| Krystal Biotech, Inc. | Pennsylvania |
| KrystalBox Technologies, Inc. | Nevada |
| Krytar, Inc. | California |
| Kryterion, Inc. | Arizona |
| KSA Electronics | California |
| kSARIA Corporation | |
| KSF Space | |
| KSL Biomedical | New York |
| KSM Electronics, Inc. | Florida |
| KSM Marketing Agency | |
| KSQ Therapeutics, Inc. | |
| KST Data | California |
| KTBYTE | Massachusetts |
| KTC Integrated Systems | Florida |
| Ktech Telecommunications, Inc. | California |
| KTK Design | |
| KTL Solutions | Maryland |
| KTS, Inc. | Massachusetts |
| Kuali, Inc. | Utah |
| Kualitatem | New York |
| Kualitee | |
| Kubby, LLC | |
| Kubeark | |
| KubeDB | |
| Kuberre Systems, Inc. | Massachusetts |
| Kubesafe, Inc. | |
| Kubikware, LLC | Florida |
| Kubota Vision, Inc. | |
| Kubotek3D | Massachusetts |
| Kubuntu Focus | |
| Kuchoriya Softwares | |
| Kudo Biotechnology | Massachusetts |
| KUDO, Inc. | New York |
| KUDOS Design Collaboratory | |
| Kuebix | Tennessee |
| Kuehn Consulting, LLC | Wisconsin |
| Kuehnel Networking, LLC | Wyoming |
| Kuhmute | |
| Kuiper Belt Media | |
| KUITY Corporation | California |
| Kukami Platform, Inc. | |
| Kula Bio, Inc. | |
| Kuleana Technology, Inc. | |
| Kuleon Bioscience | Washington |
| KULR Technology Group, Inc. | |
| Kultprosvet, Inc. | |
| Kumbh Design, Inc. | |
| Kumo | California |
| Kumquat Biosciences, Inc. | |
| Kumu, Inc. | |