Gregory A. Pratt

InterGen NV operates power generation plants. It owns, operates and maintains combined-cycle gas-fired power plants in the United Kingdom and has a stake in modern coal-fired power stations in Australia. The company was founded in 1995 and is headquartered in Amsterdam, the Netherlands.

InterGen generates and sells electric power. The company was founded in 1985 and is headquartered in Burlington, MA.

Part of US Generating Co., J. Makowski Co., Inc. is an energy conservation consultant. The company is based in Boston, MA.

InterGen Netherlands BV develops and operates power generation and related energy infrastructure projects. Its global operations include operating, construction, development, and environment and technology projects. The company has offices in the United Kingdom, Philippines, Mexico, Australia and Singapore. InterGen Netherlands was founded in 1995 and is headquartered in Rotterdam, the Netherlands.

InterGen Services, Inc. owns and operates power plants. It services include power generation, energy products and services, operations and maintenance, asset management, energy project development and acquisitions & management. The company was founded in 1995 and is headquartered in Burlington, MA.