Yes there is.
When you are on store.filemaker.com, once you have selected your Country and then they number/type of licences, at the top right of the page is a link:
"Go to Education & Non-Profit"
Which has discounted rates applied. Needless to say there are certain requirements that need to be met to qualify for the discount programme.
Thanks Mark. I see that they offer it for $197. I will pass that on to the non-profit.