The best source for federal grant programs is -- you can sign up for automatic updates, and the site also includes useful information regarding the federal grants submission process.

The Arizona Commerce Authority manages several Arizona Programs. Each program has its own eligibility criteria, application process, review and award process, and funding. 

Research Grants for Small Businesses: If your small business is engaged in scientific research and development (R&D), you may qualify for federal grants under the Small Business Innovation Research (SBIR) and the Small Business Technology Transfer (STTR) programs. (19)

Additional Information:
Arizona Department of Administration - Arizona Office of Grants and Federal Resources (GFR): Helps state agencies, local governments, and non-profit organizations, find, win and manage grants. Strives to be the premier resource of training and technical assistance for the Arizona grants community.

Arizona Commerce Authority, Arizona Entrepreneur's Edge, Chapter 3: Financing your Business 

NOTE: Most small businesses do not qualify for government grants. We encourage you to learn about grants and grant-related scams by clicking on the links below. 

Microloan programs provide small loans ranging from less than $500 up to $50,000. See Loans and Loan Programs page for more information.