| Gray Dog Design | North Dakota |
| Gray Link Technologies | Alabama |
| Gray Matter Analytics | Illinois |
| Gray Matter Robotics | California |
| Gray Owl Works, LLC | |
| Gray Step Software, Inc. | |
| Gray Street Solutions, LLC | |
| Gray Swan Software, LLC | Missouri |
| Gray's Web Design | Oregon |
| Graydient AI | |
| Graydient Creative | Wisconsin |
| GrayHair Software | New Jersey |
| Grayhawk Capital | Arizona |
| Graylog | Texas |
| Graylog, Inc. | |
| GrayMatter | |
| GrayMatter Software Corporation | Washington |
| Grayphite | |
| Grays Harbor College | Washington |
| Grayson College | Texas |
| Grayson Computer Services, Inc. | New York |
| GrayTech Software, Inc. | Illinois |
| Greaney Consulting, LLC | Connecticut |
| Great Agencies | California |
| Great Basin College | Nevada |
| Great Basin Scientific | |
| Great Bird Enterprises | Utah |
| Great Buy Web Hosting | Florida |
| Great Falls College Montana State University | Montana |
| Great Game Products, Inc. | Maryland |
| Great Hill Corporation | Pennsylvania |
| Great Hill Partners | Massachusetts |
| Great Jakes Marketing Company | New York |
| Great Lakes Christian College | Michigan |
| Great Lakes Computer Corporation | Ohio |
| Great Lakes Digital Partners | |
| Great Lakes Electronics Corporation | Michigan |
| Great Lakes NeuroTechnologies | |
| Great Lakes Reality Labs | Michigan |
| Great Leap Studios | |
| Great Oaks Venture Capital | New York |
| Great Plains Communications | Nebraska |
| Great Question, Inc. | California |
| Great River Electronics | Minnesota |
| Great River Hydro, LLC | Massachusetts |
| Great River Technology | New Mexico |
| Great Rock Ventures, LLC | New York |
| Great Scott Gadgets | |
| Great Scott! Computer Services | North Carolina |
| Great Smokies Internet | Tennessee |