Insights on seed-stage fundraising, VC meetings, and startup evaluation.
Seed due diligence usually runs two to six weeks inside a two-to-three-month raise. Here is the real timeline, what happens in each phase, why it stretches for some founders and compresses for others, and a checklist to arrive with the hard questions already answered.
Technical due diligence is how investors confirm the engineering behind a startup is real: that the product scales, the security holds, the code is maintainable, and the company owns its IP. This guide breaks down what reviewers check line by line, what a polished demo hides, the AI-generated-code question reviewers now ask, and a seven-step readiness checklist so the same checks do not slow down every round.
Angel due diligence is the work that tells you whether a startup is real before you wire money. The largest study of angel returns found investors who spent more than 20 hours on diligence earned 5.9 times their money, versus 1.1 times for those who spent less. Here is what to check before you write the check: founders, market, traction, terms, and references, and how an individual angel's process differs from an institutional fund's.
The honest answer for 2026: a well-prepared seed round takes three to four months of active fundraising with proof, warm intros, and a clean data room. Without those, it stretches to eight or nine months and often never closes. Carta data shows the median seed to Series A interval is now 616 days, and only 15.4% of the Q1 2022 seed cohort graduated to Series A within two years. Here is what actually drives the timeline and how to compress it without cutting corners.