Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Document360 - Self-service knowledge base software focused on SaaS Products & Enterprise Software Projects.
Perfect Wiki - Build and organize your knowledge base of company resources without switching between workspaces
ProProfs Knowledge Base - ProProfs Knowledge Base is a cutting-edge knowledge management software that assists businesses to reduces support tickets by self-help and create online manuals, guides, wikis, documentation, FAQs and more.
Pages by Process Street - Pages is a free-for-everyone knowledge base from Process Street.Try it out!
Onna - Onna centralizes organizations' most common information platforms like Confluence, Slack, Gmail, Drive, and Dropbox.