Company lists · Data refreshed November 2026

Top 21 Systems integration contractors based in Japan

RevenueBase identified 211 company matches for systems integration contractors associated with Japan as of November 2026 and tracks 26,158 professional contacts across them, including 7,270 with verified work emails. Jing is the largest hub.

This list covers company matches for systems integration contractors 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
211Companies
26,158Contacts tracked
7,270Verified emails
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The 21 largest systems integration contractors based in Japan

Ranked by team size
Top 21 of 211 company matches for systems integration contractors 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 matchJapanHQ recorded Nov 6, 20261,001-5,0001,687 contacts →

Exact match

“Future Focus Infotech Private Limited is a technology and digital transformation partner helping enterprises modernise, innovate, and scale with confidence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact match千代田区, JapanHQ recorded Nov 6, 2026201-500220 contacts →

Exact match

“Japan.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact 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
5Exact 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
6Exact 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
7Exact 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
8Exact matchTokyo, JapanHQ recorded Nov 6, 2026201-50050 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact 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
10Exact 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
11Exact 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
12Exact 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
13Exact matchShibuya-ku, JapanHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“CWorks LLC specializes in high-quality office installations, hotel, and office technology solutions, technology consulting, and project management.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact match中央区, JapanHQ recorded Nov 6, 202651-20015 contacts →

Exact match

“JG CORPORATION IT ITIT JG CORPORATION guides companies in Japan and around the world improve their productivity through consulting and technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact match港区, JapanHQ recorded Nov 6, 2026201-50012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact match熊本市 中央区, JapanHQ recorded Nov 6, 202651-20012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact match千代田区, JapanHQ recorded Nov 6, 202611-5010 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 · Nov 6, 2026 · View company records in RevenueBase
18Exact matchGinowan, JapanHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact match江東区, JapanHQ recorded Nov 6, 202651-2008 contacts →

Exact match

“Tokyo, Japan”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact match港区, JapanHQ recorded Nov 6, 2026201-5008 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact match渋谷区, JapanHQ recorded Nov 6, 202651-2008 contacts →

Exact match

Recorded description not available.

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

Showing 21 of 211 systems integration contractors based in Japan

See the full list, filter by size, metro and specialty, and access 7,270 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Systems integration contractors based in Japan at a glance

As of Nov 6, 2026
27.8%Verified-email coverage
124.0Average contacts per company
51-200Median size (employees)
19.0%Largest-city concentration · Jing
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
42
11-50
52
51-200
62
201-500
20
501-1,000
14
1,001-5,000
11
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 211 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 “systems integration contractors” 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 7,270 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.

Systems integration contractors by metro

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 “systems integration contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many systems integration contractors are there based in Japan?

RevenueBase identified 211 company matches for systems integration contractors 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 systems integration contractors?

Jing leads with 40 company records, followed by Tokyo (19) 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 7,270 professional contacts with verified work emails tracked across these 211 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.