Company lists · Data refreshed September 2026
Top 25 Geotechnical construction firms based in Türkiye
RevenueBase identified 410 geotechnical construction firms headquartered in Türkiye as of September 2026 and tracks 3,441 professional contacts across them, including 185 with verified work emails. Istanbul is the largest hub.
This list covers geotechnical construction firms 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 16, 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.
The 25 largest geotechnical construction firms based in Türkiye
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 341 contacts → | ||||
Indirect evidence “IRIS AS headquartered in Istanbul.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 99 contacts → | ||||
Partial evidence “We are a Turkish Construction Company that specialises in Tunnelling, Mining and other associated underground works.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 83 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 75 contacts → | ||||
Indirect evidence “Atak Engineering was founded in 1988.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 72 contacts → | ||||
Partial evidence “AS TEKNOLOJIK Construction; together with its solution partners, is a full-service construction firm specialized in delivering turn-key design-build, new construction, renovation…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 52 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 44 contacts → | ||||
Indirect evidence “EFK Engineering is an engineering and design company established in 2004 in Ankara, Turkey.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 32 contacts → | ||||
Indirect evidence “GeoDestek Zemar Ltd.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 28 contacts → | ||||
Strong evidence “SONAR provides Geotechnical Construction and Engineering Services; such as Deep Excavation and Retaining Systems, Deep Foundations, Ground Improvement, Cut-Off Walls, and Ground…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 24 contacts → | ||||
Indirect 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 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 19 contacts → | ||||
Partial evidence “Teknofor was established in and specializes about geotechnical and started to post tensioning work since 2009.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 17 contacts → | ||||
Indirect evidence “25 yılı aşkın sektör deneyimimizle 2018 yılında kurulan firmamız, kuruluşundan günümüze kadar geçen zaman diliminde özellikle yol ve altyapı sektöründe faaliyet göstermiş ve her…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 14 contacts → | ||||
Indirect evidence “We Build Your Projects Safely with Aesthetic Engineering Solutions.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 13 contacts → | ||||
Indirect evidence “Bünyesinde jeoloji, maden ve çevre mühendisliğinin yanı sıra çeşitli disiplinlerden oluşan tecrübeli uzman kadrosu ile her geçen gün büyümeye devam eden FİDES MÜHENDİSLİK…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Indirect evidence “TR (EN & FR see below) Geomed yılından beri geoteknik mühendisliği uzmanlığı gerektiren işlerde müşterilerine hızlı, kaliteli ve yenilikçi çözümler sunan bir proje firmasıdır.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 contacts → | ||||
Indirect evidence “Deneyimli ve uzman kadrosuyla PROGEO Proje, Zemin ve Temel Mühendisliği (Geoteknik) alanlarında hizmet veren bir firmadır.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Indirect evidence “Our company has always targetted providing quality engineering services by following the latest technology with its knowledge and experience on Marine Structures for more than 30…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Partial evidence “Rota Construction, had been Established in 1991, Rota Construction has successfully completed many infrastructure projects in Turkey.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Indirect evidence “Şirket Profili Firmamız 1974 yılında babamız Yılmaz Altınkaya tarafından Yılmaz Hafriyat olarak Gebze'de kurulmuştur.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Indirect evidence “Piling & Ground Improvement Equipment Providers” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 contacts → | ||||
Indirect evidence “2014 yılında kurulan Akademi Patlayıcı Mühendisliği İnşaat Madencilik Sanayi ve Ticaret LTD.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Indirect evidence “Sektörde uzun yıllar başarılı işlere imza atmış, deneyimli uzman kadromuzla, en modern makinalardan oluşan sürekli geliştirdiğimiz ekipman parkımızla, hızlı iş akışı sağlayan öz…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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: geotechnical construction firms. 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 geotechnical construction firms.
- Partial evidence
- Its own public description names part of geotechnical construction firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name geotechnical construction firms. 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 410 geotechnical construction firms based in Türkiye
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Geotechnical construction firms based in Türkiye at a glance
As of Sep 16, 2026Companies by employee count
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 410 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 geotechnical construction firms, 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 “geotechnical construction firms”. 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 geotechnical construction firms), 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 geotechnical construction firms, 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, 185 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 16, 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.
Geotechnical construction firms by metro
- Geotechnical construction firms in Istanbul80
- Geotechnical construction firms in Ankara50
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 geotechnical construction firms, 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 geotechnical construction firms are there based in Türkiye?
RevenueBase identified 410 geotechnical construction firms 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?
Iris Construction, headquartered in Kucukcekmece, tops this list with the largest team on record.
Which city has the most geotechnical construction firms?
Istanbul leads with 80 headquartered companies, followed by Ankara (50) and Izmir (21).
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 185 verified decision-maker contacts tracked across these 410 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 16, 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.
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