Below we have listed every UK energy supplier in the domestic market, along with the % of the market they hold as of March 2021.
Source: OFGEM: https://www.ofgem.gov.uk/data-portal/electricity-supply-market-shares-company-domestic-gb
List of All UK Energy Suppliers 2021 (Domestic Only)
Rob
Rob runs Energy-Review.co.uk. The project initially began when he switched energy suppliers for the first time and found there wasn't a website that provided simple, data backed reviews on all the suppliers available. Since then, Rob has spent considerable time looking at all publicly available data about each supplier and writing reviews using this information. Reviews are updated as regularly as possible and any data is backed up by a source where necessary. If you find any issues, please use our contact form to let us know.