Organizers
- The Kimberly Walton Foundation
- The King of The Hill Dash
- The King's Academy
- The King's Academy Camp R.O.A.R.
- The Kings Valley Christian Camp Society
- The Kirk Goodwin Run
- The Kiva Center
- The Krista-Marie Touch of Love Charity, Inc.
- The Krusher Series
- The LA Voices
- The LAB
- The Laboratory
- The Labs
- The Labs USA
- The Lake Games
- THE LAKES AT EL SEGUNDO
- The Lakes Golf Course at Laura Walker
- The Lakeside School
- The Lamb Network
- The Lamplighter School
- The Landings at Spirit Golf Course
- The Language and Laughter Studio
- The Language Link
- The Language Link II LLC
- The Lantern Run
- The Las Vegas Chapter of Speedway Children's Charities
- The Lauren Beam Foundation
- The Leadershop
- The League Camping & Therapeutic Recreation
- The Learnatory
- The Learning Academy
- The Learning Center at Park Hill
- The Learning Center at The Home Course
- The Learning Connection
- The Learning Post
- The Learning Village
- The Leavitt XC Team Boosters
- The Ledges Golf Club
- The LeeShore Center
- The Legacy Club at Alaqua Lakes
- The Legends of Massillon
- The Leukemia & Lymphoma Society
- The Levi Circle
- The Libertyville Club
- The Line Experience
- The Lineup
- The Link
- The Link of Cullman County
- The Links At Carillon
- The Links at Challedon
