Sporn began his career in international finance, working in London for the South African investment bank Investec. This role marked his early engagement with African financial markets.[2] He later served as a private banker at the Geneva-based boutique bank Banque Piguet & Cie, where he specialized in servicing clients from the Middle East and North America.[3]
In 2015, Sporn served as advisor to Senator Ted Cruz. During a reception in New York City. Sporn, facilitated dialogue where the Senator addressed his stance on gay marriage, stating it should be left to the states.[4]
In 2002, Kalman Sporn ran for a seat in the New York State Assembly representing the 69th District in Manhattan. He campaigned as the Republican Party candidate.[5] The race is remembered as one of the most competitive in the district's history.[6]
While Daniel O’Donnell won the seat, Sporn came second in a very competitive field looking to succeed retiring Assemblyman Edward C. Sullivan.
Sporn has been an active proponent of normalizing relations between Israel and Arab nations. Following the signing of the Abraham Accords in 2020, he publicly noted that the agreements "normalized 20-year-old back-channel relationships" between business and political leaders in the region. Following the 2020 normalization pact between the United Arab Emirates and Israel, Sporn, acting as managing director of Marylebone LLC, observed that the accord formalized "20-year-old back-channel relationships" between the two nations. He stated that the "three powers most concerned with Middle Eastern stability" had effectively announced their official collaboration to the world.[7] He has advocated for the private sector's role in advancing these diplomatic breakthroughs, suggesting that economic integration is a key driver of regional stability.[8]
In late 2022, Sporn was contracted by the Turkish embassy in Washington, D.C. to provide strategic consulting services. [9] Working with Ambassador Hasan Murat Mercan, Sporn assisted in promoting a rapprochement between Turkey and Israel after years of strained relations.[10] During this period, he was a registered foreign agent for the Republic of Türkiye under the Foreign Agents Registration Act (FARA). [11][12]