Create meaningful progress through technology and dialogue.
Listen closely. Look beyond what was asked. isub is an engineering company that brings people and technology together to create new value.
Listen deeply. Think together. Go beyond expectations.
Development begins with dialogue between people. We listen carefully to clients, users, and fellow builders, respond through technology, and keep thinking about the value beyond the immediate request.
We want software to expand what people and businesses can do.
isub began with a conviction that information technology can serve people and support society.
Technology alone is not enough. We care about the purpose behind the build, listening to people with attention, and creating an environment where engineers can take on meaningful challenges.
We build alongside client teams, grow products of our own, and shape new ideas into working systems. Through those three practices, we will keep learning and support what comes next for businesses and society.
isub Inc.Company profile
- Company
- isub Inc.
- Officers
- President & CEOSeondong LeeDirector, Sales & Marketing DirectorSaeko Noike
- Established
- February 20, 2008
- Capital
- JPY 10 million
- Address
- Shimazaki Building 2F, 2-16-6 Mizonokuchi, Takatsu-ku, Kawasaki, Kanagawa 213-0001, Japan
- Business
- SES and engineering partnerships
- Planning, development, and operation of our own products
- Custom development of web services and business systems
Access
- Address
- Shimazaki Building 2F, 2-16-6 Mizonokuchi, Takatsu-ku, Kawasaki, Kanagawa 213-0001, Japan
- Tel
- 044-712-3921
- Fax
- 044-712-3931
The moment that started isub.
While studying information processing at university, I encountered a piece of software that changed how I saw technology. I remember thinking: information technology can help people this much. One day, I want to create software that supports society. That feeling became the trigger for starting isub.
I want to contribute to society through business, and I want to create an environment where engineers can work positively and enjoy taking on challenges. isub continues to face technology with both of those ideas at its core.

Shaping how AI works with people and society.
AI is changing how software is built and how work moves forward. isub sees AI not only as a tool for efficiency, but as technology that can support human judgment, team dialogue, and business progress. We stay close to social change and real work, turning AI into value people can actually use.
- Society
- isub
- AI Agent
- Work
- Value
Build what’s next with isub.
Tell us about the challenge facing your business or engineering team.
