Independent list · re-checked September 28, 2026 · published by Primortul LLC

advertising agencies in California

3 of the 13 advertising agencies on this list are based in California (CA), in Los Angeles, San Francisco. The other 10 are based elsewhere on the list. Who leads them, the work they can show, and why each one made the list. This is the list, not a ranking of the state. Nobody pays to be ranked.

  1. 05 on the list · Los Angeles, CA

    TBWA\Chiat\Day

    Since 1968 · 500+ people

    TBWA\Chiat\Day is the U.S. flagship of the TBWA network, owned by Omnicom, with offices in Los Angeles and New York. Chiat/Day was founded in Los Angeles in 1968 by Jay Chiat and Guy Day and merged into TBWA in 1995; the agency works through its Disruption process and Media Arts approach and is historically known for Apple's '1984' and 'Think Different' campaigns.

    Why it’s hereOwned by Omnicom; the Los Angeles agency behind some of the most cited campaigns in U.S. advertising history.

    Work they can showLevi's. "The Floor Is Yours" anthem film built around dance choreography by Sherrie Silver. Jack in the Box. "Feeding Time" campaign. Gatorade. "Always in Motion" campaign for Gatorade water.

    Estimated cost

    Estimated: $8,000–$30,000/mo, typical for US advertising retainers; not a quote.

    Typical industry estimate, not a quote from any firm on this list.

    creative · Disruption strategy · technology and consumer brands · holding company: Omnicom

  2. 08 on the list · San Francisco, CA

    Goodby Silverstein & Partners

    Since 1983 · 201–500 people

    Goodby Silverstein & Partners is a full-service advertising agency at 45 Fremont Street in San Francisco with a second office in New York, founded in 1983 by Jeff Goodby and Rich Silverstein and owned by Omnicom. It describes its work as 'experiences that reach millions, but seem to speak only to you', and current clients include Xfinity, Comcast Business, Doritos, Cheetos, Mountain Dew and the Smithsonian; it is the agency behind 'Got Milk?'.

    Why it’s hereOwned by Omnicom; four decades of nationally recognised broadcast and Super Bowl work from San Francisco.

    Who leads itSarah Thompson, Chief Executive Officer (the agency's first CEO, named September 2025).

    Estimated cost

    Estimated: $8,000–$30,000/mo, typical for US advertising retainers; not a quote.

    Typical industry estimate, not a quote from any firm on this list.

    creative · broadcast and Super Bowl campaigns · snack and beverage brands · holding company: Omnicom

  3. 11 on the list · Los Angeles, CA

    72andSunny

    Since 2004 · 201–500 people

    72andSunny is a global creative company founded in Los Angeles in 2004 by John Boiler, Glenn Cole and Robert Nakata, with offices in Los Angeles, Brooklyn, Amsterdam and Sydney. It is owned by Stagwell and describes its role as 'unleashing possibility' for consumer, technology and entertainment brands; it has been Ad Age's Agency of the Year and a repeat A-List agency.

    Why it’s hereOwned by Stagwell; one of the most decorated creative agencies to emerge from Los Angeles in the past two decades.

    Who leads itEvin Shutt, Global CEO.

    Estimated cost

    Estimated: $8,000–$30,000/mo, typical for US advertising retainers; not a quote.

    Typical industry estimate, not a quote from any firm on this list.

    creative · brand campaigns · entertainment and consumer brands · holding company: Stagwell

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