When do investors take board seats?

A board seat gives an investor formal governance power: boards hire and fire the CEO, approve budgets, financings, and a sale of the company. Lead investors in priced rounds — most commonly from the Series A onward — typically negotiate a seat as a condition of the investment.

A common post-A structure is two founders, one investor, and later an independent director. Seed rounds on SAFEs usually involve no board change at all; board observer rights (attend, no vote) are a lighter-weight alternative investors sometimes take.