About Bulb
Bulb is an Energy & Utilities company based in London (United Kingdom) founded in 2014, and was acquired by Octopus Energy in October 2022. Renewable gas and electricity are supplied online in the UK. Bulb has raised $91.47 million across 6 funding rounds from investors including Octopus Energy, Magnetar Capital and DST Global Partners. The company has 4 employees. Bulb was last valued at $549.86 million in June 2018. Its focus areas include Energy Tech, Smart Grid, Green Utilities and Environment Tech. Its legal entity is BULB ENERGY LTD. Its competitors include Octopus Energy, OVO Energy and EDF Energy; 2 of its 3 listed competitors have raised funding.
Company details
Bulb was founded in 2014 and is headquartered in London, United Kingdom. Operations focus on the renewable energy sector, where renewable gas and electricity are provided to customers through an online platform. Competition is offered against established utility providers with 100 renewable electricity sourced via one variable tariff and one fixed tariff. Simplification of the supply chain is achieved through technology improvements and wholesale price adjustments.
- Headquarters London, United Kingdom
- Employees 4
- Stage Acquired
- SectorsEnergy & Utilities
- Emailβ’β’β’β’β’β’β’β’
- Phoneβ’β’β’β’ β’β’β’β’
- Website bulb.co.uk
- Social LinkedIn X Facebook
- Acquired by Octopus Energy (Oct 2022)
- Legal Name Bulb Energy Ltd
- Date of Incorporation 02 Apr, 2013
- Jurisdiction BIRMINGHAM
- Annual Revenue$1.93 B (USD)85as on Mar 31, 2020
- Total Equity Funding$91.47M (USD)
in 6 rounds
- Latest Funding Round$80.34M (USD), Series B
Jun 2018
- InvestorsOctopus Energy
& 3 more
- Employee Count4
- Acquired byOctopus Energy
(Oct 2022)
Funding Insights of Bulb
Bulb has successfully raised a total of $91.47M across 6 strategic funding rounds. The most recent funding activity was a Series B round of $80.34 million completed in June 2018. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $91.47M
- Total Rounds 6
- Last Round Series B β $80.34M
- First Round $230,825
(Feb 2015)
- Investors Count 3
All 6 funding rounds of Bulb with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Jun 2018 | $80.34M | Series B | $549.86M | Magnetar, DST Global | β |
| Sep 2017 | $1.84M | Series A | β | JamJar Investments | β |
| Apr 2017 | $7.33M | Series A | $22.27M | β | β |
| Oct 2016 | $60,919 | Seed | $β’β’β’β’β’ | β | β |
| Jul 2015 | $1.67M | Seed | $β’β’β’β’β’ | β | β |
| Feb 2015 | $230,825 | Seed | $β’β’β’β’β’ | β | β |
| Date | Valuation | Stage |
|---|---|---|
| Jun 2018 | $549.86M | β’β’β’β’β’β’β’β’ |
| Apr 2017 | $22.27M | β’β’β’β’β’β’β’β’ |
| Oct 2016 | $β’β’β’β’β’ | β’β’β’β’β’β’β’β’ |
| Jul 2015 | $β’β’β’β’β’ | β’β’β’β’β’β’β’β’ |
| Feb 2015 | $β’β’β’β’β’ | β’β’β’β’β’β’β’β’ |
Full valuation and stage history of Bulb
Every valuation point, the growth-stage changes (minicorn, soonicorn, unicorn) and the dates behind them require an active premium plan.
- All valuation points
- Stage changes
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Verified entity values are shown only after access is granted.
Last known valuation $549.86M (Jun 2018). 4 investors in total: 4 institutional.
Investors in Bulb
Bulb has secured backing from 4 investors, including venture fund and institutional investors. Prominent investors backing the company include Octopus Energy, Magnetar Capital and DST Global Partners.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Magnetar Capital is engaged in alternative asset management. | magnetar.com | Evanston, United States | ||
Venture capital investment firm | dst-global.com | Menlo Park, United States | ||
Early-stage tech startups are funded by this venture capital firm. | jamjarinvestments.com | London, United Kingdom | ||
Utility bill management platform is provided for tracking and billing. | 2015 | octopus.energy | London, United Kingdom |
Investor details for Bulb
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
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Timeline of Bulb
5 dated milestones of Bulb across 8 years, from founding to its latest funding, stage changes and deals.
- Founded Bulb is founded.
- Funding First funding round of $231K.
- Milestone Reaches Minicorn status.
- Funding Latest funding round, Series B, of $80.3M.
- Exit Acquired by Octopus Energy.
Competitors of Bulb
Bulb has 3 listed competitors in our database, 2 of them funded. They include Octopus Energy, OVO Energy and EDF Energy.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| octopus.energy | 2015 | London, United Kingdom | $2.81B | 8,177 | Utility bill management platform is provided for tracking and billing. | |
| ovoenergy.com | 2009 | Bristol, United Kingdom | $257.69M | 1,115 | Renewable energy is supplied via app-based platform by OVO Energy. | |
| edfenergy.com | 2010 | London, United Kingdom | Electric utility company |
Detailed competitors of Bulb
The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.
- Full competitor set
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Web traffic of Bulb
The website of Bulb (bulb.co.uk) receives about 7.5K visits a month.
- Monthly visits7.5K
▲ 272.1% vs previous month
Top companies in Smart Grid & Transmission Systems
3 companies that operate in the same segment as Bulb (Smart Grid & Transmission Systems) in United Kingdom, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Utility bill management platform is provided for tracking and billing. | 2015 | London, England, United Kingdom | USD 2.81 B | USD 17.62 K | 5,752 | |
Renewable energy is supplied via app-based platform by OVO Energy. | 2009 | Bristol, England, United Kingdom | USD 257.69 M | USD 1.25 B | 3,191 | |
Distributed energy grids are provided for clean electricity and utilities. | 2010 | London, England, United Kingdom | USD 130.7 M |
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Related news about Bulb
Complete news archive for Bulb
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Frequently Asked Questions about Bulb
Bulb was founded in 2014 and raised its 1st funding round 1 year after it was founded.
Bulb is headquartered in London, United Kingdom. It is registered at London, England, United Kingdom.
Bulb is a funded company, having raised a total of $91.47M across 6 funding rounds to date. The company's 1st funding round was a Seed of $230.83K, raised on Feb 2015.
Bulb has 4 employees.
Annual revenue of Bulb is $1.93B as on Mar 31, 2020.
Bulb was founded in 2014 and is headquartered in London, United Kingdom. Operations focus on the renewable energy sector, where renewable gas and electricity are provided to customers through an online platform. Competition is offered against established utility providers with 100 renewable electricity sourced via one variable tariff and one fixed tariff. Simplification of the supply chain is achieved through technology improvements and wholesale price adjustments.
Bulb's top competitors include Octopus Energy, OVO Energy and EDF Energy.
Bulb has 4 investors. Key investors include Octopus Energy, Magnetar Capital, DST Global Partners, and JamJar Investments.
The valuation of Bulb is $549.86M as of Jun 2018.
Bulb operates through Bulb Energy Ltd.
Yes. Bulb was acquired by Octopus Energy in October 2022.

