Pro Deals have been around as long as rock apes have needed sponsors. Apparently back in the day, poor climbers would simply write letters to companies "begging" for gear and since word of mouth is the best commercial, companies often sent out samples of products looking for input.
3point5 has pro deals on
these brands
promotive has pro deals available to
Mil, LEO, FF, and AAI guides
I'm a Mountain Hardwear whore (IMO, their gear is high quality and cheaper than TNF and Arc'teryx) so here's their
pro deal too. I also am a huge fan of La Sportiva and they are a part of
Outdoor Prolink.
Ahh...so much gear and only 26 pay periods each year.