| Historic Campus Architecture Project | Academic & Science |
| Harvard College in Asia Program | Academic & Science |
| Hunter College AANAPISI Project | Academic & Science |
| Healthcare Career Advancement Program | Business |
| Health Careers Advancement Project | Business |
| Honourable Company of Air Pilots | Business |
| Harlem Community and Academic Partnership | Community |
| Healthy Communities Access Partners | Community |
| Healthy Communities Access Program | Community |
| Honolulu Community Action Program | Community |
| History Center Affiliates Program | Community |
| Housing Communities Assistance Program | Community |
| Harrisonburg Conservation Assistance Program | Community |
| Host Credentials Authorization Protocol | Computing |
| Hitachi Content Archiving Platform | Computing |
| Harmonized Cognitive Assessment Protocol | General |
| Handy Citizen Agreeable Person | General |
| Hitachi Content Archive Platform | General |
| Home Care Assistance Program | General |
| Halifax Coalition Against Poverty | General |
| Healthy Cognitive Aging Project | General |
| Human Cathelicidin Antimicrobial Protein | General |
| Harassment Code and Accountability Procedures | General |
| Health Care Alliance Pool | Governmental |
| Health Care Administration and Policy | Medical |
| Hospital care assurance program | Medical |
| Health Care Assistance Program | Medical |
| Hospital Care Assistance Program | Medical |
| Health care associated pneumonia | Medical |
| Health Care Assurance Program | Medical |
| Hospital Care Assurance Plan | Medical |
| Harris County Aquatics Program | Regional |
| Harris County Aquatic Program | Regional |
| Hockey Club Ambri Piotta | Sports |
