Searching for a media buying agency in California that can drive results for your brand? DesignRush is here to help you connect with agencies trusted by Fortune 500 companies like Pepsico and Estee Lauder. With over 1M monthly visitors and 40,000+ vetted agencies, our platform is designed to facilitate your search for the right partner. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.
Best California Media Buying Company Rankings
103 Companies - Rankings updated: March 31, 2026
DesignRush assesses agencies using expertise standards and verified client experiences to help you make better decisions. Certain agencies have paid placements.
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Media Buying Agencies in California
About The Author and Expert Reviewer
Mariana Delgado is the Head of Marketing at DesignRush, with more than ten years of experience across digital marketing, sales management, search, and video advertising. Since joining DesignRush, she has delivered 3× site-traffic growth and 2× growth in monthly revenue by building scalable, performance-led programs that connect acquisition, content, and brand across channels. Her campaigns have achieved a 5:1 ROAS.





