Couldn’t you use one more sponsor?

Elevate your organization to the next level

Sometimes it takes just one more sponsor to make your organization successful. One More Sponsor develops and sells annual sponsorship packages for associations and conferences. We compile your assets into a valued package that will appeal to sponsors looking to drive ROI.

Now more than ever, sponsors expect a mutually beneficial relationship. One More Sponsor is a lifetime of corporate contacts sifted, filtered, and custom selected for your needs. Our established personal connections nurtured over the years deliver associations and conferences results year after year through each board transition.

We know our clients are very busy so we take this time intensive sales initiative off their plate.

About Our Team


Tracy Oosterman

Managing Partner

Originally from Boston,Tracy Oosterman founded One More Sponsor in 2008 to help nonprofits connect with the right corporate sponsors needed to make their events profitable. Previously in her career, she sold sponsorships for American City Business Journals and Time Warner/Southern Living. She has built an extensive network of relationships over the past 20 years beginning in Atlanta and the Southeast and expanding nationwide.


Gregg Bauer

Creative Director

Gregg has something most people don’t have: 30 years of experience in graphic design and advertising. Over the years he has helped brand company’s like: CNN, The Varsity, Dekalb Medical, Care International, and many B2Bs.

For the past ten years he has also been an adjunct professor of Advertising at Savannah College of Art and Design (SCAD) on the Atlanta campus. He teaches business of advertising classes as well as art direction and portfolio design.


Christy Milliken

Social Media Manager

Christy is a Florida native, has over 20 years in business management, marketing, and copywriting in strategic planning & events. Additional experience includes 10 years of Social Media development, strategy and growth along the coastal communities in South Walton, FL. In 2015 she founded The Social Curator which concentrates on integrated digital media management, partnerships, events  and social media education. Her market communities include regions across Florida, Georgia, Louisiana, Alabama, Tennessee, California, and Colorado.


Bernadette O’Grady DiMauro

Event Planner

Though Bernadette has spent the past few decades enjoying the warmer climate in the South, she credits her work ethic and down-to-earth attitude to her Minnesota upbringing. She sees every event as an opportunity to tell a meaningful story with purposeful, intentional decisions and flawless execution.

In her marketing career in retail real estate, Bernadette facilitated leadership retreats, produced memorable awards banquets, organized annual meetings and corporate charity activities. She’s executed large-scale trade show exhibits, managed product launches, planned company parties for 1000+ guests and arranged unique, top-tier client dinners and receptions.