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, ...
Social enterprise, HandiConnect, wins the Audacious-Business Idea competition’s Doing Good category. The company is spearheaded by University of Otago entrepreneurship master’s student Nguyen Cam Van.
Business Grant Application Process | Personal Government Grants