Company lists · Data refreshed November 2026

Top 25 Engineering companies based in Türkiye

Name: Engineering companies based in Türkiye
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 6,604 companies tracked

This directory lists 6,604 engineering companies based in Türkiye, with 107,463 contacts and 18,967 email addresses. The list includes companies across engineering disciplines, and Istanbul is the single most-represented city among the companies on the list. Use it to identify potential suppliers, partners, and sales prospects as of November 2026.

Engineering companies apply scientific, mathematical, and technical principles to design, develop, test, and manage products, systems, structures, or industrial processes. This list covers companies that provide engineering design, consulting, testing, project management, or related technical services. Ranked by team size, largest first. Data current as of November 6, 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 Nov 6, 2026 86% judged on-target in blind review

6,604Companies

107,463Contacts tracked

18,967Verified emails

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The 25 largest engineering companies based in Türkiye

Ranked by team size

Top 25 of 6,604 engineering companies based in Türkiye, ranked by team size, largest first. Data refreshed Nov 6, 2026. RevenueBase Smart Search rates how each company's information relates to engineering 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Enka İnşaat VE Sanayi A.Ş	Indirect evidence	Istanbul, TürkiyeHQ checked Nov 6, 2026	10001+	5,999 contacts →
	Indirect evidence “Founded in 1957, ENKA is Türkiye’s largest construction company and has maintained its place among ENR’s Top International Contractors since 1981.” Source: RevenueBase Database · checked Nov 6, 2026
2	Tp-Otc	Strong evidence	Çankaya, TürkiyeHQ checked Nov 6, 2026	501-1,000	1,813 contacts →
	Strong evidence “TP-OTC is established to provide all engineering and technology services for offshore operations in oil and gas industry.” Source: RevenueBase Database · checked Nov 6, 2026
3	Çalık Enerji	Indirect evidence	İstanbul, TürkiyeHQ checked Nov 6, 2026	10001+	1,804 contacts →
	Indirect evidence “Founded in 1998, Çalık Enerji is a leading international energy company with a strong track record in delivering integrated, turn-key contracting projects across Europe, Central…” Source: RevenueBase Database · checked Nov 6, 2026
4	Doğuş İnşaat VE Ti̇caret A.Ş	Indirect evidence	Istanbul, TürkiyeHQ checked Nov 6, 2026	10001+	1,710 contacts →
	Indirect evidence “Doğuş Construction and Trade Inc.” Source: RevenueBase Database · checked Nov 6, 2026
5	Ronesans Endustri Tesisleri	Indirect evidence	Istanbul, TürkiyeHQ checked Nov 6, 2026	10001+	1,510 contacts →
	Indirect evidence “Rönesans Endüstri Tesisleri specializes in construction services and EPC in Hydrocarbons, Power, Metallurgy & Mining and Process Plants sectors.” Source: RevenueBase Database · checked Nov 6, 2026
6	Mapa Group	Strong evidence	Ankara, TürkiyeHQ checked Nov 6, 2026	10001+	1,130 contacts →
	Strong evidence “Mapa Group has emerged as a global leader in the engineering and construction industry, now spanning three continents.” Source: RevenueBase Database · checked Nov 6, 2026
7	Mi̇tas Group	Indirect evidence	Yenimahalle, TürkiyeHQ checked Nov 6, 2026	1,001-5,000	1,067 contacts →
	Indirect evidence “MİTAŞ Endüstri Sanayi ve Ticaret A.Ş, MİTAŞ Grubu’nun ana kuruluşu olup köklerini 1955’te Ankara’da kurulan MİTAŞ Madeni İnşaat İşleri Türk A.Ş.’den almaktadır.” Source: RevenueBase Database · checked Nov 6, 2026
8	Gama Holding	Indirect evidence	Ankara, TürkiyeHQ checked Nov 6, 2026	10001+	1,005 contacts →
	Indirect evidence “GAMA HOLDING A.Ş.” Source: RevenueBase Database · checked Nov 6, 2026
9	Anel Group	Indirect evidence	İstanbul, TürkiyeHQ checked Nov 6, 2026	1,001-5,000	937 contacts →
	Indirect evidence “Founded by Rıdvan Çelikel in 1986, Anel is a global contracting company with its expertise in MEP systems in large scale and challenging projects.” Source: RevenueBase Database · checked Nov 6, 2026
10	Stfa Construction Group	Indirect evidence	Istanbul, TürkiyeHQ checked Nov 6, 2026	10001+	819 contacts →
	Indirect evidence Source: RevenueBase Database · checked Nov 6, 2026
11	Tcdd Teknik Mühendislik VE Müşavirlik A.Ş	Strong evidence	Ankara, TürkiyeHQ checked Nov 6, 2026	501-1,000	783 contacts →
	Strong evidence “TCDD Teknik is an engineering company managed with 100% public capital.” Source: RevenueBase Database · checked Nov 6, 2026
12	Makyol İnşaat Sanayi Turizm VE Ticaret A.Ş	Indirect evidence	Istanbul, TürkiyeHQ checked Nov 6, 2026	1,001-5,000	753 contacts →
	Indirect evidence “Rightfully regarded as one of Turkey's leading contractor firms, Makyol is active in the areas of: • Heavy construction & infrastructure (highways, airports, dams, tunnels…” Source: RevenueBase Database · checked Nov 6, 2026
13	GAP Construction	Indirect evidence	İstanbul, TürkiyeHQ checked Nov 6, 2026	5,001-10,000	717 contacts →
	Indirect evidence “146 SUCCESSFULLY COMPLETED PROJECTS ON 3 CONTINENTS, 8,56 BILLION USD CONTRACT VALUE, RANKING IN ENR’S “TOP CONTRACTORS LEAGUE” SINCE 2006 One of the highly reputable contracting…” Source: RevenueBase Database · checked Nov 6, 2026
14	Yamata Yatırım İnşaat Turizm VE Ticaret A.Ş	Indirect evidence	Istanbul, TürkiyeHQ checked Nov 6, 2026	1,001-5,000	634 contacts →
	Indirect evidence “Founded in Yamata Investment made a distinguished name in the international area with the construction activities all over the world.” Source: RevenueBase Database · checked Nov 6, 2026
15	Çimtaş Group	Strong evidence	Bursa, TürkiyeHQ checked Nov 6, 2026	1,001-5,000	633 contacts →
	Strong evidence “ÇİMTAŞ GROUP, a subsidiary of ENKA, having 52 years of experience and 5 subsidiaries with an aggregated annual capacity of ton, provides engineering, procurement, fabrication…” Source: RevenueBase Database · checked Nov 6, 2026
16	Nurol Construction And Trading Co. INC	Indirect evidence	Istanbul, TürkiyeHQ checked Nov 6, 2026	5,001-10,000	573 contacts →
	Indirect evidence “NUROL CONSTRUCTION AND TRADING CO.” Source: RevenueBase Database · checked Nov 6, 2026
17	Güri̇ş Holdi̇ng	Indirect evidence	Ankara, TürkiyeHQ checked Nov 6, 2026	5,001-10,000	550 contacts →
	Indirect evidence “Güriş İnşaat ve Mühendislik A.Ş.(Guris Construction ) is one of the leading construction groups from Turkey since 1958.” Source: RevenueBase Database · checked Nov 6, 2026
18	Summa Turizm Yatırımcılığı A.Ş	Indirect evidence	Sariyer, TürkiyeHQ checked Nov 6, 2026	5,001-10,000	488 contacts →
	Indirect evidence “Summa is established to undertake all kinds of turn-key construction projects, such as public buildings and housing projects, business and shopping centres, hotels, hospitals…” Source: RevenueBase Database · checked Nov 6, 2026
19	FEV Türkiye	Strong evidence	Istanbul, TürkiyeHQ checked Nov 6, 2026	201-500	428 contacts →
	Strong evidence “FEV Türkiye, which provides turnkey engineering solutions in the automotive industry, on vehicle development, software, autonomous driving, electric and conventional propulsion…” Source: RevenueBase Database · checked Nov 6, 2026
20	Prokon Mühendislik VE Müşavirlik A.Ş	Strong evidence	Ankara, TürkiyeHQ checked Nov 6, 2026	201-500	411 contacts →
	Strong evidence “Expertise in Design, Engineering & Consultancy” PROKON Engineering & Consultancy Inc.” Source: RevenueBase Database · checked Nov 6, 2026
21	NKY Architects And Engineers	Indirect evidence	Çankaya, TürkiyeHQ checked Nov 6, 2026	501-1,000	404 contacts →
	Indirect evidence “NKY is a project management and design company specialising in hospitals and educational facilities with the whole 360-degree range of professional services required to complete a…” Source: RevenueBase Database · checked Nov 6, 2026
22	Dorce Prefabricated Building And Construction Industry Trade INC	Indirect evidence	Ankara, TürkiyeHQ checked Nov 6, 2026	1,001-5,000	387 contacts →
	Indirect evidence “DORCE Inc.” Source: RevenueBase Database · checked Nov 6, 2026
23	Iris Construction	Indirect evidence	Kucukcekmece, TürkiyeHQ checked Nov 6, 2026	1,001-5,000	374 contacts →
	Indirect evidence “IRIS AS headquartered in Istanbul.” Source: RevenueBase Database · checked Nov 6, 2026
24	Teknokon Grup	Strong evidence	Istanbul, TürkiyeHQ checked Nov 6, 2026	1,001-5,000	369 contacts →
	Strong evidence “Headquartered in Istanbul / Turkey, Teknokon Group is a multi-disciplinary organization serving its clientele with a full range of engineering, procurement and construction for…” Source: RevenueBase Database · checked Nov 6, 2026
25	Fernas Construction Company INC	Indirect evidence	Ankara, TürkiyeHQ checked Nov 6, 2026	5,001-10,000	368 contacts →
	Indirect evidence “Fernas is a Turkey based company currentlyFounded in 1982, Fernas Construction is the Group's locomotive company.” Source: RevenueBase Database · checked Nov 6, 2026

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: engineering companies. 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 engineering companies.
Partial evidence: Its own public description names part of engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering companies. 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 6,604 engineering companies based in Türkiye

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Engineering companies based in Türkiye at a glance

As of Nov 6, 2026

17.6%Verified-email coverage

16.3Average contacts per company

11-50Median size (employees)

18.5%Largest-city concentration · Istanbul

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,857

11-50

2,260

51-200

908

201-500

352

501-1,000

110

1,001-5,000

5,001-10,000

10001+

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 6,604 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 engineering 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 “engineering 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 engineering 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 engineering 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, 18,967 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 November 6, 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.

Engineering companies by metro

Frequently asked

How many engineering companies are based in Türkiye?

The directory lists 6,604 engineering companies based in Türkiye as of November 2026.

What services do engineering companies provide?

Engineering companies provide services such as design, consulting, testing, project management, and technical support across disciplines and industries.

How can I find contacts at engineering companies?

This directory includes 107,463 contacts and 18,967 email addresses associated with engineering companies.

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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.