Company lists · Data refreshed November 2026

Top 24 System integrators based in Japan

RevenueBase identified 361 company matches for system integrators associated with Japan as of November 2026 and tracks 26,025 professional contacts across them, including 7,466 with verified work emails. Jing is the largest hub.

This list covers company matches for system integrators 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 November 6, 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 Nov 6, 2026 How this list was built
361Companies
26,025Contacts tracked
7,466Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 24 largest system integrators based in Japan

Ranked by team size
Top 24 of 361 company matches for system integrators based in Japan, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 202610001+21,602 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMinato-ku, JapanHQ recorded Nov 6, 2026n/a156 contacts →

Exact match

“MetroWorks offers services in the Information Technology field.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchKajicho Kanda, JapanHQ recorded Nov 6, 2026201-500129 contacts →

Exact match

“We are in Tokyo as an independent System Integrator (SIer) and have been providing SI services to many corporate clients jointly with major carriers, ISPs and SIers in Japan since…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact match港区, JapanHQ recorded Nov 6, 202651-200124 contacts →

Exact match

“FIXER was founded in 2009 in Japan and has been aiming to accelerate cloud computing integration in corporate infrastructures ever since.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact match港区, JapanHQ recorded Nov 6, 2026201-500121 contacts →

Exact match

“Our Vision_The Power of Robotics to Benefit Humanity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact match千代田区, JapanHQ recorded Nov 6, 2026201-500106 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchChuo, JapanHQ recorded Nov 6, 202611-50106 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact match新宿区, JapanHQ recorded Nov 6, 202651-20081 contacts →

Exact match

“3.Saas/ASP/IT”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchTokyo, JapanHQ recorded Nov 6, 2026n/a63 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact match横浜市 西区, JapanHQ recorded Nov 6, 2026201-50058 contacts →

Exact match

“DX(Developer Experience)”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchChuo-ku, JapanHQ recorded Nov 6, 20261,001-5,00058 contacts →

Exact match

“As a network system integrator, we harness the power of cutting-edge information and communication technology to contribute to the development of society.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchShibuya, JapanHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“https://jp.asteria.com/ ASTERIA Warp1202381Handbook XWebPlatioAI/IoTGravioDX About Asteria Corporation (https://en.asteria.com/) Asteria is a software development company that…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMinato-ku, JapanHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“X1Studio is a technology design and systems integration company focused on smart buildings, data centers, and hospitality technology platforms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchChiyoda-ku, JapanHQ recorded Nov 6, 2026501-1,00052 contacts →

Exact match

“IT Solutions Distributor Not only does Networld distribute the necessary products for building an information and communications technology infrastructure for all types of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact match港区, JapanHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“IT\t\tIT\t”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact match中央区, JapanHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“BeeXSAP20163SAPSAP SAP”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact match千代田区, JapanHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Cloud integrator based in Tokyo and New York.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAsakusa, JapanHQ recorded Nov 6, 2026n/a31 contacts →

Exact match

“Founded in 1983, Advantech is a leader in providing trusted, innovative products, services, and solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact match渋谷区, JapanHQ recorded Nov 6, 202651-20027 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact match文京区, JapanHQ recorded Nov 6, 2026201-50026 contacts →

Exact match

“4 50820128 : 1-5-3 03-5800-4311 1100 ↓”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact match千代田区, JapanHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“ROUTE06 is a software company specializing in enterprise solutions and professional services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact match千代田区, JapanHQ recorded Nov 6, 20261,001-5,00022 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGifu, JapanHQ recorded Nov 6, 2026501-1,00022 contacts →

Exact match

“Densan System Co Ltd (3630) is an information technology and services company based out of 1-58 Hikie, Gifu City, Gifu, 501-6133, Japan, Gifu, Gifu, Japan.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMinato-ku, JapanHQ recorded Nov 6, 202611-5022 contacts →

Exact match

“Unlock new value through Agile x Offshore Development.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 24 of 361 system integrators based in Japan

See the full list, filter by size, metro and specialty, and access 7,466 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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System integrators based in Japan at a glance

As of Nov 6, 2026
28.7%Verified-email coverage
72.1Average contacts per company
51-200Median size (employees)
19.9%Largest-city concentration · Jing
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
66
11-50
83
51-200
111
201-500
45
501-1,000
19
1,001-5,000
14
5,001-10,000
2
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 361 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 “system integrators” 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 7,466 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 November 6, 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 “system integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many system integrators are there based in Japan?

RevenueBase identified 361 company matches for system integrators associated with Japan as of November 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, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most system integrators?

Jing leads with 72 company records, followed by Tokyo (27) and Xian (24).

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 7,466 professional contacts with verified work emails tracked across these 361 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 November 6, 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.