- Lifecare Hospitals-Pittsburgh
- Lifeline Therapy
- Lincoln Supply & Equipment
- Linda's Imprinted Products
- Link Computer Corp
- Lioness Martial Arts
- Lisa G Fonas DDS
- Lisa G Fonas DDS
- Little Dishes Sweet Shoppe
- Little People's Shining Light
- Lodovico & Associates
- Louis Curry Graphics Inc
- Louis Painting Co
- Love & Learn Childrens Ctr
- Lucky Dog Training Ctr
- Lung Associates
- Lynch Water Treatment Assoc
- Lynn Marie Potts MD
- M J Kelly Realty
- M K La Face CPA
- M K La Face CPA
- M M Marra Construction
- Mac Donald Pipe Band
- Madhavan Chandra Tauberg
- Madhavan Chandra Tauberg Assoc
