BtoB Platform Contract, by Infomart Corporation, is a cloud-based electronic contract platform built for business-to-business transactions in Japan. Both senders and recipients can complete agreements entirely online. The service is part of the broader BtoB Platform suite, which also covers ordering, invoicing, and specification documents.

Recipients can sign contracts via email verification without creating an account, keeping the process simple for business partners.

The service adds PDF signing, timestamps, and blockchain-based protection against tampering, meeting the requirements of Japan’s Electronic Signature Act.

Users can set up internal approval workflows, manage templates, track contract progress, and invite multiple parties per contract. The platform also offers paper contract scanning, full-text search, and deadline alerts.