Company lists · Data refreshed November 2026

Top 25 Hydrogeology consultants based in Türkiye

RevenueBase identified 230 company matches for hydrogeology consultants associated with Türkiye as of November 2026 and tracks 1,808 professional contacts across them, including 186 with verified work emails. Ankara is the largest hub.

This list covers company matches for hydrogeology 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
230Companies
1,808Contacts tracked
186Verified emails
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The 25 largest hydrogeology consultants based in Türkiye

Ranked by team size
Top 25 of 230 company matches for hydrogeology 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 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
2Exact 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
3Exact 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
4Exact 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
5Exact 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
6Exact 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
7Exact 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
8Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“2001 yılında kurucumuz Harun TEKAY Çevre Danışmanlık hizmetlerinde aktif çalışma hayatına başlamıştır.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 20261-1016 contacts →

Exact match

“Bilgi Çevre, 2010 yılından bu yana Çevre Danışmanlık ve Müşavirlik Hizmetleri kapsamında çalışan bir grup mühendis tarafından kurulmuştur.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchKadikoy, TürkiyeHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Uzman mühendislerimiz ile çevre sektöründe uygun, teknolojik, sürdürülebilir çözümler üretiyoruz.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact 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
12Exact matchCankaya, TürkiyeHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“INR provides worldwide consulting and engineering services especially in mining projects mainly associated with geological, geotechnical, and hydraulic engineering disciplines.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202651-20010 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Bünyesinde jeoloji, maden ve çevre mühendisliğinin yanı sıra çeşitli disiplinlerden oluşan tecrübeli uzman kadrosu ile her geçen gün büyümeye devam eden FİDES MÜHENDİSLİK…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-508 contacts →

Exact match

“SUMODEL Engineering and Consulting Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAnkara, TürkiyeHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Hidrowell Mühendislik Müşavirlik Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchAnkara, TürkiyeHQ recorded Nov 6, 20261-105 contacts →

Exact match

“2013 yılından beri faaliyetlerine devam etmekte olan KRG Müşavirlik Mühendislik Mimarlık olarak, mühendis ve mimarlardan oluşan ekibimizle, her geçen gün gelişen dünyanın…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAnkara, TürkiyeHQ recorded Nov 6, 20261-105 contacts →

Exact match

“CubicGEO Firması kurucuları Mert CÜYLAN ve M.Melih TAŞKIN Hacettepe Üniversitesi Hidrojeoloji Bölümünden mezun olduktan sonra 2006 yılından itibaren sektördeki lider kuruluşlarda…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchEtimesgut, TürkiyeHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Teori Earth Sciences is an engineering and consultancy firm that aims to offer geological, hydrogeological, and environmental solutions at national and international standards…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAnkara, TürkiyeHQ recorded Nov 6, 20261-105 contacts →

Exact match

“ATINEN Engineering Consulting Software Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchÇankaya, TürkiyeHQ recorded Nov 6, 202611-504 contacts →

Exact match

“YTK (yetkilendirilmiş tüzel kişilik), maden danışmanlığı, işletme,proje ve çevre müşavirlik alanında danışmanlık hizmetleri sunmak üzere kurulmuş; temel hedefi, uluslararası…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Technology Based Engineering Solutions”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchKağıthane, TürkiyeHQ recorded Nov 6, 20261-103 contacts →

Exact match

“NOVA GEOTEKNİK - PROFESSIONAL SOLUTIONS Nova Geoteknik ensures that all the projects it serves are designed and constructed within the national and international standards.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAnkara, TürkiyeHQ recorded Nov 6, 20261-103 contacts →

Exact match

“We are a rapidly growing consultancy firm specializing in a comprehensive range of mining services, committed to delivering exceptional value and cutting-edge solutions tailored…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAydın, TürkiyeHQ recorded Nov 6, 20261-102 contacts →

Exact match

“Enigma Engineering Solutions is an independent consultancy company which was found in 2023 in Turkey for the oil, gas & geothermal exploration & production industry.”

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

Showing 25 of 230 hydrogeology consultants based in Türkiye

See the full list, filter by size, metro and specialty, and access 186 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogeology consultants based in Türkiye at a glance

As of Nov 6, 2026
10.3%Verified-email coverage
7.9Average contacts per company
1-10Median size (employees)
24.8%Largest-city concentration · Ankara
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
144
11-50
64
51-200
13
201-500
7
501-1,000
1
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 230 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 “hydrogeology 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 186 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.

Hydrogeology consultants by metro

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 “hydrogeology consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrogeology consultants are there based in Türkiye?

RevenueBase identified 230 company matches for hydrogeology 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?

Temelsu International Engineering Services INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most hydrogeology consultants?

Ankara leads with 57 company records, followed by Cankaya (32) and Istanbul (30).

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 186 professional contacts with verified work emails tracked across these 230 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.