- Johnson & Johnson/Advanced Sterilization Products
- K+K Thermoforming Inc.
- KCI USA
- Kimberly-Clark Consumer
- Kimberly-Clark Health Care
- Kimberly-Clark Professional
- Kimberly-Clark Professional/Consumer
- Kinesio Holding Corporation
- Kinesio USA, LLC
- Kinsman Enterprises, Inc.
- Kulzer, LLC
- L&R Manufacturing Company
- Leonhard Lang
- LG H&H USA, Inc.
- Links Medical Products, Inc.
- LTS Therapy Systems
- LW Scientific
- Major Pharmaceuticals
- McCord Research, Inc.
- McMerlin Dental Products
- Med-Chain Logistics, Inc.
- Med-Tech Resource, LLC
- Medegen Medical Products, LLC
- Medical Action Industries
- Medical ID Solutions