KDK

What KDK does

KDK (株式会社kdk/考道館) is a Japanese private software development firm founded in April 1999 in Osaka by Representative Director Etsuji Inoue. The company operates across three offices (Osaka HQ, Tokyo Akihabara, Nagoya) with 27 employees as of April 2025. KDK generates revenue through three streams: custom software development for enterprise clients, SES (System Engineering Services) personnel dispatching under Japanese labor dispatch license 般27-301198, and an IT technician training school offering programming courses to individuals.

The company's product portfolio centers on healthcare and business automation. Core products include Kine-Riha (キネリハ), a virtual reality rehabilitation system using Microsoft Kinect motion capture for body movement recognition in a 1.8m space without controllers, and MICS, a hospital medical equipment management system with barcode-based lending, return, repair, and disposal tracking. Additional offerings span naphtha trading simulation, POS register APIs for supermarkets, sailing route optimization for chemical logistics, personal information management systems, and Arkanoid-based rehabilitation mobile apps for Android/iOS. The technology stack spans Java, Spring Boot, PHP/Laravel, C#/.NET, Python, React, TypeScript, Swift, and Oracle/Postgres/SQLServer/db2/SQLite databases.

KDK's customer base includes healthcare institutions (National Cancer Center, university hospitals, day care centers), chemical manufacturers, general supermarkets, electrical machinery makers, and software companies. Reported FY2025 revenue was ¥161,520,000 with operating profit of ¥9,150,000. The company is privately held with no institutional investors, no disclosed funding rounds, and operates independently under founder ownership. Its go-to-market relies on direct sales (phone/email), a company website, and Twitter presence, with no formal partnerships or alliances recorded.

Name

KDK

Legal name

株式会社kdk/考道館

Website

https://kdkkiz.mydns.jp

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

11–50 employees

Short description

KDK is a Japanese private software development firm founded in 1999, operating from Osaka, Tokyo, and Nagoya. It builds custom enterprise software, dispatches engineers via SES, runs a Kinect-based VR rehabilitation system (Kine-Riha), and offers medical equipment management (MICS) to healthcare, manufacturing, and retail clients.

Ownership category

akta.pro rank

Product category

Custom Software Development

NAICS

Custom Computer Programming Services (541511), Computer Systems Design and Related Services (5415), Computer Training (611420), Professional and Management Development Training (61143)

SIC

Services-Computer Programming Services (7371), Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Integrated Systems Design (7373), Services-Educational Services (8200)

akta.pro industry

PRIMARYBPAEAJAJ

Knowledge Management & KCS Programs

Business & Public Services/IT & Digital Services (Managed Services, Systems Integration)/IT Service Management (ITSM) & Service Desk

Keywords

• Custom software development
• Medical software systems
• Rehabilitation technology
• Engineering personnel dispatch
• Programming education

Headquarters

HQ city

Japan

HQ country

Indonesia

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

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

Revenue model

1. Custom Software Development: Bespoke software development for enterprises and organizations including medical systems, business management systems, web applications, simulators, and database systems.
2. SES/Personnel Dispatching: System Engineering Services dispatching of programmers, system engineers, and testers to client companies. Technical dispatch license (般27-301198).
3. IT Technician Training School: Programming education services offering courses in Java, PHP, C#, Python, and databases. Course-based revenue with durations ranging from 1-3 months.
4. Homepage Creation and Server Hosting: Website development, design, server management, and operation services for individuals and businesses.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

KDK is a Japanese software development company that designs and builds custom enterprise software with specialization in healthcare and rehabilitation systems (Kine-Riha VR rehabilitation on Microsoft Kinect, MICS medical equipment management), provides SES (System Engineering Services) personnel dispatching of engineers under license 般27-301198, and operates an IT technician training school offering programming courses in Java, PHP, C#, Python, and databases. Client work spans medical institutions, manufacturers, supermarkets, and academic institutions across Japan.

Product overview

KDK (株式会社kdk/考道館) is a software development company offering a portfolio of products centered around medical/rehabilitation software and general business systems. The core products include Kine-Riha, a Microsoft Kinect-based virtual reality rehabilitation system, and MICS, a medical equipment management system. Additional offerings include naphtha trading simulation systems, personal information management systems, and rehabilitation mobile applications. The company also provides homepage creation services and operates an IT technician training school. The products span from specialized healthcare applications (Kine-Riha, MICS) to general business automation tools (WBS management, mark sheet reading, device management), with services supporting their software development and workforce development needs.

Differentiator

Problem solved

Functional benefit

Brands

• キネリハ (Kine-Riha): Virtual reality rehabilitation system using Microsoft Kinect for motion capture and rehabilitation therapy
• MICS

Products and services

• Kine-Riha (キネリハ) Rehabilitation System Proprietary VR rehabilitation platform for hospitals and day care centers that uses Microsoft Kinect body tracking for physical therapy sessions, eliminating the need for large rehabilitation equipment or handheld controllers.
• MICS (Medical Instrument Check System) Enterprise medical equipment management system for hospitals that tracks device lending, return, repair, disposal, depreciation, and training history across multiple wards using barcode scanning.
• Custom Software Development Services End-to-end custom software design and development service for Japanese enterprises and individuals, including business automation, inventory management, personnel management, database improvement, and homepage creation.
• SES Personnel Dispatching Contract engineer dispatch service supplying programmers, system engineers, and testers to Japanese firms facing labor shortages, including both salaried employees and affiliated freelancers.
• IT Technician Training School Beginner-friendly programming education service for individual learners, covering major languages and databases with freely downloadable textbooks and an option for in-person classroom attendance in Osaka.
• Naphtha Trading Simulation System Trading simulation software for chemical industry buyers that models naphtha pricing, currency impact, purchase/transfer methods, and profit scenarios for domestic and international transactions.
• Personal Information Management System Role-based personal information management tool with dual-login security for highly sensitive records such as MyNumber and phone numbers, enforcing least-privilege editing by user role.
• Rehabilitation Mobile Tool (Android/iPhone) Mobile rehabilitation game app that adapts difficulty to the user's disability level, released for both Android and iPhone platforms to support at-home therapy.
• Health Examination Input System Web-based system that captures and consolidates health examination results for collective management within enterprise or institutional workflows.
• Mark Sheet Reading System Optical mark recognition software that automates reading and processing of mark sheet-based examinations for educational and administrative use.
• Device Management System Internal device lending and movement tracking system that records purchase, sale, transfer, and current location of organizational devices using barcode readers.
• WBS Progress Management Tool Work breakdown structure progress tracker that sets standard times for training or project tasks and alerts managers when items slip behind schedule.
• POS Register API Development Retail POS integration service that designs local databases and implements the register-to-headquarters transmission layer for supermarket chains.
• Homepage Creation and Management Service Website creation, design, server hosting, and ongoing management service for personal and business customers in Japan.

Quantifiable outcome

• Saves space with 1.8m distance requirement for full-body motion capture rehabilitation
• +1 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability4 records

Feature4 records

Scale indicators5 records

Recent moves4 records

Expansion highlights3 records

Broad incumbents

• Information Services International-Dentsu (ISID): Established Japanese IT services and consulting subsidiary of Dentsu that delivers custom software, SI, and digital transformation services for enterprises and financial institutions. Overlaps with KDK's SI and custom dev work as part of a much broader portfolio that includes marketing-tech and ad-business solutions.
• TechnoPro Holdings: Japan's largest independent technical staffing and outsourcing group, providing engineer dispatch and outsourcing across IT, R&D, and construction. Directly competes with KDK's SES dispatch business at massive scale, but in a much broader technical-staffing scope that includes manufacturing and engineering roles beyond software.
• Pasona Group: Japanese HR services group with dedicated IT engineer staffing and BPO arms. Pasona Tech overlaps with KDK's SES dispatch model and its HR expertise enables broader talent-solution offerings that small dispatchers like KDK cannot match.

Direct peers

• TIS Inc. Japanese IT services group providing custom development, system integration, and outsourced engineering services to enterprise clients across financial services, manufacturing, and public sector. Directly comparable to KDK's custom software + SES model, scaled up to a multi-thousand-person delivery organization.
• BIPROGY: Major Japanese IT services firm (formerly Nihon Unisys) providing custom software development, systems integration, and outsourcing to enterprise customers across healthcare, manufacturing, and finance. Highly comparable to KDK's core custom-software and SI work, though at significantly larger scale and with broader industry coverage.

Emerging players

• Medley: Japanese healthcare digital platform operating job matching (Job Medley), medical online consultation, and hospital SaaS (Pharma DB) tools. Shares KDK's healthcare-software orientation but addresses a different sub-segment - provider/patient workflow rather than rehab and medical-instrument management.
• CureApp: Japanese digital therapeutics startup developing software-as-a-medical-device products for conditions including addiction and hypertension. Adjacent to KDK's clinical/medical software focus (Kine-Riha, MICS), but CureApp's regulated SaMD pipeline is broader and more productized than KDK's bespoke rehab system.
• Allm: Japanese digital health company building EMS dispatch (Join), medical communication (MySOS), and COVID/medical workflow platforms. Comparable to KDK as a Japan-headquartered healthtech firm with custom-built clinical and workflow applications - more focused on emergency dispatch and patient engagement than rehabilitation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/kodokan_KDK

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 KDK