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Porterbrook Leasing Co. Ltd. provides leasing services. The firm engages in the leasing of all types of railway rolling stock and associated equipment. It offers lease options to suit the full spectrum of requirements. The company was founded in April 1994 and is headquartered in Derby, the United Kingdom.

Kemble Water Holdings Ltd. engages in the supply of water and wastewater services. The company was founded on May 17, 2006 and is headquartered in Reading, the United Kingdom.

Optrust Private Equity (Optrust) is a private equity firm subsidiary of OpTrust Private Markets Group founded in 2006. The firm is headquartered in Toronto, Canada.

Partnerships for Renewables Ltd. develop, construct and operate renewable energy projects. It focused on a development process tailored to the specific needs of the public sector. The firm provides a way for public sector bodies to access the economic and environmental benefits associated with renewable energy and contribute towards the fight against climate change without diverting public sector resources away from frontline services. The company was founded in 2006 and headquartered in London, The United Kingdom.

Globalvía Inversiones SA engages in the management, promotion, development, and exploitation of public, national, as well as foreign infrastructures. The company was founded in 2007 and is headquartered in Madrid, Spain.

Bruc Management Projects SL is a holding company. It is engaged in the provision of administration, management, consulting and advisory services of an accounting, financial, tax, legal, labor and administrative nature. The company was founded on September 30, 2015 and is headquartered Madrid, Spain.