Engineered for Impact.
Japanese Craftsmanship.
We build custom e-commerce platforms, web applications, and infrastructure for companies that want senior-level engineering without the senior-level budget. AI-augmented development means faster delivery, lower cost, and code that scales.
Book a Free Discovery Call→What We Do
From first commit to production operations — one team, direct access, no account managers.
Build
Custom software, built around your business
Custom E-commerce
E-commerce platforms built from scratch around your exact business logic — pricing rules, inventory workflows, multi-channel selling, whatever your model demands. No templates, no compromises.
Operate
Keep it running, keep it fast
Infrastructure & Hosting
We design, deploy, and manage the infrastructure your applications run on — so your team never has to think about servers, uptime, or scaling.
Advise
Senior technical guidance, no enterprise overhead
Technical Consulting
Architecture reviews, technology decisions, scalability planning — senior engineering judgment for your biggest technical questions.
About Solid Factory
Solid Factory Co., Ltd. was founded in Osaka in 1997. Over 25 years, we've evolved from packaged software development into a full-stack engineering studio — building custom e-commerce platforms, business applications, and cloud infrastructure for clients across Japan and beyond.
Our engineering lead has shipped production code at scale — including e-commerce solutions for one of Japan's largest apparel retailers. That enterprise-grade discipline now serves companies of every size, with the communication clarity and speed of a small team.
More about usFrequently Asked Questions
What technologies does Solid Factory use?
We build with modern web technologies: TypeScript, React, Astro, Node.js, and cloud infrastructure on AWS/GCP. For DTP automation we use Adobe InDesign SDK, Adobe ExtendScript, and AppleScript. On the database side we work with FileMaker, PostgreSQL, and SQL Server.
Do you work with overseas / English-speaking clients?
Yes. Our engineering lead is native-level English speaker with Silicon Valley experience. We handle projects for clients in North America, Europe, and Australia — with the cost advantage of Japan-based operations.
What is a typical project timeline and budget?
Projects range from 2-week sprints (¥500k–¥1.5M) for focused feature work to 3–6 month engagements for full-platform builds. We start with a free 30-minute discovery call to scope the work before committing to a timeline.
Do you offer ongoing support after launch?
Yes. We offer monthly retainer packages for continued development, bug fixes, performance tuning, and new features. Your software stays healthy and evolves with your business.
What makes Solid Factory different from a traditional agency?
You work directly with senior engineers — no account managers, no sales handoffs. We use AI-augmented development to deliver faster and at lower cost than traditional agencies, while maintaining enterprise-grade code quality.
Let's Talk
Book a free 30-minute discovery call. We'll discuss your project, timeline, and whether we're the right fit. No pressure, no obligation.
Phone
+81-6-6130-8115
Fax
+81-6-6130-8107
Head Office
Tatsuno Nishitenma Building 2F
3-1-6 Nishitenma
Kita Ward, Osaka
530-0047
Japan