Organizers
- Foot Locker Cross Country
- Foote Corporation
- Foothill Christian School
- Foothill Club Water Polo
- Foothill Country Day School
- Foothill Horizons Summer Camp
- Foothill Leadership Academy
- Foothills Gateway, Inc.
- Foothills Gateway.org
- Foothills Montessori School
- Foothills tennis and swim club
- Footprints in the Forest
- Footprints On Our Hearts
- Footsteps Child Care, Inc.
- Footsteps Child Care, Incl
- Footsteps for Fertility Foundation
- Footsteps International
- For Glo LLC
- For Kids Sake Foundation
- For Our City Gilbert
- For the health of it, LLC.
- Forbes Running and Triathlon Club
- FORCE Cancer Charity
- Force South / Barcelona Bay Area
- Forceout Baseball Club LLC
- Ford Athletic Swim and Triathlon Club
- Ford City Renaissance Community Partnership, Inc.
- Ford Elementary School Foundation
- Ford Timing
- Fore Kicks Golf Course
- Foresight Golf
- Foresight Golf'
- Forest Academy
- Forest City Tennis Center
- Forest Floor Wilderness Programs LLC
- Forest Footsteps
- Forest Lakes Swim
- Forest Marathon
- Forest Oaks Swim & Racquet Club
- Forest Preserve District of DuPage County
- Forest Preserve District of Will County
- Forest Preserves of Cook County
- Forestmeadows Athletic Center
- Forestmeadows Parks & Athletic Center
- Forestville Half Marathon Club
- Forestville Public School
- Forever 9-The Robbie Levine Foundation
- Forever Footprints
- Forever Footprints, dba of OC Walk to Remember
- Forever Runners
