INET

What INET does

INET (株式会社アイネット) is a privately held Japanese IT services company founded on March 24, 1993, and headquartered in Saitama City, serving enterprise clients across the Greater Tokyo metropolitan area. The company operates three integrated service lines: application development (covering initial impact analysis through design, coding, testing, and release), IT infrastructure design and construction (encompassing host systems, OS servers, cloud, virtualization, containers, middleware, databases, and networking), and system operations and maintenance (including mainframe and OS server management, monitoring, security, backup, database administration, helpdesk, and PMO functions). Application development teams of up to 20+ members deliver projects across mainframe, client-server, web, and mobile environments using Java, VB.net, C#.net, C/C++, COBOL, JavaScript, Python, and PL/SQL, with recent expansion to include AI API integration and modern web frontends.

The company's revenue model is anchored in professional services and managed/staffing services under a General Worker Dispatch Business Permit (派11-300981). Clients span social infrastructure, finance, manufacturing, distribution, and service industries, including manufacturer and telecom system vendors/integrators, independent system service companies, and financial and service industry system specialists. INET emphasizes long-tenured client relationships, with some continuous system operation contracts spanning approximately 25 years. Go-to-market is sales-led and direct, with services delivered primarily on-site at client locations in the Tokyo-Saitama area; marketing is limited to recruitment channels (Mynavi platform, Instagram, local job fairs). Notable operational metrics include an average of 10.3 hours monthly overtime (2024), 77% of system department employees working partially or fully remotely, an 88% equity ratio, and debt-free operations with ¥10 million registered capital.

INET maintains Privacy Mark certification (JIS Q 15001, registration 11820631) since 2006, the Saitama Prefecture Healthy Management Practice Business Office certification (April 2024), and is a certified Saitama Prefecture Senior Active Promotion Declaration Company. Leadership is stable, with President and Representative Director Hideaki Fujisawa (藤澤秀昭) at the helm since founding, supported by Directors Yuichi Hamasaki (濱崎勇一, Business Headquarters Head and Personal Information Protection Manager), Kenji Koiwa (小岩賢二, System Headquarters Head), and Hideya Fujisawa (藤澤秀哉), plus Auditor Hiroshi Yano (矢野豪士). The company is privately held with no parent company, no disclosed funding rounds, and no institutional investors identified.

Name

INET

Legal name

株式会社アイネット

Website

https://inetweb.co.jp

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

101–250 employees

Short description

INET (株式会社アイネット) is a privately held Japanese IT services company founded in 1993 and headquartered in Saitama, providing application development, IT infrastructure design and construction, and system operations to enterprise clients in social infrastructure, finance, manufacturing, distribution, and service industries across the Greater Tokyo metropolitan area.

Ownership category

akta.pro rank

Product category

IT Services

NAICS

Custom Computer Programming Services (541511), Computer Facilities Management Services (541513)

SIC

Services-Computer Programming Services (7371)

akta.pro primary industry

Application Maintenance & Support (AMS) (BPAEAFAC)

akta.pro secondary industries

ITSM Managed Services (Run/Operate/Optimize) (BPAEAJAN), IT Service Desk & End-User Support (L1/L2) (BPAAACAA)

Keywords

• IT services
• Application development
• IT infrastructure
• System operations
• Worker dispatch

Headquarters

HQ city

Saitama-shi

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. IT Services (Application Development, Infrastructure, System Operations): Providing IT system development, infrastructure design/construction, and system operation/maintenance services to enterprise clients across social infrastructure, finance, manufacturing, distribution, and service industries. Services are rendered under project-based or ongoing contractual arrangements.
2. Staffing / Dispatch Services: General worker dispatch (temporary staffing) services under public labor dispatch permit (派11-300981). Revenue derived from staffing fee margins.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

INET provides enterprise IT services across three integrated domains: application development (initial investigation through design, coding, testing, and release), IT infrastructure design and construction (host to various OS environments, cloud, virtualization, containers, middleware, databases, networking), and system operations and maintenance (mainframe, OS servers, monitoring, security, backup, database administration, helpdesk, PMO). The company also holds a general worker dispatch permit (派11-300981) enabling temporary staffing services to enterprise clients across social infrastructure, finance, manufacturing, distribution, and service industries.

Product overview

INET operates as an IT services company offering three integrated service lines: Application Development (アプリケーション開発), IT Infrastructure Services (ITインフラ構築), and System Operations (システム運用). These services span the full lifecycle of enterprise information systems—from initial development and infrastructure construction through ongoing operations and maintenance. The company serves diverse industries including social infrastructure, finance, manufacturing, distribution, and services sectors, providing both standalone and combined service offerings tailored to client needs.

Differentiator

Problem solved

Functional benefit

Products and services

• Application Development (アプリケーション開発)
• IT Infrastructure Services (ITインフラ構築)
• System Operations (システム運用)
• Worker Dispatch Services (労働者派遣)

Quantifiable outcome

• Monthly average overtime: 10.3 hours (2024), 9.1 hours (2023). Health committee monitors all employee overtime.
• +3 more outcomes

Named customers3 records

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Eight partnerships are on record, tiered minor.

• 武蔵野銀行北浦和支店minorOthersPrimary banking partner for transaction services.
• 埼玉りそな銀行浦和中央支店minorOthersBanking partner for financial transactions.
• 埼玉縣信用金庫浦和支店minorOthersRegional credit union banking partner.
• 群馬県信用金庫他不特定多数minorOthersBanking partner for financial transactions.
• 一般社団不入法情報サービス産業協会 (JISA)minorOthersMember of the Japan Information Technology Services Industry Association, providing industry representation and standards alignment.
• 公益社団不入法埼玉県情報サービス産業協会 (SISIA)minorOthersMember of Saitama prefecture's IT services industry association.
• 公益社団不入法浦和法人会minorOthersMember of Urawa business association.
• さいたま商工会議所minorOthersMember of the Saitama Chamber of Commerce and Industry.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Fujitsu Limited: Global IT services giant with deep Japanese enterprise footprint in application development, infrastructure modernization, and system operations — sets competitive pricing baseline for the entire market INET serves.
• NTT Data Group: Largest Japanese IT services incumbent offering full-stack application development, infrastructure, and managed operations across every major vertical — competes for the same enterprise clients as INET at vastly greater scale.

Direct peers

• Future Corporation: Japanese IT consulting and development firm delivering custom application work and system operations, comparable in offering mix to INET across financial and distribution verticals.
• Internet Initiative Japan (IIJ): Japanese IT and network services provider with managed operations and cloud infrastructure offerings that overlap with INET's infrastructure and system operations lines.
• transcosmos Inc. Japanese IT services and BPO firm with significant application development and system operations exposure for enterprise clients, including a major worker dispatch and staffing component similar to INET.
• ITFOR Inc. Mid-cap Japanese IT solutions provider offering application development, infrastructure, and system operations to enterprise clients — closely aligned service mix and comparable scale to INET.
• BIPROGY Inc. Major Japanese IT services firm (formerly Nihon Unisys) delivering system integration, application development, and managed services to financial, manufacturing, and public-sector clients — direct overlap in finance and distribution verticals.
• Otsuka Corporation: Established Japanese IT services and solution provider offering application development, infrastructure, and ongoing system support across a similar enterprise customer base.
• TIS Inc. Japanese IT services group providing custom application development, infrastructure design, and system operations — overlapping service lines and enterprise client profile.

Emerging players

• ITbook Holdings Co., Ltd. Smaller Japanese IT consulting and development firm with public-sector and enterprise application work; comparable service-line focus but smaller scale and emerging-stage positioning relative to INET.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

• Instagraminstagram.com/inet_since1993.saitama

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about INET