Company lists · Data refreshed September 2026

Top 25 Sustainability auditors based in Türkiye

RevenueBase identified 138 sustainability auditors headquartered in Türkiye as of September 2026 and tracks 756 professional contacts across them, including 138 with verified work emails. Istanbul is the largest hub.

This list covers sustainability auditors 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 22, 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 22, 2026 86% judged on-target in blind review
138Companies
756Contacts tracked
138Verified emails
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The 25 largest sustainability auditors based in Türkiye

Ranked by team size
Top 25 of 138 sustainability auditors based in Türkiye, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainability auditors: 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
1Partial evidenceİstanbul, TürkiyeHQ checked Sep 22, 202611-5055 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 22, 2026
2Indirect evidenceAvcilar, TürkiyeHQ checked Sep 22, 202651-20053 contacts →

Indirect evidence

“Ekoteks, “Güvenli Ürün Güvenli Üretim” ve “Sorumlu Üretim Sorumlu Tüketim” sorumluluğuyla çalışmaktadır.”

Source: RevenueBase Database · checked Sep 22, 2026
3Partial evidenceIstanbul, TürkiyeHQ checked Sep 22, 202611-5040 contacts →

Partial 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 22, 2026
4Indirect evidenceİzmir, TürkiyeHQ checked Sep 22, 202651-20035 contacts →

Indirect evidence

“ECOCERT, a global leader in certification in organic farming and organic cosmetics, relies on an international network of 30 branches operating in more than 130 countries.”

Source: RevenueBase Database · checked Sep 22, 2026
5Partial evidenceErenler, TürkiyeHQ checked Sep 22, 202611-5024 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
6Indirect evidenceBalçova/i̇zmir, TürkiyeHQ checked Sep 22, 202651-20015 contacts →

Indirect evidence

“CERES, 2004 yılından bu yana organik tarım ve gıda işleme, gıda endüstrisi için iyi işleme uygulamaları, organik tekstil ürünleri ve sürdürülebilir üretim alanları için kontrol ve…”

Source: RevenueBase Database · checked Sep 22, 2026
7Indirect evidenceIstanbul, TürkiyeHQ checked Sep 22, 202611-5014 contacts →

Indirect evidence

“Kıymet-i Harbiye, sürdürülebilirlik ve kurumsal sorumluluk yönetimi alanında danışmanlık ve uygulama hizmetleri sunmak amacıyla 2009 yılında kurulmuştur.”

Source: RevenueBase Database · checked Sep 22, 2026
8Indirect evidenceMaltepe, TürkiyeHQ checked Sep 22, 202611-5010 contacts →

Indirect evidence

“SBG Conformity Assessment Inc.(formerly Standard BM Trada Belgelendirme A.Ş) was established in 2004 as a Turkish-British joint venture.”

Source: RevenueBase Database · checked Sep 22, 2026
9Partial evidenceSariyer, TürkiyeHQ checked Sep 22, 202611-5010 contacts →

Partial evidence

“Minerva Sustainability is a leading global organization specializing in environmental and social sustainability, product safety, and eco-labeling services for the textile and…”

Source: RevenueBase Database · checked Sep 22, 2026
10Indirect evidenceIzmir, TürkiyeHQ checked Sep 22, 202611-509 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 22, 2026
11Partial evidenceUmraniye, TürkiyeHQ checked Sep 22, 20261-109 contacts →

Partial evidence

“Carbon Gate: Pioneering the Path to Sustainability About Us: Carbon Gate is a leading environmental sustainability consultancy firm dedicated to assisting businesses in accurately…”

Source: RevenueBase Database · checked Sep 22, 2026
12Indirect evidenceAnkara, TürkiyeHQ checked Sep 22, 202611-508 contacts →

Indirect evidence

“AURA ULUSLAR ARASI BELGELENDİRME EĞİTİM DENETİM VE MUAYENE HİZ.”

Source: RevenueBase Database · checked Sep 22, 2026
13Partial evidenceIstanbul, TürkiyeHQ checked Sep 22, 20261-107 contacts →

Partial evidence

“To be ready for an impact-driven new era… With our experience in this sector, we offer our support to you in your sustainability journey.”

Source: RevenueBase Database · checked Sep 22, 2026
14Indirect evidenceBağcılar, TürkiyeHQ checked Sep 22, 20261-107 contacts →

Indirect evidence

“Sustainable Works Station Ltd.(SWS), 30 yıllık endüstri deneyimi ile 20 yılı aşkın kurumsal ve tedarik zinciri sürdürülebilirliği alanındaki uluslararası uzmanlık birikimi üzerine…”

Source: RevenueBase Database · checked Sep 22, 2026
15Partial evidenceÇankaya, TürkiyeHQ checked Sep 22, 20261-105 contacts →

Partial 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 22, 2026
16Indirect evidenceKadıköy, TürkiyeHQ checked Sep 22, 202611-504 contacts →

Indirect evidence

“Carbon Hints, müşterilerin ihtiyaçlarını karşılayan ve çevrenin uzun vadeli çıkarıyla tutarlı olan sürdürülebilir çevresel çözümler ile sürdürülebilirliği genel tedarik sürecine…”

Source: RevenueBase Database · checked Sep 22, 2026
17Indirect evidenceBodrum, TürkiyeHQ checked Sep 22, 20261-104 contacts →

Indirect evidence

“Nadide Çevre olarak, uzman mühendis ekibimiz ile Çevre Mevzuatı kapsamında Çevre İzni, ÇED Muafiyeti, Atık Yönetimi, Atıksu Yönetimi, Sıfır Atık Sistemi, Kurumsal Karbon Ayak İzi…”

Source: RevenueBase Database · checked Sep 22, 2026
18Indirect evidenceİstanbul, TürkiyeHQ checked Sep 22, 20261-104 contacts →

Indirect evidence

“SEEM, sürdürülebilirlik ve yönetim sistemleri konularında kuruluşlara strateji geliştirme, danışmalık ve eğitim hizmetleri vermektedir.”

Source: RevenueBase Database · checked Sep 22, 2026
19Indirect evidenceIstanbul, TürkiyeHQ checked Sep 22, 202611-503 contacts →

Indirect evidence

“ACE Consulting and Engineering (ACE) Inc.”

Source: RevenueBase Database · checked Sep 22, 2026
20Partial evidenceAnkara, TürkiyeHQ checked Sep 22, 20261-103 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 22, 2026
21Indirect evidenceIstanbul, TürkiyeHQ checked Sep 22, 20261-103 contacts →

Indirect 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 22, 2026
22Indirect evidenceİstanbul, TürkiyeHQ checked Sep 22, 20261-103 contacts →

Indirect evidence

“isgcevre.com bir ALKIM projesidir.”

Source: RevenueBase Database · checked Sep 22, 2026
23Indirect evidenceIstanbul, TürkiyeHQ checked Sep 22, 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 22, 2026
24Indirect evidenceNi̇lüfer, TürkiyeHQ checked Sep 22, 202611-502 contacts →

Indirect evidence

“ÇED ve Çevre Danışmanlık yeterlilik belgeleri ile kapsamlı çalışmalarını Sürdürülebilirlik raporları konusunda devam ettirmektedir.”

Source: RevenueBase Database · checked Sep 22, 2026
25Partial evidenceAnkara, TürkiyeHQ checked Sep 22, 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 22, 2026

Showing 25 of 138 sustainability auditors based in Türkiye

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Sustainability auditors based in Türkiye at a glance

As of Sep 22, 2026
18.3%Verified-email coverage
5.5Average contacts per company
1-10Median size (employees)
21.7%Largest-city concentration · Istanbul
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
99
11-50
32
51-200
6
501-1,000
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 138 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 sustainability auditors, 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 “sustainability auditors”. 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 sustainability auditors), 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 sustainability auditors, 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, 138 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 22, 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.

Sustainability auditors by metro

  • Sustainability auditors in Istanbul30

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 sustainability auditors, 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 sustainability auditors are there based in Türkiye?

RevenueBase identified 138 sustainability auditors 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 sustainability auditors?

Istanbul leads with 30 headquartered companies, followed by Ankara (16) and Izmir (14).

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 138 verified decision-maker contacts tracked across these 138 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 22, 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.