Outsourcer Babcock has warned that revenues will grow at a slower rate than expected but profits will be in line as it seeks to distance itself from turmoil in the sector.

Babcock's portfolio includes deals to service equipment and train personnel for the British military, maintain nuclear plants and provide aircraft services such as helicopters to the offshore oil industry and air ambulances.

However, the mid-cap business has been caught up in the wider fear around the outsourcing sector following the implosion of Carillion, problems at Capita and concerns about others such as Interserve.

An assessment of the Ministry of Defence’s long-term equipment plan last week revealed a potential £21bn funding hole, raising further worries about suppliers such as Babcock.

However, chief executive Archie Bethel dismissed concerns Babcock faced problems which ultimately took down Carillion.

"We are a very different business to Carillion, Capita and Interserve," he said. "Of our £5.4bn annual revenues services like outsourcing facilities management they did can't be more than 20pc of that. We're an engineering company.