For private grants, you may want to check the Foundation Center's Foundation Grants for Individuals Online. It's a subscription based website ($9.95 per month) but their opening blurb only says that the database is ideal for "students, ...
When Hannah Davis traveled to China to teach English, she noticed how Chinese workers and farmers were often sporting olive green army-style shoes. Those shoes served as her inspiration to create her own social enterprise, Bangs Shoes.
Business Grant Application Process | Personal Government Grants