Company lists · Data refreshed September 2026

Top 25 Ecological consulting firms based in Türkiye

Name: Ecological 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 289 companies tracked

RevenueBase identified 289 ecological consulting firms headquartered in Türkiye as of September 2026 and tracks 1,743 professional contacts across them, including 140 with verified work emails. Ankara is the largest hub.

This list covers ecological 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

289Companies

1,743Contacts tracked

140Verified emails

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The 25 largest ecological consulting firms based in Türkiye

Ranked by team size

Top 25 of 289 ecological 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 ecological 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	Çınar Engineering Consultancy INC	Indirect evidence	Etimesgut, TürkiyeHQ checked Sep 14, 2026	51-200	72 contacts →
	Indirect evidence “The environment is a rising value in the world.” Source: RevenueBase Database · checked Sep 14, 2026
2	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
3	Proçed Çevre Danışmanlığı Mühendislik İnş. San. VE Tic. Ltd. ŞTI	Indirect evidence	İzmir, TürkiyeHQ checked Sep 14, 2026	11-50	24 contacts →
	Indirect evidence “Proçed Çevre Danışmanlığı Mühendislik İnş.” Source: RevenueBase Database · checked Sep 14, 2026
4	ETC Çevre Teknolojileri	Indirect evidence	Konutkent Çankaya, TürkiyeHQ checked Sep 14, 2026	11-50	22 contacts →
	Indirect evidence “ETC, 2004 yılında faaliyetlerine başlamış olup çevre danışmanlık, ÇED Raporları, Proje Tanıtım Dosyaları hazırlanması, atıksu arıtma tesisleri yapımı, işletme ve bakım hizmetleri…” Source: RevenueBase Database · checked Sep 14, 2026
5	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
6	IO Environmental Solutions Research & Development Company	Indirect evidence	Sariyer, TürkiyeHQ checked Sep 14, 2026	11-50	18 contacts →
	Indirect evidence “io Environmental Solutions Research and Development Co.” Source: RevenueBase Database · checked Sep 14, 2026
7	Greenlife Danışmanlık	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	17 contacts →
	Indirect evidence “Çevre Miras Değil, Gelecek Nesillere Devredilecek Emanettir.” Source: RevenueBase Database · checked Sep 14, 2026
8	GTE Sustainability And Energy Consultancy	Indirect evidence	Çankaya, TürkiyeHQ checked Sep 14, 2026	11-50	16 contacts →
	Indirect evidence “GTE, based in Ankara, Turkey, is an engineering and consultancy firm with an extensive local expertise and interdisciplinary experience in climate services, sustainability…” 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	MGS Proje Müşavirlik Mühendislik Ticaret Ltd. ŞTI	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	13 contacts →
	Indirect evidence “TR 2005 yılındaki kuruluşumuzdan itibaren, Müşterilerimize, Mühendislikte Gelişen Sürdürülebilirlik (MGS) ilkesi ile eksiksiz ve kaliteden ödün vermeyen çalışma anlayışımızla…” Source: RevenueBase Database · checked Sep 14, 2026
12	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
13	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
14	Resisco Mühendislik A.Ş	Indirect evidence	Çankaya, TürkiyeHQ checked Sep 14, 2026	11-50	10 contacts →
	Indirect evidence “Resisco, ülkenin alanlarında öncü firmalarına Sera Gazı Emisyonları, Sürekli Emisyon Ölçüm Sistemleri (SEÖS) Mevzuat ve Uygulamaları ve genel olarak Çevre Mevzuatları hakkında…” 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	Peterson Solutions Türkiye	Indirect evidence	Izmir, TürkiyeHQ checked Sep 14, 2026	11-50	9 contacts →
	Indirect evidence “Peterson, tarımsal üretimden ham madde işlemeye ve ürünlerin taşınması ile pazar dağıtımına kadar tüm tedarik zincirine dair derin bir bilgi birikimine sahiptir.” Source: RevenueBase Database · checked Sep 14, 2026
18	PPM Kirlilik Önleme VE Yönetimi Ltd. ŞTI	Indirect evidence	Çankaya, TürkiyeHQ checked Sep 14, 2026	11-50	9 contacts →
	Indirect evidence “ÇED Raporları Hazırlanması Çevre Danışmanlığı Uluslararası Kurum ve Kuruluşları İçin Çevresel ve Sosyal Etki Değerlendirmesi (ÇSED) Raporları Hazırlanması Sosyal Etki…” Source: RevenueBase Database · checked Sep 14, 2026
19	Özdirek Çevre	Partial evidence	Konak/i̇zmir, TürkiyeHQ checked Sep 14, 2026	1-10	9 contacts →
	Partial evidence “Özdirek Çevre is a management consulting company based out of Konak, 847.” Source: RevenueBase Database · checked Sep 14, 2026
20	Sera Mühendislik,sera Laboratuvar	Partial evidence	Melikgazi/kayseri, TürkiyeHQ checked Sep 14, 2026	11-50	8 contacts →
	Partial evidence “Sera Mühendislik,Sera Laboratuvar is a environmental management consulting, and Environment Laboratory company.” Source: RevenueBase Database · checked Sep 14, 2026
21	Filizi Mühendislik	Partial evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	7 contacts →
	Partial evidence “Filizi Mühendislik is an environmental and sustainability consulting company providing services for mining, energy, infrastructure, and industrial projects across Türkiye.” Source: RevenueBase Database · checked Sep 14, 2026
22	Macom Environment & Energy	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	7 contacts →
	Indirect evidence “MACOM Environment & Energy Corporation is an international, high-growth environmental company offering Environmental Modelling, Engineering, GIS, UAV, Mining and Regulatory…” Source: RevenueBase Database · checked Sep 14, 2026
23	Entegre Enerji̇ Çevre Danişmanlik	Indirect evidence	İzmi̇r, TürkiyeHQ checked Sep 14, 2026	1-10	6 contacts →
	Indirect evidence “Güvenilir hizmet anlayışıyla, değişen ve gelişen çevre mevzuatları kapsamında faaliyetlerin mevzuat kapsamında uyumluluğunun sağlanması ve bu durumun devamlılığı için alanında…” Source: RevenueBase Database · checked Sep 14, 2026
24	GEM Sustainability Services And Consultancy INC	Indirect evidence	Çankaya, TürkiyeHQ checked Sep 14, 2026	1-10	5 contacts →
	Indirect evidence “GEM Sustainability Services and Consultancy Inc.(GEM), founded in March 2019 and headquartered in Ankara, aim to provide sustainability services to national and international…” Source: RevenueBase Database · checked Sep 14, 2026
25	Urban Çevre Danişmanlik VE Mühendi̇sli̇k	Indirect evidence	Beşiktaş/i̇stanbul, TürkiyeHQ checked Sep 14, 2026	1-10	4 contacts →
	Indirect evidence 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: ecological 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 ecological consulting firms.
Partial evidence: Its own public description names part of ecological consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ecological 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 289 ecological consulting firms based in Türkiye

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Ecological consulting firms based in Türkiye at a glance

As of Sep 14, 2026

8.0%Verified-email coverage

6.0Average contacts per company

1-10Median size (employees)

12.5%Largest-city concentration · Ankara

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

190

11-50

51-200

201-500

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 289 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 ecological 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 “ecological 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 ecological 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 ecological 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, 140 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.

Ecological consulting firms by metro

Ecological consulting firms in Ankara36
Ecological consulting firms in Istanbul34

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 ecological 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 ecological consulting firms are there based in Türkiye?

RevenueBase identified 289 ecological 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?

Çınar Engineering Consultancy INC, headquartered in Baglica, tops this list with the largest team on record.

Which city has the most ecological consulting firms?

Ankara leads with 36 headquartered companies, followed by Istanbul (34) 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 140 verified decision-maker contacts tracked across these 289 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.