Derald H. Ruttenberg (17 February 1916 – 19 September 2004) was a lawyer who became a deal maker, organizing large industrial mergers.

He provided the financing for the Derald H. Ruttenberg Cancer Center at Mount Sinai Hospital, New York.

[2] In the 1960s and 1970s Ruttenberg was one of the larger players during a wave of corporate acquisitions, and built up a large and liquid personal portfolio.

[8] The Alco Products Division, a railway locomotive manufacturer, became a victim of Ruttenberg's drive for profit.

The locomotive factory in Schenectady, New York, was closed in 1969, and White Motor Corporation purchased the diesel engine business in February 1970.

[7] Early in 1969 Studebaker-Worthington floated STP as a public corporation, listed on the American Stock Exchange.

[11] While at Studebaker-Worthington, Ruttenberg was a member of the Deepdale Country Club on Long Island, where he played golf.

[2] After a financial reconstruction of the Weir Group in 1981, Ruttenberg and Jacob Rothschild gained effective control of 40% of the company.

[2] Ruttenberg was successfully treated at Mount Sinai for lymphoma, and in 1986 donated $7 million to found centers for cancer research and treatment at the hospital.

[17] Derald H. Ruttenberg died at Mount Sinai from complications of lung cancer on 19 September 2004, aged 88.