Company lists · Data refreshed November 2026

Top 21 Oil refinery builders based in Türkiye

RevenueBase identified 93 company matches for oil refinery builders associated with Türkiye as of November 2026 and tracks 5,507 professional contacts across them, including 798 with verified work emails. Istanbul is the largest hub.

This list covers company matches for oil refinery builders 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
93Companies
5,507Contacts tracked
798Verified emails
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The 21 largest oil refinery builders based in Türkiye

Ranked by team size
Top 21 of 93 company matches for oil refinery builders 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 matchIstanbul, TürkiyeHQ recorded Nov 6, 202610001+1,510 contacts →

Exact match

“Rönesans Endüstri Tesisleri specializes in construction services and EPC in Hydrocarbons, Power, Metallurgy & Mining and Process Plants sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202610001+1,005 contacts →

Exact match

“GAMA HOLDING A.Ş.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 20261,001-5,000369 contacts →

Exact match

“Headquartered in Istanbul / Turkey, Teknokon Group is a multi-disciplinary organization serving its clientele with a full range of engineering, procurement and construction for…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAnkara, TürkiyeHQ recorded Nov 6, 20265,001-10,000322 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLütfen Seçiniz, TürkiyeHQ recorded Nov 6, 2026501-1,000297 contacts →

Exact match

“HAVATEK is one of the leading fabrication and construction company in Turkiye specialized in Oil & Gas, Petrochemical and Energy Industries, performing projects in Turkiye and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 20261,001-5,000257 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 2026501-1,000180 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchKocaeli̇, TürkiyeHQ recorded Nov 6, 2026501-1,000144 contacts →

Exact match

“Teknik Montaj Endüstri Tesisleri İmalat ve Montaj San.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBesiktas, TürkiyeHQ recorded Nov 6, 202610001+135 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchÇankaya, TürkiyeHQ recorded Nov 6, 202651-20091 contacts →

Exact match

“Stadia Engineering and Consultancy was established in 2018.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSöğütlü, TürkiyeHQ recorded Nov 6, 202651-20071 contacts →

Exact match

“Vespro is an international engineering & fabrication company supporting the realization of chemical plants across the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBornova, TürkiyeHQ recorded Nov 6, 202611-5064 contacts →

Exact match

“At A Glance;* Oil & Gas Engineering Company,* Managed by Practicing Refinery Engineers,* Engineering Expertise that Minimizes Cost & Improves Process,* Over 100 Total Project…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAtaşehir, TürkiyeHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“HUM Companies build turnkey plants and plant units with its own engineering at the edible oil sector worldwide, manufactures the machines and systems used at oilseeds crushing and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 2026501-1,00032 contacts →

Exact match

“Enertech, 2020 yılında faaliyetlerine başlamıştır.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchPendik, TürkiyeHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“DETA, endüstriyel yapılarda izolasyon, iskele, mekanik montaj ve boya-kumlama hizmetleri konusunda uzmanlaşmış ve müşterilerine anahtar teslim çözümler sunan bir kuruluştur.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“Çalık Proje Mühendislik; Enerji, Petrol, Gaz ve Endüstri piyasalarında yer alan çeşitli firmalar – yükleniciler, işverenler ve finans kuruluşlarına 22 yıldır hizmet veren bir…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchKartepe, TürkiyeHQ recorded Nov 6, 2026201-50017 contacts →

Exact match

“Design & engineering, procurement & logistics, fabrication, construction, and commissioning for various industries”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchKocaeli, TürkiyeHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“iSystems Industries, a member of Akfel Commodities, is a group of companies that has been providing manufacturing, procurement, engineering, construction and project management…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-507 contacts →

Exact match

“EPCont Industrial Contracting and Engineering Company is your go-to expert for industrial process plants.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBeykoz, TürkiyeHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Driving Innovative Solutions”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAnkara, TürkiyeHQ recorded Nov 6, 20261-103 contacts →

Exact match

“PetroNG offers a fully integrated engineering, procurement and construction solutions as a system integrator for oil and gas facilities, power plants, petrochemical plants, LNG…”

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

Showing 21 of 93 oil refinery builders based in Türkiye

See the full list, filter by size, metro and specialty, and access 798 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil refinery builders based in Türkiye at a glance

As of Nov 6, 2026
14.5%Verified-email coverage
59.2Average contacts per company
51-200Median size (employees)
20.4%Largest-city concentration · Istanbul
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
28
51-200
19
201-500
12
501-1,000
6
1,001-5,000
5
5,001-10,000
2
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 93 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 “oil refinery builders” 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 798 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 “oil refinery builders”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil refinery builders are there based in Türkiye?

RevenueBase identified 93 company matches for oil refinery builders 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?

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

Which city has the most oil refinery builders?

Istanbul leads with 19 company records, followed by Ankara (13) and Izmir (7).

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 798 professional contacts with verified work emails tracked across these 93 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.

Ready to reach these companies? Verified emails and direct dials for all 93 oil refinery builders based in Türkiye. Start with a free account, no credit card.

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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.