Bulb Energy Ltd,[3] trading as Bulb, was an energy supply company in the United Kingdom acquired by Octopus Energy in 2022. Founded in 2013, the company attracted venture capital from DST Global and Magnetar Capital and ran at a financial loss while achieving rapid growth in customers.[4] Bulb claimed to provide electricity and gas from renewable or off-set sources. As of November 2021, it had a share of approximately 5-6% of the UK energy market and was considered the seventh largest in the country.
In September 2021, the company sought a bailout due to financial problems caused by increasing natural gas prices. Instead, it was placed into the Energy Supply Company Administration (a special administration regime) by industry regulator Ofgem on 24 November 2021 following a refusal by investors to provide further funding. While customers of other failed suppliers have been transferred by Ofgem to new suppliers, the regulator decided Bulb was too large, so it became the first energy company in the UK to enter special administration.
In October 2022, Octopus Energy announced they planned to acquire Bulb's 1.5 million customers and 650 staff. The acquisition was completed on 21 December 2022.