- Havasu Regional Medical Center
- Haworth SMED
- HDS Marketing
- Heery International, INC
- Hilton Phoenix Airport
- Hilton Tucson
- Holiday Inn Express and Suites Phoenix Downtown - Ballpark
- Holiday Inn Phoenix-West
- Holman's
- Home Assist Health
- Homestore
- Homewood Suites Phoenix
- Homewood Suites, Tucson International Airport)
- Honeywell
- HonorHealth Deer Valley Medical Center
- HonorHealth John C. Lincoln Medical Center North Mountain
- HonorHealth Scottsdale Healthcare Osborn Medical Center
- HonorHealth Scottsdale Shea Medical Center
- HonorHealth Scottsdale Thompson Peak Hospital
- Hope Heart Heal
- Horizon Home Care
- HOSA at Liberty High School
- Hospice of Arizona
- Hunter Contacting Co.
- Hyatt Regency Phoenix
- J.P. Morgan Chase and Co.
- Jefferson Elementary School
- John C. Lincoln North Mountain Hospital
- Karsten Manufacturing, Inc.
- Kingman Regional Medical Center
- Kiwanis Club
- Knight Transportation
- La Paz Regional Hospital
- Laureate Homes
- Leisure World Arizona
- Lincoln Family Downtown YMCA
- Little Colorado Medical Center
- Living Balance Yoga with Jen
- Local Tucson Boy Scout Troop
- Long Reality Co.
- LSA-SQL Laboratory Sciences of AZ
- Marcos de Niza HOSA
- Maricopa County
- Maricopa County Department of Public Health
- Maricopa Integrated Health System
- Maricopa Medical Center
- Marriott, Tucson
- Mayo Clinic Hospital
- Meggitt
- Mercy Gilbert Medical Center