City Electric Supply (CES) announced today that after 15 years of exemplary leadership as Chief Executive Officer, Thomas Hartland-Mackie has stepped into a new role and will now serve as the Executive Chairman of CES and City Electrical Factors (CEF), the company's U.K. sector, to support their growth through high-level strategy and culture. Hartland-Mackie will remain as the CEO of Labora Group, the family holding company, to focus on its continued growth.