Pearlstone
Pearlstone Energy is a UK-based demand response aggregator using its proprietary ViBCloud platform to help commercial and industrial businesses participate in National Grid flexibility markets on a zero-upfront-cost, share-of-savings model.
- Company typePrivate
- Founded2015
- HeadquartersLondon, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Pearlstone does
Pearlstone Energy Limited is a UK-based Demand Side Response (DSR) aggregator that enables commercial and industrial (C&I) businesses to participate in National Grid flexibility markets. Founded in 2015 and headquartered at 71-75 Shelton Street in London, the company operates on a zero-upfront-cost, share-of-savings commercial model in which it aggregates energy flexibility from customer sites, sells the dispatched capacity to National Grid ESO (now NESO) and Distribution System Operators, and shares the resulting revenue and savings with connected customers.
The company's core technology is its proprietary Virtual Integrated Building (ViB) platform, branded ViBCloud, which connects to a customer's building management system via a ViB Host Gateway and consolidates electricity meter data from each building every 60 seconds. Data is transmitted using OpenADR alliance protocols with PKI-based multi-layer encryption. The platform targets C&I customers capable of shedding at least 50kW during peak events, with documented customer outcomes including up to 43% load reduction at an airport facility, up to 20% non-disruptive turn-down during Triad periods, and up to £50k/MW per year in customer revenue from flexibility services. Named customers include 3M, Honeywell, Leeds Beckett University, The Lowry Hotel, Barnsley College, and NHS-affiliated sites.
Pearlstone generates revenue through usage-based and recurring-share arrangements: customers earn from STOR and other National Grid balancing services, while Pearlstone takes a share of savings and dispatched flexibility revenue under multi-year contracts. Distribution combines a self-serve Energy Calculator on the company website for top-of-funnel qualification with direct enterprise field sales for multi-site deployments, supplemented by a channel partnership with Incentive Carbon Management (Incentive FM Group) to access facilities-management customer bases. The company is privately held, has 1-10 employees, and has raised approximately $835K across two Crowdcube crowdfunding rounds in 2021 and 2023.
Pearlstone firmographics
Firmographics- Name
- Pearlstone
- Legal name
- Pearlstone Energy Limited
- Website
- https://pearlstoneenergy.com
- Company type
- Private
- Founded year
- 2015
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Pearlstone Energy is a UK-based demand response aggregator using its proprietary ViBCloud platform to help commercial and industrial businesses participate in National Grid flexibility markets on a zero-upfront-cost, share-of-savings model.
- Ownership category
- akta.pro rank
Pearlstone industry classification
Industry- Product category
- Demand Response Aggregation & Energy Flexibility Services
- akta.pro primary industry
- Aggregation Services (Load Aggregation, Community Choice, Buyer Pools) (EUAGAEAC)
Keywords
Where Pearlstone is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Pearlstone business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure, Supply Chain
Revenue model
- DSR Capacity Revenue Sharing: Pearlstone aggregates flexibility capacity and sells it to National Grid, then shares revenues and savings with connected customers. Customers can generate new revenue streams by reducing electricity consumption at peak times or increasing power via generator.
- Energy Cost Savings: Customers reduce energy consumption during peak times, saving on energy costs. Pearlstone operates on a share of savings/revenue model, so customers are guaranteed savings with zero upfront costs.
- Triad Avoidance Savings: Helps customers save on Transmission Network Use of System (TNUoS) charges by manipulating energy consumption during key Triad moments, significantly reducing annual energy costs.
- STOR Balancing Service Revenue: Customers participate in National Grid's Short Term Operating Reserve (STOR) balancing service to keep the electricity network running smoothly, generating additional revenue streams.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Hybrid | Multi-year contract | No upfront cost model with shared savings/revenue |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels5 records
Pearlstone product offering
Product offeringCore offering
Pearlstone is a UK Demand Side Response (DSR) aggregator that provides a cloud-based Virtual Integrated Building (ViB) platform enabling commercial and industrial businesses with multiple sites to automatically reduce electricity consumption during peak grid events and participate in National Grid ESO/DSO flexibility markets. Customers receive a zero-upfront-cost turnkey installation (equipment, gateways and engineering included) and earn a share of the resulting energy cost savings and National Grid balancing revenues (including STOR, Triad avoidance, Dynamic Containment and Firm Frequency Response).
Product overview
Pearlstone Energy is a UK-based DSR (Demand Side Response) aggregator and technology company offering a cloud-based platform centered on its proprietary Virtual Integrated Building (ViB) technology. The core ViB product enables commercial and industrial businesses with multiple sites to aggregate their energy flexibility and participate in National Grid ESO and DSO flexibility markets, generating revenue by reducing consumption during peak times. The company also provides an Energy Calculator tool for prospect analysis. The platform operates on a zero upfront cost, share-of-savings model, connecting customer building management systems through proprietary gateways to deliver automated demand response events using OpenADR protocols.
Differentiator
Problem solved
Functional benefit
Brands
- Virtual Integrated Building (ViB): Cloud-based automated tool for commercial and industrial businesses to manage Demand Side Response across multiple sites.
- ViBCloud
Quantifiable outcome
- Load reduction of up to 43% per event achieved at airport facilities through HVAC optimization
- +4 more outcomes
Companies that use Pearlstone
Customer profileNamed customers7 records
Segments5 records
Ideal customer profiles2 records
Pearlstone technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Pearlstone partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- National Energy System Operator (NESO)coreNESO (formerly National Grid ESO) is the electricity system operator for the UK. Pearlstone operates in partnership with NESO to help balance supply and demand of energy using DSR technology. Pearlstone aggregates C&I energy flexibility and sells capacity to NESO through flexibility markets.
- Incentive Carbon ManagementcoreIncentive Carbon Management (ICM), part of Incentive FM Group, provides energy and carbon reduction solutions to SMEs and larger businesses. ICM works with Pearlstone as their DSR aggregator to add value to existing customer relationships with innovative services including turn-down services, cost savings and revenue streams.
- National GridcorePearlstone is a National Grid-approved demand aggregator. Uses National Grid ESO's flexibility schemes to allow customers to participate in balancing and ancillary services. Pearlstone sells acquired DSR capacity to National Grid and shares revenues with connected customers.
Scale indicators10 records
Recent moves6 records
Expansion highlights6 records
Pearlstone competitors and assessment
Company assessmentDirect peers
- Kiwi Power: UK-based DSR and demand-side flexibility aggregator (now part of Engie) that helps C&I customers earn revenue from National Grid flexibility markets, directly competing with Pearlstone for the same enterprise customers.
- Flexitricity: One of the UK's longest-established DSR aggregators, Flexitricity aggregates industrial and commercial flexibility to sell into National Grid ESO balancing services — a directly comparable business model to Pearlstone's UK DSR aggregation.
- GridBeyond: AI-driven demand response and energy flexibility platform operating in the UK and Ireland, helping C&I businesses monetize flexibility in balancing markets — a near-direct peer in technology and customer segment.
- Upside Energy: UK DSR aggregator focused on aggregating flexible loads (including EVs and distributed assets) to provide grid balancing services — a comparable aggregation model targeting similar flexibility revenue streams.
- Limejump: UK flexibility platform and DSR aggregator acquired by Shell that aggregates distributed energy assets into National Grid balancing services — overlapping customer base and technology approach with Pearlstone.
Emerging players
- PassivSystems: UK-based energy management and analytics platform focused on reducing consumption in multi-site C&I portfolios — an adjacent peer targeting similar multi-site enterprise energy optimization use cases.
- Piclo (Open Utility): UK-based flexibility matching platform that connects DERs and demand-side assets to flexibility markets; an emerging alternative channel compared to Pearlstone's direct aggregation model.
Broad incumbents
- Centrica Business Solutions: Energy solutions arm of British Gas owner Centrica, offering DSR, energy storage and on-site generation to UK C&I customers as part of a full energy services portfolio — a broader incumbent competing for the same flexibility contracts.
- EDF Energy: UK energy supplier and generator with DSR and flexibility programs for C&I customers, bundling demand response within broader energy supply contracts — a broader market participant that can undercut specialist aggregators.
- Enel X (formerly EnerNOC): Global DSR and energy intelligence platform that aggregates C&I flexibility for grid services across multiple markets; offers a much broader portfolio but directly overlaps Pearlstone's core demand response offering.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Pearlstone social profiles
Digital presencePearlstone financial estimates
Financial estimateRevenue estimate
Valuation estimate
Pearlstone leadership team
Management profileNumber of profiles
Profiles4 records
Pearlstone funding detail
Funding detailFunding overview
Funding rounds2 records
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Pearlstone 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 Pearlstone
What does Pearlstone do?
Pearlstone is a UK Demand Side Response (DSR) aggregator that provides a cloud-based Virtual Integrated Building (ViB) platform enabling commercial and industrial businesses with multiple sites to automatically reduce electricity consumption during peak grid events and participate in National Grid ESO/DSO flexibility markets. Customers receive a zero-upfront-cost turnkey installation (equipment, gateways and engineering included) and earn a share of the resulting energy cost savings and National Grid balancing revenues (including STOR, Triad avoidance, Dynamic Containment and Firm Frequency Response).
Is Pearlstone a public or private company?
Pearlstone is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Pearlstone founded?
Pearlstone was founded in 2015. It employs 1 to 10 people.
Where is Pearlstone based?
Pearlstone is headquartered in London, United Kingdom, in the Europe region.
How does Pearlstone make money?
Four revenue lines are on record. DSR Capacity Revenue Sharing is the primary driver. The others are energy Cost Savings, triad Avoidance Savings and STOR Balancing Service Revenue.
Who are Pearlstone's main competitors?
Direct peers on record are Kiwi Power, Flexitricity, GridBeyond, Upside Energy and Limejump. Emerging players are PassivSystems and Piclo (Open Utility). Broad incumbents are Centrica Business Solutions, EDF Energy and Enel X (formerly EnerNOC).
Does Pearlstone have an API?
No public API is recorded for Pearlstone.
What industry is Pearlstone in?
Pearlstone's product category is Demand Response Aggregation & Energy Flexibility Services. Its primary akta.pro industry code is EUAGAEAC, Aggregation Services (Load Aggregation, Community Choice, Buyer Pools).