L&A Marketing and Advertising
- Offers media planning and design. Features capabilities, portfolio, news, affiliates, newsletter.
- http://www.lightassoc.com/

LTD Company, Inc.
- A creative advertising and public relations firm.
- http://www.ltdcompanyinc.com/

Lois Knott Advertising
- Full service advertising agency.
- http://www.whyknott.com/

LJF Associates, Inc.
- Integrated marketing communications including advertising, strategic planning, public relations, sales promotion, specialties, direct, print and web design.
- http://www.ljfassoc.com/

Lyons and Sucher Advertising
- Specializing in print, direct mail, brochures, graphic design, radio, public relations, sales offices, displays, special events, and websites.
- http://www.lyonsads.com/

Limori Cipta Kreasi
- Advertising and marketing agency providing logo and graphic identity programs, newsletter, corporate brochures, music posters and web design. Headquartered in Jakarta, Indonesia.
- http://www.limori.com/

Levy Industrial
- Specializes in traditional and electronic advertising, marketing, public relations and web site development, also print designs for product literature.
- http://www.levyindustrial.com/

Leonard
- Chippendale, NSW. Full service, fully accredited with all media in Australia and overseas.
- http://www.leonard.com.au/

Leo Burnett
- Chicago-based agency ranked as the 9th largest worldwide agency in 1998. Site provides full corporate information, credentials, portfolio, and services.
- http://www.leoburnett.com/

Leba Ethnic Media Representatives
- Book advertising in all multi-cultural media in Australia through one point of contact.
- http://www.leba.com.au/

LeagueofDesign.com
- A full service advertising agency, providing a network of internet marketing and traditional advertising services, including all aspects of multimedia, web and print.
- http://www.leagueofdesign.com/

Lawrimore Communications Inc.
- Market research, strategic planning, consulting, advertising, public relations, graphic design, Web design.
- http://lciweb.com/