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Our Leadership

GEM Staff

Brennon Marcano
Chief Executive Officer

703-562-3646
[email protected]

Bio
Erika Howell
Chief Operating Officer

703-562-3646 ext 3647
[email protected]

Bio
Shaun L. Johnson
Executive Assistant to the CEO

703-562-3646
[email protected]

Bio
Antonio Storey
Senior Fellowship Manager

703-562-3646
[email protected]

Bio
Joann Ransom
Senior Programs Manager

703-562-3646
[email protected]

Bio
Hannibal Barake
Client Management Specialist

703-562-3650
[email protected]

Bio
Tim Thompson
Innovation and Program Manager

703-562-3646
[email protected]

Bio