Costello College of Business Graduate Programs

Tiago Requeijo, director of Mason’s Master’s in Finance program and assistant professor of finance at the Donald G. Costello College of Business at George Mason University has taken a unique journey from his studies in mathematics to a career in the finance industry. Learn more about him.

For John Davis, the welcoming staff and unwavering support, as well as the discussion-based class structure he found at the Donald G. Costello College of Business at George Mason University were the ideal conditions to succeed in the MBA program.

The Donald G. Costello College of Business at George Mason University’s Graduate Students of the Year for 2022-2023 exemplify the highest standards of academic excellence, leadership, and dedication to their field. Here, they explain why they chose Mason, and offer advice to others considering master’s degrees in business.

Ryan Archibald took his collegiate studies across the country and back again before joining the Donald G. Costello College of Business at George Mason University to pursue a degree from the Master’s in Real Estate Development program.

Director of George Mason University’s Master of Science in Business Analytics (MSBA) program, Mehmet Altug, found his passion while studying industrial engineering as an undergraduate. Altug says he took classes on manufacturing management, supply chain planning, and operations research, and liked the combination of quantitative models and business problems. Fast forward to today, and Altug, in addition to bringing his expertise to the MSBA program, also serves as an associate professor of operations management at the Costello College of Business.

Meeting a guest speaker in the classroom helped Bailey Wilson, MBA ’23, land a fulfilling job position in a new career path.

For Bret Johnson, academic director of the Master of Science in Accounting program at George Mason University School of Business, joining Mason was like coming home. Johnson previously lived in Fairfax County where he spent 10 years working as a senior auditor for Ernst & Young and as a staff accountant at the U.S. Securities and Exchange Commission (SEC), prior to pursuing his PhD at Ohio State.

May Abou Ghazaleh is not only the assistant director of the Master’s in Real Estate Development (MRED) program at George Mason University’s School of Business, but she’s also an alumna of the program.

The Costello College of Business at George Mason University announced a new, highly customizable Master’s of Science in Management (MSM) program that will launch in fall 2024. Applications for this new modular education program are now available.

At the end of March, the Montano Student Investment Fund hosted "Patriots Day on Wall Street," offering a select group of George Mason University School of Business finance students an enriching experience that included a tour of Wall Street and meetings with various firms.