| Limestone University | South Carolina |
| LimeTech, Inc. | Massachusetts |
| Limeweave | California |
| Limina | Colorado |
| Liminal Insights, Inc. | California |
| Liminal Sciences, Inc. | Connecticut |
| Liminal Strategy Partners, LLC | New York |
| Limitless | Minnesota |
| Limitless Technologies | Wyoming |
| Limo Anywhere, LLC | Texas |
| Limus Design, Inc. | |
| Linaire Engineering, Inc. | Missouri |
| LinAmp Technologies | California |
| LinaTech, Inc. | |
| Linbit | Oregon |
| LINC Design, LLC | Pennsylvania |
| Linch Computer Network Services | Texas |
| Linchpin SEO, LLC | |
| Lincoln College | Illinois |
| Lincoln Data | Washington |
| Lincoln Loop, LLC | |
| Lincoln Marketing | |
| Lincoln Memorial University | Tennessee |
| Lincoln Technical Institute, Inc. | New Jersey |
| Lincoln University | Pennsylvania |
| Lincoln University of Missouri | Missouri |
| Lincor , Inc. | Tennessee |
| Lind Electronics, Inc. | Minnesota |
| Linda Lewis Advertising, LLC | |
| Lindbrook Capital, LLC | California |
| Linden Digital Marketing | |
| Linden Lake Venture Capital | Maryland |
| Linden Research, Inc. | California |
| Lindenwood University | Missouri |
| Lindo Systems, Inc. | Illinois |
| Lindsay Corporation | |
| Lindsey Regulatory Affairs Consulting, LLC | |
| Lindsey Wilcon College | Kentucky |
| Lindus Health Ltd | New York |
| Lindy Biosciences, Inc. | North Carolina |
| LINE Imaging Systems | New York |
| Line2, Inc. | California |
| Lineage, Inc. | |
| Lineaje | California |
| Lineaje, Inc. | |
| Linear B, Inc. | California |
| Linear Creative | |
| Linear Health Sciences | Oklahoma |
| Linear Integrated Systems | California |
| Linear Method | Colorado |