Costello MBA program

At the Costello College of Business at George Mason University, students have numerous opportunities to extend their learning beyond the classroom. Case competitions, unconnected to any course or credit, offer an excellent avenue for students to sharpen their analytical and decision-making skills while gaining valuable experience collaborating as a team in a competitive environment.

As a recent graduate of the Costello MBA program, Kayla Smith, MBA ’25, has built a strong foundation in project management, recently earning a promotion to project manager at State Employees Credit Union. With nearly four years of experience in the field, she enjoys the versatility of project management and the opportunity to collaborate with many different people.

For the past few years, Jerry Pierce, MBA ’92, has been teaching Accounting 203 at the Costello College of Business at George Mason University. A course largely attended by sophomores, Pierce relishes the opportunity to impart his wisdom and teach students about the accounting profession and about life in general.

Supreet Singh, MS Computer Forensics '14, balances coursework with a demanding career, while gaining a lifelong network of colleagues and friends.

Working full-time while getting a graduate degree is no easy feat. But for Air Force veteran and soon-to-be George Mason University alum Kathleen Gillmore, hard work is second nature.

In today’s business landscape, effective leadership depends as much on self-awareness and emotional intelligence as it does on strategy and analytics. Recognizing that, the Costello College of Business at George Mason University is partnering with the Center for the Advancement of Well-Being to provide Costello MBA students with a unique opportunity for one-on-one leadership coaching at no extra cost. 

Sidney Yap, BS Information Systems Operations Management ‘20, MS Management ‘21, Business Analytics Grad Cert ‘22, MBA ‘25, exemplifies exceptional balance—driving innovative strategies at Navy Federal while representing the Philippines internationally in the hammer throw. 

The Costello MBA program at George Mason University prepares students to lead in this new era of AI—equipping them with the skills and strategic mindset to thrive. At Costello, AI isn’t a threat. It’s an opportunity.

The Costello College of Business at George Mason University thrives on collaborative partnerships with innovative companies to provide students with meaningful career opportunities. One such partnership is exemplified by Cindy Parker, the Leidos Corporate Partner Faculty Fellow and instructional professor of management, who is committed to delivering an exceptional learning experience. 

The Costello College of Business at George Mason University is pleased to announce the 2025-2026 Graduate Programs Ambassadors.