October 2026
Largest EnergyTech Public Companies in the UK
Benchmark revenue and EBITDA valuation multiples for public comps like
Greencoat UK Wind, H-Power, Invinity Energy Systems, Vertical Aerospace and Ilika.
 | Greencoat UK Wind PLC is a renewable infrastructure fund, solely and fully invested in operating UK wind farms. The company aims to provide investors with an annual dividend that increases in line with RPI inflation. It also tries to preserve the capital value of its investment portfolio in the long-term on a real basis through reinvestment of excess cash flow and the prudent use of portfolio leverage. The company invests in both onshore and offshore wind farms. All of the group's income is generated within the UK. | $2 | +9% | $3.3B | $5.5B | (21.9x) | - | ||
| H-Power PLC is a provider of ammonia-based low carbon hydrogen production and hydrogen-to-power solutions. Its products include decentralised ammonia cracker systems and fuel cell generators designed to supply low-carbon hydrogen and power for industrial and off-grid applications. The company focuses on the commercial rollout of its hydrogen and power technologies and the development of modular ammonia cracker systems and fuel cell-based power solutions. Its technologies are intended to provide alternatives to conventional diesel-based power generation systems. | $0 | +7% | $138M | $116M | 700.2x | (4.1x) | ||
| Invinity Energy Systems PLC operates in the manufacturing of vanadium flow battery systems and their related installation and other services. Its vanadium flow batteries are a form of heavy-duty, stationary energy storage, used in high-utilization applications such as being coupled with industrial-scale solar generation for distributed, low-carbon energy projects. The company's flow battery systems are ideal for commercial and industrial sites, grid network infrastructure projects, and off-grid applications, either standalone or alongside renewable energy such as solar PV. It generates the majority of its revenue from the sale of Battery systems and associated control systems. | $0 | -12% | $134M | $123M | 11.3x | (4.0x) | ||
| Vertical Aerospace Ltd is engaged in making air travel personal, on-demand, and carbon-free. The company is a world-wide aerospace and technology company that is pioneering electric aviation, focused on designing, manufacturing, and selling a zero-emission eVTOL aircraft for use in the AAM market, using the technology from the aerospace, automotive, and energy industries. The VX4, Vertical's flagship aircraft, is a piloted electric vertical take-off and landing (eVTOL) vehicle capable of carrying four passengers. The Group operates as a single operating segment and one reporting segment, being the development and commercialization of eVTOL technology. | $0 | -91% | $67M | $126M | - | (0.9x) | ||
| Ilika PLC is a pioneer in solid-state battery technology, enabling solutions for applications such as industrial IoT, medtech, electric vehicles, and consumer electronics. The Group operates in two product lines: Stereax batteries, used to power miniature medical devices and industrial IoT, and Goliath large-format batteries for electric vehicles (EVs), defence, and consumer appliances. The Group operates in one area of activity, namely the production, design, and development of solid state batteries. Geographically, it generates the maximum revenue from the United Kingdom, and the rest from North America, Asia, and Europe. | $0 | -50% | $58M | $53M | 350.0x | (5.7x) | ||
| CyanConnode Holdings PLC designs and develops wireless monitoring and control products for smart metering, lighting, and the Internet of Things applications. The company provides customers with long-range, low-power, end-to-end networking solutions and high-performance applications that help them enhance service delivery, improve business efficiency, and save energy. The company offers a range of solutions including Narrowband RF mesh, Ultimesh, Panmesh, and Omnimesh. The company has operations in Europe, Asia, and Rest of World. | IoT+2 | $0 | -- | $48M | $64M | - | - | |
| Technologies New Energy Plc principal activity during the period was identifying potential companies, businesses or assets for acquisition. | $0 | -13% | $46M | $47M | - | - | ||
| Ampeak Energy Ltd is a developer, builder, owner and operator of sustainable energy projects. It considers its business as four operating segments: Project Development, Tidal, Battery Storage and Corporate. The Tidal segment focuses on the operation and further development of the flagship tidal stream project, MeyGen. Revenues from the Tidal segment are derived from MeyGen's contract to sell generation and renewable obligation certificates. The Battery Storage segment reports the income from each of its BESS projects; the operating costs associated with the Uskmouth site and the valuation of the battery storage project portfolio. The Project Development segment reports the project development costs incurred on all projects. It derives majority of revenue from Battery Storage segment. | $0 | -18% | $18M | $162M | 8.1x | (10.0x) | ||
| Pri0r1ty Intelligence Group PLC is an artificial intelligence (AI) driven, data-powered software as a service (SaaS) solution that aims to help businesses at various stages of their journey by creating efficiency through technology. Its objective is to assist SMEs by providing a combination of services derived from deep learning, data architecture and AI models. It is building a digital agent for automated business processes, whose underlying technology is Priority Advisor. This bespoke AI-powered advisory bot uses Deep Learning and can engage investors, customers or stakeholders either on a website, IM or email server. It will collect data on customer interactions to enrich the language model and build community interest maps that power content creation and additional support services. | $0 | -45% | $3M | $3M | 13.2x | (0.2x) | ||
| Median | $0 | -16% | $58M | $116M | 12.2x | (4.0x) |
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