Marketer of the Month, Callie Vanderbilt at Blackbaud

Callie Vanderbilt at Blackbaud is our Marketer of the Month! Callie is so passionate about scaling the voice of the customer. As a senior customer marketing manager at Blackbaud, she leads customer storytelling and advocacy initiatives that transform customer experiences into proof that supports marketing, sales, and executive storytelling.

Using Peerbound, Callie has helped build a scalable customer proof engine by surfacing approved customer quotes, growing a reusable library of customer proof, and making customer insights more accessible across the business.

In 2026 alone, Blackbaud has seen an 800% year-over-year increase in published customer stories. Peerbound Measure has also helped demonstrate the business impact of customer proof, revealing that deals using customer proof account for approximately 30% of revenue despite representing only about 15% of deals.

Her focus is simple: helping more teams leverage authentic customer voices to build trust, strengthen buyer confidence, and drive business impact. It’s an honor to work with you, Callie, and we look forward to doing more great things together. 

Congratulations, Callie!