Company lists · Data refreshed September 2026

Top 25 Infrastructure engineering staffing companies based in Türkiye

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 555 companies tracked

RevenueBase identified 555 infrastructure engineering staffing companies headquartered in Türkiye as of September 2026 and tracks 12,807 professional contacts across them, including 954 with verified work emails. Ankara is the largest hub.

This list covers infrastructure engineering staffing 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 28, 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 28, 2026 86% judged on-target in blind review

555Companies

12,807Contacts tracked

954Verified emails

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The 25 largest infrastructure engineering staffing companies based in Türkiye

Ranked by team size

Top 25 of 555 infrastructure engineering staffing companies based in Türkiye, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure engineering staffing 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	Yapı Merkezi	Indirect evidence	TürkiyeHQ checked Sep 28, 2026	10001+	2,852 contacts →
	Indirect evidence “Yapı Merkezi, founded in 1965, aims "to create and to realize construction projects that will serve humanity by creating environments of happiness".” Source: RevenueBase Database · checked Sep 28, 2026
2	Mapa Group	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	10001+	959 contacts →
	Partial evidence “Mapa Group has emerged as a global leader in the engineering and construction industry, now spanning three continents.” Source: RevenueBase Database · checked Sep 28, 2026
3	Renaissance Construction	Indirect evidence	Çankaya / Ankara, TürkiyeHQ checked Sep 28, 2026	5,001-10,000	818 contacts →
	Indirect evidence “Renaissance Construction was founded in St.” Source: RevenueBase Database · checked Sep 28, 2026
4	Fernas Construction Company INC	Indirect evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	5,001-10,000	475 contacts →
	Indirect evidence “Fernas is a Turkey based company currentlyFounded in 1982, Fernas Construction is the Group's locomotive company.” Source: RevenueBase Database · checked Sep 28, 2026
5	Iris Construction	Indirect evidence	Kucukcekmece, TürkiyeHQ checked Sep 28, 2026	1,001-5,000	341 contacts →
	Indirect evidence “IRIS AS headquartered in Istanbul.” Source: RevenueBase Database · checked Sep 28, 2026
6	Prokon Mühendislik VE Müşavirlik A.Ş	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	201-500	340 contacts →
	Partial evidence “Expertise in Design, Engineering & Consultancy” PROKON Engineering & Consultancy Inc.” Source: RevenueBase Database · checked Sep 28, 2026
7	Ekon Industry Construction & Trade INC	Strong evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	5,001-10,000	312 contacts →
	Strong evidence “EKON is a leading engineering & construction company for establishing infrastructure and integrated industrial projects from the planning and design stages, through engineering…” Source: RevenueBase Database · checked Sep 28, 2026
8	Tekfen Engineering	Partial evidence	Sisli, TürkiyeHQ checked Sep 28, 2026	201-500	293 contacts →
	Partial evidence “Tekfen Engineering was founded in 1984 to provide engineering services for our parent company, Tekfen Construction.” Source: RevenueBase Database · checked Sep 28, 2026
9	Koltek Consulting CO	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	501-1,000	253 contacts →
	Partial evidence “Established in 1988, KOLTEK is a technical consulting firm that offers multidisciplinary engineering services locally and abroad.” Source: RevenueBase Database · checked Sep 28, 2026
10	Temelsu International Engineering Services INC	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	201-500	188 contacts →
	Partial evidence “TEMELSU is a well known Turkish consulting engineering company which provides multidisciplinary engineering services, locally and internationally, since its foundation in 1969.” Source: RevenueBase Database · checked Sep 28, 2026
11	Berksan Engineering And Construction INC	Partial evidence	Uskudar, TürkiyeHQ checked Sep 28, 2026	501-1,000	178 contacts →
	Partial evidence “Berksan was established in 1998 to provide engineering and construction services for national and international projects.” Source: RevenueBase Database · checked Sep 28, 2026
12	Eltemtek A.Ş	Indirect evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	501-1,000	177 contacts →
	Indirect evidence “ELTEMTEK A.Ş olarak temel mühendislik hizmetlerinden, yatırım danışmanlığına; işletme hizmetlerine, sistem analiz etütlerine, harita ve kamulaştırma hizmetlerine uzanan geniş bir…” Source: RevenueBase Database · checked Sep 28, 2026
13	Kasktaş	Indirect evidence	Beşiktaş, TürkiyeHQ checked Sep 28, 2026	201-500	167 contacts →
	Indirect evidence “KASKTAŞ’ın doğuşu, 1957 yılında kurulan ve günümüzde dünyanın en büyük taahhüt firmaları arasında yer alan ENKA İnşaat ve Sanayi A.Ş.’ye dayanmaktadır.” Source: RevenueBase Database · checked Sep 28, 2026
14	Prota Engineering	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	201-500	164 contacts →
	Partial evidence “Founded in 1985, Prota Engineering is a pioneering design firm with a global footprint, having executed over projects spanning across 25 countries, having offices in Turkey…” Source: RevenueBase Database · checked Sep 28, 2026
15	Dolsar Engineering Inc. CO	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	201-500	164 contacts →
	Partial evidence “Founded in 1971, DOLSAR is a multi-disciplinary engineering firm offering engineering, architectural, consultancy and supervision services for large-scale projects in a wide range…” Source: RevenueBase Database · checked Sep 28, 2026
16	Mega Engineering Consulting	Partial evidence	Umitkoy, TürkiyeHQ checked Sep 28, 2026	201-500	119 contacts →
	Partial evidence “MEGA Engineering Consulting Inc, established in 1993, is a multidisciplinary firm that provides engineering, design, construction supervision and project management services for a…” Source: RevenueBase Database · checked Sep 28, 2026
17	İksa Mühendislik	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	501-1,000	118 contacts →
	Partial evidence “IKSA Engineering Consultancy Construction Industry and Trade Inc; with its expert technical staff, numerous technological machinery and successfully concluded domestic and foreign…” Source: RevenueBase Database · checked Sep 28, 2026
18	Sargin İnşaat VE Maki̇ne Sanayi̇ Ti̇caret A.Ş	Indirect evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	1,001-5,000	99 contacts →
	Indirect evidence “We are a Turkish Construction Company that specialises in Tunnelling, Mining and other associated underground works.” Source: RevenueBase Database · checked Sep 28, 2026
19	Trakkom Engineering & Industries	Partial evidence	Maltepe, TürkiyeHQ checked Sep 28, 2026	51-200	83 contacts →
	Partial evidence “With over 15 years of experience in mechanized tunneling and heavy machinery & equipment, Trakkom Engineering offers sustainable global solutions for the partners all over the…” Source: RevenueBase Database · checked Sep 28, 2026
20	Stadia Engineering	Partial evidence	Çankaya, TürkiyeHQ checked Sep 28, 2026	51-200	77 contacts →
	Partial evidence “Stadia Engineering and Consultancy was established in 2018.” Source: RevenueBase Database · checked Sep 28, 2026
21	BCT Construction Architecture Engineering Consultancy Incorporated Company	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	51-200	74 contacts →
	Partial evidence “Founded in 2004, BCT Architecture Engineering Consulting Company has established its local offices in different regions of Turkey in order to keep up with the demand from…” Source: RevenueBase Database · checked Sep 28, 2026
22	Biltek Construction International Company	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	501-1,000	65 contacts →
	Partial evidence “Biltek provides a portfolio of engineering and management services to public and private sectors worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
23	Zemin Etüd VE Tasarım A.Ş	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	52 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
24	EFK Engineering	Partial evidence	Çankaya, TürkiyeHQ checked Sep 28, 2026	51-200	44 contacts →
	Partial evidence “EFK Engineering is an engineering and design company established in 2004 in Ankara, Turkey.” Source: RevenueBase Database · checked Sep 28, 2026
25	Hesatekni̇k	Indirect evidence	İzmir, TürkiyeHQ checked Sep 28, 2026	11-50	43 contacts →
	Indirect evidence “HESATEKNİK dönemin gelişmiş ve verimli teknoloji altyapılarını kullanarak, geleceğin endüstriyel ve enerji üretim tesislerini müşterilerine anahtar teslimi sunmayı, kesintisiz…” Source: RevenueBase Database · checked Sep 28, 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: infrastructure engineering staffing 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 infrastructure engineering staffing companies.
Partial evidence: Its own public description names part of infrastructure engineering staffing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure engineering staffing 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 555 infrastructure engineering staffing companies based in Türkiye

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Infrastructure engineering staffing companies based in Türkiye at a glance

As of Sep 28, 2026

7.4%Verified-email coverage

23.1Average contacts per company

11-50Median size (employees)

20.0%Largest-city concentration · Ankara

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

219

11-50

191

51-200

201-500

501-1,000

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 555 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 infrastructure engineering staffing 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 “infrastructure engineering staffing 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 infrastructure engineering staffing 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 infrastructure engineering staffing 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, 954 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 28, 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.

Infrastructure engineering staffing companies by metro

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 infrastructure engineering staffing 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 infrastructure engineering staffing companies are there based in Türkiye?

RevenueBase identified 555 infrastructure engineering staffing 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?

Yapı Merkezi, headquartered in Türkiye, tops this list with the largest team on record.

Which city has the most infrastructure engineering staffing companies?

Ankara leads with 111 headquartered companies, followed by Istanbul (105) and Cankaya (56).

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 954 verified decision-maker contacts tracked across these 555 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 28, 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.