I don't know specifically about tech companies but the hedge fund I work for will lend and match up to very large amounts of money that you put into the fund.

I don't know specifically about tech companies but the hedge fund I work for will lend and match up to very large amounts of money that you put into the fund. It really helps to motivate you when you realize that most of your net worth is tied up in the fund:) Stock options to hot pre IPO companies like Facebook, twitter, etc are very similar. It's hard to leave before all your options vest( and they never do as you always get a new grant each year) as it's always in the back of your mind that the big IPO is just around the corner.