Contrary to popular belief, grants of cash for business are virtually nonexistent. There are rare instances where a cash grant has been given for some highly specialized type of business or for some unusual situation, but for the great majority of business situations, there are no cash grants. There are many government grants designed to assist business, but these usually don't go directly to the business. Instead, they go to agencies and organizations that perform some service for business or benefit business in some way. The Small Business Development Centers throughout the United States operate partly on a grant from the federal government.
The books and late-night television infomercials that tout government grants for business are usually exercises in cleverly misleading entrepreneurship. Read the fine print carefully and buyer beware.