Company lists · Data refreshed October 2026

Top 15 Core banking system consultants based in Türkiye

RevenueBase identified 27 company matches for core banking system consultants associated with Türkiye as of October 2026 and tracks 4,066 professional contacts across them, including 1,860 with verified work emails. Istanbul is the largest hub.

This list covers company matches for core banking system consultants 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 October 10, 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 Oct 10, 2026 How this list was built
27Companies
4,066Contacts tracked
1,860Verified emails
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The 15 largest core banking system consultants based in Türkiye

Ranked by team size
Top 15 of 27 company matches for core banking system consultants based in Türkiye, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 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 Oct 10, 20261,001-5,0001,897 contacts →

Exact match

“Founded in 1987 to provide Information Technology services to the finance sector, Intertech has been operating within DenizBank Financial Services Group since 2002.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2Exact matchGebze, TürkiyeHQ recorded Oct 10, 20261,001-5,0001,314 contacts →

Exact match

“IBTech, IT and research and development subsidiary of QNB Finansbank was established in 2005 as a R&D company of QNB Finansbank IT.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3Exact matchIstanbul, TürkiyeHQ recorded Oct 10, 2026201-500381 contacts →

Exact match

“GTech stands as a pioneering technology enterprise, delivering value-added services and solutions within the realm of digital transformation processes.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4Exact matchIstanbul, TürkiyeHQ recorded Oct 10, 202651-200124 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 · Oct 10, 2026 · View company records in RevenueBase
5Exact matchAtaşehir, TürkiyeHQ recorded Oct 10, 202651-200111 contacts →

Exact match

“DZD was established in 2019, to enhance technology maintenance services and project delivery timelines with affordable technology solutions within the banking and finance sector.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6Exact matchKadikoy, TürkiyeHQ recorded Oct 10, 202651-200100 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 · Oct 10, 2026 · View company records in RevenueBase
7Exact matchİstanbul, TürkiyeHQ recorded Oct 10, 202611-5021 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8Exact matchİstanbul, TürkiyeHQ recorded Oct 10, 202611-5018 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9Exact matchIstanbul, TürkiyeHQ recorded Oct 10, 202611-5012 contacts →

Exact match

“Siyeso, başta bankacılık ve finans alanında kurumların ihtiyaçları doğrultusunda çözümler sunan bir şirkettir.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10Exact matchIstanbul, TürkiyeHQ recorded Oct 10, 202651-2009 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 · Oct 10, 2026 · View company records in RevenueBase
11Exact matchBursa, TürkiyeHQ recorded Oct 10, 202611-506 contacts →

Exact match

“Geleceğe iyibir adım.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12Exact matchGebze, TürkiyeHQ recorded Oct 10, 20261-105 contacts →

Exact match

“Naya, finans ve özel sektörlerde Bilgi Teknolojileri danışmanlık hizmetleri sunmaktadır.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13Exact matchİstanbul, TürkiyeHQ recorded Oct 10, 20261-103 contacts →

Exact match

“Finaris, established in July 2024 in Istanbul, is a pioneering company specializing in risk management consulting and information technology services.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14Exact matchIstanbul, TürkiyeHQ recorded Oct 10, 20261-101 contacts →

Exact match

“End-to-End Financial Technology Consulting about Open Banking and Payment Systems.”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15Exact matchIstanbul, TürkiyeHQ recorded Oct 10, 20261-101 contacts →

Exact match

“Bankacılık ve fintech sektöründe yılların deneyimine sahip Finagree olarak, teknolojik ve stratejik ihtiyaçlarınıza en uygun, özelleştirilmiş danışmanlık ve yazılım hizmetleri…”

Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase

Showing 15 of 27 core banking system consultants based in Türkiye

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Core banking system consultants based in Türkiye at a glance

As of Oct 10, 2026
45.7%Verified-email coverage
150.6Average contacts per company
11-50Median size (employees)
63.0%Largest-city concentration · Istanbul
Oct 10, 2026Page data refreshed

Companies by employee count

1-10
9
11-50
10
51-200
5
201-500
1
1,001-5,000
2

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 27 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 “core banking system consultants” 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 1,860 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 October 10, 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 “core banking system consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many core banking system consultants are there based in Türkiye?

RevenueBase identified 27 company matches for core banking system consultants associated with Türkiye as of October 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?

Intertech Information Technology And Marketing INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most core banking system consultants?

Istanbul leads with 17 company records, followed by Baris Mah. (1) and Besiktas (1).

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 1,860 professional contacts with verified work emails tracked across these 27 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 October 10, 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.