Company lists · Data refreshed September 2026

Top 10 Clean energy consultants based in Istanbul, Türkiye

RevenueBase identified 84 clean energy consultants headquartered in Istanbul, Türkiye as of September 2026 and tracks 686 professional contacts across them, including 127 with verified work emails. Ankara is the largest hub.

This list covers clean energy consultants headquartered in Istanbul, 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 16, 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 16, 2026 86% judged on-target in blind review
84Companies
686Contacts tracked
127Verified emails
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The 10 largest clean energy consultants based in Istanbul, Türkiye

Ranked by team size
Top 10 of 84 clean energy consultants based in Istanbul, Türkiye, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to clean energy consultants: 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 evidenceIstanbul, TürkiyeHQ checked Sep 16, 2026201-50059 contacts →

Partial evidence

“Operating within the ALDO Group, established in 1969, ALDO Energy began its journey in 2014 with the aim of serving in the solar energy sector by making use of creative and…”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceIstanbul, TürkiyeHQ checked Sep 16, 202651-20048 contacts →

Indirect evidence

“ENVESU is a consulting and project management company offering a wide range of services in the construction industry.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceIstanbul, TürkiyeHQ checked Sep 16, 202651-20023 contacts →

Partial evidence

“Yenilenebilir enerji kaynaklarına dayalı çözümlerimizle iş yerinize güvenilir ve sürdürülebilir elektrik tedariki sağlıyoruz.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceIstanbul, TürkiyeHQ checked Sep 16, 20261-105 contacts →

Indirect evidence

“Sustainable Future, gelişen teknoloji ve bilimsel araştırmaları harmanlayarak sürdürülebilirliği artırıcı yöntemler geliştiren proje temelli bir şirkettir.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceIstanbul, TürkiyeHQ checked Sep 16, 202611-504 contacts →

Partial evidence

“BNK Enerji başta yenilenebilir enerji olmak üzere, enerji sektörünün tüm alanlarında faaliyet göstermeyi hedefleyerek 2022 yılında kurulmuştur.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceIstanbul, TürkiyeHQ checked Sep 16, 20261-104 contacts →

Indirect evidence

“strategic sustainability management”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceIstanbul, TürkiyeHQ checked Sep 16, 202611-503 contacts →

Indirect evidence

“ACE Consulting and Engineering (ACE) Inc.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceIstanbul, TürkiyeHQ checked Sep 16, 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 16, 2026
9Indirect evidenceIstanbul, TürkiyeHQ checked Sep 16, 20261-102 contacts →

Indirect 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 16, 2026
10Strong evidenceIstanbul, TürkiyeHQ checked Sep 16, 20261-101 contacts →

Strong evidence

“Biovizyon Energy Ltd, located in Istanbul, TURKEY, is a renewable energy consultancy and project development company for wind, biofuel, biogas, and solar power.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 10 of 84 clean energy consultants based in Istanbul, Türkiye

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Clean energy consultants based in Istanbul, Türkiye at a glance

As of Sep 16, 2026
18.5%Verified-email coverage
8.2Average contacts per company
1-10Median size (employees)
115.5%Largest-city concentration · Ankara
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
46
11-50
29
51-200
5
201-500
3
501-1,000
1

Email recency for this list is measured across the whole Türkiye list rather than for Istanbul, so it is reported there. Company counts and contact totals on this page are exact for Istanbul, over 84 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 clean energy consultants, 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 Istanbul, Türkiye whose own description of what they do matches “clean energy consultants”. 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 clean energy consultants), 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 clean energy consultants, and records with no verified work email. Companies headquartered outside Istanbul 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, 127 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 16, 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.

Clean energy consultants by metro in Türkiye

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 clean energy consultants, 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 clean energy consultants are there based in Istanbul, Türkiye?

RevenueBase identified 84 clean energy consultants headquartered in Istanbul, 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?

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

Which city has the most clean energy consultants?

Ankara leads with 97 headquartered companies, followed by Istanbul (84) and Cankaya (58).

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 127 verified decision-maker contacts tracked across these 84 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 16, 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.