Milton Maltz, a code-breaker during the Korean War and founder of the Malrite Communications Group in 1956 (later The Malrite Company), conceptualized the International Spy Museum in 1996 as a for-profit organization. The original museum facility in the Penn Quarter neighborhood was built by Milton Maltz and The House on F Street, L.L.C. at a cost of approximately . It opened to the public in 2002.