Credit/AdobeStock
A CEO transition is underway at the Gahanna, Ohio-based KEMBA Financial Credit Union – the $2.3 billion credit union announced Thursday that Donna Grimmett will over the helm on Oct. 1, 2025 from current President/CEO Mark Decello, who is retiring.

Grimmett joined KEMBA in March 2018 and soon after took on the role of CFO under Decello’s leadership. She has over 25 years of industry expertise in strategic planning, financial strategy and member-focused initiatives, and has been instrumental in driving KEMBA’s financial growth and modernization during her tenure, according to the credit union.
“Donna has exemplified unwavering dedication to KEMBA’s members, associates and the credit union community,” KEMBA Board Chairman Mike Slaper said. “With her proven leadership and understanding of our mission, we’re confident she will build on KEMBA’s strong foundation and continue guiding the credit union toward an even more impactful and successful future; one where KEMBA remains financially sound and focused on enriching the financial lives of our members.”
A life-long Central Ohio resident and graduate of The Ohio State University, Grimmett is an active member of the community, true credit union advocate and passionate leader, KEMBA noted.
“I’m grateful for the opportunity to serve in this new role and continue to grow together with our members, communities and associates,” Grimmett said. “I’m excited about what we’ll accomplish together.”

Decello’s retirement will follow a tenure at KEMBA that lasted over 15 years.
“I am incredibly proud of what we have built together, and I have full confidence that Donna will continue to advance our foundation of commitment to our members and associates, and most importantly, our mission,” Decello said. “She has been instrumental in KEMBA’s growth and financial strength, and leads with clarity, conviction and passion.”
Editor's note: An earlier version of this story incorrectly referred to KEMBA Financial Credit Union as the West Chester, Ohio-based Kemba Credit Union. CU Times regrets the error.
© Arc, All Rights Reserved. Request academic re-use from www.copyright.com. All other uses, submit a request to TMSalesOperations@arc-network.com. For more information visit Asset & Logo Licensing.