Mott MacDonald purchased Fulcrum Consulting in 2009 as a way of expanding its sustainable energy consultancy in the building sector. Fulcrum was a building services engineer consultancy and a founding member of the UK Green Building Council, specializing in green and eco-friendly engineering and design. Fulcrum was responsible for projects such as the Darwin Centre and considered a pioneer of low-energy building techniques. MacDonald also expanded to open principal offices in Turkey, Kazakhstan, Albania, and Serbia while opening smaller offices in throughout Africa. It also purchased Merz & McLellan, a South African electrical engineering consultancy. 2009 also marked the opening of Mbombela Stadium, a stadium in South Africa for which Mott MacDonald designed the roof. In 2010 it added South African healthcare and development specialist HDA, and Australian engineering consultancy Hughes Trueman to its portfolio. In 2011 Mott MacDonald purchased Australian firm Mortimer Project Management and opened an office in Auckland, New Zealand.