| Levee Medical | North Carolina |
| Level 12 | Kentucky |
| Level 4 Telecom | Florida |
| Level Access | Virginia |
| Level AI | California |
| Level Effect, LLC | |
| Level Ex, Inc. | Illinois |
| Level Five Solutions | Kansas |
| Level Four Development, LLC | |
| Level Nine Media | |
| Level Software, Inc. | |
| Level Technology, Inc. | |
| Level Up Development | Indiana |
| Level Up Digital Solutions | |
| Level Up Tutorials, LLC | Colorado |
| Level Zero Health | |
| Level.Agency | Pennsylvania |
| Level343 | California |
| Level6 Incentives | Florida |
| LevelEleven | Michigan |
| Levelfield, Inc. | Texas |
| LevelFields | Virginia |
| Levelhead | |
| LevelNET | New Jersey |
| Levelpath, Inc. | |
| LevelTec | Ohio |
| LevelTen Interactive | Texas |
| LevelUp Leads | |
| LevelUp Marketing Solutions, Inc. | |
| LevemCRM | |
| Lever | California |
| Lever Interactive | Illinois |
| Leverable, Inc. | |
| Leverage Group Advertising | |
| Leverage Information Systems | Washington |
| Leverage Marketing Agency, LLC | |
| Leverage Point Corporation | California |
| Leveragen, Inc. | |
| LeveragePoint | Massachusetts |
| LeverBio | |
| Leverege, LLC | District of Columbia |
| Leverest | |
| Leverly, LLC | California |
| Leverton Holdings, LLC | New York |
| LeverX International Company, LLC | Florida |
| Levesque Creative | Massachusetts |
| Levi Marketing Co., LLC | |
| Levi, Ray & Shop, Inc. | |
| Levi, Ray & Shoup, Inc. | Illinois |
| Leviathan Games | Colorado |