Organizers
- B Sports Entertainment
- B Strong Ride
- B&B Theatres
- B&S EVENT MANAGEMENT
- B. A. Event Promotions
- B.E.A.S.T.
- B.I.K.E.S. Club of Snohomish County
- B.I.S.H. Foundation
- B.O.S.S. Baseball
- B/CS Regional Association of REALTORS
- Babcock Ranch Real Estate
- Babylon Village Classic 10K Dirty Sock Run
- Bachelor-Walker Tennis Academy
- BACK 2 THE TRENCHES
- Back in the Day K
- Back Mountain Little League
- Back to School Festival
- Back To The Beach Runners
- Backcourt Club of Fergus Falls, Inc.
- Backpacks and Binoculars, Inc.
- Backyard Baseball Wood Bat Classic
- Backyard Kids' Theater
- BACON Foundation INC
- BAD ASH Personal Training and Nutrition
- Bad Ass Beer Run
- Bad Axe Little League
- Bad Ben's Trail Running Site
- Bad to the Bone Endurance Sports
- Bad to the Bone Sports
- Badass Dash
- Baddlands Cycling Club
- BADGER BOYS BASKETBALL
- Badger State Games
- BadgerBOTS Robotics Education Center
- Badgerland Striders
- Badminton Alberta
- Bafidis Enterprises
- Bagnall PTA
- Bags Live
- Bahamas Roadmasters - Bahamas Half Marathon & 10K
- Bahamas Triathlon Assocation
- Bahrain Road Runners
- Baierl Family YMCa
- Bailey Creek Golf Course
- Bainbridge Half Marathon
- Baja Bike Race
- Bakas "Horses for Handicapped" Inc
- Baker Demonstration School
- Baker University Premier Soccer Camp
- Bakersfield Racquet Club
