What KCC does

KCC (株式会社ケイ・シー・シー) is a privately held Japanese ICT services company founded in 1984 and headquartered in Koto-ku, Tokyo. It operates across five integrated service domains: application development (Java/WEB systems and core business systems), communication network systems development (5G/4G core networks, MVNO packet cores with policy and billing control, fixed-line telephone systems, and 5G Standalone network slicing), technical support (help desk and account support for major vendor products), system infrastructure construction (AWS cloud server builds, large-scale banking remittance systems, and Splunk-based SIEM security for government and rail/broadcast clients), and proprietary products & services led by the SmartDeaf sign-language learning app.

The company serves enterprise and government clients primarily in the Kanto region of Japan, with disclosed engagements spanning a major city bank (15+ year core banking and remittance infrastructure relationship), national financial associations, government agencies, railway companies, broadcasters, an MVNO provider, a major Japanese newspaper, and care-insurance industry organizations. Underlying technology centers on Java and WEB development, server virtualization, public cloud (AWS), and SIEM (Splunk) security, with proprietary assets including the SmartDeaf video dictionary and a custom calculation engine for Japan's long-term care insurance system.

KCC's revenue model is dominated by B2B professional services delivered through direct enterprise engagements at quote-based pricing, supplemented by a modest recurring-revenue stream from its self-developed SmartDeaf subscription product. Marketing is conducted primarily through its corporate website, and distribution is exclusively direct-to-enterprise within Japan. The firm is led by President and Representative Director (COO) Takahiko Abe and last disclosed a capital base of ¥250M following a 2014 capital increase. In April 2026, KCC divested its non-core 'Shiraseru Bus' notification service, indicating ongoing portfolio focus on its five core ICT lines.

Name

KCC

Legal name

株式会社ケイ・シー・シー

Website

https://kcc.co.jp

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

251–500 employees

Short description

KCC is a privately held Japanese ICT services company founded in 1984, providing application development, 5G/MVNO network systems, technical support, and SIEM/cloud infrastructure to enterprise and government clients in Japan, plus the SmartDeaf accessibility app.

Ownership category

akta.pro rank

Product category

IT Services and System Integration

NAICS

Custom Computer Programming Services (541511), Computer Systems Design and Related Services (5415)

SIC

Services-Computer Programming Services (7371), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Developer Tooling & SDK Platforms (BPAMAOAD)

akta.pro secondary industry

Knowledge Management & KCS Programs (BPAEAJAJ)

Keywords

• Custom software development
• Telecom network systems
• IT infrastructure services
• Technical support services
• System integration

Headquarters

HQ city

Koto

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Application Development Services: Custom system development including WEB systems, core business systems, and social infrastructure control systems across various industries.
2. Communication Network System Development: Mobile communication network development including 5G core networks, MVNO infrastructure, and fixed-line telephone systems.
3. Technical Support Services: Technical support and account support services through major vendor support portals, handling product inquiries and customer system maintenance.
4. System Infrastructure Construction: Large-scale system infrastructure construction and operational maintenance for major IT enterprises and financial institutions.
5. Products & Services: Self-developed products and services including SmartDeaf smartphone application.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

KCC delivers custom ICT engineering services across five domains: application development (Java/WEB and core business systems), communication network systems development (5G Standalone, MVNO core, fixed telephone), technical support (vendor help desk and account support), system infrastructure construction (AWS cloud, large-scale banking systems, Splunk SIEM), and self-developed products such as the SmartDeaf sign language learning video dictionary app. Offerings are sold primarily to enterprise and government clients in Japan.

Product overview

KCC is a technology services company offering five integrated business domains: Application Development (ウェブシステム・基幹システム・業務システム), Communication Network Systems Development (mobile/5G networks, fixed telephone), Technical Support (help desk and account support), System Infrastructure (cloud server construction, SIEM security), and Products & Services. The portfolio includes the self-developed SmartDeaf sign language learning video dictionary app. Services are primarily B2B focused, supporting clients in financial, telecommunications, government, and healthcare sectors.

Differentiator

Problem solved

Functional benefit

Brands

• SmartDeaf: Sign language learning video dictionary app designed for smart devices, featuring model videos with facial expressions and mouth movements, with offline playback capability.

Products and services

• SmartDeaf SmartDeaf is a smartphone video dictionary application designed for sign language learners. It provides real-action videos showing facial expressions and mouth movements essential to sign language communication, supports reversed video playback for easier self-practice, offers offline playback, and includes downloadable vocabulary modules.
• Application Development Services Custom application development services using Java and WEB technologies, covering web systems, core business systems, and enterprise applications. Includes news article delivery systems, financial association business package systems, and care insurance reimbursement calculation engines, delivered to enterprise and government clients.
• Communication Network Systems Development Development services for communication network systems, including 5G Standalone (SA) networks with network slicing, MVNO mobile communication packet core nodes with policy and billing control, and wireless fixed telephone systems for rural and island areas. Targeted at telecom carriers and MVNO providers.
• Technical Support Services Technical support and help desk services for major vendor products, plus account support for client systems including pre-incident prevention, direct on-site resolution, and specialized product support. Delivered to enterprise and government clients.
• System Infrastructure Services System infrastructure construction and operational maintenance including AWS-based public cloud server builds, large-scale banking system infrastructure (accounting and remittance) for major city banks, and SIEM security implementation using Splunk for government agencies, railway companies, and broadcasters.

Named customers8 records

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators1 record

Recent moves5 records

Expansion highlights3 records

Direct peers

• Internet Initiative Japan (IIJ): IIJ provides network services, cloud infrastructure, and security solutions to Japanese enterprises, including MVNO and telecom infrastructure work. Comparable to KCC's communication network systems development and system infrastructure practices.
• DTS Corporation: DTS is a Japanese IT services firm specializing in system development, cloud, and embedded/network engineering for enterprise clients. Comparable to KCC in mid-sized Japanese professional services positioning with similar finance and telecom customer exposure.
• Nihon Unisys (now BIPROGY): BIPROGY (formerly Nihon Unisys) delivers custom system development, cloud, and managed services to financial institutions and government in Japan. Directly comparable to KCC in serving city banks and public agencies with bespoke IT solutions.
• Otsuka Corporation: Otsuka Corporation is a Japanese mid-sized IT services and solutions provider focused on application development, system infrastructure, and technical support for enterprises. Closely comparable to KCC in service portfolio mix and B2B Japan-domestic orientation.
• Fuji Soft (now BS Group post-acquisition): Fuji Soft / BS Group is a Japanese IT services company providing embedded systems, application development, and infrastructure services to enterprise and public-sector clients. Comparable to KCC in mid-sized professional services with multi-domain delivery.
• SCSK Corporation: SCSK provides system development, infrastructure services, and BPO to financial institutions, manufacturers, and telecom carriers in Japan. Overlaps directly with KCC's application development, infrastructure construction, and enterprise field sales motion.
• TIS Inc. TIS Inc. is a Japanese mid-sized IT services company offering custom system development, cloud infrastructure, and managed services to financial, public sector, and enterprise clients. Closely comparable to KCC in business model, customer mix, and Japan-domestic mid-market positioning.

Broad incumbents

• Fujitsu Limited: Fujitsu is a global IT services and infrastructure provider serving Japanese banks, government, and telecom. Overlaps with KCC in core banking systems, SIEM/security, and network solutions but operates at significantly larger scale.
• NEC Corporation: NEC provides IT services, network infrastructure, and security solutions to Japanese enterprises and government. Comparable to KCC in telecom network and public-sector SIEM deployments, though NEC operates globally and at much larger scale.
• NTT Data Group: NTT Data is the largest Japanese IT services incumbent serving finance, government, and telecom with broad system integration, cloud, and consulting capabilities. Competes with KCC for the same enterprise accounts but at vastly greater scale.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

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 KCC