Organizers
- Baseball Forever
- Baseball Instructional Showcases, Inc
- Baseball Players Association
- Baseball Tourney Inc
- Baseball Youth
- Baseball365
- BASEcamp at Bachman Academy
- BaseCamp Events LLC
- Baseline Youth Sports
- Bases Loaded West Coast
- Bashford Tennis Center
- Basis Independent Bellevue
- BASIS Independent Brooklyn
- BASIS Independent Fremont
- BASIS Independent Manhattan
- Basis Independent Mclean
- BASIS Independent Silicon Valley
- BASIS Independent Summer - Brooklyn
- BASIS Independent Summer - Silicon Valley
- BASIS PRECOTT
- Basketball Bound, Inc.
- Basketball Stars of America AAU
- Bass Pro Outdoor Fitness Festival
- Batavia Youth Baseball
- Bates-Jensen Wound Reach Foundation
- Bath Revitalization Group
- Bath Steeplechase 8k
- Bathurst Wallabies Triathlon Club
- Batista School of Art
- Bats
- Batten Kill Valley Runners
- Battle Lake
- Battle of the Brave
- Battle to Breathe 5k
- Battlefrog
- Battleground Golf Course
- Battlement Mesa Golf Club
- BattleRush
- Bauer Hockey Training Center Inc.
- Bauerle Bulldog Swim Camps
- Baxley-Appling County Chamber of Commerce
- BaxterSports Camp
- Bay Area Tennis Club
- Bay Area Alliance for Youth & Families
- Bay Area Baseball
- Bay Area Discovery Museum
- Bay Area Martial Arts
- Bay Break
- Bay City Morning Rotary
- Bay Club Courtside
