OMK

What OMK does

OMK Corporation (株式会社オー・エム・ケー) is a Tokyo-based private IT services company founded in 1998 as a spin-off from the system division of Daitsumishima Industry (大三島工業). The company provides custom software development and system integration services with a strong specialization in railway and public transportation systems, including IC card ticket gate infrastructure and station revenue management systems developed for JR (Japan Railways) and other railway operators across Japan. Its technology stack spans Java, C, C++, and C# (.NET) across UNIX, Linux, and Windows environments, with Oracle, DB2, and SQL Server as the primary database platforms, indicating a focus on long-lifecycle enterprise and legacy infrastructure work rather than greenfield modern application development.

Beyond its core railway franchise, OMK operates a second business line under the 'ePo' brand offering business process outsourcing (BPO), sales process outsourcing (SPO), and system outsourcing (SO) services. The company also delivers network infrastructure design and construction, security solutions, and vertical-specific systems for manufacturing/distribution and apparel/retail clients. Revenue is generated through project-based custom development contracts and managed outsourcing engagements, with pricing not publicly disclosed. Geographic operations are concentrated in Tokyo (Toshima-ku headquarters and Otsuka project office) with a regional hub in Fukuoka opened in 2012 to serve the Kyushu market. The company is led by founder Eiji Urakabe (浦壁 英司) as Representative Director/President, owns ISMS certification (MSA-IS-148) for its Otsuka office, and holds Japanese employment placement and worker dispatch licenses. With approximately 48 employees including contract staff and no disclosed institutional investors, OMK operates as a small, privately held niche IT services firm with 28 years of operating history.

Name

OMK

Legal name

株式会社オー・エム・ケー

Website

https://omk.co.jp

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

1–10 employees

Short description

OMK Corporation is a Tokyo-based private IT services firm founded in 1998 that delivers custom software development and system integration for Japanese railway operators, including IC card ticket gate and station revenue management systems, alongside BPO and network infrastructure services for enterprise clients.

Ownership category

akta.pro rank

Headquarters

HQ city

Tokyo

HQ country

Japan

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Infrastructure

Revenue model

1. System Integration Services: Custom software development including standalone, closed network, internet, and intranet systems; mainframe/legacy system support; network infrastructure design and construction; security solutions; and consulting services for system implementation and construction
2. ePo Business Outsourcing: Comprehensive outsourcing services including business process outsourcing (new business, business restructuring), sales process outsourcing (staffing, marketing support, practical sales assistance), and system outsourcing (project support, monitoring, education, maintenance, helpdesk)

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

OMK Corporation provides custom IT system development and integration services for enterprises, with deep specialization in Japanese railway operations systems such as nationwide IC card ticket gate implementations and station revenue management systems. The company also delivers network infrastructure design, security solutions, and ePo (Business Process, Sales Process, and System) Outsourcing services to clients across railway, public, manufacturing, distribution, and apparel retail sectors.

Product overview

OMK Corporation offers a unified portfolio of IT solutions organized into two core divisions: System Integration Services and ePo Business Outsourcing Services. System Integration encompasses commissioned development for railway operational systems (including IC card gates and revenue management), financial/payroll/sales management systems, network infrastructure, and security solutions. The ePo division provides business process outsourcing, sales process outsourcing, and system outsourcing services. The company develops applications using Java, C++, .NET, and C# across UNIX, Linux, and Windows environments with Oracle, DB2, and SQL Server databases.

Differentiator

Problem solved

Functional benefit

Products and services

• System Integration Services Comprehensive commissioned IT system development and integration services covering railway operational systems, financial/payroll/sales management systems, mainframe and legacy system support, and security solutions for enterprise clients.
• ePo Business Outsourcing Services

Named customers2 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

One partnership is on record.

• Daitsumishima Industry Corporation (大三島工業株式会社)minorOthersRelated company from which OMK was spun off in 1998. OMK originated as the system department of Daitsumishima Industry Corporation before incorporation as an independent entity.

Scale indicators2 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• NTT Data: Largest Japanese systems integrator with extensive public-sector and transportation IT practice, including work for railway operators. Competes with OMK for large commissioned development engagements across Japan.
• Hitachi: Global conglomerate with a substantial transportation systems business delivering rail signaling, fare collection, and station systems to JR and other operators. Competes with OMK in the same railway IT market from a much larger base.
• Fujitsu: Major Japanese IT services and platform vendor with deep relationships in transportation and public infrastructure. Targets the same commissioned development and infrastructure work OMK performs, but at much larger scale.
• Oki Electric Industry: Japanese electronics and systems vendor with a transportation systems business covering station systems and fare collection infrastructure. Overlaps with OMK's railway IT scope.
• Toshiba: Provides railway systems including station equipment, fare collection, and related IT infrastructure. Directly competes with OMK for the system integration elements of rail modernization projects.
• NEC Corporation: Major Japanese systems integrator providing fare collection, IC card, and public transportation IT to rail operators. Overlaps with OMK's IC card and station revenue management work at the higher end of the project scale.

Direct peers

• NS Solutions: Japanese systems integrator providing custom application development, infrastructure, and managed services to enterprise clients including industrial and manufacturing customers. Closely comparable in GTM and service mix to OMK's non-rail SI practice.
• BIPROGY: Japanese SI offering custom development, outsourcing, and managed services across enterprise verticals. Comparable to OMK's general SI and outsourcing offerings beyond railway specialization.
• JR System: IT services arm of the JR Group, directly building and operating station revenue, ticket, and IC card systems for Japanese railways. Most direct competitor to OMK for JR-related fare collection and station system work.

Emerging players

• ITbook: Smaller Japanese IT services firm providing system development and consulting, similar in scale and orientation to OMK. Comparable in terms of size, vertical mix, and project-based revenue model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance2 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 OMK