2025-12-03
NewWebsite Renewed
We have renewed our website with expanded service information, a new contact form, and a more user-friendly design.
Generative AI PoC & Prototype DevelopmentYour Ideas + Our Expertise, Delivered
"Can you build an AI system like this?" — We answer that question. We listen carefully to your requirements and deliver working prototypes with added value. Let's create the optimal solution together.
Proposal-Driven Prototyping
We don't just build — we propose added value.
Validate with working prototypes before full-scale development.
+Value
Co-create
Our Services
Services & Solutions
We provide solutions that combine the latest generative AI and network technologies to solve your business challenges.
Generative AI Development & PoC Support
Proposal-driven prototyping and system development for enterprises using both cloud LLMs (GPT, Claude, Gemini) and local LLMs like Qwen and Gemma. End-to-end support from technology selection to implementation and validation.
AI-DLCSpec Driven DevelopmentContext Engineering
RAG & Agentic RAG System Development
Building optimal RAG systems combining vector DB, MCP, and agent technologies. Full deployment support including evaluation and monitoring systems.
AI Agent Development
Design and development of AI agents that autonomously execute tasks. By building robust agent harnesses, we enable business workflow automation, decision support, and complex task automation.
Agent HarnessMCP
Full-Stack Development
Comprehensive development capabilities from low-level to application layer, combined with generative AI for system automation, optimization, and new user experiences.
Document AI Development
Automated processing of business documents (Word, Excel, PDF) using generative AI. Streamlining document workflows including contract review, report generation, and data extraction.
Business Areas
Generative AI Development
System development using GPT, Claude, Gemini, and local LLMs like Qwen and Gemma
PoC & Prototyping
Proof of concept for business automation using generative AI
AI Agent Development
Design and development of AI agents that autonomously execute tasks
RAG & Agentic RAG
RAG systems combining vector DB, MCP, and agent technologies
AI Consulting
Generative AI adoption support, technology selection, training
Machine Learning
Design, development, and tuning of machine learning systems
Latest News
News
Latest announcements and technical updates.
2019-04-19
Add FriendLINE Official Account Launched
We have launched our LINE official account. Feel free to contact us via chat.
2019-01-04
Phone Number Change Notice
Yellowback Inc. has changed its main phone number. Please note the new number is effective as of January 1, 2019. Our services remain unchanged.
About Us
About Yellowback
Providing software design and implementation for network and machine learning since 2005
Company Information
CompanyYellowback Inc.
LocationKawasaki, Kanagawa, Japan
FoundedOctober 2, 2005
Capital¥1,000,000
CEOHideki Ono
Our Mission
We provide development, PoC (Proof of Concept), and consulting for business automation and efficiency using generative AI technology. We propose and implement solutions to solve your business challenges using cutting-edge AI technologies such as RAG and LLM.
Track Record
20+ Years in Business
Founded in 2005. Long-standing technical expertise and trust.
Extensive ML & GenAI Projects
Supporting numerous machine learning and generative AI projects since 2016.
Long-term & Spot Projects
Wide range of experience from long-term partnerships to spot projects.
Selected clients (in no particular order)
Major Think TankMajor System IntegratorMajor Telecom Research LabFinancial Tech StartupTelecom StartupNetwork Equipment VendorManufacturing Solutions CompanyDevelopment Consulting Firm
Industries Served
Finance
Account opening, investment trusts, automated screening
Legal & Contracts
Contract review, legal document processing
IP & Patents
Patent search, technology trend analysis
Research Institutions
R&D support, technology research
Technology Areas
Generative AI
Large Language Models, RAG, agent harnesses, etc.
Natural Language Processing
Text analysis, semantic understanding
Data Analysis
Big data analysis, visualization
ML Algorithms
Implementation and application of various ML methods
Cloud AI Infrastructure
Cloud implementation of AI systems
Private Network AI
AI solutions in private/closed networks using local LLMs like Qwen and Gemma
Company History
2016
Entry into AI Business
Started machine learning and AI-related business.
2011
Headquarters Relocation
Relocated headquarters from Arakawa-ku, Tokyo to Kawasaki, Kanagawa.
2006
Incorporation
Incorporated as Yellowback Inc. Capital: ¥1,000,000. CEO: Hideki Ono.
2005
Founded
Founded in Arakawa-ku, Tokyo. Started software design and implementation for network products and services.
Contact Us
Contact Us
For questions about our services, quotes, or consultations, please feel free to contact us.