Company lists · Data refreshed September 2026
Top 15 Legacy system modernization firms based in Istanbul, Türkiye
RevenueBase identified 124 company matches for legacy system modernization firms associated with Istanbul, Türkiye as of September 2026 and tracks 1,572 professional contacts across them, including 457 with verified work emails. Across Türkiye, Istanbul is the largest hub for this category.
This list covers company matches for legacy system modernization firms 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 September 28, 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.
The 15 largest legacy system modernization firms based in Istanbul, Türkiye
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 125 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 · Sep 28, 2026 · View company records in RevenueBase | |||||
| 2 | 102 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 · Sep 28, 2026 · View company records in RevenueBase | |||||
| 3 | 60 contacts → | ||||
Exact match “vMind, offering systems integration and technology services with advanced degrees of expertise in national and international market, also with innovative and effective solutions…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 4 | 40 contacts → | ||||
Exact match “Conevel Bilgi Teknolojileri” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 5 | 40 contacts → | ||||
Exact match “NetCore Bilişim, müşterilerine yüksek teknoloji bileşenleri kullanarak, konularında uzman kadrosu ile sektörde bilişim alanında ilerlemeyi hedefleyen kurumların bilgi ve iletişim…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 6 | 40 contacts → | ||||
Exact match “VNGRS is an end-to-end solutions partner that helps enterprises and scale-ups build the desired digital experiences.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 7 | 23 contacts → | ||||
Exact match “Open Source and Enterprise: Integrated IT Innovations Providing modern, integrated, open source and enterprise solutions and services for mid-to-large scale companies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 8 | 19 contacts → | ||||
Exact match “Onicorn, 20 yılı aşkın deneyimi ve güçlü teknoloji ağıyla, işletmelerin dijital dönüşüm süreçlerinde güvenilir bir çözüm ortağıdır.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 9 | 18 contacts → | ||||
Exact match “We are a team of engineers and business professionals gathered to build an entrepreneurship aimed to think and act as an extension of our client's information technology teams.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 10 | 15 contacts → | ||||
Exact match “Kurumların esnek hale gelmesi, sektörlerine ve sektörlerindeki gelişmelere daha hızlı uyum sağlaması, başarı için kaçınılmaz bir gerçek.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 11 | 13 contacts → | ||||
Exact match “As a technology and services provider, Atacom enables you to manage your operations, optimize your IT infrastructure, secure and transform your business into an intelligent…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 12 | 11 contacts → | ||||
Exact match “One Sistem Hizmetleri, önde gelen rekabetçi kurumlara, “Proaktif Çözüm Ortağınız!” ilkesi ile 10 yılı aşkın bir süredir, dijitalleşme konularında danışmanlık ve bilgi…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 13 | 6 contacts → | ||||
Exact match “Voo IT Solutions, işletmelerin bilişim ihtiyaçlarının, güncel teknolojiyi kullanarak karşılanmasını sağlamak üzere 2011 yılında Nuevo adı altında kurulmuştur.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 14 | 6 contacts → | ||||
Exact match “Son teknolojileri ve en yeni hizmetleri yüksek kalite ile sunan VUCA, büyük veya küçük her türlü şirkete ölçeklenebilir çözümler sunmaktadır.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 15 | 5 contacts → | ||||
Exact match “SimpliX olarak şirketinizin merkezine oturan teknolojiyi ve buna bağlı olarak ortaya çıkan ihtiyaçların karşılanmasını sizlere en BASİT hali ile sunuyoruz.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “legacy system modernization firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 15 of 124 legacy system modernization firms based in Istanbul, Türkiye
See the full list, filter by size, metro and specialty, and access 457 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Legacy system modernization 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 124 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 “legacy system modernization firms” 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 457 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 September 28, 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 “legacy system modernization firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many legacy system modernization firms are there based in Istanbul, Türkiye?
RevenueBase identified 124 company matches for legacy system modernization firms associated with Istanbul, Türkiye as of September 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?
BIS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in Türkiye has the most legacy system modernization firms?
Istanbul leads Türkiye with 124 company records, followed by Ankara (29) and Cankaya (17).
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 457 professional contacts with verified work emails tracked across these 124 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 September 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 124 legacy system modernization firms based in Istanbul, Türkiye. Start with a free account, no credit card.
Download this list →Related lists
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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.
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Company intelligence · public preview
Top 15 legacy system modernization firms based in Istanbul, Türkiye
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 124 matching company records for legacy system modernization firms based in Istanbul, Türkiye, with 1,572 tracked contacts and 457 verified work emails.
This public preview shows 15 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 15 legacy system modernization firms based in Istanbul, Türkiye
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  BISbiscozum.com.trHQ: Istanbul, TürkiyeReported employees: 51-200 | Istanbul, Türkiye | 51-200 | Exact match | 125 contacts → |
“Founded in 1994, BIS is a leading technology and service provider delivering packaged application solutions as well as custom software development, frameworks, integration…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: Istanbul, TürkiyeReported employees: 201-500 | Istanbul, Türkiye | 201-500 | Exact match | 102 contacts → |
“1975 yılında Sabancı Holding bünyesinde kurulan BİMSA, 40 yıllık deneyimi ile Türkiye’nin önde gelen bilgi teknolojisi şirketlerindendir.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Vmind Bilgi Teknolojilerivmind.com.trHQ: Istanbul, TürkiyeReported employees: 51-200 | Istanbul, Türkiye | 51-200 | Exact match | 60 contacts → |
“vMind, offering systems integration and technology services with advanced degrees of expertise in national and international market, also with innovative and effective solutions…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Conevel Bilgi Teknolojileri A.Şconevel.comHQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 40 contacts → |
“Conevel Bilgi Teknolojileri” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Netcore Bilisim Hizmetleri A.Şnetcore.com.trHQ: Istanbul, TürkiyeReported employees: 51-200 | Istanbul, Türkiye | 51-200 | Exact match | 40 contacts → |
“NetCore Bilişim, müşterilerine yüksek teknoloji bileşenleri kullanarak, konularında uzman kadrosu ile sektörde bilişim alanında ilerlemeyi hedefleyen kurumların bilgi ve iletişim…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  VNGRSvngrs.comHQ: Istanbul, TürkiyeReported employees: 51-200 | Istanbul, Türkiye | 51-200 | Exact match | 40 contacts → |
“VNGRS is an end-to-end solutions partner that helps enterprises and scale-ups build the desired digital experiences.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Volthreadvolthread.comHQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 23 contacts → |
“Open Source and Enterprise: Integrated IT Innovations Providing modern, integrated, open source and enterprise solutions and services for mid-to-large scale companies.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Onicorn Technologyonicorn.com.tr HQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 19 contacts → |
“Onicorn, 20 yılı aşkın deneyimi ve güçlü teknoloji ağıyla, işletmelerin dijital dönüşüm süreçlerinde güvenilir bir çözüm ortağıdır.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Codeliman Bilgi Teknolojileri VE Danışmanlıkcodeliman.comHQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 18 contacts → |
“We are a team of engineers and business professionals gathered to build an entrepreneurship aimed to think and act as an extension of our client's information technology teams.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Sinerjibt Bilgi Teknolojileri A.Şsinerjibt.comHQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 15 contacts → |
“Kurumların esnek hale gelmesi, sektörlerine ve sektörlerindeki gelişmelere daha hızlı uyum sağlaması, başarı için kaçınılmaz bir gerçek.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Atacomatacom.com.trHQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 13 contacts → |
“As a technology and services provider, Atacom enables you to manage your operations, optimize your IT infrastructure, secure and transform your business into an intelligent…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  ONE Bilgi Sistemleri Tic. A. Şone.com.trHQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 11 contacts → |
“One Sistem Hizmetleri, önde gelen rekabetçi kurumlara, “Proaktif Çözüm Ortağınız!” ilkesi ile 10 yılı aşkın bir süredir, dijitalleşme konularında danışmanlık ve bilgi…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  VOO IT Solutionsvoo.com.trHQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 6 contacts → |
“Voo IT Solutions, işletmelerin bilişim ihtiyaçlarının, güncel teknolojiyi kullanarak karşılanmasını sağlamak üzere 2011 yılında Nuevo adı altında kurulmuştur.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Vuca Solutionsvuca.com.trHQ: Istanbul, TürkiyeReported employees: 1-10 | Istanbul, Türkiye | 1-10 | Exact match | 6 contacts → |
“Son teknolojileri ve en yeni hizmetleri yüksek kalite ile sunan VUCA, büyük veya küçük her türlü şirkete ölçeklenebilir çözümler sunmaktadır.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Simplix Teknoloji Hizmetlerisimplix.com.tr HQ: Istanbul, TürkiyeReported employees: 1-10 | Istanbul, Türkiye | 1-10 | Exact match | 5 contacts → |
“SimpliX olarak şirketinizin merkezine oturan teknolojiyi ve buna bağlı olarak ortaya çıkan ihtiyaçların karşılanmasını sizlere en BASİT hali ile sunuyoruz.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 15 of 124 company matches
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Legacy system modernization firms: dataset insights
September 28, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
124 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 124 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 28, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for legacy system modernization firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many legacy system modernization firms did RevenueBase find based in Istanbul, Türkiye?
The saved snapshot records 124 matching company records, 1,572 tracked contacts and 457 verified emails. The public preview displays 15 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 28, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Legacy system modernization firms by geography
- Legacy system modernization firms based in Buenos Aires, Argentina
- Legacy system modernization firms based in Brisbane, Australia
- Legacy system modernization firms based in Melbourne, Australia
- Legacy system modernization firms based in Perth, Australia
- Legacy system modernization firms based in Sydney, Australia
- Legacy system modernization firms based in Dhaka, Bangladesh
- Legacy system modernization firms based in Barueri, Brazil
- Legacy system modernization firms based in Belo Horizonte, Brazil
- Legacy system modernization firms based in Campinas, Brazil
- Legacy system modernization firms based in Curitiba, Brazil
- Legacy system modernization firms based in Rio De Janeiro, Brazil
- Legacy system modernization firms based in Sao Paulo, Brazil
Cite this list
RevenueBase Data Team. Top 15 legacy system modernization firms based in Istanbul, Türkiye. Snapshot: September 28, 2026. https://revenuebase.ai/companies/legacy-system-modernization-firms/turkiye/istanbul.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Legacy system modernization firms based in Buenos Aires, Argentina
- Legacy system modernization firms based in Brisbane, Australia
- Legacy system modernization firms based in Melbourne, Australia
- Legacy system modernization firms based in Perth, Australia
- Legacy system modernization firms based in Sydney, Australia
- Legacy system modernization firms based in Dhaka, Bangladesh
Company intelligence · public preview
Top 15 legacy system modernization firms based in Istanbul, Türkiye
RevenueBase records 124 matching company records for legacy system modernization firms based in Istanbul, Türkiye, with 1,572 tracked contacts and 457 verified work emails.
This public preview shows 15 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 15 legacy system modernization firms based in Istanbul, Türkiye
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | BISbiscozum.com.tr HQ: Istanbul, TürkiyeReported employees: 51-200 | Istanbul, Türkiye | 51-200 | Exact match | 125 contacts → |
“Founded in 1994, BIS is a leading technology and service provider delivering packaged application solutions as well as custom software development, frameworks, integration…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: Istanbul, TürkiyeReported employees: 201-500 | Istanbul, Türkiye | 201-500 | Exact match | 102 contacts → |
“1975 yılında Sabancı Holding bünyesinde kurulan BİMSA, 40 yıllık deneyimi ile Türkiye’nin önde gelen bilgi teknolojisi şirketlerindendir.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Vmind Bilgi Teknolojilerivmind.com.tr HQ: Istanbul, TürkiyeReported employees: 51-200 | Istanbul, Türkiye | 51-200 | Exact match | 60 contacts → |
“vMind, offering systems integration and technology services with advanced degrees of expertise in national and international market, also with innovative and effective solutions…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Conevel Bilgi Teknolojileri A.Şconevel.com HQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 40 contacts → |
“Conevel Bilgi Teknolojileri” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Netcore Bilisim Hizmetleri A.Şnetcore.com.tr HQ: Istanbul, TürkiyeReported employees: 51-200 | Istanbul, Türkiye | 51-200 | Exact match | 40 contacts → |
“NetCore Bilişim, müşterilerine yüksek teknoloji bileşenleri kullanarak, konularında uzman kadrosu ile sektörde bilişim alanında ilerlemeyi hedefleyen kurumların bilgi ve iletişim…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | VNGRSvngrs.com HQ: Istanbul, TürkiyeReported employees: 51-200 | Istanbul, Türkiye | 51-200 | Exact match | 40 contacts → |
“VNGRS is an end-to-end solutions partner that helps enterprises and scale-ups build the desired digital experiences.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Volthreadvolthread.com HQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 23 contacts → |
“Open Source and Enterprise: Integrated IT Innovations Providing modern, integrated, open source and enterprise solutions and services for mid-to-large scale companies.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Onicorn Technologyonicorn.com.tr HQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 19 contacts → |
“Onicorn, 20 yılı aşkın deneyimi ve güçlü teknoloji ağıyla, işletmelerin dijital dönüşüm süreçlerinde güvenilir bir çözüm ortağıdır.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Codeliman Bilgi Teknolojileri VE Danışmanlıkcodeliman.com HQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 18 contacts → |
“We are a team of engineers and business professionals gathered to build an entrepreneurship aimed to think and act as an extension of our client's information technology teams.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Sinerjibt Bilgi Teknolojileri A.Şsinerjibt.com HQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 15 contacts → |
“Kurumların esnek hale gelmesi, sektörlerine ve sektörlerindeki gelişmelere daha hızlı uyum sağlaması, başarı için kaçınılmaz bir gerçek.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Atacomatacom.com.tr HQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 13 contacts → |
“As a technology and services provider, Atacom enables you to manage your operations, optimize your IT infrastructure, secure and transform your business into an intelligent…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | ONE Bilgi Sistemleri Tic. A. Şone.com.tr HQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 11 contacts → |
“One Sistem Hizmetleri, önde gelen rekabetçi kurumlara, “Proaktif Çözüm Ortağınız!” ilkesi ile 10 yılı aşkın bir süredir, dijitalleşme konularında danışmanlık ve bilgi…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | VOO IT Solutionsvoo.com.tr HQ: Istanbul, TürkiyeReported employees: 11-50 | Istanbul, Türkiye | 11-50 | Exact match | 6 contacts → |
“Voo IT Solutions, işletmelerin bilişim ihtiyaçlarının, güncel teknolojiyi kullanarak karşılanmasını sağlamak üzere 2011 yılında Nuevo adı altında kurulmuştur.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Vuca Solutionsvuca.com.tr HQ: Istanbul, TürkiyeReported employees: 1-10 | Istanbul, Türkiye | 1-10 | Exact match | 6 contacts → |
“Son teknolojileri ve en yeni hizmetleri yüksek kalite ile sunan VUCA, büyük veya küçük her türlü şirkete ölçeklenebilir çözümler sunmaktadır.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Simplix Teknoloji Hizmetlerisimplix.com.tr HQ: Istanbul, TürkiyeReported employees: 1-10 | Istanbul, Türkiye | 1-10 | Exact match | 5 contacts → |
“SimpliX olarak şirketinizin merkezine oturan teknolojiyi ve buna bağlı olarak ortaya çıkan ihtiyaçların karşılanmasını sizlere en BASİT hali ile sunuyoruz.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 15 of 124 company matches
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Legacy system modernization firms: dataset insights
September 28, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
124 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 124 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 28, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for legacy system modernization firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many legacy system modernization firms did RevenueBase find based in Istanbul, Türkiye?
The saved snapshot records 124 matching company records, 1,572 tracked contacts and 457 verified emails. The public preview displays 15 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 28, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 15 legacy system modernization firms based in Istanbul, Türkiye. Snapshot: September 28, 2026. https://revenuebase.ai/companies/legacy-system-modernization-firms/turkiye/istanbul.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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