10 West 56th Street is a commercial building in the Midtown Manhattan neighborhood of New York City. It is along 56th Street's southern sidewalk between Fifth Avenue and Sixth Avenue. The six-story building was designed by Warren and Wetmore in the French Renaissance Revival style. It was constructed in 1901 as a private residence, one of several on 56th Street's "Bankers' Row".

Carlos Slim Helú is a Mexican business magnate, investor, and philanthropist. From 2010 to 2013, Slim was ranked as the richest person in the world by Forbes business magazine. He derived his fortune from his extensive holdings in a considerable number of Mexican companies through his conglomerate, Grupo Carso. As of December 2023, the Bloomberg Billionaires Index ranked him as the 11th-richest person in the world, with a net worth of $105 billion or about 7% of Mexico's GDP, making him the richest person in Latin America.