35 WOMEN UNDER 35 2016: Louise Hall, 28

As commercial services manager at the Environment Agency, Hall’s job is to ensure its £300m contract with Thames Estuary Asset Management 2100 – a flood risk management scheme, which protects 1.25 million people and £200bn of property – is delivered safely, to cost and to contract. She was twice shortlisted for Project Manager of the Year at the Women in Construction Awards.