Company lists · Data refreshed October 2026

Top 22 Transformer maintenance contractors based in Türkiye

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

Compiled by the RevenueBase Data Team Data refreshed Oct 22, 2026 172 companies tracked

RevenueBase identified 172 company matches for transformer maintenance contractors associated with Türkiye as of October 2026 and tracks 2,206 professional contacts across them, including 497 with verified work emails. Istanbul is the largest hub.

This list covers company matches for transformer maintenance 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 October 22, 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 22, 2026 How this list was built

172Companies

2,206Contacts tracked

497Verified emails

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The 22 largest transformer maintenance contractors based in Türkiye

Ranked by team size

Top 22 of 172 company matches for transformer maintenance contractors based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 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	Best Transformer	Exact match	Balıkesir, TürkiyeHQ recorded Oct 22, 2026	1,001-5,000	780 contacts →
	Exact match “BEST Transformer, founded in 1966 in Balıkesir, produces oil-immersed distribution transformers, power transformers, cast resin dry-type transformers, reactors, and mechanical…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2	Proterm Enerji	Exact match	Ankara, TürkiyeHQ recorded Oct 22, 2026	201-500	108 contacts →
	Exact match “Proterm Energy was founded by Mr.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
3	SEM Transformator INC	Exact match	Ankara, TürkiyeHQ recorded Oct 22, 2026	201-500	96 contacts →
	Exact match “Sem Transformator started activities and manufacturing transformers in 1980.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
4	Toreks Enerji̇ VE Teknoloji̇ Hi̇zmetleri̇	Exact match	İstanbul, TürkiyeHQ recorded Oct 22, 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 22, 2026 · View company records in RevenueBase
5	Tkey Global	Exact match	Cayirova, TürkiyeHQ recorded Oct 22, 2026	11-50	46 contacts →
	Exact match “TKey Global olarak faaliyet gösterdiğimiz sektörlerde kalite ve memnuniyeti hedef alarak elektrik sistemlerinin kurulumu, devreye alınması, testleri ve bakım çalışmalarını…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
6	Alternans	Exact match	Kocaeli, TürkiyeHQ recorded Oct 22, 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 22, 2026 · View company records in RevenueBase
7	Transfomax	Exact match	Şanliurfa, TürkiyeHQ recorded Oct 22, 2026	51-200	29 contacts →
	Exact match “The company was founded in Şanlıurfa in 2006, in order to operate in domains of electricity, engineering, consultancy, and commitment.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
8	Traser Electromechanical Services	Exact match	Istanbul, TürkiyeHQ recorded Oct 22, 2026	11-50	27 contacts →
	Exact match “TRASER Transformer Service Electromechanical Maintenance San.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9	Tesla Elektrik	Exact match	Beylikdüzü, TürkiyeHQ recorded Oct 22, 2026	201-500	25 contacts →
	Exact match “Tesla Elektrik; Elektrik Proje Hizmetleri, Elektrik Taahhüt Hizmetleri, Trafo İşletme Sorumluluğu ve Bakım Hizmetleri, Akıllı Ev Sistemleri, Topraklama Ölçüm ve Raporlama…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10	Dugan Technology Solutions	Exact match	Sakarya, TürkiyeHQ recorded Oct 22, 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 22, 2026 · View company records in RevenueBase
11	Asya Trafo Otomasyon LTD	Exact match	İstanbul, TürkiyeHQ recorded Oct 22, 2026	11-50	15 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12	MTE A.Ş	Exact match	Yenimahalle, TürkiyeHQ recorded Oct 22, 2026	11-50	12 contacts →
	Exact match “MTE Energy Systems Services A.Ş.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13	AEM Akgün Elektrik Mühendislik San. VE Tic. Ltd. ŞTI	Exact match	Aliağa, TürkiyeHQ recorded Oct 22, 2026	11-50	11 contacts →
	Exact match “Güzel bir gelecek için çalışıyoruz!” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14	Mogeser Electric Motors	Exact match	İstanbul, TürkiyeHQ recorded Oct 22, 2026	11-50	11 contacts →
	Exact match “Her marka ve ebatta AC, DC,SERVO ve TORK motorların bakım/onarımlarında zengin donanımlar, güçlü mühendislik kadrosu ve uzun yıllar tecrübeli edinmiş nitelikli ekibimizle hizmet…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15	Birsoy Mühendislik	Exact match	Kocaeli, TürkiyeHQ recorded Oct 22, 2026	51-200	10 contacts →
	Exact match “Yüksek gerilim (y.g.), orta gerilim(o.g.), alçak gerilim(a.g.), enerji nakil hattı(e.n.h.), fabrika elektrik kuvvetli ve zayıf akım tesisat işleri,(kamera, güvenlik, yangın, data…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16	Consultra	Exact match	Kadıköy, TürkiyeHQ recorded Oct 22, 2026	11-50	9 contacts →
	Exact match “Consultra Turkey operates as a consulting and trading company in the areas of HV power transformer pumps(Inline and End-Suction Pumps), Coolers(for OFAF, OFWF Type Transformers)…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17	Tempek DIŞ Ti̇caret	Exact match	Pendik, TürkiyeHQ recorded Oct 22, 2026	1-10	8 contacts →
	Exact match “Tempek Dış Ticaret transformatör ekipmanları ve koruma cihazlarının temini konusunda hizmet vermektedir.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
18	Ozgen Elektrik	Exact match	Ankara, TürkiyeHQ recorded Oct 22, 2026	51-200	8 contacts →
	Exact match “Ozgen was founded in Ankara in 1964.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19	Aren Power	Exact match	Ankara, TürkiyeHQ recorded Oct 22, 2026	201-500	5 contacts →
	Exact match “AREN Power is a global energy solution partner built on strong industry expertise and international experience, backed by the strength of Astor Enerji.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
20	GÜÇ Transformatör Mühendislik San. VE Tic. A.Ş	Exact match	Kocaeli, TürkiyeHQ recorded Oct 22, 2026	11-50	4 contacts →
	Exact match “GÜÇ Check-Up Merkezi, güç transformatörleri, orta gerilim kesicileri ve enerji sistemlerinin test, bakım ve durum değerlendirme çalışmalarında uzmanlaşmış bir mühendislik…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21	SYG Power	Exact match	Tuzla, TürkiyeHQ recorded Oct 22, 2026	1-10	3 contacts →
	Exact match “SYG Power olarak Trafo bakım, onarım ve kurulum alanlarında çözüm üretmeye devam ediyoruz.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22	Arden Energy	Exact match	Bornova, TürkiyeHQ recorded Oct 22, 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 22, 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 “transformer maintenance 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 22 of 172 transformer maintenance contractors based in Türkiye

See the full list, filter by size, metro and specialty, and access 497 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transformer maintenance contractors based in Türkiye at a glance

As of Oct 22, 2026

22.5%Verified-email coverage

12.8Average contacts per company

11-50Median size (employees)

12.8%Largest-city concentration · Istanbul

Oct 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 172 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 “transformer maintenance 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 497 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 22, 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 “transformer maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transformer maintenance contractors are there based in Türkiye?

RevenueBase identified 172 company matches for transformer maintenance contractors 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?

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

Which city has the most transformer maintenance contractors?

Istanbul leads with 22 company records, followed by Ankara (10) and Kocaeli (8).

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 497 professional contacts with verified work emails tracked across these 172 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 22, 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.