- Immunostics, Inc.
- Integrity Medical Devices, Inc.
- JANT Pharmacal/Accutest
- Jones Medical Instrument Company
- Jones Zylon Company
- Kawasumi
- Kendall SharpSafety
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- Kennedy-Webster Electric Company
- King Diagnostics
- LABSCO
- LagasseSweet
- Lakeside Manufacturing, Inc.
- Luxor
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