What Rosso does

Rosso is a Tokyo-headquartered Japanese IT services company founded in May 2006, specializing in machine learning and AI development, custom application development, and cloud infrastructure services. As of recent reporting the firm employs approximately 90 people and serves both Japanese enterprise and mid-market clients, with disclosed engagements spanning civil engineering, e-commerce, finance, payments, accounting, retail, chemical manufacturing, media, publishing, and internet/tech sectors. The company operates from a single office in Shibuya, Tokyo, and was acquired by CAC Holdings (Tokyo Stock Exchange Prime-listed conglomerate) as a wholly-owned subsidiary in April 2024, while maintaining operational independence.

Rosso's core technology portfolio combines services and proprietary IP. Its flagship service brands are Sakutto AI (full-lifecycle AI implementation covering consulting, PoC, design, development, integration, and operation) and Sakutto Cloud (AWS-based cloud adoption and management). Underlying these are proprietary technologies including ledger-type federated learning (patent pending, open-sourced as 'conlai' and 'pyConLAi' on GitHub in August 2025) and super-resolution OCR with approximately 2x reading accuracy. Product extensions include Sakutto CRM (SME-targeted cloud CRM launched April 2026 with unlimited-user pricing at ¥65,000/month) and Takumi-kun (on-device OCR for Japanese real estate property registrations, ¥264,000/year). AI modalities span natural language processing (including Japanese LLM fine-tuning with llama 2, rinna, and mpt-7b via LoRA), computer vision (YOLO-based defect detection), time-series forecasting (Prophet, lightGBM), and federated learning.

Rosso generates revenue through multiple streams: professional services contracts for custom AI/ML and application development, SES (System Engineering Service) engineer placement, AWS cloud consulting (with 3% APN partner billing discount), and emerging recurring subscriptions via Sakutto CRM and Takumi-kun licenses. GTM is sales-led direct enterprise motion complemented by content marketing, AWS/jdla community engagement, and job fair recruitment. The firm holds AWS Advanced Tier Service Partner status, JDLA regular membership (31st), ISO/IEC 27001 ISMS certification, and Privacy Mark certification, reflecting a compliance posture aligned with Japanese enterprise procurement requirements.

Name

Rosso

Legal name

株式会社Rosso

Website

https://rosso-tokyo.co.jp

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

51–100 employees

Short description

Rosso is a Tokyo-based Japanese IT services firm specializing in AI/ML development, custom application engineering, and AWS cloud consulting for enterprise and mid-market clients, with proprietary federated learning and OCR technologies, operating as a wholly-owned subsidiary of CAC Holdings.

Ownership category

akta.pro rank

Product category

AI and IT Consulting Services

NAICS

Computer Systems Design Services (541512), Custom Computer Programming Services (541511), Computer Systems Design and Related Services (54151), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182)

SIC

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

akta.pro primary industry

ERP/CRM/HRIS Implementation & Integration (BPAEAAAE)

akta.pro secondary industries

Enterprise AI Data & Knowledge Platforms (Vector Databases, Knowledge Graphs) (HDAEANAH), IT Operations Management (ITOM) Platforms (HDAEALAC)

Keywords

• AI development services
• Machine learning consulting
• Cloud infrastructure services
• Application development
• Digital transformation consulting

Headquarters

HQ city

Akasaka

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. 、受託開発 (Contract Development): Custom software development services including AI/ML, web applications, and infrastructure. Long-term project engagements with enterprise clients.
2. AI/ML Solutions (サクッとAI): AI implementation and consulting services including natural language processing, image/video processing, deep learning, and DX support. Ranges from single AI deployment to full infrastructure plus application development packages.
3. System Engineering Services (SES): Engineering personnel placement and system integration services connecting engineers with client companies.
4. Cloud Services (サクッとクラウド): Cloud adoption and management services including AWS consulting, implementation, and ongoing support.
5. Real Estate OCR (タクミくん): Annual license fee for installed real estate OCR application with unlimited usage during contract period.
6. CRM Subscription (サクッとCRM): Monthly subscription CRM service with unlimited users per organization.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels7 records

Core offering

Rosso is a Japanese IT services company that designs, develops, and deploys AI/ML solutions, custom web and business applications, and cloud infrastructure (primarily on AWS) for enterprise and mid-market clients. Its packaged offerings include Sakutto AI (AI adoption support), Sakutto Cloud (AWS cloud migration), Sakutto CRM (SME CRM), and Takumi-kun (real estate OCR), supported by proprietary technologies including Ledger-Type Federated Learning and Super-Resolution OCR.

Product overview

Rosso provides a platform-plus-products portfolio centered on AI/ML development and digital transformation services. The core offerings include Sakutto AI (AI adoption support covering NLP, computer vision, and predictive analytics), Sakutto Cloud (cloud adoption support), Sakutto CRM (a newly launched SME CRM with built-in business card OCR), and Takumi-kun (real estate OCR for property document digitization). Supporting these products is Rosso's proprietary ledger-type federated learning framework (台帳型連合学習, open source) and super-resolution OCR technology, both representing specialized AI capabilities embedded within or sold alongside the core service suite. Sakutto AI and Sakutto Cloud serve as the foundational AI and infrastructure platforms, while Sakutto CRM and Takumi-kun are specialized vertical applications that extend Rosso's AI/ML expertise into domain-specific solutions.

Differentiator

Problem solved

Functional benefit

Brands

• サクッとAI (Sakutto AI): AI solution service for enterprise DX promotion, covering consulting, PoC, model development, and deployment for image recognition, NLP, demand forecasting, and other AI applications
• サクッとクラウド (Sakutto Cloud)
• 超解像OCR (Super-Resolution OCR)
• 台帳型連合学習 (Ledger-Type Federated Learning)
• 不動産OCR タクミくん (Takumi-kun)
• サクッとCRM (Sakutto CRM)

Products and services

• Sakutto AI (サクッとAI) End-to-end AI implementation service covering strategy, PoC, design, development, integration, operation, and improvement for image analysis, natural language processing, and demand forecasting. Targeted at enterprises and mid-market firms lacking in-house AI expertise.
• Sakutto Cloud (サクッとクラウド) AWS cloud adoption support service providing cloud strategy proposals, infrastructure construction, operation, cost optimization, and a 3% AWS billing discount for APN partners. Targeted at enterprises and mid-market firms migrating to or optimizing AWS environments.
• Sakutto CRM (サクッとCRM) Cloud SaaS CRM for SMEs featuring built-in business card OCR, unlimited users per organization, customer/opportunity/sales/task management, and profit/loss tracking. Priced at 65,000 yen/month with unlimited users and a first-month free trial.
• Takumi-kun Real Estate OCR (不動産OCR「タクミくん」) Installed PC application that digitizes PDF property registration documents from legal affairs bureaus into structured data for real estate sales list creation. Processes documents entirely on-device for security; priced at 264,000 yen/year with unlimited usage during the contract period.
• Ledger-Type Federated Learning Open Source Framework (台帳型連合学習) Open source asynchronous federated learning framework (conlai server app and pyConLAi client framework) enabling AI model training across distributed clients without centralizing sensitive data or requiring GPU servers. Achieves 40%+ communication cost reduction with patent-pending technology.
• Super-Resolution OCR (超解像OCR) Proprietary OCR technology that enhances blurry, unfocused, or low-resolution images via super-resolution AI before text recognition, achieving approximately twice the reading accuracy of conventional OCR. Available as part of Rosso's AI service portfolio for Japanese-language document processing.
• Custom Software Development Services (受託開発) Custom software development services spanning AI/ML, web applications, and infrastructure for enterprise clients, delivered through long-term project engagements with scoped quotes based on project requirements.
• System Engineering Services (SES) Engineering personnel placement and system integration services connecting Rosso engineers with client companies for project-based engagements.

Quantifiable outcome

• 40%+ communication volume reduction in federated learning
• +2 more outcomes

Named customers11 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability13 records

Feature6 records

Partnerships

Four partnerships are on record, tiered major, core and minor.

• 青山シビルエンジニヤリング株式会社majorTechnology or Integration · 31 August 2022Ongoing technology partnership for digital signage and weather data applications. Rosso provides system development support for SPOT INFO NOTICE products - both digital signage system and mobile app.
• 日本ディープランニング協会 (JDLA)coreStrategic or Co-development Partner · 1 March 2021Regular member (31st) of Japan's Deep Learning Association. Participates in DL utilization promotion and industry development activities. Engineers actively contribute to JDLA study sessions.
• 株式会社AVILENminorStrategic or Co-development Partner · 22 July 2020Co-developed AI engineer training program 'インフラ基礎講座' combining Rosso's AI and infrastructure expertise with AVILEN's AI education capabilities.
• Amazon Web Services (AWS)coreTechnology or Integration · 1 July 2020AWS Advanced Tier Service Partner with APN certification. Rosso provides AWS cloud implementation, migration, and management services. Offers 3% discount on AWS monthly usage fees to clients.

Scale indicators7 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• AVILEN: Tokyo-based AI consulting and education firm that co-developed Rosso's AI engineer training program. Directly comparable as a Japanese boutique AI/ML consulting and implementation services provider serving similar enterprise and SME customers.
• ABEJA: Japanese AI platform company that collaborates with Rosso on AI projects (corrosion inspection, media analysis). Comparable as a Japanese AI/ML solutions provider serving enterprise customers with computer vision and predictive analytics.
• BrainPad: TSE-listed Japanese data analytics and AI consulting firm. Comparable as a domestic AI/data science services company offering analytics consulting, ML implementation, and DX support to enterprise customers.
• PKSHA Technology: TSE-listed Japanese AI company providing machine learning and natural language processing solutions to enterprises. Comparable as a domestic AI products and consulting company serving similar customer profiles in Japan.

Emerging players

• Preferred Networks: Japan's most prominent deep learning research-to-product company. Comparable through overlapping focus on proprietary deep learning technology and Japanese enterprise AI deployment, though at significantly larger scale and broader scope.
• DotData: US-Japan hybrid AI/ML company offering automated machine learning platforms. Comparable through overlap in predictive analytics, ML consulting, and Japanese enterprise AI deployment.

Broad incumbents

• Future Corporation: TSE-listed Japanese IT consulting and SI firm with strong DX and cloud practice. Comparable as an established Japanese IT services provider competing for the same enterprise AI/cloud consulting budgets.
• BIPROGY: TSE-listed Japanese IT services and SI company (formerly UNISYS Japan). Comparable as a mid-large scale Japanese SI firm offering application development, cloud, and consulting services.
• NTT Data: Largest Japanese IT services company and global SI incumbent. Competes with Rosso for enterprise DX/AI consulting engagements and cloud migration projects at the high end of the market.
• NRI (Nomura Research Institute): TSE-listed Japanese consulting and IT solutions firm with strong financial services and DX practice. Comparable as an established Japanese SI/consulting incumbent targeting similar enterprise AI and digital transformation budgets.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/rosso_tokyo
• Facebookfacebook.com/pages/%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BERosso/198209950265050

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Rosso