- H&H Medical Corporation
- H6 Energy, LLC
- Harbor Enterprises LLC
- Harcon LLC
- Hardy and Associates / Architect, PLLC
- Hardy . Heck . Moore, Inc.
- Harris Whitesell Consulting LLC
- Harry Miller Co.,LLC
- Haskell New York Inc.
- Hatteras Resource Group, Inc.
- Healthcare Business Reps, LLC
- HealthITq, Inc.
- Helgen Industries, Inc.
- Help Around the Office LLC
- Heritage Interpreting LLC
- HexaCorp LLC
- HiCor Learning Systems LLC
- High Bridge Solutions, LLC
- High Sierra Consulting, LLC
- Highland Point, Inc
- Highland Technolgy Services, Inc.
- Hinge Digital LLC
- Hoffmann Murtaugh Advertising Inc
- Horizon GeoSpatial LLC
- Horizon Structures, LLC
- Horst Manufacturing Company, Inc.
- Hosted Records Inc.
- Housen Homecare, Inc.
- Howarth Granite Holdings LLC
- HR Office Solutions Inc
- HT Berry Co., Inc.
- HUOBAN, LLC
- HydroCore Concepts LLC