American Pyrotechnics Association
A trade association for the fireworks industry. Represents man large and small fireworks companies on the national level.
Pyrotechnics Guild International
The PGI is an excellent resource for the hobbyist pyrotechnician. The PGI has a weeklong annual convention every year in August. Their web site has many links to fireworks clubs throughout the United States.
National Fireworks Association
The National Fireworks Association (and its over 1200 members) represent the interests of fireworks manufacturers, importers, and sellers. In addition, the NFA supports fireworks safety.