Company lists · Data refreshed September 2026

Top 12 Retrofit contractors based in Türkiye

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 85 companies tracked

RevenueBase identified 85 company matches for retrofit contractors associated with Türkiye as of September 2026 and tracks 354 professional contacts across them, including 25 with verified work emails. Istanbul is the largest hub.

This list covers company matches for retrofit contractors 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 September 17, 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 Sep 17, 2026 How this list was built

85Companies

354Contacts tracked

25Verified emails

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The 12 largest retrofit contractors based in Türkiye

Ranked by team size

Top 12 of 85 company matches for retrofit contractors based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	AFB	Exact match	Istanbul, TürkiyeHQ recorded Sep 17, 2026	11-50	12 contacts →
	Exact match “Aslında Logo belki de herşeyi söylüyor.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	PAL Mühendislik LTD ŞTI	Exact match	Bornova, TürkiyeHQ recorded Sep 17, 2026	11-50	12 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 · Sep 17, 2026 · View company records in RevenueBase
3	Dansuk Engineering	Exact match	Altunizade, TürkiyeHQ recorded Sep 17, 2026	51-200	11 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 · Sep 17, 2026 · View company records in RevenueBase
4	Atasayin Enerji̇ VE Mühendi̇sli̇k Anoni̇m Şi̇rketi̇	Exact match	Pendi̇k, TürkiyeHQ recorded Sep 17, 2026	1-10	10 contacts →
	Exact match “Atasayın Enerji ve Mühendislik firması olarak iklim değişikliği ve enerji kaynaklarının verimli kullanılmasına önem veriyoruz.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Erdemler Elektromekanik	Exact match	Ümraniye/i̇stanbul, TürkiyeHQ recorded Sep 17, 2026	11-50	10 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	EFT Construction Group	Exact match	Istanbul, TürkiyeHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match “The EFTCG is Europe’s leading manufacturer and contractor for the building envelope, and insulation.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Mekanik Endüstri Tesisat Taahhüt Sanayi VE Ticaret A.Ş	Exact match	Bornova, TürkiyeHQ recorded Sep 17, 2026	11-50	2 contacts →
	Exact match “Mekanik Endüstri, başta endüstriyel tesisler, fabrikalar ve idari binalar olmak üzere alışveriş merkezleri, eğitim ve hastane yapıları, kültür merkezleri ve yüksek yapılar gibi…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Solidmec Mühendislik	Exact match	Balıkesir, TürkiyeHQ recorded Sep 17, 2026	51-200	1 contacts →
	Exact match “Solid Mekanik olarak gerçekleştirdiğimiz her türlü ısı, ses, su izolasyonu ve havalandırma uygulamasında maliyet / fayda prensibini temel alarak enerji kayıplarının minimize…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Dodo Green Building	Exact match	İstanbul/ataşehir, TürkiyeHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “DODOGREEN BUİLDİNG olarak binaların çevreye karşı sorumlu ve kaynak açısından verimli bir şekilde tasarlanması, inşa edilmesi ve yönetilmesini hedeflemekteyiz.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	NED	Exact match	İstanbul, TürkiyeHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “nED, 2018 yılında temellerini atmış, bina mekanik tesisat sistemlerinin tasarımını enerji verimliliği ile birleştirmeyi amaçlamış, 2022'de Pasif Ev tasarımları için sertifikasını…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Gkmc Construction And Consultancy INC	Exact match	Istanbul, TürkiyeHQ recorded Sep 17, 2026	1-10	1 contacts →
	Exact match “GKMC Construction and Consultancy Inc, is the first Turkish-Japanese equal joint-stock construction company operating in the Turkish retrofitting sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Proefekt Mühendi̇sli̇k Danişmanlik San. VE Ti̇c. Ltd. Şti̇	Exact match	Yeniköy Sarıyer, TürkiyeHQ recorded Sep 17, 2026	1-10	1 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 · Sep 17, 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 “retrofit contractors”. 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 12 of 85 retrofit contractors based in Türkiye

See the full list, filter by size, metro and specialty, and access 25 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Retrofit contractors based in Türkiye at a glance

As of Sep 17, 2026

7.1%Verified-email coverage

4.2Average contacts per company

1-10Median size (employees)

18.8%Largest-city concentration · Istanbul

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 85 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 “retrofit contractors” 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 25 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 September 17, 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 “retrofit contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many retrofit contractors are there based in Türkiye?

RevenueBase identified 85 company matches for retrofit contractors associated with Türkiye as of September 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?

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

Which city has the most retrofit contractors?

Istanbul leads with 16 company records, followed by Izmir (6) and Ankara (5).

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 25 professional contacts with verified work emails tracked across these 85 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 September 17, 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.