# AiRato

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/airato

- Industry: Healthcare IT
- Headquarters: Sendai, Japan
- Website: www.airato.jp
- Total disclosed funding: $0.8M
- Latest round: Seed (May 8, 2024)
- Investors on record: 6

## About

Based in Miyagi, Japan, and founded in 2022 by Yuri Kimura, Michiyuki Kakutani, and Ryo Ebina, Airat Co., Ltd., a.k.a. AiRato, operates as a healthcare IT company that focuses on the development and commercialization of radiation treatment and planning support services using AI (artificial intelligence). In October 2025, Airat Co., Ltd. raised JPY 170 million in venture capital from new investors Mitsui Sumitomo Insurance Venture Capital and SMBC Venture Capital. The cumulative amount raised in the pre-series A round, which combines the 1st and 2nd closes, was 630 million yen, and the cumulative amount of funds raised since its founding was 750 million yen.
The company provides AIVOT, a radiotherapy support software that has learned from data from the high-volume center in Japan and solves problems by automating various processes in intensity-modulated radiation therapy (IMRT). The software offers a wide range of features, including a quality control function for the treatment plan, a safety evaluation function for the treatment plan, AI-based automated contouring, AI-based automated planning technology, and more.

## Funding rounds

- Seed, May 8, 2024, $0.8M — Monex Ventures, Capital Medica Ventures, MTG Ventures, GxPartners, mint, Midvillage Co., Ltd.

## Investors

- Monex Ventures (https://capitalatlas.ai/funds/monex-ventures) — Seed
- Capital Medica Ventures (https://capitalatlas.ai/funds/capital-medica-ventures) — Seed
- MTG Ventures (https://capitalatlas.ai/funds/mtg-ventures) — Seed
- GxPartners (https://capitalatlas.ai/funds/gxpartners) — Seed
- mint (https://capitalatlas.ai/funds/mint) — Seed
- Midvillage Co., Ltd. — Seed