| Liberty University | Virginia |
| Liberty Wireless | Maryland |
| LibertyTest | California |
| LibertyX | |
| Libiquity | |
| LibLime | Ohio |
| Libra Industries | Ohio |
| Libra Therapeutics | |
| Libra Therapeutics | |
| Library Concepts | Texas |
| LibraryTools.com | New York |
| LibraryWorld | California |
| Libration Systems Management, Inc. | |
| License Online | South Carolina |
| Licensed to Code | California |
| Lickability | |
| Liconix Industries, Inc. | New York |
| Licuos | New York |
| Liddweb, LLC | |
| Lido, Inc. | |
| Life Edit Therapeutics | |
| Life House | New York |
| Life In Motion | |
| Life Magnetics | |
| Life Pacific University | California |
| Life Recovery Systems HD, LLC | Louisiana |
| Life Science Angels, Inc. | California |
| Life Science Outsourcing, Inc. | California |
| Life Sciences Advanced Technologies, Inc. | Florida |
| Life Scientific, Inc. | Missouri |
| Life Spine | Illinois |
| Life Systems Software, Inc. | California |
| Life University | Georgia |
| Life Whisperer | California |
| Life.ai | Colorado |
| Life360 | California |
| Life365 Health, LLC | |
| LifeActive Bio | |
| LifeAt | |
| Lifeblue | Texas |
| LifeCanvas Technologies, Inc. | Massachusetts |
| Lifecore Biomedical, Inc. | Minnesota |
| LifeCycle Delivery | Arizona |
| LifeData, LLC | Indiana |
| LifeGrid Internet | Indiana |
| Lifeguard Computers, Inc. | Utah |
| Lifehacker | New York |
| LifeLens Technologies, Inc. | Pennsylvania |
| Lifeline Cell Technology | |
| Lifelines Neuro Company, LLC | Kentucky |