atWare

What atWare does

atWare (株式会社atWare) is a Japanese systems integrator founded in December 2004 and headquartered in Yokohama, Kanagawa (WeWork Minato Mirai). The firm specializes in Java and Jakarta EE-based custom software development and digital transformation support for large Japanese enterprises. Named reference customers concentrate in Japanese telecommunications, including NTT group entities (NTT, NTTぷらら, NTTドリンコ) and KDDI. as of June 2026 the company reported approximately 41 employees and operates three primary service lines: systems development and operations, in-house development support (embedded engineer dispatch), and proof-of-concept / product validation, supplemented by agile coaching and training.

The company's technical foundation is rooted in Java/Jakarta EE expertise, augmented by AWS cloud consulting capabilities following its 2016 APN Consulting Partner accreditation. Revenue is generated through project-based systems integration contracts, embedded engineering support, and bespoke PoC work, with the firm maintaining a Vietnam subsidiary (atWare Vietnam Co., Ltd., est. 2021) for offshore delivery capacity. Notable internally developed assets include the Collaboration Canvas event series and the Tracolite project management tool, and the company has established an internal operating model of self-organizing "company-internal company" units since December 2021. Group-company structures include 函館ラボラトリ (Hokkaido), 未来シェア, and Zabuton, alongside a 10% stake in the UniARTS joint venture with Sirius Vision.

atWare is privately held with no disclosed external funding, having grown organically over a 20+ year history. Recent strategic emphasis has shifted toward AI-augmented development practices, with Claude Code and Model Context Protocol (MCP) integration serving as the primary AI coding stack as of 2026, alongside internal RAG tooling and Gemini-powered operational automation. The firm's go-to-market remains anchored in long-tenured enterprise relationships rather than open-market sales.

Name

atWare

Legal name

株式会社アットウェア

Website

https://atware.co.jp

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

11–50 employees

Short description

atWare is a Japanese systems integrator founded in 2004, specializing in Java/Jakarta EE custom software development for large Japanese enterprises including NTT group and KDDI, with three service lines spanning development, embedded in-house support, and PoC validation.

Ownership category

akta.pro rank

Product category

Systems Integration Services

NAICS

Computer Systems Design and Related Services (54151), Computer Systems Design Services (541512), Custom Computer Programming Services (541511)

SIC

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

akta.pro primary industry

Application Integration & API/Middleware Services (BPAEAAAF)

akta.pro secondary industry

IT Architecture & Solutions Design (Enterprise/Cloud Architecture, Integration) (EDABAFAK)

Keywords

• Systems integration services
• Custom software development
• Agile coaching
• Enterprise Java development
• Cloud-native applications

Headquarters

HQ city

Yokohama

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. Software Development & Systems Integration: atWare generates revenue through custom software development and systems integration services, primarily serving large Japanese enterprises including major NTT group companies. The company acts as a systems integrator and technical consulting partner.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

atWare (株式会社アットウェア) is a Japan-based systems integration company providing custom software development, systems integration, and technical consulting services for large enterprises. The company specializes in cloud-native web applications, APIs, distributed processing systems for big data, and IoT-cloud integrations using Java/Spring Boot and AWS. Beyond development, atWare offers in-house development support (consulting, coaching, hands-on project participation) and proof-of-concept/production validation services. It also delivers Agile coaching and training, with deep Java EE (Jakarta EE) expertise serving major Japanese telecommunications clients such as NTT and KDDI.

Product overview

atWare is a systems integration company offering three core service lines: (1) Systems Development and Operations covering cloud-native web application development, API design, distributed big data systems, and IoT-cloud integrations using Java/Spring Boot and AWS; (2) In-House Development Support including consulting, coaching, and hands-on project participation to build internal capabilities; and (3) Proof of Concept and Product Validation services to validate technical feasibility and business viability before full-scale development. Additionally, they provide specialized Agile Coaching and Training services. The company has developed proprietary AI-augmented development practices centered around Claude Code with MCP integration, internal RAG systems for document retrieval, and organizational frameworks for AI-driven development workflows.

Differentiator

Problem solved

Functional benefit

Products and services

• Systems Development and Operations Custom software development and operational maintenance services covering requirements definition, design, development, testing, and ongoing support. Specializes in cloud-native web applications, APIs, distributed processing systems for big data, and IoT-cloud integrated systems using location and map data. Built on Java/Spring Boot and AWS.
• In-House Development Support Consulting and coaching services for organizations aiming to develop software in-house, including team building, mindset cultivation, and technical training. Provides hands-on project participation and Agile development methodology support.
• Proof of Concept and Product Validation Technical feasibility studies, business validation of new services, risk identification, cost analysis, and performance evaluation to validate requirements before design and development phases.
• Agile Coaching Services Professional services to help organizations build stronger teams and achieve Agile transformation. Includes team formation support, existing team effectiveness improvement, and organizational improvement using Agile principles.
• Agile Training Services Training programs covering Agile and Scrum/Kanban fundamentals, practical implementation skills, and hands-on workshops for teams adopting Agile methodologies.

Named customers4 records

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration9 records

AI capability10 records

Feature1 record

Partnerships

Six partnerships are on record, tiered core.

• atWare Vietnam Co., Ltd.OthersOverseas subsidiary of atWare, extending the company's software development capabilities internationally.
• 株式会社ZabutonOthersA related/subsidiary company of atWare group.
• 株式会社函館ラボラトリOthersA related/subsidiary company of atWare group.
• 株式会社未来シェアOthersA related/subsidiary company of atWare group.
• シリウスビジョン株式会社coreStrategic or Co-development PartnerJoint venture partner in 株式会社UniARTS. atWare collaborates with シリウスビジョン株式会社 on this joint venture entity.
• JJUG (Japan Java User Group)OthersatWare participates in the Japan Java User Group community through events such as JJUG CCC, contributing to the Java developer ecosystem in Japan.

Scale indicators1 record

Recent moves13 records

Expansion highlights5 records

Broad incumbents

• BIPROGY: Major Japanese systems integrator with a broad portfolio spanning finance, manufacturing, and telecom clients. Comparable to atWare as a Japanese SI serving enterprise customers, but at vastly larger scale.
• TIS Inc. Large Japanese IT services group providing systems integration, consulting, and outsourcing. Comparable as a domestic SI competitor, though TIS operates at much larger scale with broader industry coverage.
• Internet Initiative Japan (IIJ): Japanese IT services and network solutions provider with significant systems integration practice. Comparable as a domestic technology services peer serving enterprise and telecom clients.
• Nomura Research Institute (NRI): Leading Japanese consulting and systems integrator. Comparable to atWare as a top-tier Japanese SI serving financial, telecom, and industrial enterprise clients, though at much greater scale and breadth.
• NTT Data: Largest Japanese systems integrator, part of NTT group. Comparable as the parent ecosystem in which atWare's telecom customers operate; a potential competitor or partner depending on project scope.
• Accenture Japan: Global consulting and SI incumbent with major Japan operations. Comparable as an enterprise systems integration peer, particularly for digital transformation projects in telecom and large Japanese corporates.

Direct peers

• Sun* Inc. Japanese boutique engineering firm specializing in custom software development with offshore (Vietnam) delivery capacity. Closest comparable in business model — boutique SI with Japan headquarters and Vietnam engineering scale.
• Future Corporation: Japanese IT consulting and systems integration firm focused on financial and enterprise customers. Comparable as a mid-sized Japanese SI with similar custom development and consulting practices.

Emerging players

• Japan Computer Vision (now Dragon Fruit AI): Emerging player in Japan applying computer vision and AI to enterprise use cases. Comparable to atWare's AI/CV initiatives (Gemini business card digitization) as a peer exploring applied AI for Japanese enterprise workflows.

Others

• WingArc1st: Japanese software company providing business intelligence and document management solutions. Comparable as a Japanese enterprise software peer with overlapping customer base in large Japanese corporates, though focused on productized software rather than custom SI.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/atware_jp

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries5 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 atWare