OXCCU, the Oxford University spin-out developing a one-step process to convert waste carbon into SAF, has raised £20.75m in an oversubscribed Series B funding round. The round includes new investors Orlen VC, Safran Corporate Ventures, International Airlines Group (IAG), Hostplus, and TCVC, alongside continued support from existing backers Clean Energy Ventures, IP Group/Kiko Ventures, Aramco Ventures, Eni Next, Braavos Capital, and the University of Oxford.
This new capital will enable OXCCU to accelerate its commercialisation efforts, expand its operations, and advance its next phase of technology scale-up. It builds on the launch of the company's OX1 demonstration plant at London Oxford Airport in 2024. Their second demonstration plant, OX2, is underway and will be fully operational in 2026.
The announcement comes at a time of growing regulatory momentum and market demand for sustainable fuels. However, despite mandates such as the UK SAF mandate and ReFuelEU, high production costs remain a major barrier to widespread adoption.
The funding reflects increasing recognition that driving down SAF production costs is critical to unlocking aviation decarbonisation at scale. OXCCU's process simplifies SAF production pathways by eliminating the need for reverse water gas shift or e-methanol steps. Instead, its patented iron-based catalyst enables the direct synthesis of jet-fuel-range hydrocarbons from gaseous waste carbon in a single exothermic reaction. This reduces capital and operating costs, and reduces the carbon intensity of the fuel.
The catalyst's ability to operate with a wide range of carbon dioxide, carbon monoxide and hydrogen input gas compositions gives it the flexibility to efficiently convert different feedstocks such as reformed biogas, gasified wood waste, and pure carbon dioxide with hydrogen.
In a market where capital is tight and investors are rightly selective, this raise is a testament to the strength of our science, the clarity of our mission, and the urgency of the problem we're solving. What we're seeing is that serious players with truly distinctive technologies are still getting funded.
Andrew Symes, CEO
We recognise the need for the world to achieve net zero emissions by 2050 and for the aviation sector to play its part and to develop sustainably. IAG has been a leader in the sector, being the first airline group globally to commit to net zero by 2050. We are further committed to our goal of meeting 10% of our fuel needs with SAF by 2030. Meeting these goals will be supported by this investment into OXCCU which is part of our strategy of developing new partnerships to produce next-generation fuels.
Jonathon Counsell, Group Sustainability Director at IAG
We invest in the technologies of tomorrow to effectively transform our business. This year, we introduced SAF—sustainable aviation fuel produced from renewable and waste raw materials—into our offering. In line with our strategy, by 2035 we aim to become one of the leading producers of SAF in Europe. Supporting the achievement of this goal is a new investment by ORLEN VC in the technology of OXCCU, a company enabling the conversion of green hydrogen and carbon dioxide into synthetic aviation fuel. Its commercialization will strengthen our market competitiveness and support our pursuit of carbon neutrality.
Ireneusz Fąfara, President at ORLEN
At Safran, we are committed to advancing the decarbonization of aviation. In addition to the development of new technologies in our own products such as engines and aircraft equipment, we are also supporting the de-risking and industrial scale-up of the most promising sustainable aviation fuel technologies.
Nathalie Stubler, Chief Sustainability Officer at Safran
