts tracked across these 282 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 22, 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.