[5] In June 1941, he married the former Phyllis Gordon, who had attended Wellesley College and the New York University School of Law, in a ceremony held at the Lombardy Hotel and officiated by Rabbi Nathan A. Perilman of Temple Emanu-El.
In a 1968 interview with Business Week magazine, Tishman described the company as "an intercompany conglomerate" that could identify building sites and help in all phases of design, financing and construction, offering "capabilities that no other owner-builder or general contractor matches".
As of 2010, the firm owned and managed some 166,000,000 square feet (15,400,000 m2) of commercial property, including the Chrysler Building and Rockefeller Center.
[7] In his obituary in The New York Times, Speyer said Tishman worked every day in the firm's offices until two years before his death.
[1][7] He was chairman, and then Honorary Chairman, of Montefiore Medical Center in the Bronx, Associate Chairman and Charter Trustee of the Jewish Association for Services for the Aged, Trustee of the Citizens Budget Commission, a member of the Real Estate Advisory Committee of Cornell University, a member of the Board of Directors of Boys & Girls Harbor, Director of the Citizen's Housing and Planning Council, and was an Honorary Director of the Grand Street Settlement.