Company lists · Data refreshed September 2026
Top 25 Legacy system modernization firms based in Japan
RevenueBase identified 164 company matches for legacy system modernization firms associated with Japan as of September 2026 and tracks 41,328 professional contacts across them, including 4,372 with verified work emails. Jing is the largest hub.
This list covers company matches for legacy system modernization firms associated with Japan, 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 firms based in Japan
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 38,436 contacts → | ||||
Exact match “NTT DATA – a part of NTT Group – IT and business services headquartered in Tokyo.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 221 contacts → | ||||
Exact match “Regrit Partners is a team of professionals.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 117 contacts → | ||||
Exact match “MetroWorks offers services in the Information Technology field.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 88 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 87 contacts → | ||||
Exact match “Information Strategy Technology, Inc.(IST), Pioneers of Digital Innovation, Mission Creating the future of businesses and society through strategic digital empowerment History…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 68 contacts → | ||||
Exact match “VTIAI1,800DX DCSDomainConsultingSolution DX ERPOdoo AIAIAIIoT IT24365 Made by VTIAI BFSI” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 50 contacts → | ||||
Exact match “DX Urumo××DX” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 49 contacts → | ||||
Exact match “Enterprise Systems.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 47 contacts → | ||||
Exact match “JP Tokyo is a leading management consulting and IT services firm, established in 2016 with a mission to empower global brands.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 34 contacts → | ||||
Exact match “Based in Tokyo, Japan, Tokyo Techies is a one-stop IT consulting firm that provides clients with innovative solutions to all their business problems through digital transformation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 34 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 25 contacts → | ||||
Exact match “CX #EX #DX #Zendesk #Clickup #Customerservice #Automation #HRtech #selfstorage VISIT https://storage.unwiredlogic.com/ for self-storage infomation!” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 25 contacts → | ||||
Exact match “ROUTE06 is a software company specializing in enterprise solutions and professional services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 25 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 17 contacts → | ||||
Exact match “We are dedicated to being at the forefront of global software consulting and product development.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 15 contacts → | ||||
Exact match “DX4 magonote Go Works Go InsightAI Go analytics” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 15 contacts → | ||||
Exact match “Mission Vision Value” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 14 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 12 contacts → | ||||
Exact match “Altera Consulting Co, Ltd.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 10 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 9 contacts → | ||||
Exact match “MissionDXFlagxs Project Management DX cloud 2022PM” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 9 contacts → | ||||
Exact match “SalesforceSaaSSpohabi” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 8 contacts → | ||||
Exact match “We promote digital shift in new business development and organisational improvement by leveraging our technical capabilities, knowledge, and experience in the ICT field.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 6 contacts → | ||||
Exact match “NTQNTQNTQ2022ITNTQICTDX NTQ1,5005SI5APAC2016NTQNTQ5101502028300 NTQ70%NTQNTQNTQ IPONTQ2027IPOGlobal IT Service Provider 20283002 NTQITITIT” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 6 contacts → | ||||
Exact match Recorded description not available. 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 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 25 of 164 legacy system modernization firms based in Japan
See the full list, filter by size, metro and specialty, and access 4,372 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Legacy system modernization firms based in Japan at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Japan, so it is reported there. Company counts and contact totals on this page are exact for Japan, over 164 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 Japan 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 4,372 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 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 Japan?
RevenueBase identified 164 company matches for legacy system modernization firms associated with Japan 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?
NTT Data 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 firms?
Jing leads with 35 company records, followed by Tokyo (19) and Xian (9).
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 4,372 professional contacts with verified work emails tracked across these 164 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 164 legacy system modernization firms based in Japan. Start with a free account, no credit card.
Download this list →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
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 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 25 legacy system modernization firms based in Japan
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 164 matching company records for legacy system modernization firms based in Japan, with 41,328 tracked contacts and 4,372 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 firms based in Japan
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 |  NTT Datanttdata.comHQ: Tokyo, JapanReported employees: 10001+ | Tokyo, Japan | 10001+ | Exact match | 38,436 contacts → |
“NTT DATA – a part of NTT Group – IT and business services headquartered in Tokyo.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Regrit Partners, INCregrit-p.comHQ: 千代田区, JapanReported employees: 201-500 | 千代田区, Japan | 201-500 | Exact match | 221 contacts → |
“Regrit Partners is a team of professionals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Metroworksmetroworks.co.jpHQ: Minato-ku, JapanReported employees: Not recorded | Minato-ku, Japan | Not recorded | Exact match | 117 contacts → |
“MetroWorks offers services in the Information Technology field.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Jbcc Corporationjbcc.co.jp HQ: Chuo, JapanReported employees: 11-50 | Chuo, Japan | 11-50 | Exact match | 88 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 5 | 株式会社情報戦略テクノロジーis-tech.co.jp HQ: 渋谷区, JapanReported employees: 201-500 | 渋谷区, Japan | 201-500 | Exact match | 87 contacts → |
“Information Strategy Technology, Inc.(IST), Pioneers of Digital Innovation, Mission Creating the future of businesses and society through strategic digital empowerment History…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  VTI Japan Co., LTDvtijapan.co.jpHQ: 新宿区, JapanReported employees: 501-1,000 | 新宿区, Japan | 501-1,000 | Exact match | 68 contacts → |
“VTIAI1,800DX DCSDomainConsultingSolution DX ERPOdoo AIAIAIIoT IT24365 Made by VTIAI BFSI” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  株式会社フェズfez-inc.jpHQ: 千代田区, JapanReported employees: 51-200 | 千代田区, Japan | 51-200 | Exact match | 50 contacts → |
“DX Urumo××DX” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  The Plant Co. LTDthe-plant.comHQ: Minato-ku, JapanReported employees: 51-200 | Minato-ku, Japan | 51-200 | Exact match | 49 contacts → |
“Enterprise Systems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  JP Tokyo & Co. INCjptokyo.co.jpHQ: Tokyo, JapanReported employees: 201-500 | Tokyo, Japan | 201-500 | Exact match | 47 contacts → |
“JP Tokyo is a leading management consulting and IT services firm, established in 2016 with a mission to empower global brands.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Tokyo Techiestokyotechies.comHQ: Tokyo, JapanReported employees: 11-50 | Tokyo, Japan | 11-50 | Exact match | 34 contacts → |
“Based in Tokyo, Japan, Tokyo Techies is a one-stop IT consulting firm that provides clients with innovative solutions to all their business problems through digital transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 株式会社プリマジェストprimagest.co.jp HQ: 川崎市幸区, JapanReported employees: 1,001-5,000 | 川崎市幸区, Japan | 1,001-5,000 | Exact match | 34 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 |  Unwired Logicunwiredlogic.comHQ: Minato Ku, JapanReported employees: 11-50 | Minato Ku, Japan | 11-50 | Exact match | 25 contacts → |
“CX #EX #DX #Zendesk #Clickup #Customerservice #Automation #HRtech #selfstorage VISIT https://storage.unwiredlogic.com/ for self-storage infomation!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Route06, INCroute06.comHQ: 千代田区, JapanReported employees: 51-200 | 千代田区, Japan | 51-200 | Exact match | 25 contacts → |
“ROUTE06 is a software company specializing in enterprise solutions and professional services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Zein株式会社zein.jpHQ: 港区, JapanReported employees: 51-200 | 港区, Japan | 51-200 | Exact match | 25 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 |  Onepixlabonepixlab.comHQ: Suginami, JapanReported employees: 11-50 | Suginami, Japan | 11-50 | Exact match | 17 contacts → |
“We are dedicated to being at the forefront of global software consulting and product development.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  ゴウリカ株式会社gourica.co.jpHQ: 渋谷区, JapanReported employees: 51-200 | 渋谷区, Japan | 51-200 | Exact match | 15 contacts → |
“DX4 magonote Go Works Go InsightAI Go analytics” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | 株 トランスコスモス・デジタル・テクノロジー (transcosmos Digital Technology Inc.)trans-cosmos-digtec.co.jp HQ: 横浜市西区北幸2丁目8-4, JapanReported employees: 201-500 | 横浜市西区北幸2丁目8-4, Japan | 201-500 | Exact match | 15 contacts → |
“Mission Vision Value” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 東京システムハウス(株)tsh-world.co.jp HQ: 品川区, JapanReported employees: 51-200 | 品川区, Japan | 51-200 | Exact match | 14 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 |  Altera Consultingalteraconsulting.comHQ: Tokyo, JapanReported employees: 11-50 | Tokyo, Japan | 11-50 | Exact match | 12 contacts → |
“Altera Consulting Co, Ltd.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Marutto株式会社marutto.coHQ: 大阪市中央区, JapanReported employees: 1-10 | 大阪市中央区, Japan | 1-10 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 |  フラッグス株式会社flagxs.comHQ: 渋谷区, JapanReported employees: 11-50 | 渋谷区, Japan | 11-50 | Exact match | 9 contacts → |
“MissionDXFlagxs Project Management DX cloud 2022PM” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Crefilcrefil.comHQ: 中央区, JapanReported employees: 11-50 | 中央区, Japan | 11-50 | Exact match | 9 contacts → |
“SalesforceSaaSSpohabi” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Third Scopethird-scope.com HQ: Shibuya, JapanReported employees: 11-50 | Shibuya, Japan | 11-50 | Exact match | 8 contacts → |
“We promote digital shift in new business development and organisational improvement by leveraging our technical capabilities, knowledge, and experience in the ICT field.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  NTQ Consulting Japanjp.ntq.com.vnHQ: 千代田区, JapanReported employees: 11-50 | 千代田区, Japan | 11-50 | Exact match | 6 contacts → |
“NTQNTQNTQ2022ITNTQICTDX NTQ1,5005SI5APAC2016NTQNTQ5101502028300 NTQ70%NTQNTQNTQ IPONTQ2027IPOGlobal IT Service Provider 20283002 NTQITITIT” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Leave A Nest Knowledge Co., LTDk.lne.stHQ: 新宿区, JapanReported employees: 1-10 | 新宿区, Japan | 1-10 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 164 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 firms: 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
161 records in the displayed employee bands.
3 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 Japan, so it is reported there. Company counts and contact totals on this page are exact for Japan, over 164 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 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 Japan?
The saved snapshot records 164 matching company records, 41,328 tracked contacts and 4,372 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 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 25 legacy system modernization firms based in Japan. Snapshot: September 20, 2026. https://revenuebase.ai/companies/legacy-system-modernization-firms/japan.
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 25 legacy system modernization firms based in Japan
RevenueBase records 164 matching company records for legacy system modernization firms based in Japan, with 41,328 tracked contacts and 4,372 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 firms based in Japan
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 | NTT Datanttdata.com HQ: Tokyo, JapanReported employees: 10001+ | Tokyo, Japan | 10001+ | Exact match | 38,436 contacts → |
“NTT DATA – a part of NTT Group – IT and business services headquartered in Tokyo.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Regrit Partners, INCregrit-p.com HQ: 千代田区, JapanReported employees: 201-500 | 千代田区, Japan | 201-500 | Exact match | 221 contacts → |
“Regrit Partners is a team of professionals.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Metroworksmetroworks.co.jp HQ: Minato-ku, JapanReported employees: Not recorded | Minato-ku, Japan | Not recorded | Exact match | 117 contacts → |
“MetroWorks offers services in the Information Technology field.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Jbcc Corporationjbcc.co.jp HQ: Chuo, JapanReported employees: 11-50 | Chuo, Japan | 11-50 | Exact match | 88 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 5 | 株式会社情報戦略テクノロジーis-tech.co.jp HQ: 渋谷区, JapanReported employees: 201-500 | 渋谷区, Japan | 201-500 | Exact match | 87 contacts → |
“Information Strategy Technology, Inc.(IST), Pioneers of Digital Innovation, Mission Creating the future of businesses and society through strategic digital empowerment History…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | VTI Japan Co., LTDvtijapan.co.jp HQ: 新宿区, JapanReported employees: 501-1,000 | 新宿区, Japan | 501-1,000 | Exact match | 68 contacts → |
“VTIAI1,800DX DCSDomainConsultingSolution DX ERPOdoo AIAIAIIoT IT24365 Made by VTIAI BFSI” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 株式会社フェズfez-inc.jp HQ: 千代田区, JapanReported employees: 51-200 | 千代田区, Japan | 51-200 | Exact match | 50 contacts → |
“DX Urumo××DX” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | The Plant Co. LTDthe-plant.com HQ: Minato-ku, JapanReported employees: 51-200 | Minato-ku, Japan | 51-200 | Exact match | 49 contacts → |
“Enterprise Systems.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | JP Tokyo & Co. INCjptokyo.co.jp HQ: Tokyo, JapanReported employees: 201-500 | Tokyo, Japan | 201-500 | Exact match | 47 contacts → |
“JP Tokyo is a leading management consulting and IT services firm, established in 2016 with a mission to empower global brands.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Tokyo Techiestokyotechies.com HQ: Tokyo, JapanReported employees: 11-50 | Tokyo, Japan | 11-50 | Exact match | 34 contacts → |
“Based in Tokyo, Japan, Tokyo Techies is a one-stop IT consulting firm that provides clients with innovative solutions to all their business problems through digital transformation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | 株式会社プリマジェストprimagest.co.jp HQ: 川崎市幸区, JapanReported employees: 1,001-5,000 | 川崎市幸区, Japan | 1,001-5,000 | Exact match | 34 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | Unwired Logicunwiredlogic.com HQ: Minato Ku, JapanReported employees: 11-50 | Minato Ku, Japan | 11-50 | Exact match | 25 contacts → |
“CX #EX #DX #Zendesk #Clickup #Customerservice #Automation #HRtech #selfstorage VISIT https://storage.unwiredlogic.com/ for self-storage infomation!” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Route06, INCroute06.com HQ: 千代田区, JapanReported employees: 51-200 | 千代田区, Japan | 51-200 | Exact match | 25 contacts → |
“ROUTE06 is a software company specializing in enterprise solutions and professional services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Zein株式会社zein.jp HQ: 港区, JapanReported employees: 51-200 | 港区, Japan | 51-200 | Exact match | 25 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 | Onepixlabonepixlab.com HQ: Suginami, JapanReported employees: 11-50 | Suginami, Japan | 11-50 | Exact match | 17 contacts → |
“We are dedicated to being at the forefront of global software consulting and product development.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | ゴウリカ株式会社gourica.co.jp HQ: 渋谷区, JapanReported employees: 51-200 | 渋谷区, Japan | 51-200 | Exact match | 15 contacts → |
“DX4 magonote Go Works Go InsightAI Go analytics” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | 株 トランスコスモス・デジタル・テクノロジー (transcosmos Digital Technology Inc.)trans-cosmos-digtec.co.jp HQ: 横浜市西区北幸2丁目8-4, JapanReported employees: 201-500 | 横浜市西区北幸2丁目8-4, Japan | 201-500 | Exact match | 15 contacts → |
“Mission Vision Value” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 東京システムハウス(株)tsh-world.co.jp HQ: 品川区, JapanReported employees: 51-200 | 品川区, Japan | 51-200 | Exact match | 14 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 | Altera Consultingalteraconsulting.com HQ: Tokyo, JapanReported employees: 11-50 | Tokyo, Japan | 11-50 | Exact match | 12 contacts → |
“Altera Consulting Co, Ltd.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Marutto株式会社marutto.co HQ: 大阪市中央区, JapanReported employees: 1-10 | 大阪市中央区, Japan | 1-10 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | フラッグス株式会社flagxs.com HQ: 渋谷区, JapanReported employees: 11-50 | 渋谷区, Japan | 11-50 | Exact match | 9 contacts → |
“MissionDXFlagxs Project Management DX cloud 2022PM” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Crefilcrefil.com HQ: 中央区, JapanReported employees: 11-50 | 中央区, Japan | 11-50 | Exact match | 9 contacts → |
“SalesforceSaaSSpohabi” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Third Scopethird-scope.com HQ: Shibuya, JapanReported employees: 11-50 | Shibuya, Japan | 11-50 | Exact match | 8 contacts → |
“We promote digital shift in new business development and organisational improvement by leveraging our technical capabilities, knowledge, and experience in the ICT field.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | NTQ Consulting Japanjp.ntq.com.vn HQ: 千代田区, JapanReported employees: 11-50 | 千代田区, Japan | 11-50 | Exact match | 6 contacts → |
“NTQNTQNTQ2022ITNTQICTDX NTQ1,5005SI5APAC2016NTQNTQ5101502028300 NTQ70%NTQNTQNTQ IPONTQ2027IPOGlobal IT Service Provider 20283002 NTQITITIT” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Leave A Nest Knowledge Co., LTDk.lne.st HQ: 新宿区, JapanReported employees: 1-10 | 新宿区, Japan | 1-10 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 164 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 firms: 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
161 records in the displayed employee bands.
3 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 Japan, so it is reported there. Company counts and contact totals on this page are exact for Japan, over 164 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 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 Japan?
The saved snapshot records 164 matching company records, 41,328 tracked contacts and 4,372 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 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 25 legacy system modernization firms based in Japan. Snapshot: September 20, 2026. https://revenuebase.ai/companies/legacy-system-modernization-firms/japan.
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