Alphabetical company index for letter/character "H", page 13 of 41
- Hastings-On-Hudson Union Free School District
- Hatboro-Horsham School District
- Hatch Valley Public Schools
- Hatfield School District
- Hathaway Dinwiddie
- Hathor Exploration Limited
- Hatteras Financial Corp.
- Hattiesburg Public School District
- Hatton Eielson 7 - School District
- Hauppauge Digital Inc.
- Hauppauge Union Free School District
- Havana CUSD 126
- Havas Worldwide
- Havasu Regional Medical Center
- Haven Public Schools
- Haverford College
- Haverford Township School District
- Haverhill School District
- Haverstraw-Stony Point Central School District (North Rockland) School District
- Haverty Furniture Cos. Inc.
- Haviland School District
- Havit Advertising
- Havre Elementary School District
- Havre H S School District
- Hawaii
- Hawaii County
- Hawaii Department Of Education
- Hawaii Health Systems
- Hawaii Pacific University
- Hawaiian Airlines
- Hawaiian Electric Industries Inc.
- Hawaiian Telcom
- Hawarden Regional Healthcare
- Hawk Corp.
- Hawkins County
- Hawkins County School District
- Hawkins Inc.
- Hawkins Independent School District
- Hawks Home Elementary School District
- Hawley Independent School District