Company lists · Data refreshed November 2026

Top 25 Enterprise-grade custom software developers based in Türkiye

RevenueBase identified 1,277 company matches for enterprise-grade custom software developers associated with Türkiye as of November 2026 and tracks 8,919 professional contacts across them, including 1,543 with verified work emails. Istanbul is the largest hub.

This list covers company matches for enterprise-grade custom software developers associated with 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
1,277Companies
8,919Contacts tracked
1,543Verified emails
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The 25 largest enterprise-grade custom software developers based in Türkiye

Ranked by team size
Top 25 of 1,277 company matches for enterprise-grade custom software developers based in 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 matchİzmi̇r, TürkiyeHQ recorded Nov 6, 2026201-500260 contacts →

Exact match

“Probel Bilgisayar, 1998 yılında IT sektöründe orta ve büyük ölçekli kurum ve kuruluşlara yönelik başlatmış olduğu çalışmalarına günümüzde 220 kişilik uzman ve nitelikli kadrosu…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202651-200147 contacts →

Exact match

“We are a software development company with 17 years of experience in the industry, specializing in: Mobile Applications, Custom Development Web Projects Shopify Projects…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202651-200144 contacts →

Exact match

“The owner of the brand “TechNarts”, Nart Informatics was established in 2007.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 2026201-500142 contacts →

Exact match

“Experilabs (by SAHABT Yazılım) is a leading information technology company in Europe that provides business consulting, software development, onsite and offshore outsourcing to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202651-200141 contacts →

Exact match

“Locksmith Software Technologies commenced its operations with the aim of producing most suitable and highest quality information technology solutions for its customers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202651-200123 contacts →

Exact match

“Founded in 1994, BIS is a leading technology and service provider delivering packaged application solutions as well as custom software development, frameworks, integration…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact 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
9Exact matchKadikoy, TürkiyeHQ recorded Nov 6, 202651-200109 contacts →

Exact match

“Infonal is a technology services and IT consultancy company providing deeply enterprise software architecture and domain specific know how.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSariyer, TürkiyeHQ recorded Nov 6, 202651-200107 contacts →

Exact match

“İdea Teknoloji Çözümleri, 2005 yılında, satış süreçlerinin daha etkin yönetimini sağlayacak yazılımlar geliştirmek amacıyla kuruldu.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202651-20086 contacts →

Exact match

“We started our journey in 2010 with the aim of providing consultancy and software development services in the field of information technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 202651-20078 contacts →

Exact match

“Smartiks was established in 2006 to provide effective business solutions, software development and consultancy with its expert staff by using the highest technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchKonyaaltı, TürkiyeHQ recorded Nov 6, 202611-5076 contacts →

Exact match

“Welcome to the tech playground of the future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Proto Yazılım; is a technology company founded by software professionals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMaltepe, TürkiyeHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“Our team is specialized in enterprise application development, data quality, analytics and data integration.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAnkara, TürkiyeHQ recorded Nov 6, 202651-20060 contacts →

Exact match

“İşinizi yazılıma dönüştürüyoruz.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchİçerenköy, TürkiyeHQ recorded Nov 6, 202611-5050 contacts →

Exact match

“Yazılım ihtiyaçlarınız için deneyimli çözüm ortağınız!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“Müşterilerine operasyonlarını kolay ve verimli bir şekilde yürütmelerini sağlayacak çözümler ve bu çözümlerin devamlılığını garantileyen hizmetler sunmak için kurulmuş bir yazılım…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact 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
20Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“Kle Information Technologies is Software Outsourcing & Development service provider offering outsourced product development, custom development and IT outsourcing services to its…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact 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
22Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“SİSTEK has established since 1992 and we are specialized to design and develop customized and packaged software solutions in industrial and commercial areas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 202651-20037 contacts →

Exact match

“NextLua is a technology company, based in Turkey and founded by a team of experienced developers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchYenimahalle, TürkiyeHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“Solvera olarak, yenilik ve değişimi kendisine kılavuz edinen uzman ve tecrübeli ekibimizle, akılcı ve pratik çözümler sunan sistemler geliştirerek; müşterilerimize ihtiyaçlarını…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchİstanbul, TürkiyeHQ recorded Nov 6, 2026n/a34 contacts →

Exact match

“2007 yılından itibaren çıktığımız internet yazılımları geliştirme yolculuğumuza çok sayıda proje ile devam ediyoruz.”

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

Showing 25 of 1,277 enterprise-grade custom software developers based in Türkiye

See the full list, filter by size, metro and specialty, and access 1,543 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Enterprise-grade custom software developers based in Türkiye at a glance

As of Nov 6, 2026
17.3%Verified-email coverage
7.0Average contacts per company
1-10Median size (employees)
30.0%Largest-city concentration · Istanbul
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
884
11-50
336
51-200
47
201-500
6
501-1,000
1
1,001-5,000
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 1,277 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 Türkiye whose business descriptions match “enterprise-grade custom software developers” 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 1,543 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.

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 “enterprise-grade custom software developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many enterprise-grade custom software developers are there based in Türkiye?

RevenueBase identified 1,277 company matches for enterprise-grade custom software developers associated with 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 has the most enterprise-grade custom software developers?

Istanbul leads with 383 company records, followed by Ankara (106) and Izmir (64).

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 1,543 professional contacts with verified work emails tracked across these 1,277 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.