| Houston Methodist Baytown Hospital TX | Healthcare & Social Assistance | 0 | - | F |
| Houston Methodist Hospital - Texas Medical Center TX | Healthcare & Social Assistance | 0 | - | F |
| Houston Methodist Hospital Sugarland TX | Healthcare & Social Assistance | 0 | - | F |
| Houston Methodist Hospital Willowbrook TX | Healthcare & Social Assistance | 0 | - | F |
| Houston Methodist Primary Care Group TX | Healthcare & Social Assistance | 0 | - | C |
| Houston Methodist Specialty Physicians TX | Professional & Technical Services | 3 | $282,006 | - |
| Houston Methodist St Catherine Continuing Care Hospital TX | Healthcare & Social Assistance | 0 | - | F |
| Houston Methodist St. John Hospital (Clear Lake) TX | Healthcare & Social Assistance | 0 | - | F |
| Houston Methodist The Woodlands TX | Healthcare & Social Assistance | 0 | - | F |
| Houston Mooring Co Inc TX | Transportation & Warehousing | 0 | - | F |
| Houston NFL Holdings, L.P. TX | Arts & Entertainment | 0 | - | - |
| Houston NH LLC TX | Healthcare & Social Assistance | 0 | - | F |
| Houston Production Services Inc. TX | Arts & Entertainment | 0 | - | F |
| Houston Refining LP (2025) TX | - | 0 | - | - |
| Houston Regional Sports Network, L.P. TX | - | 0 | - | - |
| Houston Terminals LLC TX | Retail Trade | 0 | - | B |
| Houston Zoo, Inc. TX | Arts & Entertainment | 0 | - | B |
| Houston-Galveston Area Council TX | Public Administration | 1 | $56,722 | - |
| Houweling Camarillo, Inc. CA | - | 0 | - | - |
| Houweling Nurseries Oxnard Inc. CA | - | 0 | - | - |
| Houzz Inc. TN | - | 0 | - | - |
| Houzz, INC. CA | Professional & Technical Services | 9 | $161,628 | - |
| HOV Services, Inc. NH | - | 0 | - | - |
| Hovione LLC NJ | Manufacturing | 1 | $66,955 | D |
| Hovis Auto Supply PA | Retail Trade | 0 | - | C |
| How & How, Inc. CA | Professional & Technical Services | 1 | $240,000 | - |
| Howard Bank MD | - | 0 | - | - |
| Howard Beach Fitness Center dba Limitless Fitness NY | - | 0 | - | - |
| Howard Companies IN | Construction | 0 | - | D |
| Howard County MD | Public Administration | 0 | - | F |
| Howard County Government IN | Public Administration | 0 | - | A |
| Howard Hughes Corporation and Seaport Hospitality LLC (8 Locations) NY | - | 0 | - | - |
| Howard Hughes Management CO, LLC TX | Real Estate | 2 | $139,863 | - |
| Howard Hughes Medical Institute MD | Professional & Technical Services | 80 | $114,669 | - |
| Howard Industries Inc MS | Transportation & Warehousing | 0 | - | C |
| Howard Logistics CO | Transportation & Warehousing | 0 | - | F |
| Howard Lumber and Hardware GA | Retail Trade | 0 | - | A |
| Howard Miller MI | Manufacturing | 0 | - | F |
| Howard Miller NC | - | 0 | - | - |
| Howard Prep formerly Howard Training Center CA | - | 0 | - | - |
| Howard Realty Partners, Inc. CA | Real Estate | 1 | $146,640 | - |
| Howard Regional Specialty Care, LLC dba Howard Regional Health System-West Campus Specialty Hospital dba Community Howard Specialty Hospital and Replay Physical Therapy IN | - | 0 | - | - |
| Howard Roofing Company, Inc. CA | Construction | 0 | - | F |
| Howard Sheppard LLC GA | Transportation & Warehousing | 0 | - | A |
| Howard Ternes Packaging MI | - | 0 | - | - |
| Howard University DC | Educational Services | 16 | $88,988 | - |
| Howard Zimmerman Architects, P.C. NY | - | 0 | - | - |
| Howco TX | - | 0 | - | - |
| Howden OH | Manufacturing | 0 | - | B |
| Howdy Honda TX | Retail Trade | 0 | - | C |
