With all the contact information available if you really want to know something like this then why not fire off a mail. My perception is that the guys that get funded are usually just decent guys in the most part, sure they wouldn't mind if the information isn't too obtrusive.
1. How long it took companies to exit.
2. Financing raised (also against age of the company, so average individual rounds raised and average time between rounds).
3. Running expenses (perhaps broken down: legal, hardware, people, marketing/ads, etc.)
4. Revenue.
5. Userbase growth.
Asking a lot, but would be great information to have. :)