Papermark

A secure virtual data room for sharing confidential documents during high-stakes transactions such as fundraising, mergers and acquisitions, and due diligence. It solves the problem of securely sharing sensitive documents while maintaining control, visibility, and trust. The target audience includes founders, finance teams, dealmakers, M&A advisors, venture funds, family offices, biotech companies, and enterprise security teams across startups to publicly traded enterprises. Positioned as an open-source platform with enterprise-grade security (SOC 2, ISO 27001) and the option to self-host, it differentiates by offering security as a default feature and building in public.

Key features

• Page-by-page analytics
• Granular permissions
• Dynamic watermarking
• NDA gating
• Audit logs
• IP allow-listing
• End-to-end encryption
• Self-hosting option
• SSO integration
• Custom branding
• Q&A functionality
• Data room freeze and archive