Alphabetical company index for letter/character "H", page 25 of 42
- Highlands School District
- Highline Medical Center
- Highline School District
- Highmark Blue Cross Blue Shield
- Highmark Blue Cross Blue Shield Delaware
- Highmark Blue Cross Blue Shield West Virginia
- Highmark Blue Shield
- Highmark Health
- Highmore-Harrold 34-2 School District
- HighPeak Energy
- Highpower International Inc.
- Highveld Steel & Vanadium Corp.
- Highway Holdings Ltd.
- Highwood K-12 School District
- Highwoods Properties Inc.
- Higley Unified School District
- Higuera Hardwoods
- Hikma
- Hiland Holdings GP LP
- Hiland Partners L.P. Un
- Hilander Foods
- Hilb Rogal & Hobbs Co.
- Hilbers
- Hilbert College
- Hilbert School District
- Hill + Knowlton Strategies
- Hill City Public School District
- Hill City School District 51-2
- Hill Country Memorial Hospital
- Hill County
- Hill County, TX
- Hill Holliday
- Hill Hospital of Sumter County
- Hill International Inc.
- Hill Regional Hospital
- Hill-Rom Holdings Inc.
- Hillcrest Baptist Medical Center
- Hillcrest Hospital
- Hillcrest Hospital Claremore
- Hillcrest Hospital Cushing