| Houston Community College's | Academic & Science |
| Heat Curing of Concrete | Academic & Science |
| Hudson (ny) | Airport Code |
| Head Construction Contract | Business |
| Hindustan Construction Company | Business |
| Health Career Connection | Business |
| Hispanic Contractors of Colorado | Business |
| Highly Commended Certificate | Business |
| Houston Casualty Company | Business |
| H C C Insured Holdings, Inc. | Business |
| Healthcare Coalition Cooperative | Business |
| Human Capital Corporation | Business |
| Hierarchial Condition Category | Business |
| Heat of Carbon Combustion | Chemistry |
| Hernando Computer Club | Community |
| Houston Community | Community |
| Harpeth Community Church | Community |
| Highland Community College | Community |
| Haywood Community College | Community |
| Habits Culture And Community | Community |
| Hopkinsville Community College | Community |
| Halifax Community College | Community |
| Henderson Community College | Community |
| Headquarters Committee on Contracts | Community |
| Home Correspondence Course | Community |
| Hobby Computer Club | Community |
| Hospital Community Cooperative | Community |
| Healthy Community Coalition | Community |
| Hinds Community College | Community |
| Heartland Community College | Community |
| Hutchinson Community College | Community |
| Holland Computing Center | Computing |
| Hardware Commissioning Coordination | Computing |
| Hosting Control Center | Computing |
| Host Communications Complex | Computing |
| Hub Control Center | Computing |
| Homebrew Computer Club | Computing |
| Hybrid Cloud Computing | Computing |
| Heavy Computing Consortium | Computing |
| Human-Centered Computing | Computing |
| Holy Computer Crap | Computing |
| Heterogeneous Compute Compiler | Computing |
| Holy Child College | Educational Institute |
| Harford Community College | Educational Institute |
| Coleman College | Educational Institute |
| Hillsborough Community College | Educational Institute |
| Houston Community College | Educational Institute |
| Highline Community College | Educational Institute |
| Holyoke Community College | Educational Institute |
| Honolulu Community College | Educational Institute |
| Holy Cross College | Educational Institute |
| Hibbing Community College | Educational Institute |
| Howard Community College | Educational Institute |
| Housatonic Community College | Educational Institute |
| Hagerstown Community College | Educational Institute |
| Hybrid Columnar Compression | General |
| Hard Clear Coating | General |
| Heirarchical Condition Category | General |
| Hierarchical Condition Category | General |
| Hemispherical Combustion Chamber | General |
| Hyundai Certified Center | General |
| Hoosier Corvette Club | General |
| Heartland Corvette Club | General |
| Hydrodynamic Cooled Clutch | General |
| Historic Car Club | General |
| Heartland Chevelle Club | General |
| Horseless Carriage Club | General |
| Highland Car Club | General |
| Halla Climate Control | General |
| Hybrid Car Center | General |
| Heritage Car Club | General |
| Honda Civic Club | General |
| Honda Club Community | General |
| Holland Classic Cars | General |
| Happy Creator Coin | General |
| HUMINT Contingency Cell | General |
| Hybrid Communication Center | General |
| Hello Chavy Crank | General |
| Hybu Cig Cymru | General |
| Hurley Convergence Center | General |
| Habitat Control Centre | General |
| Hawaii Convention Center | General |
| Healthcare Construction Certificate | General |
| Hair Cleansing Cream | General |
| Hill Country Conservancy | General |
| Hamilton Clermont Cooperative | General |
| Happy Costuming Cats | General |
| Holland Car Company | General |
| Hyundai Coupe Club | General |
| Hill Climb Championship | General |
| Hemmings Classic Car | General |
| Honda City Club | General |
| Harvest Compassion Center | General |
| Human Capital Concepts | General |
| Honiara City Constabulary | General |
| Honor Courage Commitment | General |
| Hard Core Comedy | General |
| Hierarchical Coexisting Conditions | General |
| Honor Courage and Commitment | General |
| Coin com | General |
| Hood Canal Communications | General |
| Heat Control Counter | General |
| Hierarchical Condition Categories | General |
| Highly Capable Cohort | General |
| Horn Clause Completion | Governmental |
| Human Centered Capitalism | Governmental |
| Hampshire County Council | Governmental |
| hepatocellular carcinomas | Medical |
| Health Care Collaborative | Medical |
| HepatoCellular Carcinoma | Medical |
| Healthcare Center For Children | Medical |
| Harvard Cancer Center | Medical |
| Heathcare Commission | Medical |
| History of Chief Complaint | Medical |
| Hospital Computer Centre | Medical |
| Hürthle cell carcinoma | Medical |
| H?thle cell carcinoma | Medical |
| Hydroxycholecalciferol | Medical |
| Health Care Coalition | Medical |
| Health Care Compliance | Medical |
| Health and Counseling Center | Medical |
| Health Care Card | Medical |
| Hindustan Construction Company Limited | NSE Company Symbol |
| Housing Conservation Coordinators | Real Estate |
