Green Investment Group Limited (GIG) is a specialist in green infrastructure principal investment, project delivery and the management of portfolio assets, and related services. Its track record, expertise and capability make it a global leader in green investment, dedicated to supporting the growth of the global green economy. The business was launched initially by the UK Government in 2012 as the first institution of its type in the world. The organization was acquired by Macquarie Group in 2017, creating one of Europe’s largest teams of dedicated green infrastructure investors, and now operates under the name Green Investment Group.