| Jeff Computers | Missouri |
| Jeff Fiore | Virginia |
| Jeff Heiser | |
| Jeff Hendrickson | |
| Jeff Hollett | |
| Jeff Huang | |
| Jeff Masilun | North Carolina |
| Jeff Walden | Wisconsin |
| Jefferies Financial Group, Inc. | |
| Jeffers Design | Wyoming |
| Jefferson Capital Partners Ltd | Virginia |
| Jefferson College | Missouri |
| Jefferson Community and Technical College | Kentucky |
| Jefferson Lab | |
| JEFworks Lab | Maryland |
| JEGI LEONIS | |
| Jeh Aerospace, Inc. | |
| Jeiven Pharmaceutical Consulting, Inc. | |
| Jell Tech Consulting | Wisconsin |
| Jellatech | North Carolina |
| Jellomonsters | |
| Jellyfish | Massachusetts |
| JellyFish Technologies, LLC | Utah |
| Jemi, Inc. | California |
| JemJem | California |
| Jempros.com | Massachusetts |
| JEMSU | Colorado |
| Jemully Media, LLC | |
| JenaValve | California |
| Jenesis Software | North Carolina |
| Jenestar Web Creations, LLC | Rhode Island |
| Jeninson Enterprises, LLC | Texas |
| Jenkat Games | Minnesota |
| Jenkon Enterprise | Washington |
| Jenn Wortman Vaughan | |
| Jenness Enterprises | Arizona |
| Jenni, Inc. | |
| Jennifer McAlister Graphic Design | Texas |
| Jennings Social Media & MarTech | |
| JennTel Communications, LLC | North Carolina |
| JensenIT | Illinois |
| Jenzabar, Inc. | Massachusetts |
| JEOL USA, Inc. | Massachusetts |
| Jerome Dalbert | |
| Jerome Stevens Pharmaceuticals, Inc. | |
| Jeromy Alexander | Michigan |
| Jeron Electronic Systems, Inc. | Illinois |
| Jerpat Web Designs, Inc. | Colorado |
| Jerry Insurance Agency, LLC | |
| Jerry's Audio-Video | Arizona |