- AXIL
- B&T USA
- B5 Systems
- Backup Tactical
- Badger Ordnance
- Ballistic Advantage
- Barnaul
- Barnes
- Bastion
- Battle Arms Development
- Bear Creek Arsenal "BCA"
- Belom
- Benelli
- Benjamin Sheridan
- Beretta
- Bergara
- Berger Bullets
- Bersa
- Bianchi
- Billet Rifle Systems
- Birchwood Casey
- Black Rain Ordnance
- Blackhawk
- BlackPoint Tactical
- Blue Force Gear
- BOG
- Bond Arms
- Bootleg
- Boresnake
- Bravo Company
- Bravo Concealment
- BreakFree
- Breakthrough Clean Technologies
- Brouwer
- Browning
- BSA Optics
- Bulldog Cases
- Bullets 1st
- Burn Proof Gear
- Burris Optics
- Bushmaster
- Bushnell
- Butler Creek
- Byrna
- C&H Precision
- C10 Era
- CAA MCK
- Caldwell
- Caliber Gourmet
- Camillus