Marc Raimondi currently serves as the chief of staff to the executive chair of the Silverado Policy Accelerator, a bipartisan Washington, DC–based think tank focused on a variety of national and economic security issues. Marc is also the founder of LexStrat LLC, a government relations, communications, and international affairs consulting firm supporting clients in the national security, public safety, cyber, legal, and technology markets.

From March 2014 through September 2021, Marc led the external communications, corporate engagement, and international affairs pertaining to national security for the US Department of Justice, including serving stints leading the office as the director and deputy director of Public Affairs. Marc was the senior communications advisor for national-security-related matters, including foreign and domestic terrorism, mass shootings, cyber incidents, CFIUS, FARA, counterespionage, and other critical issues.

Marc was detailed from the Justice Department to the White House's National Security Council (NSC) from November 2016 until June 2018, where he served as director of Strategic Communications and was the lead communications advisor to the assistants to the president for Homeland Security, Counterterrorism and Cybersecurity. While at the White House, Marc supported the counterterrorism, intelligence, cybersecurity, and aviation security teams and directorates.

Prior to joining the Justice Department, Marc served for several years in private industry as a director of Global Government Relations and Communications at L3Harris Corp.'s (LHX) Washington operations. Before moving to the private sector in 2007, Marc held senior communications positions at the departments of Homeland Security and Defense. He started his career as an infantryman in the US Army.