| Katalism Technology, Inc. | Texas |
| Katalon, Inc. | Georgia |
| Katalyst | North Carolina |
| Katalyst HealthCares & Life Sciences, Inc. | |
| Katalyst HealthCres and Life Sciences, Inc. | New Jersey |
| Katalyst Labs, Inc. | Massachusetts |
| Katalyst Partners, LLC | New Jersey |
| Katalyst Software Services Ltd | Illinois |
| Katalyst Ventures, LLC | California |
| Katana Cloud Inventory | |
| Katandmouse | California |
| Katapult | |
| Katapult Marketing | Florida |
| KaterAI, Inc. | |
| Kates Technology | Arizona |
| Katmai Tech, Inc. | New York |
| Kato Web, LLC | Minnesota |
| Kättare Internet Services | Oregon |
| Katteb, LLC | |
| Katz Global | Arizona |
| Katz Water Technology | Texas |
| Kaufman Engineered Systems | Ohio |
| Kaushalam, Inc. | Massachusetts |
| KAWA Analytics | North Carolina |
| Kaweah Tech | |
| Kay | New York |
| Kay's Computing, LLC | South Dakota |
| Kaya Pay, Inc. | |
| Kayak Capital | Arizona |
| Kayhan Space Corporation | |
| Kayla Beatty Creative Services, LLC | |
| Kaymbu, Inc. | Massachusetts |
| Kayne Anderson Capital Advisors, L.P. | California |
| Kayothera | |
| KAYWEB Angels, LLC | New York |
| Kayzoe | |
| Kazisu, LLC | |
| Kazisu, LLC | Wyoming |
| KB Computers, Inc. | Indiana |
| KB Financial Group, Inc. | |
| KB Medical Group, Inc. | |
| KB Partners, LLC | Illinois |
| KB Technologies Managed IT | Florida |
| KB-DG | |
| KBD | |
| KBI Biopharma | |
| KBio | Kentucky |
| KBioBox, LLC | |
| KBMax | Texas |
| KBR, Inc. | |