EnerMech has signalled it’s about to step up international expansion with the appointment of mergers and acquisitions expert Ingrid Stewart. Mrs Stewart has joined the mechanical engineering group from investment bank Simmons & Company International where she was a director specialising in corporate finance. A chartered accountant, she takes on the newly created role of Corporate Development Director, as the Aberdeen-based oil and gas services company embarks on a new phase of acquisitions and strategic joint ventures.