- Lone Star Transplant Association
- Lone Star Truck Center
- Lonesome Pine Hospital
- Long Automotive Group
- Long Beach Area Convention and Visitors Bureau
- Long Beach Area Convention and Visitors Bureau-Fairfax
- Long Beach Area Convention and Visitors Bureau-Woodbridge
- Long Beach Medical Center
- Long Beach Memorial Medical Center
- Long Island Head Start
- Long Island Jewish Forest Hills
- Long Island Jewish Medical Center
- Long Island Jewish Valley Stream
- Long Island Marriott
- Long Island State Veterans Home at Stonybrook University
- Long Reality Co.
- Longboat Key Club and Resort
- Longmont United Hospital
- Lopez Negrete Communications Inc.
- Lord Corporation
- Loring Hospital
- Lorllard, Inc
- Los Alamitos Medical Center
- Los Alamos County
- Los Alamos Technical Associates
- Los Angeles Air Force, Asian Pacific American Program
- Los Angeles Airport Marriott
- Los Angeles Athletic Club
- Los Angeles Community Hospital
- Los Angeles Community Hospital at Norwalk
- Los Angeles County Department of Mental Health
- Los Robles Regional Medical Center
- Loudermilk Conference Center
- Loudon County CBV
- Louis B. Stokes Cleveland VA Medical Center
- Louisa County
- Louisiana Department of Health and Hospitals, Research and Development Section
- Louisiana Hospital Association
- Louisiana Housing Finance Agency
- Louisiana Organ Procurement Agency
- Louisiana State University
- Louisiana-Pacific
- Louisville East - Fairfield Inn by Marriott
- Lourdes College
- Lourdes of Burlington County
- Lousiana Hospital Association
- Love and Company
- Lovelace Medical Center
- Lovelock Volunteer Fire Department
- Low Country Healthy Start