The European Investment Bank has signed a €19 million venture debt facility with Reactive Technologies, the London-based grid-stability measurement company founded in 2010.
The bank's public project register records the signature on 6 August 2026, in three same-day signatures of €12 million, €4.42 million and €2.58 million. The €2.58 million is attributed to Finland, where Reactive has operations. The financing is supported by InvestEU and sits under the EIB Group's TechEU programme.
The EIB approved the operation on 19 December 2025 and put the wider project cost at about €40 million. The register says the loan will support the development and deployment of technology across Europe for real-time measurement of power-system inertia, system strength and oscillation monitoring, with customised and flexible drawdowns. The bank said the project would not have been carried out to the same extent without InvestEU support.
On 21 May 2024 the company closed a £25 million Series D led by M&G's Catalyst strategy, with BGF and Breakthrough Energy Ventures. That round followed a $15 million fundraise announced on 12 August 2021, led by BGF with Breakthrough Energy Ventures and Eaton.
The EIB says venture debt is typically between €10 million and €50 million and is available to European SMEs and mid-caps that have already raised equity from professional investors.
The Reactive facility is a sub-operation of the bank's thematic green transition venture-debt lending envelope. The EIB approved that envelope in June 2025, with proposed finance of about €500 million against a total cost of about €1 billion. TechEU is the EIB Group's innovation-financing programme. The group said it would provide €70 billion of equity, quasi-equity, loans and guarantees in 2025-27, aiming to mobilise at least €250 billion of investment.