Mosaic tile
Coming soon: The Costello College of Business will have a new look
Our new look is a symbol of our commitment to outstanding and rigorous academics, pragmatic career preparation and internships, flexibility and value, and an atmosphere of belonging for everyone.

Learn here. Lead anywhere.

Change your world with a business degree or certificate from the Donald G. Costello College of Business at George Mason University. We enable your future success in a wide range of business careers—through knowledge creation, research, and experiential learning.

Discover how we can help you reach your goals.

Costello College of Business News

School of Business to be named in Honor of Donald G. Costello

A $50 million planned gift to George Mason University, the largest school naming gift in Mason's 51-year history, will name the School of Business in honor of Donald G. Costello.

50 years of opening new pathways.
Impactful Scholars

Our faculty publish regularly in top-tier disciplinary journals, are cited by the press, and are actively engaged in making discoveries to address a wide set of societal and institutional challenges.

Costello College of Business Events

GMU Metro Stop
Graduate Admissions Events

Attend an info session to learn more about our graduate programs and graduate certificates.


Find out what's happening at the Costello College of Business. See all events here.