Certified B Corporation

City of London, United Kingdom

Certified Since

May 2016


Other renewable energy installation


Service with Minor Environmental Footprint

Operates In



United Kingdom,

United States


Bulb is the fastest-growing company in Europe, providing 100% renewable electricity to homes across the UK, France, Spain and Texas and 100% carbon neutral gas in the UK. We’re on a mission to help 100 million people lower their bills and their carbon emissions by 2030 so we supply green energy as standard, with fair, transparent pricing, and technology to help our members manage and reduce their energy use. We were the first energy supplier in the UK to become a certified B Corp and are proud to be working to show how business can be a force for good. And when a new member chooses to join Bulb, we donate £2 to the Bulb Foundation, fighting to address the climate crisis.

Overall B Impact Score

Based on the B Impact assessment, Bulb earned an overall score of 94.3. The median score for ordinary businesses who complete the assessment is currently 50.9.
94.3 Overall B Impact Score
80 Qualifies for B Corp Certification
50.9 Median Score for Ordinary Businesses

Governance 16.3

The Governance Impact Area evaluates a company's overall mission, engagement around its social and environmental impact, ethics, and transparency. This section also evaluates the ability of a company to protect their mission and formally consider stakeholders in decision making through their corporate structure (e.g. benefit corporation) or corporate governing documents.

Mission & Engagement1.0
Corporate Accountability1.6
+ Mission Locked7.5

What is this? A company with an Impact Business Model is intentionally designed to create a specific positive outcome for one of its stakeholders - such as workers, community, environment, or customers.

Workers 33.0

The Workers Impact Area evaluates a company's contributions to its employees' financial security, health and safety, wellness, career development, as well as overall engagement and satisfaction. In addition, this section recognizes business models designed to benefit workers, such as companies that are at least 40% owned by non-executive employees and those that have workforce development programs to support individuals with barriers to employment.

Compensation & Wages7.6
Training & Education1.2
Worker Ownership6.1
Management & Worker Communication3.3
Job Flexibility/Corporate Culture1.5

Community 19.6

The Community Impact Area evaluates a company's engagement with and impact on the communities in which it operates, hires from, and sources from. Topics include diversity, equity, and inclusion; economic impact; civic engagement; charitable giving; and supply chain management. In addition, this section recognizes business models that are designed to address specific community-oriented problems, such as poverty alleviation through fair trade sourcing or distribution via microenterprises, producer cooperative models, locally focused economic development, and formal charitable giving commitments.

Job Creation4.7
Diversity & Inclusion3.0
Civic Engagement & Giving4.4
Local Involvement4.5
Suppliers, Distributors & Product2.8

Environment 25.3

The Environment Impact Area evaluates a company's overall environmental management practices as well as its impact on the air, climate, water, land, and biodiversity. This includes the direct impact of a company's operations and, when applicable, its supply chain and distribution channels. This section also recognizes companies with environmentally innovative production processes and those that sell products or services that have a positive environmental impact. Some examples might include products and services that create renewable energy, reduce consumption or waste, conserve land or wildlife, provide less toxic alternatives to the market, or educate people about environmental problems.

Land, Office, Plant3.7
+ Environment Products & Services Introduction0
+ Renewable or Cleaner-burning Energy16.8

What is this? A company with an Impact Business Model is intentionally designed to create a specific positive outcome for one of its stakeholders - such as workers, community, environment, or customers.

Customers 0.0

The Customers Impact Area evaluates a company's stewardship of its customers through the quality of its products and services, ethical marketing, data privacy and security, and feedback channels. In addition, this section recognizes products or services that are designed to address a particular social problem for or through its customers, such as health or educational products, arts and media products, serving underserved customers or clients, and services that improve the social impact of other businesses or organizations.

Previous Overall B Impact Scores

2018 Overall B Impact Score94.3
2016 Overall B Impact Score99.1

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