Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Confluence - Confluence is content collaboration software that changes how modern teams work
Perfect Wiki - Build and organize your knowledge base of company resources without switching between workspaces
Slack - A messaging app for teams who see through the Earth!
Pages by Process Street - Pages is a free-for-everyone knowledge base from Process Street.Try it out!
Yammer - Yammer is a leading enterprise social network used by more than 200,000 companies worldwide, including 85% of the Fortune 500, to get work done smarter and faster. Sign Up Today.