John N. Irwin

Brookside Mezzanine Partners Management LLC (Brookside Capital Partners) is a private equity firm founded in 1977 by John N Irwin and David D Buttolph. The firm is headquartered in Stamford, Connecticut.

Brookside International Inc (Brookside International) is a private equity arm of The Brookside Group founded in 1977 by John N. Irwin and Donald L. Hawks. The firm is headquartered in Stamford, Connecticut.

Wildlife Conservation Society operates as a non-governmental organization aiming to save wildlife. The firm saves wildlife and wild places worldwide through science, global conservation, education, and the management of the urban wildlife parks, led by the flagship Bronx Zoo. It protects animals like gorillas in Congo, tigers in India, wolverines in the Yellowstone Rockies, and ocean giants. The company was founded on April 26, 1895 and is headquartered in Bronx, NY.

JJJ Charitable Foundation, Inc. engages in the provision of social services. It was founded on January 21, 1998 and is headquartered in Stamford, CT.

Congoleum Corp. manufactures tiles and floor-covering products. It specializes in luxury vinyl sheet flooring and tile & plank flooring, and duraceramic. The company was founded in 1886 and is headquartered in Mercerville, NJ.