I never followed up, but have had some success getting sponsors for our club. I went through email and just sent out a bunch of emails to describe our club, where we fish, and what we offer the sponsor in return for their sponsorship. I found that a well worded email was generally well rec'd. I tended to go towards smaller or up and coming sponsors as most of the big companies don't deal with clubs. Also chase down local businesses that are related (marine repair, tackle shops, etc.). The companies we gained as sponsors were (Loc-R-Bar, Culprit, Hag's Tornado Baits, Dobyn's Rods, Koppers LIVETARGET, Reel Rod Cover, & Duncan Bags). Just be patient and pleasant!