Balfour Beatty has a carbon footprint of 307,000 tonnes of CO2 from its global operations, (excluding the US).
Last year it won the BREEAM Bespoke award for the Matthew Hay Building, University of Aberdeen. The design incorporates a rainwater harvesting system, low-carbon technologies and passive renewables.
The company also worked on a joint waste reduction project with Skanska to widen the M1 near Luton. It recycled one million tonnes of waste concrete and aggregates, which was 93 per cent of the material needs of the project. Some 800,000 tonnes of waste was diverted from landfill and £3 million was saved.
In 2008, it set up the Building Better Futures charitable fund to help disadvantaged young people and it has also committed to fund five disability learning centres for Action for Children.
Staff: 40,000 worldwide
Annual turnover: £9.5 billion
Highlights: Saved £3 million diverting waste from landfill on M1 project with Skanska.