Company lists · Data refreshed September 2026
Top 10 International regulatory consulting firms based in Istanbul, Türkiye
RevenueBase identified 92 international regulatory consulting firms headquartered in Istanbul, Türkiye as of September 2026 and tracks 758 professional contacts across them, including 136 with verified work emails. Across Türkiye, Istanbul is the largest hub for this category.
This list covers international regulatory consulting firms headquartered in Istanbul, 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.
The 10 largest international regulatory consulting firms based in Istanbul, Türkiye
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 33 contacts → | ||||
Indirect evidence “1994 yılında kurulan Excel İletişim ve Algı Yönetimi, ulusal ve uluslararası pek çok kurum, marka ve kamu kurumlarından oluşan “iş ortaklarının” itibar ve algı yönetimine strateji…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 13 contacts → | ||||
Indirect evidence “İlaç, biyoteknoloji, tıbbi cihaz ve hükümet ve halk sağlığı kuruluşlarına danışmanlık ve dış kaynak geliştirme ve ticarileştirme hizmetleri sağlayan küresel bir tedarikçiyiz.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 9 contacts → | ||||
Partial evidence “Established 2007 to provide services in translation, regulatory affairs, consultancy and medical research for the healthcare industry, DeltaMed Ajans ve Dil Hizmetleri A.Ş.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 7 contacts → | ||||
Indirect evidence “Established in 2003, Istanbul Economics is the leading public affairs and corporate advisory firm in Türkiye.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 4 contacts → | ||||
Strong evidence “We provide consultancy services at international level, in the fields of ‘’Health & Beauty’’,"Travel","Industry" and ‘’consulting’’.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 4 contacts → | ||||
Indirect evidence “ZAY Strateji,"Stratejik İletişim ve İlişkiler" alanında uzmanlaşmış, bir danışmanlık firmasıdır.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 2 contacts → | ||||
Indirect evidence “Customs & Partners is an independent audit and consultancy firm specializing in customs and foreign trade, founded by partners each with at least +20 years of experience…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 2 contacts → | ||||
Indirect evidence “Consultürk, müşterilerine güvenilir ve kolay ticaretin kapılarını açmaktadır.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 2 contacts → | ||||
Strong evidence “Ardis Consulting provides regulatory and strategic consultancy services for companies operating in the healthcare sector, with a strong focus on medical devices and IVDs.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1 contacts → | ||||
Indirect evidence “Sözügeçer Ar-Ge & Danışmanlık Regülasyon Birimi: Tıbbi cihaz üreticilerine CE Belgelendirme süreçlerinde danışmanlık hizmeti ve MDR yetkinliğine sahip mevzuata uyum sorumlusu…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
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: international regulatory 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 international regulatory consulting firms.
- Partial evidence
- Its own public description names part of international regulatory consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name international regulatory 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 10 of 92 international regulatory consulting firms based in Istanbul, Türkiye
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International regulatory consulting firms based in Istanbul, Türkiye at a glance
As of Sep 28, 2026Companies by employee count
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 92 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 international regulatory 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 Istanbul, Türkiye whose own description of what they do matches “international regulatory 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 international regulatory 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 international regulatory consulting firms, 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, 136 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.
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 international regulatory 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 international regulatory consulting firms are there based in Istanbul, Türkiye?
RevenueBase identified 92 international regulatory consulting firms headquartered in Istanbul, 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?
Excel İletişim, headquartered in Istanbul, tops this list with the largest team on record.
Which city in Türkiye has the most international regulatory consulting firms?
Istanbul leads Türkiye with 92 headquartered companies, followed by Ankara (42) and Cankaya (19).
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 136 verified decision-maker contacts tracked across these 92 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.
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