His Silas, start by asking your family and close friends, ask them if they have any contacts, go around shops and offices, be clear of what you want sponsorship for, and make sure its legal, in the sense of the money will go to a particular Charity, or good cause. It has to be registered too, so what do you want to be sponsored for, and who will benefit from it, and why do you want to do it now. Good Luck.
