Company lists · Data refreshed October 2026

Top 25 Energy facility maintenance companies based in Türkiye

Name: Energy facility maintenance companies based in Türkiye
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 142 companies tracked

RevenueBase identified 142 company matches for energy facility maintenance companies associated with Türkiye as of October 2026 and tracks 1,193 professional contacts across them, including 207 with verified work emails. Istanbul is the largest hub.

This list covers company matches for energy facility maintenance 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 October 12, 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 Oct 12, 2026 How this list was built

142Companies

1,193Contacts tracked

207Verified emails

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The 25 largest energy facility maintenance companies based in Türkiye

Ranked by team size

Top 25 of 142 company matches for energy facility maintenance companies based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	Proterm Enerji	Exact match	Ankara, TürkiyeHQ recorded Oct 12, 2026	201-500	108 contacts →
	Exact match “Proterm Energy was founded by Mr.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Proasist Teknik Hizmetler	Exact match	İstanbul, TürkiyeHQ recorded Oct 12, 2026	201-500	99 contacts →
	Exact match “Omega Grup’un, teknik arıza, bakım ve işletme yönetimi hizmetleri veren genç ve dinamik şirketlerinden biri.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Toreks Enerji̇ VE Teknoloji̇ Hi̇zmetleri̇	Exact match	İstanbul, TürkiyeHQ recorded Oct 12, 2026	201-500	81 contacts →
	Exact match “Toreks Elektrik, 2011 yılında elektrik, periyodik bakım ve servis hizmetleri vermek amacıyla kurulmuştur.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Joule Energy	Exact match	Atasehir, TürkiyeHQ recorded Oct 12, 2026	51-200	61 contacts →
	Exact match “The Joule Energy's main activities are the installation, maintenance, engineering services and spare parts supply of Power Plants, Rafineries & Industries Plants."Joule Energy"…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Ülke Energy	Exact match	İstanbul, TürkiyeHQ recorded Oct 12, 2026	51-200	55 contacts →
	Exact match “Founded in 2009, Ülke Energy is an O&M company based in Istanbul, Türkiye.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	Elkom Elektrik	Exact match	Bayrakli, TürkiyeHQ recorded Oct 12, 2026	51-200	39 contacts →
	Exact match “Elkom Elektrik olarak 33 yıl önce çıktığımız bu yolculukta anahtar teslim kurulum hizmetleri ile yüzlerce tesisi devreye almakla kalmamış aynı zamanda tesislerin sürekliliği için…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Alternans	Exact match	Kocaeli, TürkiyeHQ recorded Oct 12, 2026	11-50	34 contacts →
	Exact match “Firmamız, elektrik enerjisi üretimi, iletimi ve dağıtımı; enerji tesisleri ile alçak gerilim, orta gerilim ve yüksek gerilim şalt tesisleri, endüstriyel tesisler, enerji üretim…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Traser Electromechanical Services	Exact match	Istanbul, TürkiyeHQ recorded Oct 12, 2026	11-50	27 contacts →
	Exact match “TRASER Transformer Service Electromechanical Maintenance San.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Dugan Technology Solutions	Exact match	Sakarya, TürkiyeHQ recorded Oct 12, 2026	51-200	22 contacts →
	Exact match “DUGAN ENERGY is an accredited company according to the 17025 IEC quality system standards by Türkak.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Rest Enerji	Exact match	Denizli, TürkiyeHQ recorded Oct 12, 2026	11-50	15 contacts →
	Exact match “REST Enerji olarak kökleri güçlü genç bir şirketiz.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Susol Enerji	Exact match	Bursa, TürkiyeHQ recorded Oct 12, 2026	11-50	14 contacts →
	Exact match “2016 Yılında kurulan SUSOL, Lisanslı / Lisanssız Güneş Enerji Santrallerine İşveren Mühendisliği, Denetim ve Muayene hizmeti vermektedir.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	AEM Akgün Elektrik Mühendislik San. VE Tic. Ltd. ŞTI	Exact match	Aliağa, TürkiyeHQ recorded Oct 12, 2026	11-50	11 contacts →
	Exact match “Güzel bir gelecek için çalışıyoruz!” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Darma Enerji̇	Exact match	Bursa, TürkiyeHQ recorded Oct 12, 2026	11-50	11 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 · Oct 12, 2026 · View company records in RevenueBase
14	Geniaturkey	Exact match	Levent, TürkiyeHQ recorded Oct 12, 2026	1-10	11 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Ozgen Elektrik	Exact match	Ankara, TürkiyeHQ recorded Oct 12, 2026	51-200	8 contacts →
	Exact match “Ozgen was founded in Ankara in 1964.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Easymar LTD	Exact match	Istanbul, TürkiyeHQ recorded Oct 12, 2026	11-50	7 contacts →
	Exact match “With years of experience and a global Customer & Service network, we specialize in providing comprehensive Engine On-Site & Workshop Maintenance, 4-Stroke and 2-Stroke Engine…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	TAF Energy Solutions A.Ş	Exact match	İstanbul, TürkiyeHQ recorded Oct 12, 2026	11-50	7 contacts →
	Exact match “TAF Energy Solutions A.Ş is established to provide installation, commissioning, maintenance and consultancy services in Industrial Facilities and Energy Distribution Facilities.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	EN İS Mühendislik Taahhüt Ticaret Anonim Şirketi	Exact match	Yalova, TürkiyeHQ recorded Oct 12, 2026	11-50	6 contacts →
	Exact match “Alt yapi ve üst yapi elektri̇k proje ve müteahhi̇tli̇k hi̇zmetleri̇ (endüstri̇yel tesi̇sler, fabri̇kalar ve doğalgaz, bi̇ogaz, kömür, rüzgar ve güneş enerji̇si̇ne dayali elektri̇k…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Preco Power Service International	Exact match	Kocaeli, TürkiyeHQ recorded Oct 12, 2026	11-50	6 contacts →
	Exact match “We provide turnkey services for the power generation industry, petrochemical, refinery, industrial facilities and industries that produce their own energy as a goal.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Adven Mühendislik	Exact match	Eskişehir, TürkiyeHQ recorded Oct 12, 2026	11-50	4 contacts →
	Exact match “Enerji Sektöründe yetkin mühendislik hizmeti verme gayesinde olan firmamız kurulduğu günden bugüne sürekli değişen ve gelişen piyasayı yakından takip etmektedir.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Evergee Energy Engineering	Exact match	İstanbul, TürkiyeHQ recorded Oct 12, 2026	11-50	4 contacts →
	Exact match “EVERGEE \| Engineering Fuel Infrastructure for Critical Operations About Us EVERGEE is a global engineering company headquartered in Istanbul, with operational presence in Montreal…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	GK Enerji̇	Exact match	Kadıköy, TürkiyeHQ recorded Oct 12, 2026	1-10	4 contacts →
	Exact match “Ülkemizin sanayi gelişimine katkı sağlamaktan ve Türkiye’nin önde gelen Organize Sanayi Bölgeleri ve Sanayi Firmalarıyla omuz omuza çalışmaktan gurur duyuyoruz.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	11industry	Exact match	Istanbul, TürkiyeHQ recorded Oct 12, 2026	1-10	4 contacts →
	Exact match “11Industry renders a wide range of services; relocation of any kind of power plants & facilities, commissioning & operation of the whole plant and to design a project from “0”…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Opti̇mum A.Ş	Exact match	Izmir, TürkiyeHQ recorded Oct 12, 2026	51-200	3 contacts →
	Exact match “Optimum A.Ş.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Arden Energy	Exact match	Bornova, TürkiyeHQ recorded Oct 12, 2026	11-50	3 contacts →
	Exact match “Arden Energy is an engineering and solutions company delivering industrial power systems, rotating equipment solutions, automation, modernization and lifecycle services for…” Recorded in the RevenueBase company graph · Oct 12, 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 “energy facility maintenance companies”. 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 142 energy facility maintenance companies based in Türkiye

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Energy facility maintenance companies based in Türkiye at a glance

As of Oct 12, 2026

17.4%Verified-email coverage

8.4Average contacts per company

11-50Median size (employees)

19.7%Largest-city concentration · Istanbul

Oct 12, 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 142 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 facility maintenance 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 207 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 October 12, 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 “energy facility maintenance companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy facility maintenance companies are there based in Türkiye?

RevenueBase identified 142 company matches for energy facility maintenance companies associated with Türkiye as of October 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?

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

Which city has the most energy facility maintenance companies?

Istanbul leads with 28 company records, followed by Ankara (9) and Bursa (9).

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 207 professional contacts with verified work emails tracked across these 142 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 October 12, 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.