That's sort of a non-solution. Perhaps add a field that asks "which startups would you not like to share your information with?"
This way, you keep your site single-blind (to keep people from skipping using your service) and if a company happened to be in the list, the person could still use your service (just hiding his/her info from that party).
This way, you keep your site single-blind (to keep people from skipping using your service) and if a company happened to be in the list, the person could still use your service (just hiding his/her info from that party).