Company lists · Data refreshed September 2026

Top 25 Enterprise software support providers based in Japan

RevenueBase identified 130 enterprise software support providers headquartered in Japan as of September 2026 and tracks 1,045 professional contacts across them, including 90 with verified work emails. Jing is the largest hub.

This list covers enterprise software support providers headquartered in Japan, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review
130Companies
1,045Contacts tracked
90Verified emails
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The 25 largest enterprise software support providers based in Japan

Ranked by team size
Top 25 of 130 enterprise software support providers based in Japan, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise software support providers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceさいたま市中央区, JapanHQ checked Sep 14, 2026201-50038 contacts →

Indirect evidence

“SaaSECERP AIAI”

Source: RevenueBase Database · checked Sep 14, 2026
2Indirect evidence新宿区, JapanHQ checked Sep 14, 20261,001-5,00036 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceTokyo, JapanHQ checked Sep 14, 202611-5032 contacts →

Indirect evidence

“Provide IT consultants and coordinators for ERP projects.”

Source: RevenueBase Database · checked Sep 14, 2026
4Indirect evidence大阪市北区, JapanHQ checked Sep 14, 202651-20032 contacts →

Indirect evidence

“SAP70SAP“United VARs”ITDX”

Source: RevenueBase Database · checked Sep 14, 2026
5Indirect evidence港区, JapanHQ checked Sep 14, 2026201-50029 contacts →

Indirect evidence

“1997IBM iAS/400 BtoB IT, IT PC by SOLPAC 2,680/2POC IBM Power SystemsAS/400 IBM MAXIMO ERPSAPHANA, Business One BPO AI Web ITSE”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceGifu, JapanHQ checked Sep 14, 2026501-1,00021 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidence千代田区, JapanHQ checked Sep 14, 20261,001-5,00017 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidence中央区, JapanHQ checked Sep 14, 202651-20014 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceMinato-ku, JapanHQ checked Sep 14, 202611-5014 contacts →

Partial evidence

“Joho Technology Inc: Complete IT support for small and medium sized businesses Managing your firm's ever-changing technology needs starts with selecting the right partner.”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidence港区, JapanHQ checked Sep 14, 20261-1014 contacts →

Indirect evidence

“Anyflow SaaS”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceShinjuku-ku, JapanHQ checked Sep 14, 202651-20013 contacts →

Indirect evidence

“Ubiquitous AI (TYO:3858) is a company that provides technologies and services required by manufacturing industry customers.”

Source: RevenueBase Database · checked Sep 14, 2026
12Indirect evidence千代田区, JapanHQ checked Sep 14, 202611-5012 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
13Indirect evidenceYokohama, JapanHQ checked Sep 14, 202611-509 contacts →

Indirect evidence

“Elf Tech, LLC.”

Source: RevenueBase Database · checked Sep 14, 2026
14Partial evidenceRoppongi, JapanHQ checked Sep 14, 202611-509 contacts →

Partial evidence

“IT consulting service for Enterprise Information Systems Department.”

Source: RevenueBase Database · checked Sep 14, 2026
15Indirect evidenceKoto, JapanHQ checked Sep 14, 202611-508 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
16Indirect evidence文京区, JapanHQ checked Sep 14, 202651-2007 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
17Indirect evidence品川区, JapanHQ checked Sep 14, 20261-105 contacts →

Indirect evidence

“2017SaaS 2017 ” HiCustomer HiCustomer SaaS 3 Arch 20226SaaSITSaaS / ITBtoBSAM445TAM29.6 Arch https://arch.hicustomer.jp/”

Source: RevenueBase Database · checked Sep 14, 2026
18Indirect evidence中央区, JapanHQ checked Sep 14, 202651-2005 contacts →

Indirect evidence

“Iim30it it”

Source: RevenueBase Database · checked Sep 14, 2026
19Indirect evidence千代田区, JapanHQ checked Sep 14, 20261-105 contacts →

Indirect evidence

“IT Partners”

Source: RevenueBase Database · checked Sep 14, 2026
20Partial evidenceMinato-ku, JapanHQ checked Sep 14, 202611-504 contacts →

Partial evidence

“Business-criticalHR, Payroll, Employee Attendance, Accounting, LogisticsConsulting ERP (Enterprise Resources Planner) Integration Consulting Oracle PeopleSoft Consulting Design…”

Source: RevenueBase Database · checked Sep 14, 2026
21Indirect evidenceChiyoda, JapanHQ checked Sep 14, 202611-504 contacts →

Indirect evidence

“GAC JAPAN is an IT consulting firm that helps companies with their technology needs.”

Source: RevenueBase Database · checked Sep 14, 2026
22Indirect evidence品川区, JapanHQ checked Sep 14, 2026501-1,0003 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
23Indirect evidence渋谷区, JapanHQ checked Sep 14, 202651-2003 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
24Indirect evidenceTokyo, JapanHQ checked Sep 14, 202611-503 contacts →

Indirect evidence

“Wintech Solutions Welcome to Wintech Solutions!”

Source: RevenueBase Database · checked Sep 14, 2026
25Indirect evidence藤沢市, JapanHQ checked Sep 14, 202651-2002 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026

Showing 25 of 130 enterprise software support providers based in Japan

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Enterprise software support providers based in Japan at a glance

As of Sep 14, 2026
8.6%Verified-email coverage
8.0Average contacts per company
11-50Median size (employees)
22.3%Largest-city concentration · Jing
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
34
11-50
50
51-200
25
201-500
9
501-1,000
4
1,001-5,000
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 130 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among enterprise software support providers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Japan whose own description of what they do matches “enterprise software support providers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names enterprise software support providers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among enterprise software support providers, and records with no verified work email. Companies headquartered outside Japan are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 90 across the full list. 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 14, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Enterprise software support providers by metro

  • Enterprise software support providers in Jing29

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names enterprise software support providers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many enterprise software support providers are there based in Japan?

RevenueBase identified 130 enterprise software support providers headquartered in Japan as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

株式会社システムインテグレータ, headquartered in Yu Xian, tops this list with the largest team on record.

Which city has the most enterprise software support providers?

Jing leads with 29 headquartered companies, followed by Tokyo (9) and Xian (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 90 verified decision-maker contacts tracked across these 130 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 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 Smart Search, 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.