Operating Businesses & Funds
A link to Castleton cci


Dubin & Co. is the founder and lead shareholder of Castleton Commodities International (“CCI”), a leading independent merchant energy company specializing in power, natural gas, oil & refined products, and renewables. The company operates predominantly in North America and Europe.

A link to Engineers Gate Engineers gate

Engineers Gate

Dubin & Co. is the founder of Engineers Gate, a quantitative equity trading business. In January 2020, the business, headed by long term Dubin & Co. partner Greg Eisner, was spun out to manage third party capital.

A link to Haussmann haussmann


Dubin & Co is the founding investor and partner in Haussmann Development, a real estate company developing mixed used and multi-family buildings in the New York metropolitan area.