Organizers
- Harrah's Ak-Chin Casino
- Harrells Christian Academy
- Harrietville Half
- Harriman Miller Green Beret Organization
- Harris County Chamber of Commerce
- Harrisburg 5k
- Harrisburg Area Tennis Association
- Harrisburg Little League
- Harrison Maine Recreation
- Harrity & Harrity LLP
- Harrogate Tri Club
- Harry Post 65 American Legion Baseball
- Harry Taylor Tennis Center
- Hartford Hurricanes
- Hartford Marathon Foundation
- HartFord Marathon Foundation
- Hartford Parks & Recreation Department
- Hartford Track Club
- Hartford United Soccer Club
- Hartland Recreation Department
- Hartselle Kiwanis Club
- Hartville Trail Races
- Hartz Physical Therapy
- HARVARD PILGRIM FINISH AT THE 50
- Harvard Swimming & Diving Fundraiser
- Harvest Bible Chapel Oakville
- Harvest Bible Chapel Sacramento
- Harvest Food & Outreach
- Harvest Hustle
- Harvest of Hope Family Services Network, Inc.
- Harvest Point/Edmundson GC
- Harvest Run: Albany, GA
- Harvest Time Bible Camp
- Harvey McIntyre Baseball Camps
- Haskell Athletics
- Haslett Community Education
- Hastings Area Swim Team
- Hatfield Lions Club
- Hatfield Township
- Hava Java
- Havasu Girls ASA Softball Inc.
- Have a Heart Humane Society
- HAVEN From Domestic & Sexual Violence
- Haven Hospice
- Haven House Hospice
- Haven House Hustle
- Haven on the Rock
- Havens Chapel Ball Association
- Haverford Township Recreation Department
- Havre de Grace Rotary
