Transforming software development through design.
DXSpec envisions a world where design documents become the team's shared language, revolutionizing Japanese software development with AI and real-time collaboration.
Vision & Mission
A world where design docs come alive
We're building a future where design documents are not static files, but living documents that teams reference and update in real time, powered by AI.
Democratizing the design process
We provide an environment where anyone can create high-quality design documents regardless of experience, dramatically improving productivity in Japanese software development.
Our Values
The principles that guide everything we do
Precision matters
Design documents are the foundation of development. We eliminate ambiguity and pursue accuracy and clarity.
Build together
The best designs don't come from one person. We harness collective intelligence through real-time collaboration.
AI × Human co-creation
AI doesn't replace humans — it amplifies creativity. We use technology to empower designers and developers.
Designed for trust
Enterprise-grade security and reliability. Protecting your data is our top priority.
Company Information
| Company Name | DXSpec, Inc. |
|---|---|
| Founded | April 2026 |
| Representative | Taro Yamada, Representative Director |
| Address | 1-1-1 Marunouchi, Chiyoda-ku, Tokyo 100-0005, Japan |
| Capital | ¥100 million |
| Employees | 35 (as of March 2026) |
| Business | Planning, development, and operation of SaaS-based software design support platform |
| Primary Bank | MUFG Bank, Marunouchi Branch |
Our Story
"Why, in 2026, are design documents still being created in Excel and Word?"
This question sparked the founding of DXSpec. In Japanese software development, enormous amounts of time are spent creating requirements definitions and basic design documents — a process that hasn't changed in 20 years.
Design documents are difficult to version-control, reviews happen through email threads. Misalignment between teams creates rework, causing project delays and cost overruns.
We were convinced that technology could solve this problem. Real-time collaboration, AI-powered design assistance, and workflows optimized for the Japanese SDLC. DXSpec was born as a platform that transforms design documents from "work" into "creation."
Today, over 150 companies use our platform, improving design process efficiency by an average of 40%. Our journey is just beginning.
Access
1-1-1 Marunouchi, Chiyoda-ku, Tokyo 100-0005, Japan
1-1-1 Marunouchi, Chiyoda-ku, Tokyo 100-0005, Japan
- 3 min walk from JR Tokyo Station (Marunouchi South Exit)
- 1 min walk from Nijubashimae Station (Chiyoda Line)
- 5 min walk from Otemachi Station (Mita Line)
Join us in shaping the future of design.
We're looking for people who share our mission and want to transform the future of software development.