Colorado beer maker MillerCoors and Randolph alcohol distributor Burke Distributing Corporation will be advertising and promoting the race ahead of the event. The two companies join a roster of more than 30 sponsors including Exonn Mobil, tire maker Firestone, and Japanese tech company Konica Minolta. Boston technology company LogMeIn — whose Fort Point headquarters overlook the Indy course — is the biggest sponsor signed on so far.