COMSOFT
COMSOFT is a Tokyo-based independent Japanese software house founded in 1981 that delivers custom system integration, technical personnel, and maintenance for financial, telecommunications, and public-sector clients, and operates the Sub. subscription ticketing platform for SMB shops acquired in 2023.
- Company typePrivate
- Founded1981
- HeadquartersTokyo, Japan
- Headcount51–100
- GTM typeB2B
- OfferingServices
What COMSOFT does
COMSOFT CO., LTD. (コムソフト株式会社) is a privately held, independent Japanese software house founded on April 27, 1981 in Tokyo and headquartered in Kanda, Chiyoda-ku. The company historically focused on Fujitsu OS development before broadening into enterprise system integration (SI) across three primary verticals: financial services (banking, securities, insurance), telecommunications carriers, and public sector organizations. Its core offering covers the full lifecycle of system proposal, custom software development, technical personnel provisioning, and ongoing operation and maintenance, with named enterprise clients including Aozora Bank, SoftBank, SB C&S, Nomura Research Institute, Mitsubishi UFJ Asset Management, and Fujitsu.
The company operates a second business line, Sub. (サブ), a B2B/B2C subscription ticketing platform acquired in June 2023 from Vueen Co., Ltd. Sub. enables restaurants, cafes, salons and other fixed-price shops to launch membership and multi-visit subscription programs with zero initial cost and no system development, with consumers purchasing tickets via smartphone through the sub-ticket.jp storefront. Supporting infrastructure includes a Saitama satellite office opened in June 2021, a wholly-owned subsidiary (G&G Planning Co., Ltd., acquired April 2023), and ISO9001:2015 certification.
COMSOFT employs 115 staff as of April 2026, of whom 91 are system engineers and 15 are programmers, generating revenue primarily through professional services (SI contracts and dispatched technical personnel) with a smaller recurring subscription stream from Sub. Pricing for SI is quote-based per project, while Sub. operates on a monthly subscription cadence. The company has no parent entity, no disclosed funding rounds, and no public listing. Marketing is conducted via direct enterprise sales, an official X (Twitter) account, partner recruitment, and occasional business-TV exposure (notably a 2023 appearance on TOKYO MX's 'Ee Janai-ka Biz'). President and Representative Director is Yosuke Teshima, appointed April 2019.
COMSOFT firmographics
Firmographics- Name
- COMSOFT
- Legal name
- コムソフト株式会社 COMSOFT CO.,LTD.
- Website
- https://comsoft.co.jp
- Company type
- Private
- Founded year
- 1981
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- COMSOFT is a Tokyo-based independent Japanese software house founded in 1981 that delivers custom system integration, technical personnel, and maintenance for financial, telecommunications, and public-sector clients, and operates the Sub. subscription ticketing platform for SMB shops acquired in 2023.
- Ownership category
- akta.pro rank
Where COMSOFT is headquartered
LocationHeadquarters
- HQ city
- Tokyo
- HQ country
- Japan
- HQ region
- Asia
Offices2 records
Markets served
COMSOFT business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- Software Development and Sales: System proposal, development, operation and maintenance services for financial, telecommunications and public sector clients. Provides technical personnel to clients.
- Technical Personnel Provision: Provision of system maintenance and operation related technical personnel to clients.
- Sub. Subscription Service: Corporate subscription service platform enabling shops (restaurants, cafes, salons) to offer fixed-fee subscription plans. Business acquired from 株式会社ビューン in June 2023.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Sub. subscription service with zero initial cost |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels4 records
COMSOFT product offering
Product offeringCore offering
COMSOFT provides system proposal, development, operation, and maintenance services primarily for financial institutions (banks, insurance, securities), telecommunications carriers, and public sector organizations, along with dispatch of embedded technical personnel. Since June 2023, it also operates "Sub." (サブ), a B2B subscription management platform that lets retail and service businesses (restaurants, cafes, salons) launch fixed-fee membership and multi-visit ticket programs with zero initial cost and smartphone-based ticketing.
Product overview
COMSOFT operates two distinct business lines: (1) SI事業 - a system integration services division providing custom software development, technical personnel, and system maintenance/operations for financial, telecommunications, and public sector clients; and (2) Sub. - a B2B subscription management platform acquired in 2023 that enables retail and service businesses to offer subscription-based membership tickets and multi-visit passes, with all ticket management and payment processing handled through smartphone applications.
Differentiator
Problem solved
Functional benefit
Brands
- Sub.(サブ): Subscription-based service for restaurants, cafes, salons and other fixed-price establishments. Allows businesses to easily introduce subscription plans and tickets purchased via smartphone.
Products and services
- System Integration (SI) Services Comprehensive custom software development and system integration services for financial institutions (banks, insurance, securities), telecommunications carriers, and public sector organizations, covering system proposal, development, operation, and maintenance, plus provision of embedded technical personnel.
- Sub. (サブ) Subscription Service Platform B2B subscription management platform that enables retail and service businesses (restaurants, cafes, salons) to launch fixed-fee subscription and multi-visit ticket programs with zero initial cost and no system development required. End customers purchase membership tickets via smartphone.
Companies that use COMSOFT
Customer profileNamed customers6 records
Segments4 records
Ideal customer profiles4 records
COMSOFT technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
COMSOFT partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core.
- ジーアンドジープランニング株式会社coreWholly-owned subsidiary of COMSOFT. G&G Planning Co., Ltd. is a subsidiary established to expand business operations. Located at the same address as COMSOFT headquarters.
- 株式会社ビューンcoreCOMSOFT acquired the Sub. subscription service business from 株式会社ビューン in June 2023, marking a strategic expansion into B2C subscription services for retail shops.
Scale indicators3 records
Recent moves9 records
COMSOFT competitors and assessment
Company assessmentBroad incumbents
- Fujitsu: Global Japanese IT services and SI giant with deep presence in financial and telecommunications systems — comparable to COMSOFT in vertical focus but operating as a broad incumbent across hardware, software, and services.
- NEC Corporation: Major Japanese IT and network solutions provider serving financial institutions, telecom carriers, and government — overlapping vertical coverage with COMSOFT's core SI business.
- NTT Data: Japan's largest system integrator serving banking, insurance, telecom, and public sector — directly comparable in customer verticals to COMSOFT but at vastly greater scale.
Direct peers
- Transcosmos: Japanese IT services and BPO provider offering digital customer service, system development, and contact-center operations — overlapping IT services capability with COMSOFT's professional services offering.
- STORES (hey): Japanese SMB SaaS platform offering reservation, payment, and online store tools to restaurants and retail shops — comparable to COMSOFT's Sub. business as a subscription/loyalty platform for small shops.
- Osaka Business Computer (OBC): Japanese business software vendor specializing in accounting, payroll, and ERP for SMEs and enterprises — comparable as a Japan-focused independent software/systems vendor serving business customers.
- Nomura Research Institute (NRI): Japanese IT solutions and consulting firm with strong specialization in securities, asset management, and financial systems — overlapping with COMSOFT's securities/banking client base.
- BIPROGY: Japanese system integrator serving financial, retail, and public-sector clients with development, operations, and maintenance services — directly comparable mid-sized SI peer.
- Works Applications: Independent Japanese enterprise software vendor (HUE, AIQ) serving large Japanese corporates with cloud ERP and HR systems — comparable as a Japan-focused independent software vendor competing against larger incumbents.
- TIS Inc. Mid-to-large Japanese independent SI firm offering system development, operations, and BPO services to financial, telecom, and industrial clients — closely comparable in business model and target verticals.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat3 records
Key risks5 records
Key highlights6 records
Customer concentration
COMSOFT social profiles
Digital presenceCOMSOFT compliance and trust
Trust signalCompliance1 record
COMSOFT financial estimates
Financial estimateRevenue estimate
Valuation estimate
COMSOFT leadership team
Management profileNumber of profiles
Profiles6 records
COMSOFT subsidiaries and ownership
Company hierarchySubsidiaries2 records
COMSOFT funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
COMSOFT M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about COMSOFT
What does COMSOFT do?
COMSOFT provides system proposal, development, operation, and maintenance services primarily for financial institutions (banks, insurance, securities), telecommunications carriers, and public sector organizations, along with dispatch of embedded technical personnel. Since June 2023, it also operates "Sub." (サブ), a B2B subscription management platform that lets retail and service businesses (restaurants, cafes, salons) launch fixed-fee membership and multi-visit ticket programs with zero initial cost and smartphone-based ticketing.
Is COMSOFT a public or private company?
COMSOFT is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was COMSOFT founded?
COMSOFT was founded in 1981. It employs 51 to 100 people.
Where is COMSOFT based?
COMSOFT is headquartered in Tokyo, Japan, in the Asia region.
How does COMSOFT make money?
Three revenue lines are on record. Software Development and Sales are the primary driver. The others are technical Personnel Provision and sub. Subscription Service.
Who are COMSOFT's main competitors?
Broad incumbents on record are Fujitsu, NEC Corporation and NTT Data. Direct peers are Transcosmos, STORES (hey), Osaka Business Computer (OBC), Nomura Research Institute (NRI), BIPROGY, Works Applications and TIS Inc..
Does COMSOFT have an API?
No public API is recorded for COMSOFT.