Company lists · Data refreshed November 2026

Top 13 Application programming services based in Istanbul, Türkiye

RevenueBase identified 256 company matches for application programming services associated with Istanbul, Türkiye as of November 2026 and tracks 2,650 professional contacts across them, including 737 with verified work emails. Across Türkiye, Istanbul is the largest hub for this category.

This list covers company matches for application programming services associated with Istanbul, Türkiye, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
256Companies
2,650Contacts tracked
737Verified emails
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The 13 largest application programming services based in Istanbul, Türkiye

Ranked by team size
Top 13 of 256 company matches for application programming services based in Istanbul, Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 2026501-1,000642 contacts →

Exact match

“adesso Turkey: Where Global IT Expertise Meets Local Excellence Since its foundation in 2013, adesso Turkey has grown from a small Istanbul office into a multi-domain project…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 2026201-500111 contacts →

Exact match

“1975 yılında Sabancı Holding bünyesinde kurulan BİMSA, 40 yıllık deneyimi ile Türkiye’nin önde gelen bilgi teknolojisi şirketlerindendir.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 2026n/a48 contacts →

Exact match

“Pragma Bilisim Yazilim Danismanlik Tic.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“Conevel Bilgi Teknolojileri”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“2008 yılında Amerika Birleşik Devletlerinde uluslararası firmalara "Kullanmayı seveceğiniz uygulamalar ile daha verimli çalışın" yaklaşımı ile iş uygulamaları geliştirerek…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Serve following IT services on various sectors;* Enterprise software solutions * B2B and B2C software solutions * Mobile app development * Cloud based app development * Managed…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Hello, Yelloware Information Technologies Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Türkiye’nin yeni nesil bilişim firmalarından biri olarak, 2021 yılında kurulmuş olmamıza rağmen geniş ürün yelpazemiz ve sahibi olduğumuz bir çok partnerlik ile birlikte sayısı…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Parkyeri is an Istanbul based company with its scope of business covering software development, operations and consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“ASSA Technology is a company that specializes in creating innovative and cutting-edge technology solutions and also consultancy for businesses and organizations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202651-20010 contacts →

Exact match

“Yazılım, Danışmanlık, Web Tabanlı Uygulamalar, Mobil Uygulamalar, Workcube ERP, Entegre Yazılım Çözümleri, Cross Platform Mobil Uygulamalar, Açık Bankacılık Çözümleri”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Neoxi is a team of developers that thrives on delivering quality software.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“2011 yılında kurulan Tetraport Teknoloji, konusunda uzman ekibiyle sizlere yenilikçi ve değer kazandıran çözümler sunan yazılım ve danışmanlık firmasıdır.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 13 of 256 application programming services based in Istanbul, Türkiye

See the full list, filter by size, metro and specialty, and access 737 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Application programming services based in Istanbul, Türkiye at a glance

As of Nov 6, 2026
27.8%Verified-email coverage
10.4Average contacts per company
1-10Median size (employees)
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
153
11-50
86
51-200
13
201-500
3
501-1,000
1

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 256 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Istanbul, Türkiye whose business descriptions match “application programming services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 737 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Application programming services by metro in Türkiye

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “application programming services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many application programming services are there based in Istanbul, Türkiye?

RevenueBase identified 256 company matches for application programming services associated with Istanbul, Türkiye as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Adesso Turkey tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Türkiye has the most application programming services?

Istanbul leads Türkiye with 256 company records, followed by Ankara (64) and Izmir (44).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 737 professional contacts with verified work emails tracked across these 256 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.