Geoff serves as Chairman & CEO of ghSMART. ghSMART is an advisory firm that helps leaders who own or run large institutions to run at full power.

ghSMART was named one of the "world's top firms" in Broderick's The Art of Managing Professional Services, and was profiled in Atul Gawande's The Checklist Manifesto, Tom Peters' The Little Big Things, and George Anders' The Rare Find. The firm is the subject of two Harvard Business School Cases that have been taught to all 900 first-year MBAs, titled "ghSMART & Co.: Pioneering in Professional Services."

Geoff is co-author, with his colleague Randy Street, of the New York Times bestselling book Who: The A Method for Hiring. Shanghai Daily named Who a "Top 5 Business Book in China" and Canada's Globe and Mail named it the "#1 Best Business and Management Book of 2009." Geoff is author of the #1 Wall Street Journal bestseller Leadocracy: Hiring More Great Leaders (Like You) into Government, which won the 2013 IPPY Gold Medal for Best Business Book of the Year. In the 1990s, Geoff co-created the Topgrading brand of talent management.

As a social entrepreneur, Geoff is the Founding Chairman of two 501c3 not-for-profit organizations. SMARTKids Leadership Program™ provides a customized program of 10 years of leadership tutoring and a $100,000 scholarship to top students with leadership potential from low-income communities. Secondly, The Leaders Initiative™ seeks to elevate humanity by identifying, developing, and deploying society's greatest leaders into government. Geoff and his ghSMART colleagues volunteer as leadership advisors in the fields of education, public health, and government.

Geoff earned a B.A. in Economics with Honors from Northwestern University, an M.A., and a Ph.D. in Psychology from Claremont Graduate University, where he was mentored by Peter F. Drucker. Geoff was elected to Sigma Xi, the honorary society for holders of doctoral degrees, and is a member of Young Presidents' Organization (YPO).