Large suppliers

  • Press Releases

    Challenger energy suppliers join the “Big Six”

    Research from Cornwall Insight’s Domestic market share survey for the first quarter of 2020 shows a shake-up of the rankings that is unprecedented in the survey since its launch. The completed merger of OVO Energy and SSE and organic growth from Bulb have seen the names of challenger brands sit...

  • Press Releases

    One in four customers leave a small or medium energy supplier every year

    Customers are now actively encouraged to switch to get the best deal possible deal, as a result of this suppliers are now experiencing less loyalty and more customers shopping around. Latest research from Cornwall Insight’s most recent domestic market share data illustrates a trend of rising customer churn – or...