A Birmingham-headquartered engineering firm has accelerated its strategic growth with several senior appointments. And the move coincides with an overall boost in employment which has seen the business employ over 50 new employees since the start of the year. The multi-disciplined adi Group, which covers a broad range of sectors including aerospace and defence, automotive, food and beverage and manufacturing markets, has recently taken on twelve new senior figures at the company, bolstering its +30 divisional offering.