You stand a greater chance of getting a government-guaranteed loan through the Small Business Administration http://www.sba.gov/financing than a government grant. Read the SBA Financing page to learn about criteria needed for borrowing

It is hard to find grants to start a business. Unlike the myths that some perpetuate, federal government and even private foundations hardly give grant money for a for-profit business. And yes, grants mean PAPERWORK – lots and lots of it, that is why a cottage industry of grant writers was born.

Nonetheless, you can go to the Catalog of Federal Domestic Help (CFDA) http://www.cfda.gov and Grants.gov http://www.grants.gov – these are two sites made by the federal government to provide transparency and information on grants. Browse through the listings and see if you can find any grant that would support a for-profit venture.

Even SBA does NOT give out grants. From the SBA website http://www.sba.gov/mostrequesteditems/CON_FAQ2.html

"The U.S. Small Business Administration does not offer grants to start or expand small businesses, although it does offer a wide variety of loan programs. (See http://www.sba.gov/financing for more information) While SBA does offer some grant programs, these are generally designed to expand and enhance organizations that provide small business management, technical, or financial help. These grants generally support non-profit organizations, intermediary lending institutions, and state and local governments."

Here is a listing of federal grants for small businesses. See if there is any available for individuals for starting a business — THERE'S NONE.
http://12.46.245.173/pls/portal30/CATALOG.BROWSE_BENEF_RPT.show

Most of the federal grants are given to specific target groups with specific requirements (e.g. minority business owners involved in transportation related contracts emanating from DOT – Grant#20.905 Disadvantaged Business Enterprises Small Term Lending Program

Grants are also often given to non profit groups or organizations involved in training or other similar activities (grant 59.043 Women's Business Ownership Help that are given to those who will make women's business center that will train women entrepreneurs

I suggest you read the following books to get thoughts of how to finance your business:

Financing Your Small Business http://www.amazon.com/exec/obidos/ASIN/1572484500/powerhomebizguid
Small Business Financing: How and Where To Get It http://www.amazon.com/exec/obidos/ASIN/0808007386/powerhomebizguid
Financing the Small Business: A Complete Guide to Obtaining Bank Loans and All Other Types of Financing http://www.amazon.com/exec/obidos/ASIN/1580626815/powerhomebizguid
The SBA Loan Book http://www.amazon.com/exec/obidos/ASIN/158062202X/powerhomebizguid
Angel Capital : How to Raise Early-Stage Private Equity Financing http://www.amazon.com/exec/obidos/ASIN/0471690635/powerhomebizguid
Financing Your Small Business (Barron's Business Library Series) http://www.amazon.com/exec/obidos/ASIN/0764124897/powerhomebizguid

Regardless of what you've heard, there is NO such thing as government grant money to start your own busines!! They're all loans, which have to be repaid (unlike a grant). sba.gov will give you a better thought of what you have to do to apply for a loan but it's no different then going to your local bank with a business plot really…. maybe interest, but you'll have to check how much difference it's really gonna make. Government is gonna be ALOT more paperwork.