- Kyocera Mita
- Lathem Time Company
- Layflat Products, LLC
- LC Industries
- Lee Products Company
- LePage's Inc
- Les Bonbons Mondoux
- Lexmark International, Inc
- Logitech
- MABIS Healthcare
- Mafcote, Inc
- Mako Plastics, Ltd
- MapArt Publishing Corporation
- Maped
- Marjack
- Mars, Inc
- Martin Yale Industries
- Master Lock, LLC
- Master Manufacturing Company, Inc
- Masterpiece Studios
- MAX Co. LTD
- Maxell
- Maxon Furniture, Inc
- Mayline Group
- McGill, Inc