- 911 Alarm
 - Oakland - Provides nationwide alarm monitoring services. - Allstar Fire Equipment
- Hayward - Equipment, clothing and apparatus.
- Bauer SF
- Hayward - Provides sales and service for Bauer breathing air compressors, Interspiro SCBA's and General-Rosenbauer Fire Trucks.
- Firefighter Supplies
- San Francisco - Specialises in the manufacture of leather, canvas, and webbing products for firefighters and fire brigades.
- H3R, Inc.
- San Francisco - Buys, sells, recycles, and recharges halon system cylinders, portable fire extinguishers, and alternative clean agents with services offered worldwide.
- Harlick Backflow and Fireline Co.
- Cupertino - Specialists in backflow valve and fire sprinkler installation testing.
- HYT Corporation
- Concord - Specialises in fire protection engineering, consulting, and design services.
- LC Action
- San Jose - Distributor of law enforcement equipment, supplies, clothing and uniforms with online sales and a retail shop in San Jose, CA.
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