Pure Leapfrog
Pure Leapfrog is a UK sustainability charity providing consultancy, project development, and retrofit advisory services to community energy groups, private rented sector landlords, and vulnerable households. It operates the Let Zero retrofit one-stop-shop and a national energy advice service for mortgage prisoners.
- Company typePrivate
- Founded2005
- HeadquartersLondon, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Pure Leapfrog does
Pure Leapfrog is a UK-registered charity (Charity No. 1112249) and Company Limited by Guarantee (Company No. 05534395), operating since 2005 from London and Sheffield. It provides advisory, consultancy, and project delivery services across three intersecting themes: community energy development, buildings and retrofit, and carbon and nature. The organisation supports community energy groups, cooperatives, and CICs with feasibility studies, legal structuring, financial modelling, grid connection, and statutory consent navigation — having enabled 90 MW of renewable energy and £15m+ in community benefit funds across 70+ projects.
Its service portfolio includes Let Zero (the UK's first retrofit one-stop-shop for the Private Rented Sector, currently in a South Yorkshire-based growth phase), the Energy Advice Line for Mortgage Prisoners (a free national service co-delivered with UK Mortgage Prisoners), the Diocesan Community Energy Model with the Diocese of Bath & Wells, and ongoing support for community solar projects such as the 637kWp Heights Quarry scheme and the 2.5MW Wildersmoor Hall Farm development. Customers include local authorities (South Yorkshire Mayoral Combined Authority, Warrington Borough Council), dioceses, community energy CICs, and vulnerable individual households.
Revenue is generated through a mix of paid consultancy services and government/grant funding (Innovate UK, DESNZ via North West Net Zero Hub, Great British Energy Community Fund, Energy Industry Voluntary Redress Scheme), supplemented by online donations. The technology stack is third-party — Microsoft 365, SharePoint, Lovable CRM, and Sipgate — with one bespoke tool, the Navigator retrofit project management platform co-developed with Bravand for Let Zero service delivery. PL Bridge Finance, a £20m revolving loan facility previously capitalised by Big Society Capital, was divested to Social and Sustainable Capital in 2020.
Pure Leapfrog firmographics
Firmographics- Name
- Pure Leapfrog
- Legal name
- Pure Leapfrog
- Website
- https://pureleapfrog.org
- Company type
- Private
- Founded year
- 2005
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Pure Leapfrog is a UK sustainability charity providing consultancy, project development, and retrofit advisory services to community energy groups, private rented sector landlords, and vulnerable households. It operates the Let Zero retrofit one-stop-shop and a national energy advice service for mortgage prisoners.
- Ownership category
- akta.pro rank
Where Pure Leapfrog is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices3 records
Markets served
Pure Leapfrog business model
Business model- GTM type
- B2B
- Offering type
- Services
Revenue model
- Consultancy Services: Pure Leapfrog offers paid consultancy services to community energy groups to design, develop, and finance their projects. Services include modelling, legal and financial support, business case development, and personalised guidance from experienced professionals.
- Government and Grant Funding: The organisation receives grant funding from government sources including Innovate UK (for Let Zero pilot), Department for Energy Security and Net Zero through North West Net Zero Hub (Retrofit for Lets), Great British Energy Community Fund (Diocesan Community Energy Model), and Energy Industry Voluntary Redress Scheme (Energy Advice for Mortgage Prisoners).
- Donations: The organisation accepts donations through Stripe, PayPal, and GoCardless on their website to support vital work creating a more sustainable world.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Pay-as-you-go | Free Energy Advice Service for Mortgage Prisoners |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels4 records
Pure Leapfrog product offering
Product offeringCore offering
Pure Leapfrog is a sustainability consultancy and project delivery organisation that develops community-owned renewable energy projects, delivers whole-house retrofit services through its Let Zero one-stop-shop for landlords, and provides energy advice for vulnerable consumers such as mortgage prisoners. The organisation combines technical, financial, and community engagement expertise to take renewable and retrofit projects from initial concept through to construction and operation.
Product overview
Pure Leapfrog is a sustainability consultancy and project delivery organization, not a software product company. It offers a portfolio of consulting and advisory services including community energy project development (feasibility, business case, financial modeling, legal structuring, stakeholder engagement, grid connections, statutory consents, project finance), building retrofit support services, and energy advice services. The services are delivered through direct consultancy engagements, partnerships with local authorities, and operational programs rather than a unified software product platform. No distinct commercial software products, SaaS platforms, APIs, or packaged product offerings have been identified in the source materials.
Differentiator
Problem solved
Functional benefit
Brands
- Let Zero: The UK's first retrofit support service designed specifically for the private rented sector. A One Stop Shop service helping landlords navigate home energy/retrofit improvements.
- PL Bridge Finance
Products and services
- Community Energy Project Development
- Let Zero Retrofit One-Stop-Shop Whole-house retrofit service for private rented sector landlords providing a single point of contact from initial survey and pre-screening through to design, coordination of works, and installation oversight.
- Energy Advice for Mortgage Prisoners Free, grant-funded telephone energy advice service for mortgage prisoners and other vulnerable consumers, providing energy efficiency and energy-related guidance.
- LEAD Retrofit for Lets Programme Demonstrator retrofit programme for the private rented sector, showcasing whole-house retrofit delivery models and gathering evidence to support sector-wide scaling.
- Diocesan Community Energy Model Consultancy and delivery model for dioceses and religious institutions seeking to develop community energy and retrofit projects across their property portfolios.
Quantifiable outcome
- 90 MW of renewable energy enabled through community energy projects
- +5 more outcomes
Companies that use Pure Leapfrog
Customer profileNamed customers6 records
Segments5 records
Ideal customer profiles5 records
Pure Leapfrog technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Pure Leapfrog partnerships and signals
Strategic signalPartnerships
15 partnerships are on record, tiered core, support and minor.
- Diocese of Bath & WellscoreWorking with the Diocese of Bath & Wells to develop a practical, replicable model enabling Dioceses to unlock assets for renewable energy generation. The feasibility study maps governance structures, assesses technical viability, and co-designs delivery models with parishes and communities. The Church of England's national Net Zero team has endorsed the approach.
- UK Mortgage PrisonerscoreCollaboration to establish a national energy advice service tailored to mortgage prisoners. UKMP provides deep lived experience, trust, and connections to beneficiaries while Pure Leapfrog provides trained energy advisors, retrofit expertise, project management, and service design capability.
- Weardale Renewable Energy CICcorePure Leapfrog provides expert support in legal structuring, business planning, and financial modelling for the 637kWp community solar farm project on disused limestone quarry in Weardale.
- UrbanChaincoreLicensed energy supplier specialising in half-hourly matching of generation to load. Partnered with Pure Leapfrog and Lymm Community Energy to explore platforms for facilitating multiple sleeves or private market arrangements for community energy projects.
- Warrington Borough CouncilcoreKey partner in the Retrofit for Lets Local Area Advice Demonstrator (LEAD) project, providing access to landlord networks and local authority engagement channels.
- South Yorkshire Mayoral Combined AuthoritycoreLed the pilot phase of Let Zero and is now partnered for the growth phase, providing funding and strategic support for expansion of the UK's first retrofit one-stop-shop for the private rented sector.
- Building Research Establishment (BRE)coreSpecialist partner in the Let Zero pilot phase bringing building science expertise and quality assurance frameworks.
- BravandcoreTechnology partner that co-developed the Navigator retrofit project management platform used in Let Zero service delivery.
- SipgatesupportPhone service provider for the Energy Advice Line for Mortgage Prisoners, including AI-powered call analysis, automated transcription, and quality monitoring.
- LovablesupportCRM system provider (SOC 2 Type 2 and ISO 27001:2022 certified) used for client management and case file storage.
- Azurean ConsultingminorKey partner in the Retrofit for Lets project providing consulting expertise on energy efficiency barriers in the private rental sector.
- Association for Decentralised EnergyminorKey partner in the Retrofit for Lets project contributing expertise on decentralised energy solutions.
- Durham County CouncilcoreCollaborative partner in the Heights Quarry community solar project, providing local authority support and alignment.
- Sheffield Hallam UniversitycoreAcademic partner in the Let Zero pilot, contributing research and evaluation expertise.
- University of Sheffield - Advanced Manufacturing Research CentrecoreAcademic partner in the Let Zero pilot contributing technical expertise in manufacturing and research.
Scale indicators9 records
Recent moves8 records
Expansion highlights5 records
Pure Leapfrog competitors and assessment
Company assessmentBroad incumbents
- Energy Saving Trust: Larger, well-established UK charity delivering energy efficiency advice, retrofit programmes, and low-carbon transport services nationwide — overlapping heavily with Pure Leapfrog's retrofit and energy advice offerings but at much greater scale.
- Carbon Trust: Established sustainability and carbon advisory organisation offering consultancy, certifications, and funding access — comparable to Pure Leapfrog's sustainability consultancy and grant navigation capabilities but at far greater scale and with commercial clients.
- National Energy Action: UK's leading fuel poverty charity, providing energy advice, policy advocacy and training — directly comparable to Pure Leapfrog's Energy Advice Line for Mortgage Prisoners but operating across a broader beneficiary base nationally.
Emerging players
- Repowering London: London-based community energy charity developing community-owned solar and energy projects with a strong focus on energy democracy — a closely aligned but smaller-scale peer in the same community energy space.
Direct peers
- Centre for Sustainable Energy: Bristol-based charity delivering community energy project development, domestic energy advice, and local authority retrofit programmes across the UK — the closest direct analogue to Pure Leapfrog's combined community energy and energy advice model.
- Severn Wye Energy Agency: UK charity providing consultancy, project development and grant support for community-owned renewable energy and low-carbon building projects, directly comparable in mission and service mix to Pure Leapfrog's community energy work.
Others
- Building Research Establishment (BRE): UK building science organisation providing retrofit standards, certification (e.g., PAS 2035) and quality assurance — a known Let Zero partner and ecosystem enabler comparable in adjacent retrofit expertise though operating at much greater scale.
- Social and Sustainable Capital: Social impact investor that acquired PL Bridge Finance from Pure Leapfrog in 2020 — directly connected through the bridge finance transaction and operating in adjacent social/environmental lending markets.
- Community Energy England: Trade body representing community energy organisations across England — directly connected to Pure Leapfrog's core sector and useful as an ecosystem comparator and potential partner/customer channel.
Regional players
- Marches Energy Agency: Shropshire/Herefordshire-based community energy and energy advice charity — a regional analogue delivering similar community energy development and household energy advice services in a different UK geography.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key highlights6 records
Customer concentration
Pure Leapfrog social profiles
Digital presencePure Leapfrog compliance and trust
Trust signalCompliance2 records
Pure Leapfrog financial estimates
Financial estimateRevenue estimate
Valuation estimate
Pure Leapfrog leadership team
Management profileNumber of profiles
Profiles2 records
Pure Leapfrog funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Pure Leapfrog M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Pure Leapfrog
What does Pure Leapfrog do?
Pure Leapfrog is a sustainability consultancy and project delivery organisation that develops community-owned renewable energy projects, delivers whole-house retrofit services through its Let Zero one-stop-shop for landlords, and provides energy advice for vulnerable consumers such as mortgage prisoners. The organisation combines technical, financial, and community engagement expertise to take renewable and retrofit projects from initial concept through to construction and operation.
Is Pure Leapfrog a public or private company?
Pure Leapfrog is a private company. It is classified as nonprofit foundation owned and is currently operating.
When was Pure Leapfrog founded?
Pure Leapfrog was founded in 2005. It employs 1 to 10 people.
Where is Pure Leapfrog based?
Pure Leapfrog is headquartered in London, United Kingdom, in the Europe region.
How does Pure Leapfrog make money?
Three revenue lines are on record. Consultancy Services are the primary driver. The others are government and Grant Funding and donations.
Who are Pure Leapfrog's main competitors?
Broad incumbents on record are Energy Saving Trust, Carbon Trust and National Energy Action. Repowering London is listed as an emerging player. Direct peers are Centre for Sustainable Energy and Severn Wye Energy Agency. Others are Building Research Establishment (BRE), Social and Sustainable Capital and Community Energy England. Marches Energy Agency is listed as a regional player.
Does Pure Leapfrog have an API?
No public API is recorded for Pure Leapfrog.