Company lists · Data refreshed November 2026

Top 25 Sustainability consultancies based in Türkiye

Name: Sustainability consultancies based in Türkiye
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 737 companies tracked

RevenueBase identified 737 company matches for sustainability consultancies associated with Türkiye as of November 2026 and tracks 3,935 professional contacts across them, including 585 with verified work emails. Istanbul is the largest hub.

This list covers company matches for sustainability consultancies associated with Türkiye, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built

737Companies

3,935Contacts tracked

585Verified emails

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The 25 largest sustainability consultancies based in Türkiye

Ranked by team size

Top 25 of 737 company matches for sustainability consultancies based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	BE	Exact match	Ankara, TürkiyeHQ recorded Nov 5, 2026	51-200	60 contacts →
	Exact match “be is dedicated to providing sustainable engineering solutions and consultancy services in the fields of Renewables, Oil & Gas.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Semtrio	Exact match	İstanbul, TürkiyeHQ recorded Nov 5, 2026	11-50	49 contacts →
	Exact match “Semtrio, the highest-rated B Corp in Türkiye, offers sustainability consultancy on a global scale, aligning corporate strategies with sustainability targets and turning climate…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3	Escarus Tskb Sustainability Consultancy	Exact match	Istanbul, TürkiyeHQ recorded Nov 5, 2026	11-50	44 contacts →
	Exact match “Established in April 2011, ESCARUS is a TSKB group company that provides sustainability solutions to its customers with its professional and experienced team.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	Arge Consulting Arge Danışmanlık	Exact match	Beykoz, TürkiyeHQ recorded Nov 5, 2026	11-50	43 contacts →
	Exact match “ARGE Consulting is a globally recognized Turkish management consulting firm that was founded in 1991.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5	Mitto Consultancy	Exact match	Ümit, TürkiyeHQ recorded Nov 5, 2026	51-200	42 contacts →
	Exact match “Türkiye'de madencilik yatırımları konusunda 19 yılı aşkın deneyime sahiptir.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Ulus Mühendi̇sli̇k	Exact match	Maltepe, TürkiyeHQ recorded Nov 5, 2026	11-50	33 contacts →
	Exact match “Ulus Mühendislik Olarak, ÇEVRE DANIŞMANLIĞI' nda Uzman Mühendis Kadrolarımızla Hizmet Sunmaktayız.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Proçed Çevre Danışmanlığı Mühendislik İnş. San. VE Tic. Ltd. ŞTI	Exact match	İzmir, TürkiyeHQ recorded Nov 5, 2026	11-50	31 contacts →
	Exact match “Proçed Çevre Danışmanlığı Mühendislik İnş.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	S360	Exact match	Istanbul, TürkiyeHQ recorded Nov 5, 2026	11-50	29 contacts →
	Exact match “We are sustainability specialists helping brands and corporates to make better choices.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	Gaia Sourcing UK LLP	Exact match	Tomtom, TürkiyeHQ recorded Nov 5, 2026	11-50	28 contacts →
	Exact match “Gaia Sourcing is a company registered in London with roots of its business extending to 1993.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	Casem ESG	Exact match	Erenler, TürkiyeHQ recorded Nov 5, 2026	11-50	24 contacts →
	Exact match “CASEM ESG is a consulting company specialized in sustainability with more than 16 years of experience.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	Erke Sustainability Consultancy	Exact match	Üsküdar, TürkiyeHQ recorded Nov 5, 2026	11-50	23 contacts →
	Exact match “ERKE was founded in 2007 to provide electrical project design, lighting, and application consultancy services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Sürdürülebilirlik Akademisi	Exact match	İstanbul, TürkiyeHQ recorded Nov 5, 2026	11-50	23 contacts →
	Exact match “2009 yılında, sürdürülebilir ve daha yaşanabilir bir dünya için iş dünyasında değişim yaratmak ve geleceği şekillendirmede etkili olmak üzere bir araya geldik.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Ekodenge INC	Exact match	Ankara, TürkiyeHQ recorded Nov 5, 2026	11-50	21 contacts →
	Exact match “Ekodenge was founded in 1996 by the experts working in the field since 80s to provide further engineering, consultancy, and architectural services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Altensis	Exact match	Atasehir, TürkiyeHQ recorded Nov 5, 2026	11-50	21 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Eçed Çevre Danışmanlık VE Mühendislik Hizmetleri	Exact match	Istanbul, TürkiyeHQ recorded Nov 5, 2026	11-50	20 contacts →
	Exact match “2001 yılında kurucumuz Harun TEKAY Çevre Danışmanlık hizmetlerinde aktif çalışma hayatına başlamıştır.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Akar-Su Mühendislik VE Müşavirlik Ltd. ŞTI	Exact match	Ankara, TürkiyeHQ recorded Nov 5, 2026	11-50	20 contacts →
	Exact match “TR-AKAR-SU Mühendislik Müşavirlik Ltd.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Greenlife Danışmanlık	Exact match	Ankara, TürkiyeHQ recorded Nov 5, 2026	11-50	20 contacts →
	Exact match “Çevre Miras Değil, Gelecek Nesillere Devredilecek Emanettir.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Nartus	Exact match	Ankara, TürkiyeHQ recorded Nov 5, 2026	11-50	18 contacts →
	Exact match “Nartus is an engineering and consultancy firm that produces analytical, rational and practical solutions for investments in the Energy, Environment and Agriculture sectors, which…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Ençev Enerji̇	Exact match	Ankara, TürkiyeHQ recorded Nov 5, 2026	51-200	18 contacts →
	Exact match “EN-ÇEV Enerji Çevre Yatırımları ve Danışmanlığı Haritacılık İmar İnşaat A.Ş.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Onur Enerji	Exact match	Izmir, TürkiyeHQ recorded Nov 5, 2026	11-50	17 contacts →
	Exact match “Onur Enerji is a technical consultancy company, specializing in energy efficiency and renewable energy technologies to make the world greener.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21	Bilgi Çevre Mühendislik	Exact match	İstanbul, TürkiyeHQ recorded Nov 5, 2026	1-10	16 contacts →
	Exact match “Bilgi Çevre, 2010 yılından bu yana Çevre Danışmanlık ve Müşavirlik Hizmetleri kapsamında çalışan bir grup mühendis tarafından kurulmuştur.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22	Ceee Eçem	Exact match	İstanbul, TürkiyeHQ recorded Nov 5, 2026	11-50	16 contacts →
	Exact match “Center for Energy, Environment and Economy was founded as a research and development centre in 2009 at Ozyegin University in Istanbul, Turkey.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Kıymet-I Harbiye Yönetim Danışmanlık	Exact match	Istanbul, TürkiyeHQ recorded Nov 5, 2026	11-50	15 contacts →
	Exact match “Kıymet-i Harbiye, sürdürülebilirlik ve kurumsal sorumluluk yönetimi alanında danışmanlık ve uygulama hizmetleri sunmak amacıyla 2009 yılında kurulmuştur.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	Proventus Danışmanlık	Exact match	Üsküdar / İstanbul, TürkiyeHQ recorded Nov 5, 2026	11-50	14 contacts →
	Exact match “Proventus, müşterilerinin ihtiyaçları doğrultusunda özelleştirilmiş çözümler sunarak; büyümelerine, sürdürülebilir olmalarına ve hedeflerine ulaşmalarına yardımcı olmak amacıyla…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25	Life Climate	Exact match	Çankaya, TürkiyeHQ recorded Nov 5, 2026	11-50	12 contacts →
	Exact match “Life Climate stands as a premier sustainability consultancy firm in Turkiye, dedicated to addressing and mitigating environmental impacts with a strong commitment to comprehensive…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “sustainability consultancies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 737 sustainability consultancies based in Türkiye

See the full list, filter by size, metro and specialty, and access 585 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sustainability consultancies based in Türkiye at a glance

As of Nov 5, 2026

14.9%Verified-email coverage

5.3Average contacts per company

1-10Median size (employees)

28.6%Largest-city concentration · Istanbul

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

522

11-50

186

51-200

201-500

501-1,000

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 737 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Türkiye whose business descriptions match “sustainability consultancies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 585 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Sustainability consultancies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “sustainability consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sustainability consultancies are there based in Türkiye?

RevenueBase identified 737 company matches for sustainability consultancies associated with Türkiye as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

BE tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most sustainability consultancies?

Istanbul leads with 211 company records, followed by Ankara (98) and Izmir (44).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 585 professional contacts with verified work emails tracked across these 737 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 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 SmartSearch, 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.