Marshall Advertising

Marshall Advertising is a media planning and buying agency based in Tampa, Florida. The firm describes media buying and planning as the entirety of its focus, working as a dedicated buyer that concentrates on strategy, negotiation, and campaign performance rather than creative production. Its services span digital channels such as programmatic, paid search, social media, and streaming audio, alongside traditional media including television, cable, radio, print, and direct mail.

The agency also buys emerging and specialized formats, including connected TV and over-the-top streaming, out-of-home, skytyping, event marketing, sports sponsorships, and consumer packaged goods retail media. Marshall Advertising emphasizes market research and audience targeting, media negotiation and rate optimization, real-time campaign monitoring, and brand safety with ad fraud prevention. The company reports a team with more than 250 years of combined experience and says it manages hundreds of millions of dollars in annual advertising spend, with particular expertise in healthcare, entertainment, and credit unions.

It was named to Tampa Magazine's 2025 Best of the City list for best advertising agency and holds Women-Owned Small Business certification. Within out-of-home, Marshall Advertising acts on the buy side, planning and negotiating placements across billboards, digital displays, and other OOH formats as part of integrated, multichannel media programs. As an agency and buyer, it represents advertiser interests, coordinating budgets across channels and optimizing performance rather than owning or selling inventory, and serving clients on a national basis from its Florida base.