The European Investment Bank has signed a €19 million venture debt facility with Reactive Technologies. The bank's public project register records the signature on 6 August 2026.
The register records three signatures on the same day of €12 million, €4.42 million and €2.58 million. The €2.58 million is attributed to Finland. The financing is supported by InvestEU and sits under the EIB Group's TechEU programme. The bank put the wider project cost at about €40 million and approved the operation on 19 December 2025. The borrower on the project sheet is Reactive Technologies Ltd.
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. The EIB said the financing is meant to let the company keep investing in research and development and support its growth, and that the terms are customised and flexible on drawdowns. The bank also said the project would not have been carried out to the same extent without InvestEU support.
Reactive Technologies, founded in 2010 and based in London, sells grid-stability measurement products and has operations in Finland.
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. Reactive said the money would support international expansion, hiring and the delivery of contracted projects. EKTA Partners advised the company.
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. It describes the product as complementing venture capital, with a more limited effect on ownership than a new share issue. The bank typically offers this form of long-term financing to companies developing technologies in life sciences, deep tech and cleantech.
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. The envelope is meant to provide venture debt and other debt finance to eligible companies in InvestEU countries. 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.
The facility is supported by InvestEU, the EU programme that uses a €26.2 billion budget guarantee to crowd public and private capital into policy-priority projects. The EIB Group is the main implementing partner. The bank said the operation addresses InvestEU's energy-sector development objective.