Company lists · Data refreshed November 2026

Top 13 Engineering companies based in Istanbul, Türkiye

This directory lists 1,223 engineering companies based in Istanbul, Türkiye, with 22,996 contacts and 3,069 email addresses. The list includes companies across engineering disciplines. Use it to identify potential suppliers, partners, and sales prospects as of November 2026. Across Türkiye, Istanbul is the largest hub for this category.

Engineering companies apply scientific, mathematical, and technical principles to design, develop, test, and manage products, systems, structures, or industrial processes. This list covers companies that provide engineering design, consulting, testing, project management, or related technical services. Ranked by team size, largest first. Data current as of November 6, 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 Nov 6, 2026 86% judged on-target in blind review
1,223Companies
22,996Contacts tracked
3,069Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 13 largest engineering companies based in Istanbul, Türkiye

Ranked by team size
Top 13 of 1,223 engineering companies based in Istanbul, Türkiye, ranked by team size, largest first. Data refreshed Nov 6, 2026. RevenueBase Smart Search rates how each company's information relates to engineering companies: 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
1Indirect evidenceIstanbul, TürkiyeHQ checked Nov 6, 202610001+1,510 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Nov 6, 2026
2Indirect evidenceIstanbul, TürkiyeHQ checked Nov 6, 202610001+819 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 6, 2026
3Indirect evidenceIstanbul, TürkiyeHQ checked Nov 6, 20261,001-5,000753 contacts →

Indirect evidence

“Rightfully regarded as one of Turkey's leading contractor firms, Makyol is active in the areas of: • Heavy construction & infrastructure (highways, airports, dams, tunnels…”

Source: RevenueBase Database · checked Nov 6, 2026
4Indirect evidenceIstanbul, TürkiyeHQ checked Nov 6, 20261,001-5,000634 contacts →

Indirect evidence

“Founded in Yamata Investment made a distinguished name in the international area with the construction activities all over the world.”

Source: RevenueBase Database · checked Nov 6, 2026
5Indirect evidenceIstanbul, TürkiyeHQ checked Nov 6, 20265,001-10,000573 contacts →

Indirect evidence

“NUROL CONSTRUCTION AND TRADING CO.”

Source: RevenueBase Database · checked Nov 6, 2026
6Strong evidenceIstanbul, TürkiyeHQ checked Nov 6, 20261,001-5,000369 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Nov 6, 2026
7Indirect evidenceIstanbul, TürkiyeHQ checked Nov 6, 20261,001-5,000282 contacts →

Indirect evidence

“BİRLEŞİM MÜHENDİSLİK established in year 2002, in İSTANBUL and achieved its present structure with the vast acceleration parallel to the present technologies and sector…”

Source: RevenueBase Database · checked Nov 6, 2026
8Indirect evidenceIstanbul, TürkiyeHQ checked Nov 6, 202651-200211 contacts →

Indirect evidence

“BİAS Mühendislik, 1997 yılında kurulmuştur ve makina mühendisliği disiplinlerinde ileri mühendislik çözümleri sunmaktadır.”

Source: RevenueBase Database · checked Nov 6, 2026
9Indirect evidenceIstanbul, TürkiyeHQ checked Nov 6, 2026201-500209 contacts →

Indirect evidence

Source: RevenueBase Database · checked Nov 6, 2026
10Indirect evidenceIstanbul, TürkiyeHQ checked Nov 6, 2026201-500112 contacts →

Indirect evidence

“Tekyol Construction Co.”

Source: RevenueBase Database · checked Nov 6, 2026
11Indirect evidenceIstanbul, TürkiyeHQ checked Nov 6, 2026201-500108 contacts →

Indirect evidence

“1997 yılında inşaat sektöründe kaliteli ve yenilikçi projelere imza atmak üzere kurulan YILMAZ İNŞAAT, kurulduğu günden bugüne ülkemizde ve dünyada gelişen teknoloji ile artan…”

Source: RevenueBase Database · checked Nov 6, 2026
12Strong evidenceIstanbul, TürkiyeHQ checked Nov 6, 202651-20082 contacts →

Strong evidence

“Topkapı Endüstri, established in 1985, is a leading engineering, sales, and service company operating in the energy, compressed air, and fuel industries.”

Source: RevenueBase Database · checked Nov 6, 2026
13Strong evidenceIstanbul, TürkiyeHQ checked Nov 6, 202651-20062 contacts →

Strong evidence

“Emelec Electrical Engineering Trading Company EM Electrical Material & Contracting, a dynamic engineering company officially establisted in April has the capability and capacity…”

Source: RevenueBase Database · checked Nov 6, 2026

Showing 13 of 1,223 engineering companies based in Istanbul, Türkiye

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,069 reachable decision-makers.

Free signup · no credit card

View the full list →

Engineering companies based in Istanbul, Türkiye at a glance

As of Nov 6, 2026
13.3%Verified-email coverage
18.8Average contacts per company
11-50Median size (employees)
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
516
11-50
411
51-200
174
201-500
68
501-1,000
25
1,001-5,000
18
5,001-10,000
4
10001+
5

Email recency for this list is measured across the whole Türkiye list rather than for Istanbul, so it is reported there. Company counts and contact totals on this page are exact for Istanbul, over 1,223 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 engineering companies, 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 Istanbul, Türkiye whose own description of what they do matches “engineering companies”. 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 engineering companies), 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 engineering companies, and records with no verified work email. Companies headquartered outside Istanbul 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, 3,069 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 November 6, 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.

Frequently asked

How many engineering companies are based in Istanbul, Türkiye?

The directory lists 1,223 engineering companies based in Istanbul, Türkiye as of November 2026.

What services do engineering companies provide?

Engineering companies provide services such as design, consulting, testing, project management, and technical support across disciplines and industries.

How can I find contacts at engineering companies?

This directory includes 22,996 contacts and 3,069 email addresses associated with engineering companies.

Ready to reach these companies? Verified emails and direct dials for all 1,223 engineering companies based in Istanbul, Türkiye. Start with a free account, no credit card.

Download this list →

Related lists

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.