Tim Grattan

Tim serves as By Light’s Senior Vice President for Cyberspace Operations, supporting the Joint Force Headquarters – Department of Defense Information Network as a subject matter expert for cyberspace plans and operations. His current focus is on defensive cyberspace operations to include the education, training, and exercise of individual and collective skills required for network defenses. Tim joined By Light in 2015 after retiring from the U.S. Marine Corps – his last four years of service at U.S. Cyber Command as the Chief of Fires, responsible for offensive cyberspace operations, and command priorities supporting the development of the Unified Platform and the Cyber Mission Forces. Tim’s cyberspace operational experience is reinforced by service as a Marine Corps infantry officer campaigning in Afghanistan, Iraq, and Somalia. Tim is a graduate of the U.S. Naval Academy and holds multiple master’s degrees in planning at the operational and strategic levels of war.