Organizers
- Jefferson Barracks HERO Run/Walk
- Jefferson County Parks and Recreation Commission
- Jefferson County Regional Fire School
- Jefferson Davis Community College Foundation
- Jefferson H. Ridgdill Memorial Fund
- Jefferson Performing Arts Society
- Jefferson Youth Basketball
- Jeffersontown Youth Baseball and Softball
- Jeffersonville Parks & Rec
- Jeffersonville Thunder
- Jeffrey Hirose School of Golf
- Jekyll Island Golf Club
- Jelani Girls, Inc
- Jenkins Township Little League
- Jenkintown Community Alliance
- Jenna Caira's 2017 Softball Camp featuring Team Canada Members
- Jenner1025Agency
- Jenner113APlus
- Jenner210A
- Jennie Stuart Medical Center
- Jennifer Brundage, LLC
- Jennifer Green Foundation
- Jennifer Serr
- Jennings County Scorpions
- Jenny Albert Sea Turtle Foundation
- JennyU Lacrosse, LLC
- Jensen Beach Golf Academy @ 76 Golf World
- Jensen Redondo Tennis Academy
- JERFSA
- Jerod Haase Basketball Camp
- Jerome Alston Memorial Foundation
- Jerome Souers Football Camp
- Jersey Girls Fastpitch
- Jersey Shore Beach Blast
- Jersey Shore Fastpitch & Pete Yakalis
- Jersey Shore Half Marathon
- Jersey Shore Running Club
- Jersey Shore Touring Society
- Jersey Swimming Club
- Jersey Village American Legion 5K Fun Run
- Jess Hansen Golf Academy
- Jesse Owens Runners' Club Inc.
- Jessica Palmer Kramer
- Jesup Soccer Club
- Jesus is my Superhero 5k run/walk race
- Jets Track & Field Club
- Jewish Community Center of Greater Kansas City
- Jewish Community Center of the East Bay
- Jewish Family Service of Rochester
- Jewish Federation of Madison
