- Lack's Furniture Centers
- Laconia Savings Bank
- Lacoste
- LaCrosse Footwear
- Lacrosse Lumber
- Ladies Choice
- Ladies Choice Fitness Center
- Ladies Fitness Express
- Ladies Workout Express
- Lady Bug Florists Piggly Wiggly
- Lady Fingers
- Lady Foot Locker
- Lady Grace Intimate Apparel
- Lady Nails
- Lady of America
- Lady of America Fitness Center
- Ladybugs
- Lady's Workout Express
- Lafarge Corporation
- Lafayette Life Insurance
- Lagniappe
- Lagondola Spaghetti House
- LAI LAI Chinese Restaurant
- Laidlaw Education Services
- Laird's Tax Service
- Lake City Bank
- Lake Mills Cleaners & Dyers
- Lake Pointe Apartments
- Lake Primary Care Physicians
- Lake Regional Health System
- Lakes
- Lakeshore Apartments
- Lakeshore Learning Store
- Lakeshore Realty
- Lakeside Auto Sales
- Lakeside Building Maintenance
- Lakeside Cleaners
- Lakeside Country Club
- Lakeside Dental