| GRT Electronics, LLC | North Carolina |
| GrubMarket | California |
| Gruntwork, Inc. | Arizona |
| Grupdev, LLC | |
| Grupo Ferrer Firma Publicitaria | |
| Grupo GIGA | Texas |
| Grupp Digital, LLC | Wyoming |
| Grupta Programming | California |
| GruupMeet, Inc. | |
| Gryphon Bio | |
| Gryphon Content Management System | Michigan |
| Gryphon Media Group, Inc. | Ohio |
| Gryphon Networks Corporation | Massachusetts |
| GRZ Software, LLC | California |
| GS Futures | |
| GS Marketing Group, Inc. | Wisconsin |
| GS Yuasa Lithium Power | |
| GSATi | Texas |
| GSC | Texas |
| GSD Venture Studios | California |
| gSEMI | California |
| GSF-Soft | Florida |
| GSG Computers, Inc. | Tennessee |
| GSG Greative Agency | California |
| GSI Corporation | Maryland |
| GSI Technology, Inc. | California |
| GSIX.team | Colorado |
| GSM | Georgia |
| GSM Marketing, LLC | |
| GSM Systems | Florida |
| GSNO Therapeutics, Inc. | |
| Gsolutionz | California |
| GSP Services, Inc. | Maryland |
| gSpin Technologies | |
| GSquared Design Group, LLC | Washington |
| GSR Ventures | California |
| GSS Infotech CT, Inc. | New Jersey |
| GSS, LLC | |
| GSSC | Minnesota |
| GSTV | |
| GT Apeiron, LLC | |
| GT Biopharma, Inc. | |
| GT Medical Technologies, Inc. | Arizona |
| GT Metabolic Solutions, Inc. | |
| GT Molecular | Colorado |
| GT Software, Inc. | Georgia |
| GTB Technologies, Inc. | California |
| GTC Eletronics | California |
| GTC Technical Support | Washington |
| GTCO Cal Comp | Arizona |