Details of the large win have not been released but the project is understood to be for a major energy from waste scheme in North London worth more than £50m.
Among the other orders, which lift Billington materially ahead of the previous record in the first quarter of last year, the firm also has a job for the food manufacturing sector and another in retail distribution.
The project will be delivered nationally over the next 24 months.
Mark Smith, chief executive officer of Billington, said: “The award of these significant contracts is great news for Billington. They are a testament to our group offering in a challenging trading environment.
“The group currently has a record order book and these contracts provide further confidence that Billington will continue to perform well in 2024 and into 2025, further underpinning current market expectations.”