Company lists · Data refreshed September 2026

Top 25 Esg compliance consulting firms based in Türkiye

RevenueBase identified 141 esg compliance consulting firms headquartered in Türkiye as of September 2026 and tracks 743 professional contacts across them, including 109 with verified work emails. Istanbul is the largest hub.

This list covers esg compliance 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 28, 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 28, 2026 86% judged on-target in blind review
141Companies
743Contacts tracked
109Verified emails
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The 25 largest esg compliance consulting firms based in Türkiye

Ranked by team size
Top 25 of 141 esg compliance consulting firms based in Türkiye, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to esg compliance 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceİstanbul, TürkiyeHQ checked Sep 28, 202611-5055 contacts →

Indirect 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 28, 2026
2Partial evidenceBeykoz, TürkiyeHQ checked Sep 28, 202611-5044 contacts →

Partial evidence

“ARGE Consulting is a globally recognized Turkish management consulting firm that was founded in 1991.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceIstanbul, TürkiyeHQ checked Sep 28, 202611-5040 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 28, 2026
4Indirect evidenceİzmir, TürkiyeHQ checked Sep 28, 202611-5024 contacts →

Indirect evidence

“Proçed Çevre Danışmanlığı Mühendislik İnş.”

Source: RevenueBase Database · checked Sep 28, 2026
5Strong evidenceErenler, TürkiyeHQ checked Sep 28, 202611-5024 contacts →

Strong evidence

“CASEM ESG is a consulting company specialized in sustainability with more than 16 years of experience.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceKadıkoy, TürkiyeHQ checked Sep 28, 202611-5015 contacts →

Indirect evidence

“DORUKSISTEM ENGINEERING, TECHNOLOGY & CONSULTANCY, INC.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceİstanbul, TürkiyeHQ checked Sep 28, 202611-5012 contacts →

Partial evidence

“Demir Energy Consulting is helping its customers to achieve their sustainability goals by providing solutions on climate change strategies, carbon management, effective and…”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceÇankaya, TürkiyeHQ checked Sep 28, 202611-5010 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 28, 2026
9Indirect evidenceÇankaya, TürkiyeHQ checked Sep 28, 202611-509 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 28, 2026
10Partial evidenceKonak/i̇zmir, TürkiyeHQ checked Sep 28, 20261-109 contacts →

Partial evidence

“Özdirek Çevre is a management consulting company based out of Konak, 847.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceAnkara, TürkiyeHQ checked Sep 28, 202611-507 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 28, 2026
12Indirect evidenceİzmi̇r, TürkiyeHQ checked Sep 28, 20261-106 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 28, 2026
13Indirect evidenceÇankaya, TürkiyeHQ checked Sep 28, 20261-105 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 28, 2026
14Indirect evidenceİzmir, TürkiyeHQ checked Sep 28, 202611-505 contacts →

Indirect evidence

“YÖNDES Yönetim Danışmanlık işletmelerin kurumsal yapılanmalarının her adımını ulusal ve uluslar arası standart ve uygulamalar ile uyumlu ve entegre yönetim süreçlerinde…”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“strategic sustainability management”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 202611-503 contacts →

Partial evidence

“ACE Consulting and Engineering (ACE) Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceAnkara, TürkiyeHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“SIM Sustainability Innovation and Management Consultancy Company was established in 2022 with the aim of "Creating Impact".”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261-103 contacts →

Partial evidence

“ESG Turkey Danışmanlık toplum ve doğa faydasına faaliyet gösteren, özel sektöre modern iş dünyası gerekliliklerini yerine getirmesi için destek olan bir kuruluştur.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“UZD sürdürülebilirlik konusunda, özellikle çevre, iş sağlığı ve güvenliği alanlarında uzmanlaşmış bir yönetim danışmanlığı firmasıdır.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceAnkara, TürkiyeHQ checked Sep 28, 20261-102 contacts →

Partial evidence

“Reviver Consulting was established in Ankara in 2024 by seasoned professionals in the environmental sector, driven by a shared commitment to environmental sustainability and…”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261-102 contacts →

Partial evidence

“Ant ESG was founded in Istanbul by Environmental Engineer Serkan İktü, who has more than 14 years of experience in different fields of the industry, especially in the retail oil…”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceIzmir, TürkiyeHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“MBc Sustainability A global sustainability company for customized corporate policies, sustainable CSR projects, and reporting guidance based on GRI Standards.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceAnkara, TürkiyeHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“At CoBirebir, our mission is to drive global sustainability by leveraging the transformative power of businesses.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceBursa, TürkiyeHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Sustainability is applauded in the world of today and will be mandatory in the world of tomorrow, where the world's environmental and social signals demonstrate the increasing…”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceIstanbul, TürkiyeHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Crit Consulting provides consulting services to national and international financial institutions, private equities, private and industrial sectors in Turkey and abroad to help…”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 141 esg compliance consulting firms based in Türkiye

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Esg compliance consulting firms based in Türkiye at a glance

As of Sep 28, 2026
14.7%Verified-email coverage
5.3Average contacts per company
1-10Median size (employees)
17.0%Largest-city concentration · Istanbul
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
105
11-50
33
51-200
2
10001+
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 141 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 esg compliance 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 “esg compliance 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 esg compliance 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 esg compliance 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, 109 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 28, 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.

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 esg compliance 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 esg compliance consulting firms are there based in Türkiye?

RevenueBase identified 141 esg compliance 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?

Semtrio, headquartered in Istanbul, tops this list with the largest team on record.

Which city has the most esg compliance consulting firms?

Istanbul leads with 24 headquartered companies, followed by Ankara (15) and Izmir (12).

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 109 verified decision-maker contacts tracked across these 141 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 28, 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.