Check creates a cool project which should change the whole world. But I doubt that large companies will be glad to cooperate. Every penny counts for them and maybe they wont easily agree to let their money go.
Check wont invent anything new in this case ‘cause large companies are already participating in charity activities. I dunno why u think that it isnt that way. After the appearance of this platform the donations from large companies will only get bigger.
I’m not sure… Why should they be interested in increase of amount of donations?