Company lists · Data refreshed November 2026

Top 25 Geological engineering consultants based in Türkiye

RevenueBase identified 554 company matches for geological engineering consultants associated with Türkiye as of November 2026 and tracks 4,738 professional contacts across them, including 343 with verified work emails. Ankara is the largest hub.

This list covers company matches for geological engineering consultants associated with Türkiye, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
554Companies
4,738Contacts tracked
343Verified emails
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The 25 largest geological engineering consultants based in Türkiye

Ranked by team size
Top 25 of 554 company matches for geological engineering consultants based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBesiktas, TürkiyeHQ recorded Nov 6, 2026201-500355 contacts →

Exact match

“Sigma olarak inşaat sektöründeki 30 yılı aşkın tecrübemiz ve çözüm odaklı yaklaşımımızla Türkiye'nin en güvenilir mühendislik ve danışmanlık firmaları arasında yer alıyoruz.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAnkara, TürkiyeHQ recorded Nov 6, 2026201-500212 contacts →

Exact match

“TEMELSU is a well known Turkish consulting engineering company which provides multidisciplinary engineering services, locally and internationally, since its foundation in 1969.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBeşiktaş, TürkiyeHQ recorded Nov 6, 2026201-500175 contacts →

Exact match

“KASKTAŞ’ın doğuşu, 1957 yılında kurulan ve günümüzde dünyanın en büyük taahhüt firmaları arasında yer alan ENKA İnşaat ve Sanayi A.Ş.’ye dayanmaktadır.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAnkara, TürkiyeHQ recorded Nov 6, 2026501-1,000129 contacts →

Exact match

“IKSA Engineering Consultancy Construction Industry and Trade Inc; with its expert technical staff, numerous technological machinery and successfully concluded domestic and foreign…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202651-200105 contacts →

Exact match

“PROMER Müşavirlik Mühendislik A.Ş.® is an independent engineering-consultancy company offering various professional solutions and services for industries such as mining, power…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchEtimesgut, TürkiyeHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“The environment is a rising value in the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchCekmekoy, TürkiyeHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“Zemin Etud ve Tasarim A.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“HİZMET ALANLARIMIZ YÜKSEK YAPILAR ENDÜSTRİ VE ENERJİ TESİSLERİ TOPLU KONUTLAR HASTANELER TURİSTİK TESİSLER ve AVM'ler DEPREM GÜVENLİK ANALİZLERİ KENTSEL DÖNÜŞÜM PROJELERİ DİĞER…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“GeoDestek Zemar Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“AGM Mühendislik 1993 yılında Ankara'da kurulmuştur.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchMaltepe, TürkiyeHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“Ulus Mühendislik Olarak, ÇEVRE DANIŞMANLIĞI' nda Uzman Mühendis Kadrolarımızla Hizmet Sunmaktayız.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Antek Makina is a Turkey based leading engineering and project company which provides engineering & design, project management, manufacturing & installation, quality control…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchÇankaya, TürkiyeHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Ozifin is an independent, international engineering and consulting company based in Turkey, providing comprehensive solutions to the mining industry and related sectors since 2016.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAkaretler, TürkiyeHQ recorded Nov 6, 202611-5024 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“PROMOTA her biri kendi alanında 20 yıl üzerinde mühendislik tasarımları, müşavirlik ve inşaat yönetimi alanlarında gösterdiği performans ve geliştirdiği projeler ile uzmanlaşmış…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“TR-AKAR-SU Mühendislik Müşavirlik Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBeşiktaş, TürkiyeHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Büro Statik Mühendislik İnşaat San.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Modern Muhendislik was established in 2005 by Galip Topönder, who has 25 years of experience in Civil & Structural Engineering.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“ENDECO is an engineering, design and consultancy company which was established in 2003.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202651-20016 contacts →

Exact match

“URAL Engineering Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchHttps://g.page/blaym, TürkiyeHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Company Profile Browder + LeGuizamon & Associates, Inc.(BLA) is a versatile structural engineering consulting firm with more than completed projects since 1981.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchKadıkoy - Istanbul, TürkiyeHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“The company was first established in 1965 under the name of “Vehbi Ozden Project & Design”, mostly working in the area of reinforced concrete structural design, construction of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“TR (EN & FR see below) Geomed yılından beri geoteknik mühendisliği uzmanlığı gerektiren işlerde müşterilerine hızlı, kaliteli ve yenilikçi çözümler sunan bir proje firmasıdır.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSarıçam/adana, TürkiyeHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Kocabey Hafriyat is a construction company based out of Cihadiye, Sarıçam/Adana, Turkey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“FNÇ Mühendislik yerbilimleri konusundaki deneyimi ve bilgi birikimi ile mühendislik ve danışmanlık hizmeti vermek amacı ile kurulmuştur.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 554 geological engineering consultants based in Türkiye

See the full list, filter by size, metro and specialty, and access 343 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geological engineering consultants based in Türkiye at a glance

As of Nov 6, 2026
7.2%Verified-email coverage
8.6Average contacts per company
1-10Median size (employees)
18.6%Largest-city concentration · Ankara
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
326
11-50
154
51-200
50
201-500
17
501-1,000
4
1,001-5,000
1

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 554 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Türkiye whose business descriptions match “geological engineering consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 343 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “geological engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geological engineering consultants are there based in Türkiye?

RevenueBase identified 554 company matches for geological engineering consultants associated with Türkiye as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

SIGMA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most geological engineering consultants?

Ankara leads with 103 company records, followed by Istanbul (93) and Cankaya (49).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 343 professional contacts with verified work emails tracked across these 554 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.