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The Madison Avenue Field GuideA field guide to marketing & advertising, by Brandon Mina

GlossaryB2B & GrowthCustomer Advocacy

B2B & Growth

Customer Advocacy

Programs that mobilize happy customers to provide references, reviews, testimonials, and case studies that influence prospects.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

Customer advocacy is the use of programs that mobilize happy customers to provide references, reviews, testimonials and case studies that influence prospects. Advocates may also speak at events or join referral programs. Because buyers trust peers more than vendors, advocacy strengthens credibility and can shorten sales cycles in B2B markets.