Gary Bullen, UK President BGIS said: “BSM has a strong reputation of delivering quality national mobile and specialist services to its customers.

“This acquisition is an exciting step forward for our commitment to our customers through the addition of circa 100 highly capable, effective and responsive engineers with a strong support team.”

Paul Burton, Chairman & CEO, Briggs & Forrester Group added: “The sale of BSM follows a five-year period of strategic change in which BSM has grown significantly, providing a consistent high level of performance.

“Clear synergy was evident with BGIS and we are mutually aligned with an employee focused ethos.

“The sale provides BSM with new ownership and investment to move the business forward further, whilst Briggs & Forrester Group will concentrate on its core contracting activities across the UK, with a stronger balance sheet that will support investment within the Group.”

Latest results for Briggs & Forrester for the year to October 2023 showed the BSM business topping £20m turnover for the first time contributing to total revenue of £213m.