Notion

Growing companies run their entire internal wiki on Notion — company handbook, onboarding flows, engineering runbooks, policies, and team pages — replacing the usual mix of Confluence, Google Docs, and shared drives. Search, backlinks, and nested pages make institutional knowledge genuinely findable, which is where most wiki tools fail.

Product and design teams use Notion for specs, research repositories, and launch docs, with databases for roadmaps and decision logs. Linked databases mean a single PRD can appear in a sprint view, a quarterly roadmap, and a stakeholder page without duplication.

Founders and operators use Notion as a lightweight CRM and partnerships tracker in the early days — relationships, notes, and follow-ups in one database — before graduating to HubSpot or Airtable once the pipeline needs real automation and reporting.