Reactive Technologies closes £16.3m debt round from European Investment Bank
This article covers Reactive Technologies, an energy startup, which has closed a debt funding round of £16.3m from the European Investment Bank to accelerate deployment of its GridVerix platform and expand R&D in Finland. The financing aims to help grid operators across Europe integrate more renewable energy and reduce outage risk by supporting wider deployment and further research and development.
Reactive Technologies has closed a debt funding round of £16.3m from the European Investment Bank to accelerate deployment of its GridVerix platform and expand R&D in Finland; the financing is intended to help grid operators integrate more renewable energy and reduce outage risk across Europe.
Why it matters
Europe’s electricity networks are shifting rapidly as more wind and solar generation and large new electricity consumers such as data centres connect to the grid. That transition increases the need for real‑time visibility into stability indicators such as inertia and voltage strength. Reactive Technologies’ platform aims to give operators that visibility, which can help avoid outages, reduce renewable curtailment and lower operating costs passed on to consumers.
The funding is notable because it comes from a public development lender using InvestEU backing and the EIB Group’s TechEU initiative, signalling continued institutional interest in tools that support the energy transition and grid resilience.
Inside the product
Reactive Technologies’ GridVerix platform provides real‑time measurements and analytics on stability metrics including inertia, voltage strength and oscillation behaviour. The company describes the product as delivered through a data‑as‑a‑service model that combines high‑resolution measurement hardware and cloud analytics to flag vulnerabilities across transmission and distribution networks.
In practice, GridVerix targets three use cases: helping transmission and distribution operators manage system stability as renewables increase; enabling connection of large loads such as data centres with clearer visibility of local grid strength; and reducing curtailment of renewable generation by improving operators’ confidence to accept variable supply. Reactive says it has an R&D centre in Oulu, commercial offices in London and presence in the US, UAE and Australia, which it uses for deployment and customer support.
Who are the investors?
The European Investment Bank is the lender behind the £16.3m package, which the EIB has structured as venture debt. The operation is backed by the InvestEU programme and contributes to the EIB Group’s TechEU initiative.
Of the total, up to £6m will support R&D activities at Reactive Technologies’ Oulu centre and £10.3m will fund deployment across the European Union. The EIB framed the debt as long‑term financing intended to provide capital without equity dilution.
In the announcement, Karl Nehammer, EIB Vice‑President, said:
Europe needs electricity grids that can keep pace with the rapid growth of renewable energy. Reactive Technologies gives grid operators a much clearer picture of what is happening across their networks in real time. Our financing will help bring this European technology to more markets, reduce the risk of power outages and support the secure integration of more clean power.
In the announcement, Marc Borrett, Chief Executive Officer at Reactive Technologies, said:
EIB support comes at a critical moment. The rapid growth of renewable energy and large power consumers such as data centres are making Europe’s grids more complex to manage. By providing real-time measurements of grid stability, GridVerix can help operators keep the system secure, operate more efficiently and reduce costs for consumers.
If you're researching potential backers in this space:
- Explore our list of energy venture capital firms in the UK
- Browse our directory of energy angel investors in the UK
Founder perspective
Reactive Technologies was co‑founded in the UK and Finland and is headquartered in London, with an advanced R&D presence in Oulu. The company positions itself as a deep tech energy firm focused on measurement and analytics for grid stability, selling to utilities, asset owners and equipment manufacturers. Its platform evolution—including a recent rebrand from GridMetrix to GridVerix—reflects a move towards commercialisation and wider deployment after multi‑site trials and product refinement.
The bigger picture
The deal underlines how public finance instruments are being deployed to plug gaps in Europe’s energy transition infrastructure. The EIB Group has been active in venture debt and other instruments that aim to mobilise private capital into strategic technologies. In 2025 the EIB Group reported significant new financing across climate, digital and other priorities, and initiatives such as the European Tech Champions effort seek to scale innovative companies across the continent.
For grid operators and regulators, tools that provide objective, high‑resolution measurements will likely become part of the toolbox for managing a net‑zero power system. At the same time, the choice of venture debt highlights an appetite for financing that preserves founders’ equity while supporting capital‑intensive deployments.
This financing feeds into a broader UK and European push to upgrade electricity infrastructure for higher shares of renewables, and it illustrates how public and private finance can combine to accelerate technologies that support grid stability and the energy transition.
They've invested in Reactive Technologies
Get to know these energy investors
| Investors | Investment Focus | Startup Investments | Round Size | Connect |
|---|---|---|---|---|
 European Investment Bank (EIB)( ) | ||||
 European Investment Fund (EIF)( ) Luxembourg, Luxembourg | Series BGrowth | |||
| All investors | All investor sectors | All funded startups | All funding rounds |
Click here for a full list of 7,589+ startup investors in the UK