Company lists · Data refreshed November 2026

Top 25 Systems engineering firms based in Türkiye

RevenueBase identified 517 company matches for systems engineering firms associated with Türkiye as of November 2026 and tracks 7,352 professional contacts across them, including 1,034 with verified work emails. Istanbul is the largest hub.

This list covers company matches for systems engineering firms 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
517Companies
7,352Contacts tracked
1,034Verified emails
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The 25 largest systems engineering firms based in Türkiye

Ranked by team size
Top 25 of 517 company matches for systems engineering firms 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 matchAnkara, TürkiyeHQ recorded Nov 6, 2026501-1,0001,423 contacts →

Exact match

“STM Savunma Teknolojileri Mühendislik ve Ticaret A.Ş.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202610001+1,130 contacts →

Exact match

“Mapa Group has emerged as a global leader in the engineering and construction industry, now spanning three continents.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchBesiktas, TürkiyeHQ recorded Nov 6, 2026201-500355 contacts →

Exact match

“Sigma olarak inşaat sektöründeki 30 yılı aşkın tecrübemiz ve çözüm odaklı yaklaşımımızla Türkiye'nin en güvenilir mühendislik ve danışmanlık firmaları arasında yer alıyoruz.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAnkara, TürkiyeHQ recorded Nov 6, 2026201-500333 contacts →

Exact match

“ANOVA Ar-Ge Teknolojileri, mekanik, elektronik ve gömülü yazılım tasarımı, analiz/simülasyon, üretim, test ve entegrasyon yetkinliklerine sahip,%100 yerli sermayeli bir teknoloji…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAnkara, TürkiyeHQ recorded Nov 6, 2026201-500198 contacts →

Exact match

“Founded in 1985, Prota Engineering is a pioneering design firm with a global footprint, having executed over projects spanning across 25 countries, having offices in Turkey…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchÇankaya Mahallesi, TürkiyeHQ recorded Nov 6, 2026201-500121 contacts →

Exact match

“MCSistem elektromekanik sistem entegrasyonu yapan bir kuruluştur.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchUmitkoy, TürkiyeHQ recorded Nov 6, 2026201-500116 contacts →

Exact match

“MEGA Engineering Consulting Inc, established in 1993, is a multidisciplinary firm that provides engineering, design, construction supervision and project management services for a…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202651-200114 contacts →

Exact match

“Ekinoks-AG, savunma sanayii projelerinde ihtiyaç duyulan ileri mühendislik hizmetlerini vermek üzere sektörde 15 yılı aşkın tecrübeye sahip mühendisler tarafından 16 Nisan 2012…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchKadikoy, TürkiyeHQ recorded Nov 6, 202651-200109 contacts →

Exact match

“Infonal is a technology services and IT consultancy company providing deeply enterprise software architecture and domain specific know how.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchÇayırova, TürkiyeHQ recorded Nov 6, 2026201-500105 contacts →

Exact match

“HEXAGON STUDIO is a Turkish company established to give design and engineering services in Mobility and Defense Industries, for both OEM's and Suppliers in local and international…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 2026201-50087 contacts →

Exact match

“MCA Yapı, 2010 yılında mekanik ve elektrik sistemlerde yüksek kaliteli mühendislik çözümleri sunmak amacıyla kurulmuştur.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 20261,001-5,00061 contacts →

Exact match

“Green Holding, gelişen teknolojik ihtiyaçları profesyonel bir çerçevede karşılama hedefiyle, 2007 yılında yüzde yüz yerli sermaye ile kurulmuştur.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchGölbaşı, TürkiyeHQ recorded Nov 6, 202651-20058 contacts →

Exact match

“USTUNOVA Engineering and R&D is a distinguished engineering and software company with over a decade of proven excellence in advanced technologies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202651-20053 contacts →

Exact match

“Omega Mühendislik, 1994 yılında girişimci Öner Çelebi tarafından kurulan, elektrik taahhüt sektöründe, proje, uygulama ve teknik danışmanlık alanlarında hizmet veren, alçak…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“Ulaşım Planlaması, Raylı Sistem Mühendisliği, Ulaştırma ve Trafik Mühendisliği, Karayolu ve Sanat Yapıları Mühendisliği ile Müşavirlik ve Danışmanlık Hizmetleri”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchBursa, TürkiyeHQ recorded Nov 6, 202651-20045 contacts →

Exact match

“Our Services Professional Engineering Industrial Safety Repair and Field Service Commissioning System Integration Power Services”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202651-20044 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 2026201-50043 contacts →

Exact match

“Founded in 1991 in Istanbul, AYTES Mühendislik has developed in the field of electromechanical engineering in parallel with the construction sector, which is the largest sector in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5041 contacts →

Exact match

“Consolidating skill specific wealth of industrial expertise on electrical engineering, project management and bringing together experienced engineers and technicians with careers…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchİzmir, TürkiyeHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“1976 yılında İstanbul Devlet Mimarlık Akademisinin Elektrik bölümünden mezun olmuş olan Namık ONMUŞ çeşitli ortaklıklar yaparak serbest olarak çalışmaya başlamıştır.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“AGM Mühendislik 1993 yılında Ankara'da kurulmuştur.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“TEM is a consulting engineering company providing civil, structural engineering, architectural design, infrastructural engineering, mechanical engineering, electrical engineering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“AAES is an international engineering firm focused on the providing advanced engineering services such as design, manufacturing and after sales services to the clients in…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202651-20028 contacts →

Exact match

“Yuksel Domanic Engineering Limited has been a leading engineering design and consulting company in the field of highway and railway since in 1986 in Ankara - Turkey.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“Firmamız, 1990 yılında mühendislik hizmeti vermek ve kendi tasarımı mühendislik ürünlerini üretmek amacıyla kurulmuştur.”

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

Showing 25 of 517 systems engineering firms based in Türkiye

See the full list, filter by size, metro and specialty, and access 1,034 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Systems engineering firms based in Türkiye at a glance

As of Nov 6, 2026
14.1%Verified-email coverage
14.2Average contacts per company
1-10Median size (employees)
20.3%Largest-city concentration · Istanbul
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
262
11-50
192
51-200
39
201-500
21
501-1,000
1
1,001-5,000
1
10001+
1

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 517 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 “systems engineering firms” 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 1,034 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 “systems engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many systems engineering firms are there based in Türkiye?

RevenueBase identified 517 company matches for systems engineering firms 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?

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

Which city has the most systems engineering firms?

Istanbul leads with 105 company records, followed by Ankara (77) and Cankaya (28).

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 1,034 professional contacts with verified work emails tracked across these 517 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.

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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.