Due diligence (DD) is the systematic investigation conducted by a buyer or investor before completing a transaction. In private equity and venture capital, due diligence typically encompasses financial analysis (quality of earnings, working capital, debt), legal review (contracts, IP, litigation), commercial assessment (market size, competitive position, customer concentration), management evaluation, and increasingly, ESG and cybersecurity audits.
The depth and cost of due diligence scales with deal size. For large buyouts, DD processes can involve dozens of advisers and cost millions of dollars over several months. In early-stage venture, founders may be asked to provide key metrics, reference checks, and a detailed data room, with the process completed in weeks. Rigorous due diligence is the primary mechanism by which private market investors seek to avoid capital loss.