Company lists · Data refreshed November 2026

Top 15 Geothermal system integrators based in Türkiye

RevenueBase identified 126 company matches for geothermal system integrators associated with Türkiye as of November 2026 and tracks 824 professional contacts across them, including 101 with verified work emails. Istanbul is the largest hub.

This list covers company matches for geothermal system integrators 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
126Companies
824Contacts tracked
101Verified emails
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The 15 largest geothermal system integrators based in Türkiye

Ranked by team size
Top 15 of 126 company matches for geothermal system integrators 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 matchGebze, TürkiyeHQ recorded Nov 6, 2026201-500164 contacts →

Exact match

“EGESIM, founded in 1994, is an energy solutions company focused on industrial electrical and automation systems and EPC (engineering, procurement and construction) of geothermal…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAnkara, TürkiyeHQ recorded Nov 6, 20261,001-5,000127 contacts →

Exact match

“Bilgi birikimini yatırıma ve tasarrufa dönüştürmek için çalışmalarını 1990 yılından bu yana sürdüren Doğan Jeotermal Group ülkemizin sahip olduğu jeotermal enerji kaynaklarını…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBayraklı, TürkiyeHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“GMK Energy is a world leader consulting, engineering and project development company which gives engineering, project design, consultancy, owner's engineering and integrated…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Since 1987 Titan Intelligent Building Technologies, is a systems integrator and R&D engineering firm that specializes manufacturing, sales and services in the automation of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAfyon, TürkiyeHQ recorded Nov 6, 202651-20015 contacts →

Exact match

“KOZANLAR GRUP is a company based out of Turkey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchAltunizade, TürkiyeHQ recorded Nov 6, 202651-20014 contacts →

Exact match

“Dansuk Engineering - a solution partner to global corporations like Koç Holding, Arçelik, Beko, LG and Arctic - has been providing innovative HVAC and energy solutions for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-507 contacts →

Exact match

“ALTERNATİF POWER® has been established in 1994 and has been working on the fields of energy, petrol, and geothermal power.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGaziantep, TürkiyeHQ recorded Nov 6, 202611-506 contacts →

Exact match

“2002 yılında, İstanbul’da kurulmuş olan şirketimiz, ülkemizde gün geçtikçe lüksten öte ihtiyaç haline gelen, ısıtma – soğutma – havalandırma konularında, projelendirme…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchIzmir, TürkiyeHQ recorded Nov 6, 202611-505 contacts →

Exact match

“LucidaSolar is a green-energy solutions provider dedicated to unleashing the Sun’s potential for the benefit of mankind.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBodrum, TürkiyeHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Kökeni 20 yıl öncesine dayanan ve 2017 yılında Makina Mühendisi Yücel Kaşıkara tarafından devir alınmasından sonra yenilenmiş kimliği ile Bodrum iş piyasasına giriş yapan firmamız…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchCankaya, TürkiyeHQ recorded Nov 6, 20261-103 contacts →

Exact match

“DCC Consulting provides its competences for system integration to the Energy Market and IT industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202611-501 contacts →

Exact match

“Mükemmel mekanları bugünden tasarlıyoruz Güvenilir bir danışman ve iş ortağınız olan ALY Bina Teknolojileri, sistem entegratörü, servis ve ürün sağlayıcı olarak sizlere, enerji…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchÇankaya, TürkiyeHQ recorded Nov 6, 20261-101 contacts →

Exact match

“Modern hayatı şekillendiren yeni keşiflerin öncülüğünü üstlenerek daha iyi bir yaşamın standartlarını oluşturmak için çalışan Progress Mühendislik, 2013 yılında kurulmuştur.2016…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchYeniköy Sarıyer, TürkiyeHQ recorded Nov 6, 20261-101 contacts →

Exact match

“DANIŞMANLIK, MÜHENDİSLİK VE PROJE HİZMETLERİ Isıtma, Soğutma ve Havalandırma İhtiyaçlarının Verimli Sistem Çözümleri Enerji Verimliliğinin ve Yenilenebilir Enerjinin Ön Planda…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAksu/antalya, TürkiyeHQ recorded Nov 6, 20261-101 contacts →

Exact match

Recorded description not available.

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

Showing 15 of 126 geothermal system integrators based in Türkiye

See the full list, filter by size, metro and specialty, and access 101 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Geothermal system integrators based in Türkiye at a glance

As of Nov 6, 2026
12.3%Verified-email coverage
6.5Average contacts per company
1-10Median size (employees)
11.9%Largest-city concentration · Istanbul
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
68
11-50
38
51-200
14
201-500
3
501-1,000
1
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 126 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 “geothermal system integrators” 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 101 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.

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 “geothermal system integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geothermal system integrators are there based in Türkiye?

RevenueBase identified 126 company matches for geothermal system integrators 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?

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

Which city has the most geothermal system integrators?

Istanbul leads with 15 company records, followed by Ankara (11) and Cankaya (6).

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 101 professional contacts with verified work emails tracked across these 126 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.