FounderDating: First Event is on Sep 9th
founderdating.com
founderdating.com
In the case of looking for people to start a company with I think I would appreciate that the people who are there have been screened by some sort of process.
Also, so many people just crash open free events (with beer!) that applying even the slightest seriousness filter could boost the event value a lot for its intended audience.
There are plenty of all-comers networking events, too -- it's not like the bay area tech startup community is either fragile, requiring gentle encouragement to finally grow, or exclusionary, starving for fresh blood.