Organizers
- Haven House Hospice
- Haven House Hustle
- Haven Humane Society
- Haven on the Rock
- Havens Chapel Ball Association
- Haverford Township Recreation Department
- Havre de Grace Rotary
- Havre de Grace Warriors Jr. Wrestling
- Havre de Grace Youth Sailing Program
- Hawaii Bicycling League
- Hawaii Chapter AUSA
- Hawaii Cycling Club
- Hawaii Lifeguard Water Safety Fund
- Hawai'i Preparatory Academy
- Hawaii State Tours
- Hawk Circle Wilderness Education
- Hawk Hoops
- Hawk Rowing Academy
- Hawkes Bay Mountain Bike Club
- Hawkeye Tennis and Recreation Center
- Hawks Bullpen
- Hawks Softball Camp
- Hawks Softball Inc.
- Haworth Country Club
- HAYDEN TRIATHLON
- Haynes Landing Swim Team
- Hays Band Boosters
- Hays High Indian Football Camps
- Haystack Golf Course
- Hayward United Soccer Club
- Haywood County Chamber of Commerce
- Hazardville Memorial School PTO
- Hazelwood (City of) Parks and Recreation
- Hazelwood Christian Church
- Hazleton Street Hockey League
- Hazleton YMCA/YWCA
- HCM Foundation
- HD Events
- HDSA / South Florida
- Head Over Heels Athletic Arts
- Head Royce School
- Headfirst Honor Roll Camps
- HeadFirst Performance
- Headfirst Performance
- Headford8k Road Race
- Head-Royce School
- HEADstrong Foundation
- Headwaters Youth Soccer Association – United
- Healdsburg Prune Packers Baseball Club, Inc.
- Healing Gaits
