Volunteer support and pledge capability?

Hi,

I am setting up a national celebration day for UK forest schools October 12th this year. I need to find a way for volunteers/supporters to pledge that their school want to get involved and what they are going to do for the celebrations. ideally I want to be able to count the number of schools involved and what county they are in. Ideally give them an opportunity to say what school they are from with a link to their school page. I have yet to find a plugin that is for pledge? Any assistance would be greatly appreciated.