Company lists · Data refreshed September 2026

Top 25 Infrastructure advisory consultants based in Türkiye

RevenueBase identified 610 infrastructure advisory consultants headquartered in Türkiye as of September 2026 and tracks 13,625 professional contacts across them, including 1,102 with verified work emails. Istanbul is the largest hub.

This list covers infrastructure advisory 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 21, 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 21, 2026 86% judged on-target in blind review
610Companies
13,625Contacts tracked
1,102Verified emails
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The 25 largest infrastructure advisory consultants based in Türkiye

Ranked by team size
Top 25 of 610 infrastructure advisory consultants based in Türkiye, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure advisory 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceTürkiyeHQ checked Sep 21, 202610001+2,852 contacts →

Indirect evidence

“Yapı Merkezi, founded in 1965, aims "to create and to realize construction projects that will serve humanity by creating environments of happiness".”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceAnkara, TürkiyeHQ checked Sep 21, 2026501-1,0001,006 contacts →

Partial evidence

“Yüksel Proje, established in 1978, provides design, engineering and consultancy services in Turkiye and 38 countries worldwide.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceÇankaya / Ankara, TürkiyeHQ checked Sep 21, 20265,001-10,000818 contacts →

Indirect evidence

“Renaissance Construction was founded in St.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceÜsküdar, TürkiyeHQ checked Sep 21, 20261,001-5,000641 contacts →

Partial 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 21, 2026
5Partial evidenceAnkara, TürkiyeHQ checked Sep 21, 2026201-500340 contacts →

Partial evidence

“Expertise in Design, Engineering & Consultancy” PROKON Engineering & Consultancy Inc.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceAnkara, TürkiyeHQ checked Sep 21, 2026501-1,000293 contacts →

Indirect evidence

“Founded in 1964, SU-YAPI Engineering and Consulting Inc.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceSisli, TürkiyeHQ checked Sep 21, 2026201-500293 contacts →

Indirect evidence

“Tekfen Engineering was founded in 1984 to provide engineering services for our parent company, Tekfen Construction.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceAnkara, TürkiyeHQ checked Sep 21, 2026501-1,000253 contacts →

Indirect evidence

“Established in 1988, KOLTEK is a technical consulting firm that offers multidisciplinary engineering services locally and abroad.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceAnkara, TürkiyeHQ checked Sep 21, 2026201-500188 contacts →

Indirect 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 21, 2026
10Indirect evidenceAnkara, TürkiyeHQ checked Sep 21, 2026501-1,000177 contacts →

Indirect evidence

“ELTEMTEK A.Ş olarak temel mühendislik hizmetlerinden, yatırım danışmanlığına; işletme hizmetlerine, sistem analiz etütlerine, harita ve kamulaştırma hizmetlerine uzanan geniş bir…”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceAtasehir, TürkiyeHQ checked Sep 21, 202651-200166 contacts →

Partial evidence

“ENTEGRE PROJECT MANAGEMENT is one of the leading Development Consultancy and Project Management Companies in Turkey and provides services to its clients with utmost care of…”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceAnkara, TürkiyeHQ checked Sep 21, 2026201-500164 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 21, 2026
13Partial evidenceAnkara, TürkiyeHQ checked Sep 21, 2026201-500164 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 21, 2026
14Indirect evidenceUmitkoy, TürkiyeHQ checked Sep 21, 2026201-500119 contacts →

Indirect 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 21, 2026
15Indirect evidenceÜsküdar, TürkiyeHQ checked Sep 21, 202651-20092 contacts →

Indirect evidence

“Yapı Merkezi İDİS (İzleme Denetim & İletişim Sistemleri) A.Ş.”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceAnkara And Istanbul, TürkiyeHQ checked Sep 21, 202651-20081 contacts →

Partial evidence

“Apco is a full-service engineering, consultancy and project management firm, established in 1987.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceAnkara, TürkiyeHQ checked Sep 21, 202651-20077 contacts →

Indirect evidence

“WYG is an award-winning professional services firm employing over 1,600 people and operating from more than 50 locations across the UK, Europe, Africa, Asia and the Middle East.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceZuhuratbaba, TürkiyeHQ checked Sep 21, 2026501-1,00075 contacts →

Indirect evidence

“1980 yılında kurulan Taşyapı İnşaat, 40 yıldır kamu ve özel kuruluşların ihtiyaçlarına cevap vermektedir.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceAnkara, TürkiyeHQ checked Sep 21, 202651-20074 contacts →

Indirect evidence

“Founded in 2004, BCT Architecture Engineering Consulting Company has established its local offices in different regions of Turkey in order to keep up with the demand from…”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceCankaya, TürkiyeHQ checked Sep 21, 202651-20067 contacts →

Indirect evidence

“Famer Group is an international independent consulting company, offering Planning, Architectural, Engineering Design and Management services for construction projects.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceAnkara, TürkiyeHQ checked Sep 21, 2026501-1,00065 contacts →

Indirect evidence

“Biltek provides a portfolio of engineering and management services to public and private sectors worldwide.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceCankaya, TürkiyeHQ checked Sep 21, 202651-20064 contacts →

Indirect evidence

“Toplu taşıma ve mobilite çözümleri konusunda uzmanlaşmış, dünyanın öncü mühendislik ve danışmanlık gruplarından SYSTRA, 65 yılı aşkın süredir ulaşım altyapılarını oluşturarak…”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceIstanbul, TürkiyeHQ checked Sep 21, 202651-20061 contacts →

Indirect evidence

“TIBA is formed in 2005 to serve expanding needs of construction industry.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceIstanbul, TürkiyeHQ checked Sep 21, 202651-20048 contacts →

Indirect evidence

“ENVESU is a consulting and project management company offering a wide range of services in the construction industry.”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceİstanbul, TürkiyeHQ checked Sep 21, 202651-20044 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 21, 2026

Showing 25 of 610 infrastructure advisory consultants based in Türkiye

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Infrastructure advisory consultants based in Türkiye at a glance

As of Sep 21, 2026
8.1%Verified-email coverage
22.3Average contacts per company
11-50Median size (employees)
21.1%Largest-city concentration · Istanbul
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
288
11-50
211
51-200
59
201-500
28
501-1,000
14
1,001-5,000
4
5,001-10,000
2
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 610 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 infrastructure advisory 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 “infrastructure advisory 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 infrastructure advisory 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 infrastructure advisory 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, 1,102 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 21, 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.

Infrastructure advisory consultants 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 infrastructure advisory 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 infrastructure advisory consultants are there based in Türkiye?

RevenueBase identified 610 infrastructure advisory 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?

Yapı Merkezi, headquartered in Türkiye, tops this list with the largest team on record.

Which city has the most infrastructure advisory consultants?

Istanbul leads with 129 headquartered companies, followed by Ankara (126) and Cankaya (81).

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 1,102 verified decision-maker contacts tracked across these 610 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 21, 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.