Company lists · Data refreshed September 2026

Top 25 Government technology consulting firms based in Japan

RevenueBase identified 139 company matches for government technology consulting firms associated with Japan as of September 2026 and tracks 41,709 professional contacts across them, including 4,405 with verified work emails. Jing is the largest hub.

This list covers company matches for government technology consulting 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 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
139Companies
41,709Contacts tracked
4,405Verified emails
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The 25 largest government technology consulting firms based in Japan

Ranked by team size
Top 25 of 139 company matches for government technology consulting firms based in Japan, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchTokyo, JapanHQ recorded Sep 21, 202610001+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 21, 2026 · View company records in RevenueBase
2Exact match千代田区, JapanHQ recorded Sep 21, 2026501-1,000290 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact match千代田区, JapanHQ recorded Sep 21, 2026201-500221 contacts →

Exact match

“Regrit Partners is a team of professionals.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact match千代田区, JapanHQ recorded Sep 21, 2026201-500177 contacts →

Exact match

“Japan.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchMinato-ku, JapanHQ recorded Sep 21, 2026n/a117 contacts →

Exact match

“MetroWorks offers services in the Information Technology field.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchChuo, JapanHQ recorded Sep 21, 202611-5088 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact match新宿区, JapanHQ recorded Sep 21, 2026501-1,00068 contacts →

Exact match

“VTIAI1,800DX DCSDomainConsultingSolution DX ERPOdoo AIAIAIIoT IT24365 Made by VTIAI BFSI”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchTokyo, JapanHQ recorded Sep 21, 2026n/a54 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact match千代田区, JapanHQ recorded Sep 21, 202651-20050 contacts →

Exact match

“DX Urumo××DX”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchTokyo, JapanHQ recorded Sep 21, 2026201-50047 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 21, 2026 · View company records in RevenueBase
11Exact matchTokyo, JapanHQ recorded Sep 21, 202611-5034 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 21, 2026 · View company records in RevenueBase
12Exact match港区, JapanHQ recorded Sep 21, 202651-20025 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchMinato-Ku, JapanHQ recorded Sep 21, 20261,001-5,00015 contacts →

Exact match

“By combining system integration, consulting, and think tank capabilities, the DENTSU SOKEN Group delivers optimum solutions for customers in terms of both value creation and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchTokyo, JapanHQ recorded Sep 21, 202611-5012 contacts →

Exact match

“Altera Consulting Co, Ltd.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact match千代田区, JapanHQ recorded Sep 21, 202651-20011 contacts →

Exact match

“SolaLinkedIn IT ITIT”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact match千代田区, JapanHQ recorded Sep 21, 202611-5010 contacts →

Exact match

“GPTech IT GPTechITITITIT CIO IT IT IT IT IT IT PoC IT IT IT IT / RFP PMO KPI BPR ※GPTech IT ITIT IT IT ITJ-SOX IT IT IT IT IT IT CIOPMO CIO PMO(Portfolio Management Office) CIO™?”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact match港区, JapanHQ recorded Sep 21, 20261-1010 contacts →

Exact match

“4 issue3 ① ② ③m&a”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact match渋谷区, JapanHQ recorded Sep 21, 202611-509 contacts →

Exact match

“MissionDXFlagxs Project Management DX cloud 2022PM”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact match中央区, JapanHQ recorded Sep 21, 202611-509 contacts →

Exact match

“SalesforceSaaSSpohabi”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchGinowan, JapanHQ recorded Sep 21, 202651-2009 contacts →

Exact match

“okicom is a leading IT solution provider in Okinawa, Japan, offering a wide range of technology products, solutions and services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchRoppongi, JapanHQ recorded Sep 21, 202611-509 contacts →

Exact match

“IT consulting service for Enterprise Information Systems Department.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchShibuya, JapanHQ recorded Sep 21, 202611-508 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 21, 2026 · View company records in RevenueBase
23Exact match江東区, JapanHQ recorded Sep 21, 202651-2007 contacts →

Exact match

“Tokyo, Japan”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact match目黒区, JapanHQ recorded Sep 21, 202651-2006 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact match千代田区, JapanHQ recorded Sep 21, 202611-506 contacts →

Exact match

“NTQNTQNTQ2022ITNTQICTDX NTQ1,5005SI5APAC2016NTQNTQ5101502028300 NTQ70%NTQNTQNTQ IPONTQ2027IPOGlobal IT Service Provider 20283002 NTQITITIT”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 139 government technology consulting firms based in Japan

See the full list, filter by size, metro and specialty, and access 4,405 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Government technology consulting firms based in Japan at a glance

As of Sep 21, 2026
10.6%Verified-email coverage
300.1Average contacts per company
11-50Median size (employees)
25.2%Largest-city concentration · Jing
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
41
11-50
37
51-200
33
201-500
9
501-1,000
5
1,001-5,000
6
5,001-10,000
1
10001+
3

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 139 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 “government technology consulting 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 4,405 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 21, 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 “government technology consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many government technology consulting firms are there based in Japan?

RevenueBase identified 139 company matches for government technology consulting 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 government technology consulting firms?

Jing leads with 35 company records, followed by Tokyo (15) and Xian (8).

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 4,405 professional contacts with verified work emails tracked across these 139 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 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.