Series A · Healthtech

mutex raises ¥281.6m Series A to expand Reze claims workflow

MTI, MEDIPAL Innovation Investment Limited Partnership and Nihon Keiei backed mutex through a new share issuance.

The ¥281.6m Series A will support extending Reze from pre-submission checks into claims preparation, correction and submission.

The software is already used by multiple medical institutions. mutex plans to expand deployments to hospitals and clinics as it develops a broader billing workflow.

Use of funds

Develop Reze toward end-to-end automation of claims preparation, inspection and submission

Expand deployments to hospitals and clinics

Funding history

Series A · This round¥281.6M

Sources

  1. 【レセプト請求業務の完全自動化へ】mutex、2.8億円の資金調達を実施prtimes.jp · Sep 30, 2026
  2. lp.reze.app