Centrica plc specializes in natural gas and electricity distribution. The activity is organized around three sectors:
- gas and electricity sales to businesses;
- natural gas and electricity sales to individuals (British Gas; British No. 1). The group also provides installation services for urban central heating (British No. 1), air conditioning, and security systems;
- exploration and production of hydrocarbons.
Net sales are distributed geographically as follows: the United Kingdom (83.9%), Ireland (5.4%), Scandinavia (3.5%) North America (1.5%) and other (5.7%).