Company lists · Data refreshed September 2026

Top 25 Energy infrastructure contractors based in Türkiye

RevenueBase identified 487 energy infrastructure contractors headquartered in Türkiye as of September 2026 and tracks 12,912 professional contacts across them, including 1,590 with verified work emails. Ankara is the largest hub.

This list covers energy infrastructure contractors headquartered in Türkiye, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
487Companies
12,912Contacts tracked
1,590Verified emails
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The 25 largest energy infrastructure contractors based in Türkiye

Ranked by team size
Top 25 of 487 energy infrastructure contractors based in Türkiye, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceİstanbul, TürkiyeHQ checked Sep 16, 202610001+1,542 contacts →

Partial evidence

“Founded in 1998, Çalık Enerji is a leading international energy company with a strong track record in delivering integrated, turn-key contracting projects across Europe, Central…”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceAnkara, TürkiyeHQ checked Sep 16, 20265,001-10,0001,046 contacts →

Partial evidence

“GÜLERMAK, since its establishment, has been a top leading international EPC contractor known for its excellent reputation and professionalism.”

Source: RevenueBase Database · checked Sep 16, 2026
3Indirect evidenceAnkara, TürkiyeHQ checked Sep 16, 202610001+924 contacts →

Indirect evidence

“GAMA HOLDING A.Ş.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceÇankaya / Ankara, TürkiyeHQ checked Sep 16, 20265,001-10,000818 contacts →

Indirect evidence

“Renaissance Construction was founded in St.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceIstanbul, TürkiyeHQ checked Sep 16, 20265,001-10,000516 contacts →

Indirect evidence

“NUROL CONSTRUCTION AND TRADING CO.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceAnkara, TürkiyeHQ checked Sep 16, 20265,001-10,000475 contacts →

Indirect evidence

“Fernas is a Turkey based company currentlyFounded in 1982, Fernas Construction is the Group's locomotive company.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceAnkara, TürkiyeHQ checked Sep 16, 20265,001-10,000312 contacts →

Partial evidence

“EKON is a leading engineering & construction company for establishing infrastructure and integrated industrial projects from the planning and design stages, through engineering…”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceIstanbul, TürkiyeHQ checked Sep 16, 20261,001-5,000216 contacts →

Indirect evidence

“Welcome to DEHA TECH Engineering & Contracting Group We provide engineering and contracting services all around the world with our experienced team.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceUskudar, TürkiyeHQ checked Sep 16, 2026501-1,000178 contacts →

Indirect evidence

“Berksan was established in 1998 to provide engineering and construction services for national and international projects.”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceİstanbul, TürkiyeHQ checked Sep 16, 2026501-1,000177 contacts →

Indirect evidence

“Alkataş İnşaat is a construction company based out of Ertürk sokak no:1 k1 plaza kavacık, Beykoz/İstanbul, Turkey.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceAnkara, TürkiyeHQ checked Sep 16, 202651-200145 contacts →

Partial evidence

“We as MRC Türkiye provide engineering and advisory services within all aspects of Energy and Utility business (Distribution, Transmission, Generation and Energy Markets) and over…”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceIstanbul, TürkiyeHQ checked Sep 16, 2026501-1,000145 contacts →

Indirect evidence

“27 Yıldır Güveninizle Büyüyoruz!”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceİstanbul, TürkiyeHQ checked Sep 16, 2026501-1,000120 contacts →

Partial evidence

“ViTO Energy Engineering and Construction is an integrated EPC services provider for industrial projects.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceBesiktas, TürkiyeHQ checked Sep 16, 202610001+107 contacts →

Indirect evidence

“ENKA is a global engineering and construction firm headquartered in Istanbul, Turkey.”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceAnkara, TürkiyeHQ checked Sep 16, 20261,001-5,000102 contacts →

Partial evidence

“Tefirom is a global construction and energy company headquartered in Ankara, Türkiye, specializing in large-scale projects across construction, engineering and energy sectors.”

Source: RevenueBase Database · checked Sep 16, 2026
16Partial evidenceİstanbul, TürkiyeHQ checked Sep 16, 202651-20093 contacts →

Partial evidence

“YILDIRIM Group first entered the energy industry in 2010.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceAnkara, TürkiyeHQ checked Sep 16, 20261,001-5,00093 contacts →

Indirect evidence

“Supported by its 60+ years of experience and vision focused on the future, HGG has been delivering general contracting services in various fields of construction and renewable…”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceAnkara, TürkiyeHQ checked Sep 16, 20261,001-5,00076 contacts →

Indirect evidence

“VEMAK is a construction company based on Ankara, TURKEY”

Source: RevenueBase Database · checked Sep 16, 2026
19Partial evidenceIstanbul, TürkiyeHQ checked Sep 16, 202651-20075 contacts →

Partial evidence

“AK-AY® ELEKTRIK is a global first-class Electrical EPC contractor and electromechanical manufacturer that takes a unique approach to delivering electricity transmission and…”

Source: RevenueBase Database · checked Sep 16, 2026
20Partial evidenceAtasehir, TürkiyeHQ checked Sep 16, 202651-20067 contacts →

Partial evidence

“The Joule Energy's main activities are the installation, maintenance, engineering services and spare parts supply of Power Plants, Rafineries & Industries Plants."Joule Energy"…”

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidenceÇankaya, TürkiyeHQ checked Sep 16, 2026501-1,00060 contacts →

Partial evidence

“Ataseven, whose headquarters is based in Ankara, is a long-established company operating in 3 main sectors, namely energy, construction and electricity trade, and standing for 33…”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceSelçuklu, TürkiyeHQ checked Sep 16, 2026201-50058 contacts →

Indirect evidence

“1967'de Mehmet Biberci tarafından kurulan Biberci İnşaat, 1996 yılında kurumsallaşma çalışmalarına hız vererek şirketlerinin sayısını arttırmış ve faaliyet alanlarını…”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceAnkara, TürkiyeHQ checked Sep 16, 2026501-1,00056 contacts →

Indirect evidence

“EFOR Ltd was established in 1998 in Ankara, Turkey as a foreign trade company specializing on materials and equipment utilized in power plants.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceİstanbul, TürkiyeHQ checked Sep 16, 202651-20052 contacts →

Indirect evidence

“Aksoylar Mühendislik, endüstriyel tesisler için komple kuruluma dayalı bir taahhüt firmasıdır.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceİzmir, TürkiyeHQ checked Sep 16, 202611-5043 contacts →

Partial evidence

“HESATEKNİK dönemin gelişmiş ve verimli teknoloji altyapılarını kullanarak, geleceğin endüstriyel ve enerji üretim tesislerini müşterilerine anahtar teslimi sunmayı, kesintisiz…”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 487 energy infrastructure contractors based in Türkiye

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Energy infrastructure contractors based in Türkiye at a glance

As of Sep 16, 2026
12.3%Verified-email coverage
26.5Average contacts per company
11-50Median size (employees)
15.4%Largest-city concentration · Ankara
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
134
11-50
173
51-200
103
201-500
33
501-1,000
20
1,001-5,000
14
5,001-10,000
6
10001+
3

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 487 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among energy infrastructure contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Türkiye whose own description of what they do matches “energy infrastructure contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names energy infrastructure contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among energy infrastructure contractors, and records with no verified work email. Companies headquartered outside Türkiye are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 1,590 across the full list. 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 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Energy infrastructure contractors by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names energy infrastructure contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many energy infrastructure contractors are there based in Türkiye?

RevenueBase identified 487 energy infrastructure contractors headquartered in Türkiye as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Çalık Enerji, headquartered in Istanbul, tops this list with the largest team on record.

Which city has the most energy infrastructure contractors?

Ankara leads with 75 headquartered companies, followed by Istanbul (62) and Cankaya (25).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,590 verified decision-maker contacts tracked across these 487 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 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 Smart Search, 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.