Do you have contact information for any of the people using your product? Admittedly I am at a university, not a regular business, but I don't think I could get

Do you have contact information for any of the people using your product? Admittedly I am at a university, not a regular business, but I don't think I could get a donation past the procurement office. If you offer to sell a support package you might do much better. A support contract is something that could get past most purchasing departments.