US Grants are available for a number of organizations. We've provided a list of agencies you may find useful. 

U.S. Fire Administration Grants and Funding
Bureau of Justice Assistance
Office of Justice Department Programs
Grants.gov
Florida Department of Law Enforcement Grant Information
Grant Writing Tools for Non-Profit Organizations
Government to Government Web Portal
Catalog of Federal Domestic Assistance
Cops Office: Grants and Resources for Community Policing
Department of Homeland Security Grants
National Criminal Justice Reference Service