Pastor Brad,

Your first step should be to find the community liaisons or community relations managers at each of the companies you'd like to target. If you can, get more information about their programs ahead of time. You may find that certain companies may have community interests in specific areas and you can use that information when making your pitch for support.

After finding out who the community relations personnel are and gaining a good idea about their interests, create a brief proposal that outlines why you need the support and how much you need. It might be a good idea to offer levels which would give the companies leeway with how much money they can give.

The most important part of this proposal will be, how the support fits with the company's community goals -- basically what benefit are they getting out of it.

Then, it's just a matter of getting meetings with the right people and making your pitch.

Good luck!