Octopus Energy is a London-headquartered energy retailer, generator, and software provider founded in 2015 as a subsidiary of Octopus Group, one of the UK's largest specialist asset managers.
The group supplies gas and electricity to millions of customers across the UK, the United States, Germany, France, Italy, Spain, Japan, Australia, and New Zealand, and licenses its customer-service and tariff platform Kraken to other utilities including E.ON Next, Origin Energy, and Good Energy.
Octopus Energy was an early adopter of time-of-use tariffs, smart-meter-driven products, and heat-pump installation via its Octopus Energy Services arm. The ultimate UK holding vehicle is Octopus Energy Group Limited, sitting beneath the broader Octopus Group structure.
External shareholders include Origin Energy, Tokyo Gas, Generation Investment Management, and the Canada Pension Plan Investment Board, and the 2024 primary funding round valued the group at more than $9 billion, making it one of Europe's most valuable private companies.
Octopus Energy demonstrates how modern UK private-company structures can host both a regulated utility, a software business, and international expansion under one cap table. The UK parent, Octopus Energy Group Limited, is registered at Companies House (09263424) and sits within the wider Octopus Group ecosystem, which also includes Octopus Investments, Octopus Real Estate, and Octopus Ventures.
For British users researching UK filings, this matters because the "Octopus" brand spans multiple separately regulated businesses: Octopus Energy Ltd (the Ofgem-licensed UK energy supplier), Octopus Renewables Ltd, Octopus Energy Generation Ltd, Kraken Technologies Ltd (the SaaS platform), and Octopus Electric Vehicles Ltd.
Each entity publishes its own statutory accounts at Companies House, and the group publishes a voluntary consolidated report to satisfy stakeholder scrutiny.
Octopus has issued multiple rounds of equity to strategic and financial investors using preference and convertible instruments that are filed as share-capital resolutions at Companies House. Unlike a typical VC-backed tech company, the regulated utility sits under Ofgem's supplier licence regime, with obligations on capital adequacy, customer-balance handling, and the Renewables Obligation.
A future IPO has been widely discussed; any listing vehicle would almost certainly be a UK plc re-registration of the existing Octopus Energy Group Limited, with Kraken potentially carved out as a separate SaaS listing.
Yes. Octopus Energy Group Limited sits within the wider Octopus Group family of businesses, which also includes Octopus Investments and Octopus Real Estate, though Octopus Energy has its own distinct cap table and investor base.
No. Octopus Energy Group Limited remains privately held, with a 2024 round reportedly valuing the group at more than $9 billion; an IPO has been publicly discussed but not scheduled.
Kraken is Octopus's proprietary customer-service and tariff platform, operated through Kraken Technologies Ltd and licensed to other utilities; it is fully owned by the group.
Statutory accounts for Octopus Energy Group Limited and each UK operating subsidiary are filed at Companies House under their respective registration numbers and are publicly searchable.
