| Sema Technologies, Inc. | Maryland |
| Semantic Advantage, Inc. | |
| Semantic AI, Inc. | California |
| Semantic Arts | Colorado |
| Semantic Designs | Texas |
| Semantic Studios | Michigan |
| SemanticMD | Texas |
| Semaphore Mobile | Texas |
| Semasio | |
| Sematext Group, Inc. | New York |
| SemaTree, Inc. | Massachusetts |
| Sembly AI | New York |
| SembraCare, Inc. | North Carolina |
| SEMbyotic | |
| Semclix, LLC | |
| Semgeeks Digital Agency | |
| SEMGenius, LLC | |
| Semgrep, Inc. | |
| SEMI | California |
| Semi Source, Inc. | Massachusetts |
| Semichem, Inc. | Kansas |
| Semico Research Corporation | Arizona |
| SEMICOA | California |
| Semicolon, LLC | California |
| SEMICON West | California |
| Semiconductor Circuits, Inc. | New Hampshire |
| Semiconductor Components Industries, LLC | Arizona |
| Semiconductor Digest | Massachusetts |
| Semiconductor Equipment Corporation | California |
| Semiconductor Industry Association | District of Columbia |
| Semiconductor Logistics Corporation | California |
| Semiconductor Online | Pennsylvania |
| Semiconductor Research Corporation | |
| Semiconductor Spares Store | New Mexico |
| SemiconSoft, Inc. | Massachusetts |
| Semicore Equipment, Inc. | California |
| Semide Technologies, LLC | Massachusetts |
| SemiDice | California |
| SemiDot Infotech | Colorado |
| Semifive, Inc. | |
| Semify, LLC | |
| Seminole State College | Oklahoma |
| Seminole State College of Florida | Florida |
| Seminole Technology Business Incubation Center | Florida |
| Semitronics Corporation | New York |
| Semler Scientific, Inc. | California |
| SEMpdx | |
| Semperis | New York |
| SemperVirens Ventures, LLC | |
| Sempre Health, Inc. | California |