Modusign

Modusign (모두싸인) is a South Korean company providing SaaS-based electronic signature and electronic contract services. Contracts can be sent for signature by email, KakaoTalk message or a dedicated link, and counterparties complete the agreement by applying an electronic signature or electronic seal without meeting in person; completed documents are available to all parties as a PDF and via link, removing the need to retain paper originals. The company states that electronic signatures made on the platform carry the same legal effect as paper signatures under Korea's Electronic Signature Act, and that document integrity and authenticity are verified using AATL-based certificates.

The product line spans the drafting, review, execution and management stages of a contract. Modusign Electronic Signature covers document dispatch, signing, storage and search in one service. Modusign Cabinet provides consolidated storage of executed contracts with AI automatic classification, extraction of key contract data, smart search, schedule management and a contract dashboard. Modusign Review, described on the site as nearing launch, uses AI to flag clause-level risks such as unfavorable provisions or missing mandatory items in order to shorten contract review time. Additional offerings include an API for embedding signing into internal systems and app or web services with integrations to groupware such as ERP, HRM and CRM, and a security package with single sign-on, audit logs and IP access control. The company also lists security and compliance certifications including ISMS-P, CSAP and ISO standards, and distributes a public-sector edition (모두싸인 공공용) through the Naver Cloud Platform government marketplace.

Beyond core electronic contracting, Modusign has stated plans to extend into full Contract Lifecycle Management (CLM) and Legal AI services built on generative AI and its accumulated contract data, and to pursue the public-sector market after establishing a position in the private sector.

Business model

B2B SaaS sold to companies and public institutions, with free trial and consultation-led paid adoption, an API tier for system integration, and add-on security packages; a public-sector edition is offered through a cloud marketplace.

Subscription-based software service for corporate and institutional customers, with API usage and security add-on packages alongside the core signature product.

Traction

As of April 1, 2024 the company reported over 270,000 corporate and institutional members. Its website cites more than 9 million service users, more than 45 million signatures and documents used, and about 700 companies integrating via API. The company reported reaching positive cash flow in January 2024.

Latest developments

The April 2024 Series C was earmarked for extending the platform across drafting, review, storage, execution and management of contracts through a CLM offering and for developing generative-AI legal services, as well as entering the public-sector market. The website lists Modusign Cabinet for AI-based contract management as available and Modusign Review for AI clause risk analysis as imminent.