RDx Advisory Group is a boutique advisory practice for defense and dual-use companies navigating the federal market. The principal brings twenty-five years across the United States Marine Corps, the Office of the Director of National Intelligence, Capitol Hill, and the defense-tech sector — with direct experience building a federal pipeline inside a defense-tech startup from the ground up.
The principal of RDx Advisory Group is Claire J. Buffington — a Marine Corps intelligence officer and senior federal executive with twenty-five years across the Department of Defense, the Intelligence Community, Capitol Hill, and the defense-tech sector.
Twenty years in uniform with the United States Marine Corps — prior enlisted, commissioned as an intelligence officer, retired as Major. Operational and staff assignments included CI/HUMINT Company XO, All-Source Intelligence Platoon Commander, Wing Aviation Intelligence Officer, and Congressional Liaison to the Hill on behalf of the Marine Corps — engaging Members of Congress and senior staff on defense priorities, resource allocation, and national security legislation.
Seven years as a sworn federal law enforcement officer and intelligence specialist with the U.S. Capitol Police — protective missions for Members of Congress, threat intelligence for National Security Special Events including Presidential Inaugurations and State of the Union addresses, and continuity-of-government planning alongside interagency partners.
Nearly a decade at the Office of the Director of National Intelligence, including Chief of Staff for Continuity and Critical Operations — coordinating policy and operations across the seventeen agencies of the Intelligence Community, DOD, FEMA, and DHS. Earlier as Chief Strategic Planner at the National Counterterrorism Center, authoring the National Strategy to Combat Terrorist Travel with analytical briefs delivered to National Security Council leadership.
Direct experience inside a defense-tech startup — building the firm's federal pipeline from the ground up: active pilots and engagements across Army PEOs, the Air Force, SOCOM, DIU, and DHS, with capture strategy across OTA, CSO, SBIR/STTR, and IDIQ pathways. The work RDx does for clients is the work the principal has personally done as an operator inside a venture-backed defense company.
Most advisors in the federal market are a fragment of one of those institutions. A Hill staffer with a Rolodex. An acquisition officer with a network. A retired flag officer renting a name to a consultancy. RDx is the composite — and the operator.
Engagements are scoped individually and bound by quarter or by program. RDx maintains a deliberately limited client roster — the work is the principal's, end to end.