51. SSE Airtricity
- Managing director: Stephen Wheeler
- Pre-tax profit: £6.9m
- Employment: 60
- Pay bill: £1.3m
SSE is Northern Ireland’s second largest energy utility and provider of renewable power. SSE Airtricity provides greener electricity, natural gas and energy-related services to home and business customers.
SSE is also the third largest energy generator by capacity in the all-island Single Electricity Market, with over 1,800MW of thermal and renewable energy generation in operation.