Company lists · Data refreshed November 2026

Top 25 Energy efficiency engineering companies based in Türkiye

RevenueBase identified 220 company matches for energy efficiency engineering companies associated with Türkiye as of November 2026 and tracks 1,558 professional contacts across them, including 119 with verified work emails. Istanbul is the largest hub.

This list covers company matches for energy efficiency engineering companies 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 6, 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 6, 2026 How this list was built
220Companies
1,558Contacts tracked
119Verified emails
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The 25 largest energy efficiency engineering companies based in Türkiye

Ranked by team size
Top 25 of 220 company matches for energy efficiency engineering companies based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 2026201-500336 contacts →

Exact match

“A World Brand/Pride of Turkey In Energy Quality ENTES is a family that works ardently for energy quality and efficiency in our country, where energy is valuable and overcosting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“Efex Engineering provides turn-key solutions to his customers with experienced technical staff, who are certified as “Expert“ in energy sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 2026201-50043 contacts →

Exact match

“Founded in 1991 in Istanbul, AYTES Mühendislik has developed in the field of electromechanical engineering in parallel with the construction sector, which is the largest sector in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“ESCON Energy, founded in 2004 as the first Turkish ESCO and accredited in 2009 as Energy Efficiency Consultancy Company (EVD) by Ministry of Energy and Natural Resources, helps…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“Founded in 2013, VAT Enerji Hizmetleri offers energy efficiency studies, real‑time monitoring with OBSERVER, engineering and contracting services to cut consumption and costs -…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchAtasehir, TürkiyeHQ recorded Nov 6, 202611-5021 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 6, 2026 · View company records in RevenueBase
7Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“BEST Enerji Yönetimi; Sanayide ve Binalarda Enerji Verimliliğine odaklanmış tüm Türkiye'de faaliyetlerini yürüten enerji verimliliği şirketidir.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchIzmir, TürkiyeHQ recorded Nov 6, 202611-5017 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 6, 2026 · View company records in RevenueBase
9Exact matchBornova, TürkiyeHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Since 2008, we have been with you with our PAL engineering group companies in the fields of energy efficiency increase projects, efficiency-increasing engineering projects in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchAtasehir, TürkiyeHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“BESENVE, enerji verimliliği danışmanlığı alanında verimlilik artırıcı çözümlere dair enerji etüdü, mühendislik, projelendirme, uygulama, test ve işletmeye alma, performans ölçme…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBursa, TürkiyeHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“HAKKIMIZDA 2018 yılında "En güncel ekipmanlar ve uzman kadro ile denetimsiz, güvensiz ve pahalı, mühendislik ve danışmanlık hizmetlerini güvenilir ve erişilebilir seviyeye…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchÇorlu, TürkiyeHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Demand Enerji Servisleri, bünyesinde bulunan uzman mühendis ve teknik personeli ile Endüstriyel tesislerde ve enerji üretim santrallerinde enerji verimliliğini arttırmak amacıyla…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMelikgazi, TürkiyeHQ recorded Nov 6, 202651-2009 contacts →

Exact match

“Şirketimiz 2008 yılında enerji verimliliği, enerji kullanım ve üretim danışmanlık hizmetleri, ve enerji santralleri kurulumu konularında hizmet vermek üzere Kayseri Erciyes…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202611-509 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchİzmi̇r, TürkiyeHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Levay Enerji A.Ş, Elektrik ve Makine Mühendisliği alanında Proje,Uygulama ve Danışmanlık hizmetleri veren, geçmişten aldığı deneyimi, geleceğin teknolojisi için kullanmaya…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPendi̇k, TürkiyeHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Atasayın Enerji ve Mühendislik firması olarak iklim değişikliği ve enerji kaynaklarının verimli kullanılmasına önem veriyoruz.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Jaka Energy and Engineering Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAdana, TürkiyeHQ recorded Nov 6, 20261-107 contacts →

Exact match

“İşletmelerin büyük çoğunluğunda, tesisat hataları, yanlış seçilmiş cihazlar ve ömrünü tamamlamış sistemler nedeni ile verim kayıpları yaşanmaktadır.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCorlu, TürkiyeHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Dünyanın önde gelen markalarıyla partnerlik yapan firmamız, Şubat 2021’de iki makine mühendisi tarafından kuruldu.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchÇinar, TürkiyeHQ recorded Nov 6, 20261-105 contacts →

Exact match

“The purpose of EDITO Project (Energy Database Information Tracking Online System) Patent Pending, is to create a real time online energy tracking and auditing system, We are…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAtasehir / Istanbul, TürkiyeHQ recorded Nov 6, 20261-104 contacts →

Exact match

“We provide best services and solutions to our customer.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAnkara, TürkiyeHQ recorded Nov 6, 20261-104 contacts →

Exact match

“BS Dağıtık Enerji Sistemleri | Yenilenebilir Enerjide 25+ Yıl Uzmanlık Sürdürülebilir ve güvenli bir enerji geleceği için dağıtık enerji sistemleri artık bir tercih değil…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchKocaeli, TürkiyeHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Endüstriyel tesislerin kârlılıklarını artırmaları ve finansal sürdürülebilirliklerini sağlamaları için en etkili araçlardan biri enerji verimliliğidir.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Doğal kaynakların hızla tükenmesi sonucu her türlü enerjinin verimli kullanılması artık zaruri hale geldi.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchFenerbahce Mahallesi, TürkiyeHQ recorded Nov 6, 202611-503 contacts →

Exact match

“EPSOL, 20 yılı aşkın süredir sektörün önde gelen firmalarında gerek sahada gerek yönetimde, Enerji üretimi, verimliliği ve Optimizasyonu, Mühendislik çözümleri ve uygulamaları…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 220 energy efficiency engineering companies based in Türkiye

See the full list, filter by size, metro and specialty, and access 119 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy efficiency engineering companies based in Türkiye at a glance

As of Nov 6, 2026
7.6%Verified-email coverage
7.1Average contacts per company
1-10Median size (employees)
22.3%Largest-city concentration · Istanbul
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
120
11-50
81
51-200
12
201-500
5
1,001-5,000
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 220 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 “energy efficiency engineering companies” 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 119 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 6, 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.

Energy efficiency engineering companies 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 “energy efficiency engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy efficiency engineering companies are there based in Türkiye?

RevenueBase identified 220 company matches for energy efficiency engineering companies 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?

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

Which city has the most energy efficiency engineering companies?

Istanbul leads with 49 company records, followed by Ankara (20) and Izmir (12).

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 119 professional contacts with verified work emails tracked across these 220 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 6, 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.