System Development & AI
We plan, design, build and maintain web apps, mobile apps and business systems, and use generative AI to take repetitive work off people's hands. Our stack includes React, Next.js, TypeScript and C#.
Talk to usTurning the time AI savesinto time with the peoplewho matter.
Saito Tech Plus is an IT company based in Tokyo, Japan. We build business systems and apply AI to everyday work, so that people have more time for their families, friends and themselves.
BUSINESS
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Petreco Employee Benefits
A pet-care benefit for companies in Japan. Employees can ask licensed veterinary nurses about their pets' health and behavior through LINE, the messaging app.
Visit site (Japanese)Saiplu Game Development
Our game label makes games you'll want to come back to again and again. Browser games are available now, with more titles coming to Steam.
Visit site
PHILOSOPHY
MISSION
VISION
OUR VALUES
Using technology to give people more room in their daily lives.
With AI and business systems, we reduce everyday effort and burden, creating more time and peace of mind. What we want to deliver is not just a convenient system, but the richer time that lies beyond it.
A society where everyone can value both work and life.
A world where people find meaning in their work while still making time for family, friends and themselves. We will help build that future through technology.
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People before technology.
Technology is a means to make people happy. We think about the people and lives beyond the product, not just novelty or convenience.
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Take small problems seriously.
A small inconvenience for one person may be a heavy burden. We listen closely and build what is truly needed.
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Be honest, and exceed expectations.
We say clearly what we can and cannot do, take responsibility for our work, and value trust with our clients and teammates.
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Enjoy challenges and keep growing.
We try new things without fear of failure, embrace new technology and ideas, and keep making something better than yesterday.
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Value our own happiness, too.
We don't sacrifice our own happiness to create it for others. We care about our time with family and friends, and time to be ourselves.
COMPANY
| Company name | Saito Tech Plus Inc. 株式会社さいとうテックプラス |
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| Founded | December 5, 2025 |
| Address | 8F-B Hirokoji Building, 1-17-6 Ueno, Taito-ku, Tokyo 110-0005, Japan |
| Business | Web, mobile and business system development / AI and automation for business efficiency / Employee benefit services / Game development |
| Registration | Registered under Chiba Prefecture's program for companies supporting families, schools and communities ちば家庭・学校・地域応援企業等登録制度 登録企業 |
Let's talk aboutyour next system.
Our contact form is in Japanese, but you are welcome to write to us in English.