- Hotel Vila, Miami
- Houchin Blood Bank
- Houghton International
- Houlton Regional Hospital
- House of Manall
- House of Mercy
- Houston Apartment Association
- Houston Area Safety Council
- Houston Baptist University
- Houston Citizen Chamber of Commerce
- Houston City Personnel
- Houston County Commission
- Houston Hispanic Chamber of Commerce
- Houston Medical Center
- Houston Methodist Baytown Hospital
- Houston Methodist Hospital
- Houston Methodist Hospital West
- Houston Methodist Sugar Land Hospital
- Houston Methodist The Woodlands Hospital
- Houston Methodist Willowbrook Hospital
- Houston Northwest Medical Center
- Houston West Chamber of Commerce
- Houston Young Lawyers Association
- Howard Community College
- Howard County Medical Center
- Howard High School
- Howard Johnson Hotel, Miami
- Howard Johnson Plaza Hotel, Hialeah Gardens
- Howard Johnson Resort, Key Largo
- Howard Memorial Hospital
- Howard Memorial Hospital (HOMH)
- Howard University
- Howard University Hospital
- Howard University School of Business
- Howard University, Physicians Assistant Department
- Howard Wershbale and Company
- Howell Consulting Group, L.C.
- HP Hood LLC
- HPSInet
- HR Northwest
- HRA Research, Inc.
- HREngineer
- HRSA - Office of Performance Review
- HRSA Team
- HSC Pediatric Center
- HSHS Good Shepherd Hospital
- HSHS Sacred Heart Hospital
- HSHS St. Anthony's Memorial Hospital
- HSHS St. Francis Hospital
- HSHS St. John's Hospital