Company lists · Data refreshed September 2026

Top 25 Environmental consultancy firms based in Türkiye

Name: Environmental consultancy 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 594 companies tracked

RevenueBase identified 594 environmental consultancy firms headquartered in Türkiye as of September 2026 and tracks 4,386 professional contacts across them, including 427 with verified work emails. Ankara is the largest hub.

This list covers environmental consultancy 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

594Companies

4,386Contacts tracked

427Verified emails

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The 25 largest environmental consultancy firms based in Türkiye

Ranked by team size

Top 25 of 594 environmental consultancy 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 environmental consultancy 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	WYG Türkiye	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	51-200	77 contacts →
	Indirect evidence “WYG is an award-winning professional services firm employing over 1,600 people and operating from more than 50 locations across the UK, Europe, Africa, Asia and the Middle East.” Source: RevenueBase Database · checked Sep 14, 2026
2	Çınar Engineering Consultancy INC	Partial evidence	Etimesgut, TürkiyeHQ checked Sep 14, 2026	51-200	72 contacts →
	Partial evidence “The environment is a rising value in the world.” Source: RevenueBase Database · checked Sep 14, 2026
3	BE	Partial evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	51-200	64 contacts →
	Partial evidence “be is dedicated to providing sustainable engineering solutions and consultancy services in the fields of Renewables, Oil & Gas.” Source: RevenueBase Database · checked Sep 14, 2026
4	Çınar Çevre Laboratuvarı A.Ş	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	51-200	60 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
5	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
6	Semtrio	Partial evidence	İstanbul, TürkiyeHQ checked Sep 14, 2026	11-50	55 contacts →
	Partial evidence “Semtrio, the highest-rated B Corp in Türkiye, offers sustainability consultancy on a global scale, aligning corporate strategies with sustainability targets and turning climate…” Source: RevenueBase Database · checked Sep 14, 2026
7	Escarus Tskb Sustainability Consultancy	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 14, 2026	11-50	40 contacts →
	Indirect evidence “Established in April 2011, ESCARUS is a TSKB group company that provides sustainability solutions to its customers with its professional and experienced team.” Source: RevenueBase Database · checked Sep 14, 2026
8	Mitto Consultancy	Indirect evidence	Ümit, TürkiyeHQ checked Sep 14, 2026	51-200	38 contacts →
	Indirect evidence “Türkiye'de madencilik yatırımları konusunda 19 yılı aşkın deneyime sahiptir.” Source: RevenueBase Database · checked Sep 14, 2026
9	Ozifin Mining LTD	Indirect evidence	Çankaya, TürkiyeHQ checked Sep 14, 2026	11-50	30 contacts →
	Indirect 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
10	Investo Global	Indirect evidence	Bahçelievler, TürkiyeHQ checked Sep 14, 2026	51-200	29 contacts →
	Indirect evidence “We're more than 120 personnel in sectors of construction, real estate, engineering, healthcare tourism, and food industry, founded to integrate its experience of over nine years.” Source: RevenueBase Database · checked Sep 14, 2026
11	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
12	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
13	Casem ESG	Indirect evidence	Erenler, TürkiyeHQ checked Sep 14, 2026	11-50	24 contacts →
	Indirect evidence “CASEM ESG is a consulting company specialized in sustainability with more than 16 years of experience.” Source: RevenueBase Database · checked Sep 14, 2026
14	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
15	Crad Çevre Risk Analiz Denetim VE Eğitim Hizmetleri A.Ş	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 14, 2026	11-50	22 contacts →
	Indirect evidence “CRAD 2008 yılında, kimya ve benzeri endüstri alanlarını Türkiye ve dünya çapında kimyasal mevzuatlara uyum konusunda desteklemek amacıyla kurulmuştur.” Source: RevenueBase Database · checked Sep 14, 2026
16	Ekodenge INC	Partial evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	21 contacts →
	Partial evidence “Ekodenge was founded in 1996 by the experts working in the field since 80s to provide further engineering, consultancy, and architectural services.” Source: RevenueBase Database · checked Sep 14, 2026
17	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
18	Promota Mühendi̇sli̇k VE Müşavi̇rli̇k AŞ	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	21 contacts →
	Indirect evidence “PROMOTA her biri kendi alanında 20 yıl üzerinde mühendislik tasarımları, müşavirlik ve inşaat yönetimi alanlarında gösterdiği performans ve geliştirdiği projeler ile uzmanlaşmış…” Source: RevenueBase Database · checked Sep 14, 2026
19	ÇH Opti̇mum Mühendi̇sli̇k VE Danişmanlik	Indirect evidence	Samsun, TürkiyeHQ checked Sep 14, 2026	51-200	20 contacts →
	Indirect evidence “ÇH Optimum Engineering is an innovative young company.” Source: RevenueBase Database · checked Sep 14, 2026
20	Aqwadem Consulting	Indirect evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	19 contacts →
	Indirect evidence “AQWADEM is a Consulting Company offering complete solutions in Project Management, Corporate Management, Financial Management and Engineering fields in Infrastructure…” Source: RevenueBase Database · checked Sep 14, 2026
21	Altensis	Indirect evidence	Atasehir, TürkiyeHQ checked Sep 14, 2026	11-50	18 contacts →
	Indirect evidence “As we face with the uprising and unwanted effects of the global warming, minimizing our carbon dioxide emissions is becoming more and more important each day.” Source: RevenueBase Database · checked Sep 14, 2026
22	IO Environmental Solutions Research & Development Company	Partial evidence	Sariyer, TürkiyeHQ checked Sep 14, 2026	11-50	18 contacts →
	Partial evidence “io Environmental Solutions Research and Development Co.” Source: RevenueBase Database · checked Sep 14, 2026
23	Nartus	Strong evidence	Ankara, TürkiyeHQ checked Sep 14, 2026	11-50	17 contacts →
	Strong evidence “Nartus is an engineering and consultancy firm that produces analytical, rational and practical solutions for investments in the Energy, Environment and Agriculture sectors, which…” Source: RevenueBase Database · checked Sep 14, 2026
24	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
25	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

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: environmental consultancy 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 environmental consultancy firms.
Partial evidence: Its own public description names part of environmental consultancy firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental consultancy 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 594 environmental consultancy firms based in Türkiye

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Environmental consultancy firms based in Türkiye at a glance

As of Sep 14, 2026

9.7%Verified-email coverage

7.4Average contacts per company

1-10Median size (employees)

16.8%Largest-city concentration · Ankara

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

380

11-50

169

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 594 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 environmental consultancy 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 “environmental consultancy 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 environmental consultancy 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 environmental consultancy 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, 427 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.

Environmental consultancy firms by metro

Environmental consultancy firms in Ankara100
Environmental consultancy firms in Istanbul94
Environmental consultancy firms in Cankaya48
Environmental consultancy firms in Izmir26

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 environmental consultancy 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 environmental consultancy firms are there based in Türkiye?

RevenueBase identified 594 environmental consultancy 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?

WYG Türkiye, headquartered in Ankara, tops this list with the largest team on record.

Which city has the most environmental consultancy firms?

Ankara leads with 100 headquartered companies, followed by Istanbul (94) and Cankaya (48).

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 427 verified decision-maker contacts tracked across these 594 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.