People who you think are about to get funded, or have JUST (like in the last 1-2 months) taken on a series A round.

Edit: My reasoning for saying this is that these are the companies where great positions will be opening up and created very shortly. Also given that they've taken on funding, or are about to close, they've been put through their paces by the VC's, so you can have some confidence that they know what they're doing (This is also why i said Series A, not seed...seed is a real gamble)