Client Start Year End Year
ALDI 2018 Current
Altria 1954 Current
Bank of America 2019 Current
Bridgestone/Firestone 2012 Current
Campbell Soup Company 2018 Current
Dunkin' 2022 Current
Kellogg's 1949 Current
Nintendo 1991 Current
UnitedHealthcare 2014 Current
Beam Suntory 2021 Current

“What helps people helps business.”

No matter how much we’ve evolved over the years, we’ve never lost sight of what, for us, is the plainest truth in the world: Clients grow their business by creating value for the people they serve. We solve human problems by unlocking what already exists in a brand’s DNA. The result: experiences that move at the speed of culture and brands that stand the test of time.

Helping people has paid off.

We are a 2023 Ad Age A-List Agency Standout and a Campaign Agency Performance Review winner for Creative Breakthrough, High-Value Wins and Inclusive Workplace. In 2022, we were the #1 Most Awarded Agency in the World, recognized as Agency of the Year by Clio Awards, The One Show, D&AD, and 4A’s; #1 Network of the Year by 4A’s and The One Show; and 2nd Most Effective Network by Effie Awards. We’re proud to have been awarded over 400+ prestigious global awards over the last two years and seven Cannes Grand Prix in the past decade.

What Leo started in 1935 – in a Chicago hotel suite with eight employees – has grown into an always-evolving agency with a full suite of integrated services and 56 offices across 41 countries.

  • Emily Doskow

    Emily Doskow

    Chief Marketing Officer

  • Gareth Goodall

    Gareth Goodall

    Chief Strategy Officer

  • Britt Nolan

    Britt Nolan

    President and Chief Creative Officer

  • Chaka Sobhani

    Chaka Sobhani

    Global Chief Creative Officer

  • Andrew Swinand

    Andrew Swinand

    Chief Executive Officer, North America