Company lists · Data refreshed September 2026

Top 25 Hydrogeological consulting firms based in Türkiye

Name: Hydrogeological consulting firms based in Türkiye
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 225 companies tracked

RevenueBase identified 225 hydrogeological consulting firms headquartered in Türkiye as of September 2026 and tracks 1,686 professional contacts across them, including 142 with verified work emails. Ankara is the largest hub.

This list covers hydrogeological consulting 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 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

225Companies

1,686Contacts tracked

142Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest hydrogeological consulting firms based in Türkiye

Ranked by team size

Top 25 of 225 hydrogeological consulting firms 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 hydrogeological consulting firms: 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	Temelsu International Engineering Services INC	Partial evidence	Ankara, TürkiyeHQ checked Sep 14, 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 14, 2026
2	Promer Consultancy Engineering INC	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	51-200	102 contacts →
	Indirect evidence “PROMER Müşavirlik Mühendislik A.Ş.® is an independent engineering-consultancy company offering various professional solutions and services for industries such as mining, power…” Source: RevenueBase Database · checked Sep 14, 2026
3	Artemis Arıtım	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 14, 2026	51-200	56 contacts →
	Indirect evidence “1998 yılından günümüze çevre koruma konusunda faaliyet gösteren Artemis Arıtım uluslararası bilgi ve tecrübeye sahip mühendisleri ve akademik danışmanlarıyla birçok başarılı…” Source: RevenueBase Database · checked Sep 14, 2026
4	Ozifin Mining LTD	Partial evidence	Çankaya, TürkiyeHQ checked Sep 14, 2026	11-50	30 contacts →
	Partial evidence “Ozifin is an independent, international engineering and consulting company based in Turkey, providing comprehensive solutions to the mining industry and related sectors since 2016.” Source: RevenueBase Database · checked Sep 14, 2026
5	Atech Proses	Indirect evidence	Adana, TürkiyeHQ checked Sep 14, 2026	51-200	29 contacts →
	Indirect evidence “ATECH Proses is established as a Turkish private company in the field of water and environmental technologies in 2016.” Source: RevenueBase Database · checked Sep 14, 2026
6	Ulus Mühendi̇sli̇k	Indirect evidence	Maltepe, TürkiyeHQ checked Sep 14, 2026	11-50	26 contacts →
	Indirect evidence “Ulus Mühendislik Olarak, ÇEVRE DANIŞMANLIĞI' nda Uzman Mühendis Kadrolarımızla Hizmet Sunmaktayız.” Source: RevenueBase Database · checked Sep 14, 2026
7	Eçed Çevre Danışmanlık VE Mühendislik Hizmetleri	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 14, 2026	11-50	21 contacts →
	Indirect evidence “2001 yılında kurucumuz Harun TEKAY Çevre Danışmanlık hizmetlerinde aktif çalışma hayatına başlamıştır.” Source: RevenueBase Database · checked Sep 14, 2026
8	Akar-Su Mühendislik VE Müşavirlik Ltd. ŞTI	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	17 contacts →
	Indirect evidence “TR-AKAR-SU Mühendislik Müşavirlik Ltd.” Source: RevenueBase Database · checked Sep 14, 2026
9	2u1k Engineering And Consultancy INC	Indirect evidence	Çankaya, TürkiyeHQ checked Sep 14, 2026	11-50	15 contacts →
	Indirect evidence “2U1K Mühendislik ve Danışmanlık A.Ş, 2012 yılında Turgay Eser (Çevre Mühendisi), Günal Özenirler (Çevre Yüksek Mühendisi) ve Dündar Emre Kaya (Çevre Mühendisi) tarafından…” Source: RevenueBase Database · checked Sep 14, 2026
10	Bilgi Çevre Mühendislik	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 14, 2026	1-10	13 contacts →
	Indirect evidence “Bilgi Çevre, 2010 yılından bu yana Çevre Danışmanlık ve Müşavirlik Hizmetleri kapsamında çalışan bir grup mühendis tarafından kurulmuştur.” Source: RevenueBase Database · checked Sep 14, 2026
11	Fides Mühendislik	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	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 14, 2026
12	TPC Technology	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 14, 2026	51-200	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
13	INR Consulting & Engineering INC	Partial evidence	Cankaya, TürkiyeHQ checked Sep 14, 2026	11-50	11 contacts →
	Partial evidence “INR provides worldwide consulting and engineering services especially in mining projects mainly associated with geological, geotechnical, and hydraulic engineering disciplines.” Source: RevenueBase Database · checked Sep 14, 2026
14	Dorlion Çevre	Indirect evidence	Mamure, TürkiyeHQ checked Sep 14, 2026	1-10	11 contacts →
	Indirect evidence “Temmuz 2015'te faaliyetine başlayan Dorlion Çevre, Türkiye genelinde uzman kadrosuyla çevre mühendisliği konusunda mühendislik hizmetleri vermektedir.” Source: RevenueBase Database · checked Sep 14, 2026
15	Intergeo Çevre Teknolojileri Ltd.Şti	Indirect evidence	Kadikoy, TürkiyeHQ checked Sep 14, 2026	11-50	10 contacts →
	Indirect evidence “Uzman mühendislerimiz ile çevre sektöründe uygun, teknolojik, sürdürülebilir çözümler üretiyoruz.” Source: RevenueBase Database · checked Sep 14, 2026
16	Boğaziçi Arıtma VE Çevre Danışmanlık Hiz. San. Tic. Ltd. ŞTI	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 14, 2026	11-50	10 contacts →
	Indirect evidence “Boğaziçi Arıtma Ve Çevre Danışmanlık Hizmetleri San.” Source: RevenueBase Database · checked Sep 14, 2026
17	KVM Mühendislik & Müşavirlik Engineering And Consultancy	Indirect evidence	Cankaya, TürkiyeHQ checked Sep 14, 2026	11-50	8 contacts →
	Indirect evidence “KvM Mühendislik ve Müşavirlik, konusunda uzman, dinamik ve gelişen kadrosuyla, alanında en iyiyi hedefleyerek mühendislik ve müşavirlik hizmetleri sunmaktadır.” Source: RevenueBase Database · checked Sep 14, 2026
18	Sumodel	Partial evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	7 contacts →
	Partial evidence “SUMODEL Engineering and Consulting Inc.” Source: RevenueBase Database · checked Sep 14, 2026
19	Hidrowell	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	1-10	6 contacts →
	Indirect evidence “Hidrowell Mühendislik Müşavirlik Ltd.” Source: RevenueBase Database · checked Sep 14, 2026
20	HEC Engineering	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 14, 2026	1-10	5 contacts →
	Indirect evidence “Technology Based Engineering Solutions” Source: RevenueBase Database · checked Sep 14, 2026
21	Cubicgeo Hidrojeoloji Jeoloji Maden Danışmanlığı	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	1-10	4 contacts →
	Indirect evidence “CubicGEO Firması kurucuları Mert CÜYLAN ve M.Melih TAŞKIN Hacettepe Üniversitesi Hidrojeoloji Bölümünden mezun olduktan sonra 2006 yılından itibaren sektördeki lider kuruluşlarda…” Source: RevenueBase Database · checked Sep 14, 2026
22	Teori Earth Sciences	Partial evidence	Etimesgut, TürkiyeHQ checked Sep 14, 2026	1-10	4 contacts →
	Partial evidence “Teori Earth Sciences is an engineering and consultancy firm that aims to offer geological, hydrogeological, and environmental solutions at national and international standards…” Source: RevenueBase Database · checked Sep 14, 2026
23	Enigma Engineering Solutions	Indirect evidence	Aydın, TürkiyeHQ checked Sep 14, 2026	1-10	3 contacts →
	Indirect evidence “Enigma Engineering Solutions is an independent consultancy company which was found in 2023 in Turkey for the oil, gas & geothermal exploration & production industry.” Source: RevenueBase Database · checked Sep 14, 2026
24	YTK Mintech Proje Mühendislik Ltd. ŞTI	Indirect evidence	Çankaya, TürkiyeHQ checked Sep 14, 2026	11-50	3 contacts →
	Indirect evidence “YTK (yetkilendirilmiş tüzel kişilik), maden danışmanlığı, işletme,proje ve çevre müşavirlik alanında danışmanlık hizmetleri sunmak üzere kurulmuş; temel hedefi, uluslararası…” Source: RevenueBase Database · checked Sep 14, 2026
25	Mind Advisory	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	1-10	3 contacts →
	Indirect evidence “MIND Advisory is an independent mining advisory firm helping mining companies, investors and institutions make informed decisions across the mining lifecycle.” 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: hydrogeological consulting 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 hydrogeological consulting firms.
Partial evidence: Its own public description names part of hydrogeological consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydrogeological consulting 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 225 hydrogeological consulting firms based in Türkiye

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 142 reachable decision-makers.

Free signup · no credit card

View the full list →

Hydrogeological consulting firms based in Türkiye at a glance

As of Sep 14, 2026

8.4%Verified-email coverage

7.5Average contacts per company

1-10Median size (employees)

25.3%Largest-city concentration · Ankara

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

140

11-50

51-200

201-500

501-1,000

1,001-5,000

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 225 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 hydrogeological consulting 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 “hydrogeological consulting 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 hydrogeological consulting 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 hydrogeological consulting 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, 142 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.

Hydrogeological consulting firms by metro

Hydrogeological consulting firms in Ankara57
Hydrogeological consulting firms in Cankaya32

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 hydrogeological consulting 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 hydrogeological consulting firms are there based in Türkiye?

RevenueBase identified 225 hydrogeological consulting 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?

Temelsu International Engineering Services INC, headquartered in Ankara, tops this list with the largest team on record.

Which city has the most hydrogeological consulting firms?

Ankara leads with 57 headquartered companies, followed by Cankaya (32) and Istanbul (20).

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 142 verified decision-maker contacts tracked across these 225 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.

Ready to reach these companies? Verified emails and direct dials for all 225 hydrogeological consulting firms based in Türkiye. Start with a free account, no credit card.

Download this list →

Related lists

Hydrogeological consulting firms by geography

Browse the directory

Browse: Companies home · All Türkiye lists · All Hydrogeological consulting firms lists · New lists

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.