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.

Fedders was mainly interested in the brand, product designs and sales force, and shut down the manufacturing facilities.

[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.