Major Public Companies

• Business: Investing: Stocks and Bonds: Exchanges 

• L-3 Communications  - Contractor in command, control and communications, intelligence, surveillance and reconnaissance (C³ISR), government services.
• Laboratory Corporation of America  - Site provides a company overview, directory of services, answers to frequently asked questions, and information on corporate governance.
• Laclede Group  - Site provides updates and information on Laclede's corporate affairs, subsidiaries, and investor services.
• Laidlaw International, Inc.  - American bus company primarily involved in school bus operations and the transport of students across Canada and the United States.
• Lam Research Corporation  - Semiconductor processing and water fabrication equipment manufacturer. Site presents information on products, services, and investors.
• Land O'Lakes, Inc.  - Dairy cooperative produces packaged milk, margarine, sour cream, and cheese.
• LandAmerica Financial Group  - Title insurance underwriter also offering a number of real estate transaction services.
• Landstar System  - Truckload freight carrier's website contains news, a calendar of company events, and information on business opportunities and investor relations.
• Las Vegas Sands  - Hotel, gaming, and resort development company based in Las Vegas, Nevada.
• La-Z-Boy  - Company makes and sells upholstered furniture. Also offers chairs, sofas, tables, and modular seating units.
• Lear Corporation  - Car seat systems manufacturer also engaged in the making of other car interior components such as floors and acoustic systems.
• Legg Mason  - Global asset and mutual fund management firm with domestic and institutional subsidiaries that serve various markets.
• Leggett & Platt  - Maker of coiled bedsprings, finished furniture, commercial furnishings, industrial materials, die-cast products, and outdoor lighting fixtures.
• Lehman Brothers Holdings  - Investment banking company's website provides information on business segments, the services offered, and shareholders.
• Lennar  - Homebuilding, land-owning, and loan-making American company. Site presents contact details, a home locator, and information on portfolio and investor relations.
• Lennox International  - Maker of air conditioning, heating, and fireplace systems for residential and commercial purposes. Also manufactures commercial refrigeration equipment.
• Level 3 Communications  - Telecommunications carrier and Internet backbone company. Site provides news and information on services and investor relations.
• Levi Strauss & Co.  - Official company website provides information on the brands marketed, corporate citizenship, career opportunities, and financial performance.
• Lexmark  - Desktop and network printers manufacturer spun off from IBM. Also offers cartridges, ink supplies, and business and professional solutions.
• Liberty Media  - Company that owns interests in a wide range of electronic retailing, media, communications, and entertainment businesses.
• LifePoint Hospitals  - Company overview, contact details, and information on the communities served, physician opportunities, and corporate governance.
• Limited Brands  - Apparel, personal care, beauty, and lingerie company. Site provides information on brands and products, investor relations, and career opportunities within the company.
• Lincoln Electric Holdings  - Cleveland based manufacturer of arc-welding, cutting products, and welding supplies.
• Lincoln Financial Group  - Financial services company based in Fort Wayne, Indiana. Offers mutual funds, retirement solutions, and life insurance.
• Lithia Motors  - Full-service vehicle retailer and car and truck store with stores in a number of states in the Western and Midwestern United States.
• Live Nation  - Producer and promoter of live entertainment. Owns and/or operates various entertainment videos, concerts, Broadway shows, and sports events.
• Liz Claiborne  - Women's apparel manufacturing company offers products for women in all sizes.
• Loews  - Diversified holding company with insurance, tobacco, contract oil-drilling, and natural gas pipeline operations.
• Louisiana-Pacific  - International producer of oriented strand board (OSB) siding and other OSB-based products.
• Lowe's Companies  - Nationwide chain of home improvement superstores provides professional and do-it-yourself products and services.
• LSI Corporation  - Semiconductor, storage, and networking company designs custom silicon (ASICs), host bus adapters, RAID adapters, storage systems, expanders, and software.
• Lubrizol  - Company manufactures lubricant additives and specialty chemicals.
• Lucent Technologies  - Overview of its developments and manufactured products in telecommunication systems.
• Lyondell Chemical  - Manufacturer specializing in intermediate chemicals such as propylene oxide, styrene monomers, and MTBE, a chemical used to reduce gas emissions.