Wayport about broadband roaming for your business traveling clients.
TW Cable, Comcast and Charter about reselling their fiber and/or broadband. )I forgot to mention Bright House, too.
Hughes Net for wholesale satellite broadband. Wild Blue depends too much on its distributors (and is happy to have AT&T selling the heck out of it for them). But HughesNet seems simpler to deal with.
If any of these vendors interest you, please contact me about joining the program.