Siemens Pakistan Engineering Company Limited is the largest employer of engineering graduates Pakistan. It works primarily in the energy, industry and health care sectors. The company is among the top 25 companies of the country and has won several awards including the prestigious CSR award from the employers federation of Pakistan. Siemens was the O&M partner for the electric power utility in Karachi and worked to overhaul the aging system. This contract was however terminated, allegedly due to non-cooperation and inability to stabilize the current system.