Company lists · Data refreshed September 2026
Top 25 Legacy system modernization based in Czechia
RevenueBase identified 42 company matches for legacy system modernization associated with Czechia as of September 2026 and tracks 769 professional contacts across them, including 451 with verified work emails. Prague is the largest hub.
This list covers company matches for legacy system modernization associated with Czechia, 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 20, 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 25 largest legacy system modernization based in Czechia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 121 contacts → | ||||
Exact match “O2 IT Services je expertem v oblasti informačních technologií.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 113 contacts → | ||||
Exact match “We deliver technical resources, software and comprehensive services in the implementation and integration of information systems, network infrastructure services and supervision…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 75 contacts → | ||||
Exact match “GEM System působí na trhu od roku 2004 a dodává komplexní systémová a integrační řešení.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 68 contacts → | ||||
Exact match “VÍTKOVICE IT SOLUTIONS employs an experienced team of professionals who can design a comprehensive solution that will demonstrably increase efficiency.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 55 contacts → | ||||
Exact match “Jsme lídrem a zkušeným poskytovatelem inovativních IT řešení napříč různými odvětvími.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 45 contacts → | ||||
Exact match “We help companies implement technological innovation through expert consulting and software development.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 45 contacts → | ||||
Exact match “Zajistíme pro vás komplexní IT služby v těchto oblastech Microsoft 365, Networking, Serverová řešení a Bezpečnost IT.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 43 contacts → | ||||
Exact match “T-SOFT – Information systems and security on demand T-SOFT is an IT company that concentrates mainly on specialised information systems, integration and security, capable to…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 23 contacts → | ||||
Exact match “Společnost GC System a.s.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 16 contacts → | ||||
Exact match “For over 15 years on the market, we have successfully carried out a number of strategic, unique and specific projects which have increased our clients’ efficiency, reduced their…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 12 contacts → | ||||
Exact match “Poskytujeme specializované služby v oblasti IT s důrazem na infrastrukturní projekty a systémovou integraci.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 12 contacts → | ||||
Exact match “The Voksys Company was founded in 1997.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 11 contacts → | ||||
Exact match “We are a software development company that migrates their clients' outdated applications to modern technologies.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 10 contacts → | ||||
Exact match “Jsme IT společnost zabývající se převážně outsourcingem IT služeb, kybernetickou bezpečností, dodávkami a implementací technologií a SW.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 10 contacts → | ||||
Exact match “We specialize in development, customization and maintenance of information systems.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 10 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 5 contacts → | ||||
Exact match “TechOne is a Prague-based IT consultancy.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 5 contacts → | ||||
Exact match “Outsourcing IT – nechte to na nás Pracujeme profesionálně, kreativně a rychle.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 5 contacts → | ||||
Exact match “B-Tree Consulting is an independent advisory partner for leadership teams facing change in core business systems, processes, data, reporting, vendors and AI.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match “Firma SYSCOM Software, spol.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 2 contacts → | ||||
Exact match “At Greenterra s.r.o, we specialize in IT Infrastructure Architecture and Project Management.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match “CAPS Consult is an IT consulting company established in 2015, focused on analysis, design and development of custom IT solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 1 contacts → | ||||
Exact match “Svým zákazníkům nabízíme komplexní a profesionální IT služby zajištěné týmem našich zkušených odborníků: Zaměřujeme se především na:> vývoj na zakázku,> rovoz systémů,>…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 1 contacts → | ||||
Exact match “Founded by Stefan Moravcik, a seasoned System Architect, Network Engineer, and Developer, Virsas brings together extensive expertise and a track record of success in helping…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 1 contacts → | ||||
Exact match “We provide comprehensive services in the field of information technology with a focus on creating web applications and securing business data and devices.” Recorded in the RevenueBase company graph · Sep 20, 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”. 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 25 of 42 legacy system modernization based in Czechia
See the full list, filter by size, metro and specialty, and access 451 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Legacy system modernization based in Czechia at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Czechia, so it is reported there. Company counts and contact totals on this page are exact for Czechia, over 42 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 Czechia whose business descriptions match “legacy system modernization” 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 451 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 20, 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”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many legacy system modernization are there based in Czechia?
RevenueBase identified 42 company matches for legacy system modernization associated with Czechia 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?
O2 IT Services S.R.O tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most legacy system modernization?
Prague leads with 18 company records, followed by Brno (4) and Ostrava (3).
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 451 professional contacts with verified work emails tracked across these 42 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 42 legacy system modernization based in Czechia. Start with a free account, no credit card.
Download this list →Related lists
Legacy system modernization by geography
- Legacy system modernization based in Brisbane, Australia
- Legacy system modernization based in Melbourne, Australia
- Legacy system modernization based in Sydney, Australia
- Legacy system modernization based in Belo Horizonte, Brazil
- Legacy system modernization based in Curitiba, Brazil
- Legacy system modernization based in Rio De Janeiro, Brazil
- Legacy system modernization based in Sao Paulo, Brazil
- Legacy system modernization based in Calgary, Canada
- Legacy system modernization based in Mississauga, Canada
- Legacy system modernization based in Montreal, Canada
- Legacy system modernization based in Ottawa, Canada
- Legacy system modernization based in Toronto, Canada
Browse the directory
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Legacy system modernization based in Brisbane, Australia
- Legacy system modernization based in Melbourne, Australia
- Legacy system modernization based in Sydney, Australia
- Legacy system modernization based in Belo Horizonte, Brazil
- Legacy system modernization based in Curitiba, Brazil
- Legacy system modernization based in Rio De Janeiro, Brazil
Company intelligence · public preview
Top 25 legacy system modernization based in Czechia
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 42 matching company records for legacy system modernization based in Czechia, with 769 tracked contacts and 451 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 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 25 legacy system modernization based in Czechia
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 |  O2 IT Services S.R.Oo2its.czHQ: Praha 4 - Michle, Czech RepublicReported employees: 201-500 | Praha 4 - Michle, Czech Republic | 201-500 | Exact match | 121 contacts → |
“O2 IT Services je expertem v oblasti informačních technologií.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Datasys S.R.Odatasys.czHQ: Prague 3, Czech RepublicReported employees: 51-200 | Prague 3, Czech Republic | 51-200 | Exact match | 113 contacts → |
“We deliver technical resources, software and comprehensive services in the implementation and integration of information systems, network infrastructure services and supervision…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  GEM System A.Sgemsystem.czHQ: Praha 4 - Nusle, Czech RepublicReported employees: 51-200 | Praha 4 - Nusle, Czech Republic | 51-200 | Exact match | 75 contacts → |
“GEM System působí na trhu od roku 2004 a dodává komplexní systémová a integrační řešení.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Vítkovice IT Solutionsvitsol.czHQ: Ostrava, Czech RepublicReported employees: 51-200 | Ostrava, Czech Republic | 51-200 | Exact match | 68 contacts → |
“VÍTKOVICE IT SOLUTIONS employs an experienced team of professionals who can design a comprehensive solution that will demonstrably increase efficiency.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Datalite, Spol. S R.Odatalite.czHQ: Praha 1, Czech RepublicReported employees: 51-200 | Praha 1, Czech Republic | 51-200 | Exact match | 55 contacts → |
“Jsme lídrem a zkušeným poskytovatelem inovativních IT řešení napříč různými odvětvími.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Devcitydevcity.techHQ: Prague, Czech RepublicReported employees: 51-200 | Prague, Czech Republic | 51-200 | Exact match | 45 contacts → |
“We help companies implement technological innovation through expert consulting and software development.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  ARIONarion.czHQ: Prague, Czech RepublicReported employees: 51-200 | Prague, Czech Republic | 51-200 | Exact match | 45 contacts → |
“Zajistíme pro vás komplexní IT služby v těchto oblastech Microsoft 365, Networking, Serverová řešení a Bezpečnost IT.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  T-Soft A.Stsoft.czHQ: Praha 4, Czech RepublicReported employees: 51-200 | Praha 4, Czech Republic | 51-200 | Exact match | 43 contacts → |
“T-SOFT – Information systems and security on demand T-SOFT is an IT company that concentrates mainly on specialised information systems, integration and security, capable to…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  GC System A.Sgcsystem.czHQ: Brno, Czech RepublicReported employees: 51-200 | Brno, Czech Republic | 51-200 | Exact match | 23 contacts → |
“Společnost GC System a.s.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Clarystone S.R.Oclarystone.comHQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 16 contacts → |
“For over 15 years on the market, we have successfully carried out a number of strategic, unique and specific projects which have increased our clients’ efficiency, reduced their…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  BIT Servis Spol. S R.Obitservis.czHQ: Praha 4, Czech RepublicReported employees: 11-50 | Praha 4, Czech Republic | 11-50 | Exact match | 12 contacts → |
“Poskytujeme specializované služby v oblasti IT s důrazem na infrastrukturní projekty a systémovou integraci.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Voksys, S.R.Ovoksys.czHQ: Praha 5, Czech RepublicReported employees: 11-50 | Praha 5, Czech Republic | 11-50 | Exact match | 12 contacts → |
“The Voksys Company was founded in 1997.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  webscope.iowebscope.ioHQ: Brno, Czech RepublicReported employees: 11-50 | Brno, Czech Republic | 11-50 | Exact match | 11 contacts → |
“We are a software development company that migrates their clients' outdated applications to modern technologies.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Vertix S.R.Overtix.czHQ: Pardubice, Czech RepublicReported employees: 11-50 | Pardubice, Czech Republic | 11-50 | Exact match | 10 contacts → |
“Jsme IT společnost zabývající se převážně outsourcingem IT služeb, kybernetickou bezpečností, dodávkami a implementací technologií a SW.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Dataobjects, S.R.Odataobjects.czHQ: Ostrava, Czech RepublicReported employees: 11-50 | Ostrava, Czech Republic | 11-50 | Exact match | 10 contacts → |
“We specialize in development, customization and maintenance of information systems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | leris.czleris.cz HQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 |  Techonetechone.czHQ: Praha 7, Czech RepublicReported employees: 11-50 | Praha 7, Czech Republic | 11-50 | Exact match | 5 contacts → |
“TechOne is a Prague-based IT consultancy.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Revolution ITrevolutionit.czHQ: Liberec, Czech RepublicReported employees: 11-50 | Liberec, Czech Republic | 11-50 | Exact match | 5 contacts → |
“Outsourcing IT – nechte to na nás Pracujeme profesionálně, kreativně a rychle.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  B-Tree Consultingb-treeconsulting.comHQ: Prague, Czech RepublicReported employees: 1-10 | Prague, Czech Republic | 1-10 | Exact match | 5 contacts → |
“B-Tree Consulting is an independent advisory partner for leadership teams facing change in core business systems, processes, data, reporting, vendors and AI.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: CzechiaReported employees: 51-200 | Czechia | 51-200 | Exact match | 3 contacts → |
“Firma SYSCOM Software, spol.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Greenterra S.R.Ogreenterra.czHQ: Prague, Czech RepublicReported employees: 1-10 | Prague, Czech Republic | 1-10 | Exact match | 2 contacts → |
“At Greenterra s.r.o, we specialize in IT Infrastructure Architecture and Project Management.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Caps Consultcapsconsult.comHQ: Prague, Czech RepublicReported employees: 1-10 | Prague, Czech Republic | 1-10 | Exact match | 2 contacts → |
“CAPS Consult is an IT consulting company established in 2015, focused on analysis, design and development of custom IT solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Skill S.R.Oskill.czHQ: Praha 8, Czech RepublicReported employees: 11-50 | Praha 8, Czech Republic | 11-50 | Exact match | 1 contacts → |
“Svým zákazníkům nabízíme komplexní a profesionální IT služby zajištěné týmem našich zkušených odborníků: Zaměřujeme se především na:> vývoj na zakázku,> rovoz systémů,>…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Virsasvirsas.comHQ: Prague, Czech RepublicReported employees: 1-10 | Prague, Czech Republic | 1-10 | Exact match | 1 contacts → |
“Founded by Stefan Moravcik, a seasoned System Architect, Network Engineer, and Developer, Virsas brings together extensive expertise and a track record of success in helping…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  GUROTgurot.czHQ: Brno, Czech RepublicReported employees: 1-10 | Brno, Czech Republic | 1-10 | Exact match | 1 contacts → |
“We provide comprehensive services in the field of information technology with a focus on creating web applications and securing business data and devices.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 42 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Legacy system modernization: dataset insights
September 20, 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
42 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 worldwide rather than for Czechia, so it is reported there. Company counts and contact totals on this page are exact for Czechia, over 42 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 20, 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?
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 did RevenueBase find based in Czechia?
The saved snapshot records 42 matching company records, 769 tracked contacts and 451 verified emails. The public preview displays 25 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 20, 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 by geography
- Legacy system modernization based in Brisbane, Australia
- Legacy system modernization based in Melbourne, Australia
- Legacy system modernization based in Sydney, Australia
- Legacy system modernization based in Belo Horizonte, Brazil
- Legacy system modernization based in Curitiba, Brazil
- Legacy system modernization based in Rio De Janeiro, Brazil
- Legacy system modernization based in Sao Paulo, Brazil
- Legacy system modernization based in Calgary, Canada
- Legacy system modernization based in Mississauga, Canada
- Legacy system modernization based in Montreal, Canada
- Legacy system modernization based in Ottawa, Canada
- Legacy system modernization based in Toronto, Canada
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 legacy system modernization based in Czechia. Snapshot: September 20, 2026. https://revenuebase.ai/companies/legacy-system-modernization/czechia.
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 based in Brisbane, Australia
- Legacy system modernization based in Melbourne, Australia
- Legacy system modernization based in Sydney, Australia
- Legacy system modernization based in Belo Horizonte, Brazil
- Legacy system modernization based in Curitiba, Brazil
- Legacy system modernization based in Rio De Janeiro, Brazil
Company intelligence · public preview
Top 25 legacy system modernization based in Czechia
RevenueBase records 42 matching company records for legacy system modernization based in Czechia, with 769 tracked contacts and 451 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 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 25 legacy system modernization based in Czechia
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 | O2 IT Services S.R.Oo2its.cz HQ: Praha 4 - Michle, Czech RepublicReported employees: 201-500 | Praha 4 - Michle, Czech Republic | 201-500 | Exact match | 121 contacts → |
“O2 IT Services je expertem v oblasti informačních technologií.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Datasys S.R.Odatasys.cz HQ: Prague 3, Czech RepublicReported employees: 51-200 | Prague 3, Czech Republic | 51-200 | Exact match | 113 contacts → |
“We deliver technical resources, software and comprehensive services in the implementation and integration of information systems, network infrastructure services and supervision…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | GEM System A.Sgemsystem.cz HQ: Praha 4 - Nusle, Czech RepublicReported employees: 51-200 | Praha 4 - Nusle, Czech Republic | 51-200 | Exact match | 75 contacts → |
“GEM System působí na trhu od roku 2004 a dodává komplexní systémová a integrační řešení.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Vítkovice IT Solutionsvitsol.cz HQ: Ostrava, Czech RepublicReported employees: 51-200 | Ostrava, Czech Republic | 51-200 | Exact match | 68 contacts → |
“VÍTKOVICE IT SOLUTIONS employs an experienced team of professionals who can design a comprehensive solution that will demonstrably increase efficiency.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Datalite, Spol. S R.Odatalite.cz HQ: Praha 1, Czech RepublicReported employees: 51-200 | Praha 1, Czech Republic | 51-200 | Exact match | 55 contacts → |
“Jsme lídrem a zkušeným poskytovatelem inovativních IT řešení napříč různými odvětvími.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Devcitydevcity.tech HQ: Prague, Czech RepublicReported employees: 51-200 | Prague, Czech Republic | 51-200 | Exact match | 45 contacts → |
“We help companies implement technological innovation through expert consulting and software development.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | ARIONarion.cz HQ: Prague, Czech RepublicReported employees: 51-200 | Prague, Czech Republic | 51-200 | Exact match | 45 contacts → |
“Zajistíme pro vás komplexní IT služby v těchto oblastech Microsoft 365, Networking, Serverová řešení a Bezpečnost IT.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | T-Soft A.Stsoft.cz HQ: Praha 4, Czech RepublicReported employees: 51-200 | Praha 4, Czech Republic | 51-200 | Exact match | 43 contacts → |
“T-SOFT – Information systems and security on demand T-SOFT is an IT company that concentrates mainly on specialised information systems, integration and security, capable to…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | GC System A.Sgcsystem.cz HQ: Brno, Czech RepublicReported employees: 51-200 | Brno, Czech Republic | 51-200 | Exact match | 23 contacts → |
“Společnost GC System a.s.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Clarystone S.R.Oclarystone.com HQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 16 contacts → |
“For over 15 years on the market, we have successfully carried out a number of strategic, unique and specific projects which have increased our clients’ efficiency, reduced their…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | BIT Servis Spol. S R.Obitservis.cz HQ: Praha 4, Czech RepublicReported employees: 11-50 | Praha 4, Czech Republic | 11-50 | Exact match | 12 contacts → |
“Poskytujeme specializované služby v oblasti IT s důrazem na infrastrukturní projekty a systémovou integraci.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Voksys, S.R.Ovoksys.cz HQ: Praha 5, Czech RepublicReported employees: 11-50 | Praha 5, Czech Republic | 11-50 | Exact match | 12 contacts → |
“The Voksys Company was founded in 1997.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | webscope.iowebscope.io HQ: Brno, Czech RepublicReported employees: 11-50 | Brno, Czech Republic | 11-50 | Exact match | 11 contacts → |
“We are a software development company that migrates their clients' outdated applications to modern technologies.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Vertix S.R.Overtix.cz HQ: Pardubice, Czech RepublicReported employees: 11-50 | Pardubice, Czech Republic | 11-50 | Exact match | 10 contacts → |
“Jsme IT společnost zabývající se převážně outsourcingem IT služeb, kybernetickou bezpečností, dodávkami a implementací technologií a SW.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Dataobjects, S.R.Odataobjects.cz HQ: Ostrava, Czech RepublicReported employees: 11-50 | Ostrava, Czech Republic | 11-50 | Exact match | 10 contacts → |
“We specialize in development, customization and maintenance of information systems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | leris.czleris.cz HQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 | Techonetechone.cz HQ: Praha 7, Czech RepublicReported employees: 11-50 | Praha 7, Czech Republic | 11-50 | Exact match | 5 contacts → |
“TechOne is a Prague-based IT consultancy.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Revolution ITrevolutionit.cz HQ: Liberec, Czech RepublicReported employees: 11-50 | Liberec, Czech Republic | 11-50 | Exact match | 5 contacts → |
“Outsourcing IT – nechte to na nás Pracujeme profesionálně, kreativně a rychle.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | B-Tree Consultingb-treeconsulting.com HQ: Prague, Czech RepublicReported employees: 1-10 | Prague, Czech Republic | 1-10 | Exact match | 5 contacts → |
“B-Tree Consulting is an independent advisory partner for leadership teams facing change in core business systems, processes, data, reporting, vendors and AI.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: CzechiaReported employees: 51-200 | Czechia | 51-200 | Exact match | 3 contacts → |
“Firma SYSCOM Software, spol.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Greenterra S.R.Ogreenterra.cz HQ: Prague, Czech RepublicReported employees: 1-10 | Prague, Czech Republic | 1-10 | Exact match | 2 contacts → |
“At Greenterra s.r.o, we specialize in IT Infrastructure Architecture and Project Management.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Caps Consultcapsconsult.com HQ: Prague, Czech RepublicReported employees: 1-10 | Prague, Czech Republic | 1-10 | Exact match | 2 contacts → |
“CAPS Consult is an IT consulting company established in 2015, focused on analysis, design and development of custom IT solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Skill S.R.Oskill.cz HQ: Praha 8, Czech RepublicReported employees: 11-50 | Praha 8, Czech Republic | 11-50 | Exact match | 1 contacts → |
“Svým zákazníkům nabízíme komplexní a profesionální IT služby zajištěné týmem našich zkušených odborníků: Zaměřujeme se především na:> vývoj na zakázku,> rovoz systémů,>…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Virsasvirsas.com HQ: Prague, Czech RepublicReported employees: 1-10 | Prague, Czech Republic | 1-10 | Exact match | 1 contacts → |
“Founded by Stefan Moravcik, a seasoned System Architect, Network Engineer, and Developer, Virsas brings together extensive expertise and a track record of success in helping…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | GUROTgurot.cz HQ: Brno, Czech RepublicReported employees: 1-10 | Brno, Czech Republic | 1-10 | Exact match | 1 contacts → |
“We provide comprehensive services in the field of information technology with a focus on creating web applications and securing business data and devices.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 42 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Legacy system modernization: dataset insights
September 20, 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
42 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 worldwide rather than for Czechia, so it is reported there. Company counts and contact totals on this page are exact for Czechia, over 42 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 20, 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?
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 did RevenueBase find based in Czechia?
The saved snapshot records 42 matching company records, 769 tracked contacts and 451 verified emails. The public preview displays 25 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 20, 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 by geography
- Legacy system modernization based in Brisbane, Australia
- Legacy system modernization based in Melbourne, Australia
- Legacy system modernization based in Sydney, Australia
- Legacy system modernization based in Belo Horizonte, Brazil
- Legacy system modernization based in Curitiba, Brazil
- Legacy system modernization based in Rio De Janeiro, Brazil
- Legacy system modernization based in Sao Paulo, Brazil
- Legacy system modernization based in Calgary, Canada
- Legacy system modernization based in Mississauga, Canada
- Legacy system modernization based in Montreal, Canada
- Legacy system modernization based in Ottawa, Canada
- Legacy system modernization based in Toronto, Canada
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 legacy system modernization based in Czechia. Snapshot: September 20, 2026. https://revenuebase.ai/companies/legacy-system-modernization/czechia.
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 based in Brisbane, Australia
- Legacy system modernization based in Melbourne, Australia
- Legacy system modernization based in Sydney, Australia
- Legacy system modernization based in Belo Horizonte, Brazil
- Legacy system modernization based in Curitiba, Brazil
- Legacy system modernization based in Rio De Janeiro, Brazil