Company lists · Data refreshed September 2026

Top 25 Structural engineering staffing based in Türkiye

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

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 424 companies tracked

RevenueBase identified 424 structural engineering staffing headquartered in Türkiye as of September 2026 and tracks 4,741 professional contacts across them, including 518 with verified work emails. Istanbul is the largest hub.

This list covers structural engineering staffing 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 14, 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 14, 2026 86% judged on-target in blind review

424Companies

4,741Contacts tracked

518Verified emails

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The 25 largest structural engineering staffing based in Türkiye

Ranked by team size

Top 25 of 424 structural engineering staffing based in Türkiye, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to structural engineering staffing: 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	Mapa Group	Partial evidence	Ankara, TürkiyeHQ checked Sep 14, 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 14, 2026
2	Iris Construction	Indirect evidence	Kucukcekmece, TürkiyeHQ checked Sep 14, 2026	1,001-5,000	341 contacts →
	Indirect evidence “IRIS AS headquartered in Istanbul.” Source: RevenueBase Database · checked Sep 14, 2026
3	Tekfen Engineering	Partial evidence	Sisli, TürkiyeHQ checked Sep 14, 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 14, 2026
4	Koltek Consulting CO	Partial evidence	Ankara, TürkiyeHQ checked Sep 14, 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 14, 2026
5	Kasktaş	Indirect evidence	Beşiktaş, TürkiyeHQ checked Sep 14, 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 14, 2026
6	Prota Engineering	Partial evidence	Ankara, TürkiyeHQ checked Sep 14, 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 14, 2026
7	Mega Engineering Consulting	Partial evidence	Umitkoy, TürkiyeHQ checked Sep 14, 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 14, 2026
8	İksa Mühendislik	Partial evidence	Ankara, TürkiyeHQ checked Sep 14, 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 14, 2026
9	Atak Engineering	Partial evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	501-1,000	75 contacts →
	Partial evidence “Atak Engineering was founded in 1988.” Source: RevenueBase Database · checked Sep 14, 2026
10	Zemin Etüd VE Tasarım A.Ş	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 14, 2026	51-200	52 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
11	EFK Engineering	Partial evidence	Çankaya, TürkiyeHQ checked Sep 14, 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 14, 2026
12	Perform Mühendi̇sli̇k	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 14, 2026	51-200	36 contacts →
	Indirect evidence “HİZMET ALANLARIMIZ YÜKSEK YAPILAR ENDÜSTRİ VE ENERJİ TESİSLERİ TOPLU KONUTLAR HASTANELER TURİSTİK TESİSLER ve AVM'ler DEPREM GÜVENLİK ANALİZLERİ KENTSEL DÖNÜŞÜM PROJELERİ DİĞER…” Source: RevenueBase Database · checked Sep 14, 2026
13	AGM Mühendislik	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	31 contacts →
	Indirect evidence “AGM Mühendislik 1993 yılında Ankara'da kurulmuştur.” Source: RevenueBase Database · checked Sep 14, 2026
14	TEM Engineering & Consulting	Strong evidence	Istanbul, TürkiyeHQ checked Sep 14, 2026	11-50	24 contacts →
	Strong evidence “TEM is a consulting engineering company providing civil, structural engineering, architectural design, infrastructural engineering, mechanical engineering, electrical engineering…” Source: RevenueBase Database · checked Sep 14, 2026
15	Erdemli Proje VE Müşavirlik	Strong evidence	Akaretler, TürkiyeHQ checked Sep 14, 2026	11-50	24 contacts →
	Strong evidence “Erdemli Engineering and Consulting has a vivid experience of 50 years in the field of civil-structural design and is one of the pioneering Consulting – Engineering companies of…” Source: RevenueBase Database · checked Sep 14, 2026
16	Yapi Tekni̇k Proje Müşavi̇rli̇k VE Mühendi̇sli̇k	Partial evidence	Fikirtepe, TürkiyeHQ checked Sep 14, 2026	11-50	23 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 14, 2026
17	Infocus HR	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 14, 2026	11-50	22 contacts →
	Indirect evidence “BT ve Non-BT alanında uzman, gelişime açık ve aidiyeti yüksek personel kadrosuyla yurtiçi ve yurtdışı projelerinde “Dış Kaynak (Outstaffing) Personel Kiralama Hizmeti ya da İç…” Source: RevenueBase Database · checked Sep 14, 2026
18	Promota Mühendi̇sli̇k VE Müşavi̇rli̇k AŞ	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	21 contacts →
	Indirect evidence “PROMOTA her biri kendi alanında 20 yıl üzerinde mühendislik tasarımları, müşavirlik ve inşaat yönetimi alanlarında gösterdiği performans ve geliştirdiği projeler ile uzmanlaşmış…” Source: RevenueBase Database · checked Sep 14, 2026
19	Probe Engineering Architecture & Consultancy	Indirect evidence	Çankaya, TürkiyeHQ checked Sep 14, 2026	11-50	20 contacts →
	Indirect evidence “Kurulduğu 2008 yılından bugüne, kamu ve özel sektörden müşterilerine özellikle endüstriyel tesis ve prefabrik yapı projelendirme konusunda kapsamlı mühendislik hizmetleri veren…” Source: RevenueBase Database · checked Sep 14, 2026
20	Büro Statik Mühendislik İnşaat San. VE Tic. Ltd. ŞTI	Indirect evidence	Beşiktaş, TürkiyeHQ checked Sep 14, 2026	11-50	18 contacts →
	Indirect evidence “Büro Statik Mühendislik İnşaat San.” Source: RevenueBase Database · checked Sep 14, 2026
21	Modern Mühendislik	Strong evidence	İstanbul, TürkiyeHQ checked Sep 14, 2026	11-50	17 contacts →
	Strong evidence “Modern Muhendislik was established in 2005 by Galip Topönder, who has 25 years of experience in Civil & Structural Engineering.” Source: RevenueBase Database · checked Sep 14, 2026
22	Con-Ak Post Tension	Strong evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	51-200	17 contacts →
	Strong evidence “Post-Tensioning, Cable Stays, Bridges, Buildings, Structure, Tanks, Silos, Engineering, Construction, Consulting” Source: RevenueBase Database · checked Sep 14, 2026
23	Orient Research Consulting Engineers	Partial evidence	Istanbul, TürkiyeHQ checked Sep 14, 2026	11-50	16 contacts →
	Partial evidence “Orient Research Group aims to provide solutions across a wide spectrum of engineering needs.” Source: RevenueBase Database · checked Sep 14, 2026
24	PROBI	Strong evidence	Besiktas, TürkiyeHQ checked Sep 14, 2026	11-50	16 contacts →
	Strong evidence “Probi is a structural engineering and design consultancy based in İstanbul, founded in 1984 by Fikret Berker.” Source: RevenueBase Database · checked Sep 14, 2026
25	Endeco Engineering Design Consultancy	Partial evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	16 contacts →
	Partial evidence “ENDECO is an engineering, design and consultancy company which was established in 2003.” Source: RevenueBase Database · checked Sep 14, 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: structural engineering staffing. 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 structural engineering staffing.
Partial evidence: Its own public description names part of structural engineering staffing, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name structural engineering staffing. 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 424 structural engineering staffing based in Türkiye

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Structural engineering staffing based in Türkiye at a glance

As of Sep 14, 2026

10.9%Verified-email coverage

11.2Average contacts per company

1-10Median size (employees)

18.2%Largest-city concentration · Istanbul

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

253

11-50

118

51-200

201-500

501-1,000

1,001-5,000

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 424 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 engineering staffing, 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 engineering staffing”. 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 engineering staffing), 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 engineering staffing, 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, 518 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 14, 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 engineering staffing by metro

Structural engineering staffing in Istanbul77
Structural engineering staffing in Ankara57

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 engineering staffing, 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 engineering staffing are there based in Türkiye?

RevenueBase identified 424 structural engineering staffing 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?

Mapa Group, headquartered in Ankara, tops this list with the largest team on record.

Which city has the most structural engineering staffing?

Istanbul leads with 77 headquartered companies, followed by Ankara (57) and Cankaya (24).

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 518 verified decision-maker contacts tracked across these 424 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 14, 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.