Aggreko has appointed Heath Drewett as chief financial officer.
He will succeed Carole Cran who tendered her resignation in June in order to become CFO of Forth Ports.
Aggreko said: 'Heath is an experienced finance professional, working in the engineering, leisure, transportation and industrial sectors.
'He was the Group Finance Director at WS Atkins plc where, following the acquisition of WS Atkins by SNC-Lavalin, he was most recently appointed President.'
The company said he would join the board and the executive team once he has completed his commitments with SNC-Lavalin, which was expected in the first quarter of 2018.
Cran will be leaving Aggreko on 31 Dec.