Company lists · Data refreshed September 2026

Top 25 Systems engineering consultants based in Türkiye

Name: Systems engineering consultants based in Türkiye
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 464 companies tracked

RevenueBase identified 464 systems engineering consultants headquartered in Türkiye as of September 2026 and tracks 5,318 professional contacts across them, including 574 with verified work emails. Ankara is the largest hub.

This list covers systems engineering consultants 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 18, 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 18, 2026 86% judged on-target in blind review

464Companies

5,318Contacts tracked

574Verified emails

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The 25 largest systems engineering consultants based in Türkiye

Ranked by team size

Top 25 of 464 systems engineering consultants based in Türkiye, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to systems engineering consultants: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Emay International Engineering And Consultancy INC	Strong evidence	Üsküdar, TürkiyeHQ checked Sep 18, 2026	1,001-5,000	641 contacts →
	Strong evidence “EMAY International Engineering and Consultancy Inc, established in 1980, is one of the leading engineering and technical consultancy companies in Turkey.” Source: RevenueBase Database · checked Sep 18, 2026
2	SIGMA	Indirect evidence	Besiktas, TürkiyeHQ checked Sep 18, 2026	201-500	330 contacts →
	Indirect evidence “Sigma olarak inşaat sektöründeki 30 yılı aşkın tecrübemiz ve çözüm odaklı yaklaşımımızla Türkiye'nin en güvenilir mühendislik ve danışmanlık firmaları arasında yer alıyoruz.” Source: RevenueBase Database · checked Sep 18, 2026
3	Anova Ar-Ge Teknolojileri	Indirect evidence	Ankara, TürkiyeHQ checked Sep 18, 2026	201-500	305 contacts →
	Indirect evidence “ANOVA Ar-Ge Teknolojileri, mekanik, elektronik ve gömülü yazılım tasarımı, analiz/simülasyon, üretim, test ve entegrasyon yetkinliklerine sahip,%100 yerli sermayeli bir teknoloji…” Source: RevenueBase Database · checked Sep 18, 2026
4	Koltek Consulting CO	Partial evidence	Ankara, TürkiyeHQ checked Sep 18, 2026	501-1,000	253 contacts →
	Partial evidence “Established in 1988, KOLTEK is a technical consulting firm that offers multidisciplinary engineering services locally and abroad.” Source: RevenueBase Database · checked Sep 18, 2026
5	Ekinoks-Ag Savunma	Indirect evidence	Ankara, TürkiyeHQ checked Sep 18, 2026	51-200	109 contacts →
	Indirect evidence “Ekinoks-AG, savunma sanayii projelerinde ihtiyaç duyulan ileri mühendislik hizmetlerini vermek üzere sektörde 15 yılı aşkın tecrübeye sahip mühendisler tarafından 16 Nisan 2012…” Source: RevenueBase Database · checked Sep 18, 2026
6	MC Sistem	Indirect evidence	Çankaya Mahallesi, TürkiyeHQ checked Sep 18, 2026	201-500	101 contacts →
	Indirect evidence “MCSistem elektromekanik sistem entegrasyonu yapan bir kuruluştur.” Source: RevenueBase Database · checked Sep 18, 2026
7	Rotafilo	Indirect evidence	Eskişehir, TürkiyeHQ checked Sep 18, 2026	51-200	92 contacts →
	Indirect evidence “We are a team united to make a difference and bring new ideas, innovation and hands on solutions to the global business arena.” Source: RevenueBase Database · checked Sep 18, 2026
8	MCA Yapi	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 18, 2026	201-500	77 contacts →
	Indirect evidence “MCA Yapı, 2010 yılında mekanik ve elektrik sistemlerde yüksek kaliteli mühendislik çözümleri sunmak amacıyla kurulmuştur.” Source: RevenueBase Database · checked Sep 18, 2026
9	Proven Technologies	Indirect evidence	Ankara, TürkiyeHQ checked Sep 18, 2026	51-200	67 contacts →
	Indirect evidence “Proven Technologies \| Proven Bilişim Teknolojileri A.Ş.” Source: RevenueBase Database · checked Sep 18, 2026
10	Üstünova Mühendi̇sli̇k VE Arge	Partial evidence	Gölbaşı, TürkiyeHQ checked Sep 18, 2026	51-200	57 contacts →
	Partial evidence “USTUNOVA Engineering and R&D is a distinguished engineering and software company with over a decade of proven excellence in advanced technologies.” Source: RevenueBase Database · checked Sep 18, 2026
11	Boğaziçi Proje Mühendislik A.Ş	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 18, 2026	51-200	44 contacts →
	Indirect evidence “Ulaşım Planlaması, Raylı Sistem Mühendisliği, Ulaştırma ve Trafik Mühendisliği, Karayolu ve Sanat Yapıları Mühendisliği ile Müşavirlik ve Danışmanlık Hizmetleri” Source: RevenueBase Database · checked Sep 18, 2026
12	EFK Engineering	Partial evidence	Çankaya, TürkiyeHQ checked Sep 18, 2026	51-200	44 contacts →
	Partial evidence “EFK Engineering is an engineering and design company established in 2004 in Ankara, Turkey.” Source: RevenueBase Database · checked Sep 18, 2026
13	Kuasar Marin Engineering INC	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 18, 2026	51-200	42 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026
14	Quad Plus Otomasyon	Strong evidence	Bursa, TürkiyeHQ checked Sep 18, 2026	51-200	41 contacts →
	Strong evidence “Our Services Professional Engineering Industrial Safety Repair and Field Service Commissioning System Integration Power Services” Source: RevenueBase Database · checked Sep 18, 2026
15	Onmuş Elektrik Sanayi VE Ticaret A.Ş	Indirect evidence	İzmir, TürkiyeHQ checked Sep 18, 2026	51-200	35 contacts →
	Indirect evidence “1976 yılında İstanbul Devlet Mimarlık Akademisinin Elektrik bölümünden mezun olmuş olan Namık ONMUŞ çeşitli ortaklıklar yaparak serbest olarak çalışmaya başlamıştır.” Source: RevenueBase Database · checked Sep 18, 2026
16	AGM Mühendislik	Indirect evidence	Ankara, TürkiyeHQ checked Sep 18, 2026	11-50	31 contacts →
	Indirect evidence “AGM Mühendislik 1993 yılında Ankara'da kurulmuştur.” Source: RevenueBase Database · checked Sep 18, 2026
17	RMC Mühendislik	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 18, 2026	11-50	29 contacts →
	Indirect evidence “Firmamız, 1990 yılında mühendislik hizmeti vermek ve kendi tasarımı mühendislik ürünlerini üretmek amacıyla kurulmuştur.” Source: RevenueBase Database · checked Sep 18, 2026
18	Advens Engineering	Indirect evidence	Istanbul, TürkiyeHQ checked Sep 18, 2026	11-50	27 contacts →
	Indirect evidence “Advens Mühendislik A.Ş, Türkiye’nin önemli teknoloji üslerinden biri olan Teknopark İstanbul’da, tesis güvenlik sertifikalı ofisinde tüm çalışmalarını büyük bir gizlilik ve…” Source: RevenueBase Database · checked Sep 18, 2026
19	Ulus Mühendi̇sli̇k	Indirect evidence	Maltepe, TürkiyeHQ checked Sep 18, 2026	11-50	26 contacts →
	Indirect evidence “Ulus Mühendislik Olarak, ÇEVRE DANIŞMANLIĞI' nda Uzman Mühendis Kadrolarımızla Hizmet Sunmaktayız.” Source: RevenueBase Database · checked Sep 18, 2026
20	BTB Arge VE Mühendislik Çözümleri	Indirect evidence	Ankara, TürkiyeHQ checked Sep 18, 2026	11-50	24 contacts →
	Indirect evidence “2013 yılında BTB Proje Yönetimi ve Mühendislik Ltd.” Source: RevenueBase Database · checked Sep 18, 2026
21	Akar Rulman	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 18, 2026	11-50	24 contacts →
	Indirect evidence “Industry-Leading Expertise in Precision Bearings.” Source: RevenueBase Database · checked Sep 18, 2026
22	Erdemli Proje VE Müşavirlik	Partial evidence	Akaretler, TürkiyeHQ checked Sep 18, 2026	11-50	24 contacts →
	Partial evidence “Erdemli Engineering and Consulting has a vivid experience of 50 years in the field of civil-structural design and is one of the pioneering Consulting – Engineering companies of…” Source: RevenueBase Database · checked Sep 18, 2026
23	AAES	Partial evidence	Ankara, TürkiyeHQ checked Sep 18, 2026	11-50	24 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 18, 2026
24	Promota Mühendi̇sli̇k VE Müşavi̇rli̇k AŞ	Indirect evidence	Ankara, TürkiyeHQ checked Sep 18, 2026	11-50	21 contacts →
	Indirect evidence “PROMOTA her biri kendi alanında 20 yıl üzerinde mühendislik tasarımları, müşavirlik ve inşaat yönetimi alanlarında gösterdiği performans ve geliştirdiği projeler ile uzmanlaşmış…” Source: RevenueBase Database · checked Sep 18, 2026
25	İndes Engineering INC	Partial evidence	Ankara, TürkiyeHQ checked Sep 18, 2026	11-50	20 contacts →
	Partial evidence “INDES Engineering is an engineering company that provides turnkey design, manufacturing, installation and assembly / integration solutions using tools with high quality and…” Source: RevenueBase Database · checked Sep 18, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: systems engineering consultants. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names systems engineering consultants.
Partial evidence: Its own public description names part of systems engineering consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name systems engineering consultants. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 464 systems engineering consultants based in Türkiye

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Systems engineering consultants based in Türkiye at a glance

As of Sep 18, 2026

10.8%Verified-email coverage

11.5Average contacts per company

1-10Median size (employees)

17.9%Largest-city concentration · Ankara

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

258

11-50

150

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 464 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 systems engineering consultants, 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 “systems engineering consultants”. 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 systems engineering consultants), 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 systems engineering consultants, 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, 574 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 18, 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.

Systems engineering consultants by metro

Systems engineering consultants in Ankara83
Systems engineering consultants in Istanbul81
Systems engineering consultants in Cankaya30

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 systems engineering consultants, 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 systems engineering consultants are there based in Türkiye?

RevenueBase identified 464 systems engineering consultants 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?

Emay International Engineering And Consultancy INC, headquartered in Uskudar, tops this list with the largest team on record.

Which city has the most systems engineering consultants?

Ankara leads with 83 headquartered companies, followed by Istanbul (81) and Cankaya (30).

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 574 verified decision-maker contacts tracked across these 464 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 18, 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.