- Light Parker Furniture Co
- Light Parker Kids
- Lincoln Fire Co
- Lincoln Mortgage Co
- Linton's-Food Management Svc
- Lisa Construction
- Little Munchkins Learning Ctr
- Lloyd C Perlmutter CPA
- Lodgenet Entertainment
- Lombard Entertainment
- Lone Star Steakhouse & Saloon
- Lonza Inc
- Louis Schafer Assoc
- Lowery Electric
- Ltcb Mas Investment Mgmt
- Lubricating Lifts Inc
- Ludwig Corp
- Lyceum Senior Ctr
- M & V Global Foods
- M D Events
- M Lader Co
- M W Auto & Truck Repair
- M W Management Co Inc
- Machine Tool & Die
- Macula Vision Research Fndtn
- Madison Bank
- Madison Kelly Contractors Inc
- Mae Group Inc
