The two primary players here are your low leptin and your high cortisol. (drrosedale.tenderapp.com)
But even in areas like you mentioned that have a few primary players, just knowing and being friends with the other 3 - 4 investors in town can have some benefits. (biggerpockets.com)
TransUnion, Experian, and Equifax are the three primary players in the credit reporting industry. (entrepreneur.com)