Stephen Fitzpatrick - Ovo Group Ltd OVO Energy, founded in 2009, is one of the UK’s leading independent energy suppliers, committed to driving sustainability and reducing carbon emissions. Absolute Turnover Growth: £593,398,000 Region: London Sector: Financial Services 9. Absolute Turnover Growth: £450,959,000 Region: London Sector: Business Consulting and Services 13. Absolute Turnover Growth: £151,662,000 Region: London Sector: Financial Services 73. …