About
Who is M&S Energy?
Registered as M&S Energy (white-label brand), M&S Energy uses this legal name for Ofgem licence filings, contracts and any formal communications. The trading name customers see on bills is the shorter, more recognisable form.
M&S Energy was founded in 2008. The supplier operated under a domestic-supply licence until its closure, with a track record of customer service and billing publicly documented for the years it traded.
M&S Energy is part of the Marks & Spencer plc (brand owner); Octopus Energy (supply partner from 2018) group, which provides shared governance, financial backing and a broader pool of expertise in trading, hedging and regulatory work.
The company is regulated by Ofgem, the UK's energy regulator, and its complaint handling falls under the Energy Ombudsman alternative dispute resolution scheme.