Mark A. Weidman

Wheelabrator Technologies, Inc. engages in the provision of waste management services. It offers municipal solid waste, commercial and industrial waste, special waste, metals recovery and recycling, and ash management services. The company was founded in 1908 and is headquartered in Portsmouth, NH.

Synagro Technologies, Inc. engages in recycling of organic by-products. Its products include granulite fertilizer pellets, lime, and renewable fuel. It serves the municipalities, farmers, and communities. The company was founded in 1986 and is headquartered in Baltimore, MD.

ProPhotonix Ltd. engages in the design and manufacture of illumination systems. It operates through the following segments: Light Emitting Diode Systems (LED's) and Laser and Diodes. The LED's segment designs and manufactures LED systems for the inspection, machine vision, medical and military markets. The Laser and Diodes segment distributes laser diodes and designs and manufactures custom laser diodes modules for industrial, commercial, defense and medical applications. The company was founded on March 27, 1951 and is headquartered in Salem, NH.

Asian Atlantic Industries, Inc. is a private company that wholesales electronics components. The company is based in Stratham, NH and has subsidiaries in the United States.

Harvest Power, Inc. develops, builds, owns, and operates facilities that produce renewable energy and compost from discarded organic materials. The company was founded by Nathan R. Gilliland, Paul C. Sellew, Jan P.E. Allen, A. Paul McMenemy, and Wayne H. Davis in 2008 and is headquartered in Waltham, MA.

Part of Helios Underwriting Plc, Nomina No 380 LLP provides underwriting services. The company is based in London, UK. The British company was founded in 2007. Nomina No 380 was acquired by Helios Underwriting Plc on January 17, 2014 for $0.98 million.

True North Venture Partners LP seeks to invest in companies located in the US. The fund targets companies operating in the fields of energy, water, agriculture and waste. It provides financing for early and later stage capital requirements with an investment size of $0.1 million to $25 million.

Birch Tree Environmental Group LLC provides business consulting services. The private company is based in Portsmouth, NH. The company was founded by Mark A. Weidman.