Doug A. P. Hamilton

Carrizo Oil & Gas, Inc. engaged in the exploration, development, and production of natural gas and oil. Its operations included Delaware Basin and Eagle Ford Shale. The company was founded by Sylvester P. Johnson IV and Steven Alan Webster in December 1993 and was headquartered in Houston, TX.

Hamilton Investment Partners LLC (Hamilton Investment) is a private equity and venture capital firm founded in 1983 by Doug A. P. Hamilton. The firm is headquartered in New York.

ABV LLC(Ascent Biomedical) is a venture capital firm founded in 2004 by Steven I Hochberg, Geoffrey W Smith and Steve Hochberg. The firm is headquartered in New York.

Softgate Systems, Inc. provides reliable bill payment and prepaid services. It offers bill payment, prepaid products, international top ups, and PayXchange. The company is headquartered in Fairfield, NJ.

Bluefin Payment Systems LLC provides secure payment technology for enterprises, financial institutions and small-medium sized businesses. The firm's solutions include integrated payment systems for ISV's, Omni-channel point of sale, and e-commerce. The company was founded by Patricia Keller, Marc A. Cole, Todd S. Whiton and Ruston Miles in 2007 and is headquartered in Atlanta, GA.