Company lists · Data refreshed September 2026

Top 25 Marine engineering and consulting firms based in Türkiye

Name: Marine engineering and consulting firms based in Türkiye
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 771 companies tracked

RevenueBase identified 771 marine engineering and consulting firms headquartered in Türkiye as of September 2026 and tracks 7,822 professional contacts across them, including 952 with verified work emails. Istanbul is the largest hub.

This list covers marine engineering and consulting firms 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 28, 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 28, 2026 86% judged on-target in blind review

771Companies

7,822Contacts tracked

952Verified emails

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The 25 largest marine engineering and consulting firms based in Türkiye

Ranked by team size

Top 25 of 771 marine engineering and consulting firms based in Türkiye, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to marine engineering and consulting firms: 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	Tekfen Engineering	Partial evidence	Sisli, TürkiyeHQ checked Sep 28, 2026	201-500	293 contacts →
	Partial evidence “Tekfen Engineering was founded in 1984 to provide engineering services for our parent company, Tekfen Construction.” Source: RevenueBase Database · checked Sep 28, 2026
2	Elkon Elektrik San. VE Tic. A.Ş	Partial evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	201-500	224 contacts →
	Partial evidence “elkon was established in 1980 to design, manufacture, integrate and commission low voltage electrical equipment and automation systems for the maritime industry.” Source: RevenueBase Database · checked Sep 28, 2026
3	Temelsu International Engineering Services INC	Strong evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	201-500	188 contacts →
	Strong evidence “TEMELSU is a well known Turkish consulting engineering company which provides multidisciplinary engineering services, locally and internationally, since its foundation in 1969.” Source: RevenueBase Database · checked Sep 28, 2026
4	MED Marine Holding A.Ş	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	1,001-5,000	185 contacts →
	Partial evidence “Turkish shipbuilder & Türkiye's leading tugboat operator Med Marine is a Turkish shipbuilder and Turkey's leading tugboat operator, providing a broad range of services in towage…” Source: RevenueBase Database · checked Sep 28, 2026
5	Dolsar Engineering Inc. CO	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	201-500	164 contacts →
	Partial evidence “Founded in 1971, DOLSAR is a multi-disciplinary engineering firm offering engineering, architectural, consultancy and supervision services for large-scale projects in a wide range…” Source: RevenueBase Database · checked Sep 28, 2026
6	Mega Engineering Consulting	Strong evidence	Umitkoy, TürkiyeHQ checked Sep 28, 2026	201-500	119 contacts →
	Strong evidence “MEGA Engineering Consulting Inc, established in 1993, is a multidisciplinary firm that provides engineering, design, construction supervision and project management services for a…” Source: RevenueBase Database · checked Sep 28, 2026
7	ART Shipyard	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	201-500	107 contacts →
	Partial evidence “Art Shipyard is the new shipyard of Besiktas Group a long established maritime company and market leader in the ship repair industry in Europe.” Source: RevenueBase Database · checked Sep 28, 2026
8	Kamer Marine	Partial evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	11-50	101 contacts →
	Partial evidence “Ship Management Vessel Management Crew Management Marine Consultancy” Source: RevenueBase Database · checked Sep 28, 2026
9	Apco Teknik	Partial evidence	Ankara And Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	81 contacts →
	Partial evidence “Apco is a full-service engineering, consultancy and project management firm, established in 1987.” Source: RevenueBase Database · checked Sep 28, 2026
10	Stadia Engineering	Partial evidence	Çankaya, TürkiyeHQ checked Sep 28, 2026	51-200	77 contacts →
	Partial evidence “Stadia Engineering and Consultancy was established in 2018.” Source: RevenueBase Database · checked Sep 28, 2026
11	Avatec Marine	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	76 contacts →
	Partial evidence “AVATEC Marine is an international maritime service company built on safety, quality, and trust - specialising in marine electronics across automation, navigation, communication…” Source: RevenueBase Database · checked Sep 28, 2026
12	Biltek Construction International Company	Partial evidence	Ankara, TürkiyeHQ checked Sep 28, 2026	501-1,000	65 contacts →
	Partial evidence “Biltek provides a portfolio of engineering and management services to public and private sectors worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
13	CAN Makina Elektrik	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	63 contacts →
	Partial evidence “Can Makina Elektrik is a leading company in maritime market, operating as a system integrator of innovative and relaiable technology solutions which are mostly tailor-made…” Source: RevenueBase Database · checked Sep 28, 2026
14	D&t Group Engineering And Contracting CO	Partial evidence	Umraniye, TürkiyeHQ checked Sep 28, 2026	501-1,000	62 contacts →
	Partial evidence “We are delighted to introduce D&T Group as an engineering and contracting company.” Source: RevenueBase Database · checked Sep 28, 2026
15	Agest Marine Electrical Technologies	Indirect evidence	Antalya, TürkiyeHQ checked Sep 28, 2026	51-200	57 contacts →
	Indirect evidence “Agest Electrics Ltd.” Source: RevenueBase Database · checked Sep 28, 2026
16	Koryon Engineering & Consultancy	Partial evidence	Bornova, TürkiyeHQ checked Sep 28, 2026	11-50	55 contacts →
	Partial evidence “At A Glance;* Oil & Gas Engineering Company,* Managed by Practicing Refinery Engineers,* Engineering Expertise that Minimizes Cost & Improves Process,* Over 100 Total Project…” Source: RevenueBase Database · checked Sep 28, 2026
17	Delta Marine	Strong evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	51-200	49 contacts →
	Strong evidence “VALUE PROPOSITION Delta Marine provides to its customers effective and reliable design, engineering and consultancy services in order to get a ship which guarantees the desired…” Source: RevenueBase Database · checked Sep 28, 2026
18	Btmteknik	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	46 contacts →
	Indirect evidence “BTMteknik was established at 2017 as a part of group companies of BTMCo to supply quality service and fast spare part delivery for the products which is supplied by BTMCo.” Source: RevenueBase Database · checked Sep 28, 2026
19	EFK Engineering	Partial evidence	Çankaya, TürkiyeHQ checked Sep 28, 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 28, 2026
20	YAF Group	Partial evidence	Tuzla, TürkiyeHQ checked Sep 28, 2026	51-200	43 contacts →
	Partial evidence “Our parent company was established in 2008 in Turkey & China, with over 25 years of maritime experience, called Yaf Diesel provides spare parts, services, and maintenance for main…” Source: RevenueBase Database · checked Sep 28, 2026
21	Kuasar Marin Engineering INC	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 28, 2026	51-200	42 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
22	Quad Plus Otomasyon	Partial evidence	Bursa, TürkiyeHQ checked Sep 28, 2026	51-200	41 contacts →
	Partial evidence “Our Services Professional Engineering Industrial Safety Repair and Field Service Commissioning System Integration Power Services” Source: RevenueBase Database · checked Sep 28, 2026
23	Navtek Naval Technologies INC	Indirect evidence	Pendik, TürkiyeHQ checked Sep 28, 2026	51-200	39 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
24	Tomarok Mühendislik VE Danışmanlık A.Ş	Partial evidence	Sisli, TürkiyeHQ checked Sep 28, 2026	11-50	38 contacts →
	Partial evidence “Tomarok Engineering is an innovative young company, that base their philosophy on thinking out of the box.” Source: RevenueBase Database · checked Sep 28, 2026
25	AGA Marine	Partial evidence	Istanbul, TürkiyeHQ checked Sep 28, 2026	n/a	38 contacts →
	Partial evidence “Aga Marine is a newly established maritime company that started to serve on April 1st, 2021 İstanbul.” Source: RevenueBase Database · checked Sep 28, 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: marine engineering and consulting firms. 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 marine engineering and consulting firms.
Partial evidence: Its own public description names part of marine engineering and consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine engineering and consulting firms. 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 771 marine engineering and consulting firms based in Türkiye

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Marine engineering and consulting firms based in Türkiye at a glance

As of Sep 28, 2026

12.2%Verified-email coverage

10.1Average contacts per company

11-50Median size (employees)

33.6%Largest-city concentration · Istanbul

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

345

11-50

289

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 771 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 marine engineering and consulting firms, 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 “marine engineering and consulting firms”. 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 marine engineering and consulting firms), 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 marine engineering and consulting firms, 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, 952 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 28, 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.

Marine engineering and consulting firms 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 marine engineering and consulting firms, 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 marine engineering and consulting firms are there based in Türkiye?

RevenueBase identified 771 marine engineering and consulting firms 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?

Tekfen Engineering, headquartered in Sisli, tops this list with the largest team on record.

Which city has the most marine engineering and consulting firms?

Istanbul leads with 259 headquartered companies, followed by Tuzla (91) and Ankara (45).

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 952 verified decision-maker contacts tracked across these 771 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 28, 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.