The biggest potential deal was the revelation the group had won a place on the Department of Health's Procure22 framework - a contract which could be worth £4bn alone.
Procure22 is the third version of the NHS's procurement framework that establishes six principle supply chain partners. It comes into force in October and will last for four years. The framework establishes the partners as the go-to construction companies for NHS social care and capital schemes in the UK.
Kier said it had delivered health projects worth over £170m in the last 12 months.
“These awards demonstrate the breadth of our offering and the strength of our relationships with clients across a wide range of sectors, including healthcare, aviation and education," said chief executive Haydn Mursell.
The Gatwick work relates to the provision of smaller projects, each up to a value of £10m as well as building projects up to £1.5m.
"Such awards account for approximately half of our UK regional building revenues,” said Mursell in summary of the three work wins.
Shares in the construction group rose over four per cent in morning trading.