4) Does this company have a clear and important mission?
Without this, I usually get bored. More importantly, companies that don’t have this usually have a hard time recruiting enough great people to work with them, and thus struggle to become very large.
Says the man whose first big exit was Loopt, a drain-circling "Grindr for flip-phones" that only got acqui-hired because a Sequoia Capital board member who'd invested in Loopt pulled strings to get Green Dot to buy it and cover his investment. Harsh, I know, but hardly inaccurate: