Company lists · Data refreshed September 2026
Top 11 Account advertising companies based in Sisli, Türkiye
RevenueBase identified 112 account advertising companies headquartered in Sisli, Türkiye as of September 2026 and tracks 1,471 professional contacts across them, including 307 with verified work emails and 61 with mobile numbers. Istanbul is the largest hub.
This list covers account advertising companies headquartered in Sisli, 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 22, 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 11 largest account advertising companies based in Sisli, Türkiye
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 122 contacts → | ||||
Indirect evidence “Great Place to Work Certified* Creating meaningful connections between people and brands through creativity, media and innovation.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 28 contacts → | ||||
Indirect evidence “Yaratıcı fikirler için özgürlük” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 24 contacts → | ||||
Indirect evidence “Dijitale doğmuş, gelenekselle yoğrulmuş reklamcılardan oluşan bir ajansız.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 11 contacts → | ||||
Indirect evidence “We produce Tailor-Made projects for your brand.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 11 contacts → | ||||
Indirect evidence “We were founded at the end of 2004 with a clear vision: Explore the digital medium to full extent and utilize its power to communicate marketing messages in engaging and creative…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 10 contacts → | ||||
Partial evidence “Mecaz is a full service Marketing & Advertising Agency specialized in; Marketing Services ATL Communication BTL Communication Strategic Marketing Consultancy Direct Marketing…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 8 contacts → | ||||
Indirect evidence “Dijital Pazarlama Ajansı BossyDigital, mesajlarını daha verimli bir şekilde yaymak ve cirosunu artırmak isteyen işletmelere 360° dijital reklamcılık, seo, sosyal medya yönetimi…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 7 contacts → | ||||
Indirect evidence “OCC Grubunun temel amacı, grubun yan kuruluşları arasında sinerjiyi teşvik etmektir.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 7 contacts → | ||||
Indirect evidence “Marka Kalkındırma Ajansı.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 6 contacts → | ||||
Indirect evidence “Dünyanın en büyük medya network’lerinden biri olan Carat’ta misyonumuz, müşterilerimiz için medyayı yeniden tanımlamaktır: Bugünün küreselleşen ve yakınsama odaklı gelişen…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 3 contacts → | ||||
Indirect evidence “DigitalAd Dijital Reklam Satışevi, pazarlama hedeflerinizi gerçeğe dönüştürmek için öncü dijital reklam çözümleri sunar.” Source: RevenueBase Database · checked Sep 22, 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: account advertising companies. 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 account advertising companies.
- Partial evidence
- Its own public description names part of account advertising companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name account advertising companies. 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 11 of 112 account advertising companies based in Sisli, Türkiye
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Account advertising companies based in Sisli, Türkiye at a glance
As of Sep 22, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 24.0dCompany record updated
Median 85.0dHow 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 account advertising 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 Sisli, Türkiye whose own description of what they do matches “account advertising 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 account advertising 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 account advertising companies, and records with no verified work email. Companies headquartered outside Sisli 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, 307 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 22, 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.
Account advertising companies by metro in Türkiye
- Account advertising companies in Istanbul253
- Account advertising companies in Ankara40
- Account advertising companies in Izmir33
- Account advertising companies in Sisli26
- Account advertising companies in Kadikoy25
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 account advertising companies, 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 account advertising companies are there based in Sisli, Türkiye?
RevenueBase identified 112 account advertising companies headquartered in Sisli, 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?
Havas İstanbul, headquartered in Sisli, tops this list with the largest team on record.
Which city has the most account advertising companies?
Istanbul leads with 253 headquartered companies, followed by Ankara (40) and Izmir (33).
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 307 verified decision-maker contacts tracked across these 112 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 22, 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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