Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates

Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.

Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.

OneBar - AI-powered Q&A knowledge base for Slack teams

Nylas Mail - The Nylas Cloud API powers your application with email, calendar & contacts features. Built-in features for better email, calendar, and contact management.

DokuWiki - DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.