Documize - Enterprise-grade wiki and knowledge management platform

HackMD - Fast and flexible, real-time collaborative markdown, inspired by Hackpad.

ReadTheDocs - Spend your time on writing high quality documentation, not on the tools to make your documentation work.

Dokit - The solution for disseminating know-how: work instructions, procedures, knowledge base, documentation techniques, product support, wiki enterprise.

Twake - Be more productive with Twake : the collaborative work platform to organize and manage all your projects on a single platform.

Widget-Board - Visual planning, curating and productivity tool