From the top of my head...
Small / new sponsors:
QTbucks (mine)
Prissy Pays (brand new sponsor by Kate, from Katesplayground fame!)
Cheesefrog Flow
Lemonade Cash
OT Cash
Akutenshicash
And don't forget the well established sponsors:
Phil-Flash-Cash
Spunky Cash
Solar Cash
Pancho Dog
Mayors Money