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- First Light Fusion
First Light Fusion Funding, Investors & Competitors
First Light Fusion has raised $130M across 4 funding rounds, most recently a $25M undisclosed-stage round in April 2026.
About First Light Fusion
First Light Fusion is an Oxfordshire-headquartered energy company pioneering inertial confinement fusion for clean power generation. Spun out from the University of Oxford in 2011, it employs projectile-based fusion machines achieving megabar pressures through amplifiers and targets. The firm collaborates with Oxford, Warwick, UCL, and Imperial College on simulations and experiments at its Yarnton facility.
Founded
2011
HQ
Website
Status
Privately held
Customer focus
B2B
Revenue model
Product sales
Sectors
First Light Fusion Funding History
First Light Fusion has raised a total of $130M across 4 funding rounds.
First Light Fusion's first fundraising round was a $35M undisclosed-stage round in August 2015. The most recent completed round was a $25M undisclosed-stage round in April 2026.
First Light Fusion funding rounds
| Date | Stage | Investors | Raised | Deal Summary |
|---|---|---|---|---|
| Apr 2026 | Undisclosed stage | Oxford Science Enterprises (lead); IP Group; Hostplus | $25M | First Light Fusion completed the first close of its latest funding round, raising £25 million. The round was led by East X Ventures through its fusion fund Starmaker One, with a significant strategic investment from the UK Atomic Energy Authority and participation from existing shareholders including IP Group plc and its Hostplus managed fund. The capital will accelerate commercial development of First Light Fusion’s FLARE Fusion Energy concept, a novel reactor-compatible approach to inertial fusion energy aimed at providing a simpler, lower-cost pathway to fusion. Funds will also support planning for a prototype gain-scale experiment and further grid-scale reactor development. First Light Fusion, an Oxford, UK-based inertial fusion energy company and pioneer in machine learning-driven simulation, focuses on energy generation via inertial fusion. FLARE remains in the design and validation stage. IP Group holds a 28.3% undiluted beneficial interest, with an additional 17.3% via managed funds. |
| Feb 2022 | Series C | IP Group; Oxford Science Enterprises; Tencent; Hostplus; Braavos Investment Advisers | $45M | First Light Fusion, an Oxford-based spinout from the University of Oxford founded in 2011, develops inertial confinement fusion technology using projectile-driven approaches to achieve clean, safe, and abundant energy generation without long-lived waste or meltdown risks. The company leverages existing technologies and materials for its power plants, distinguishing it from other fusion methods. In February 2022, it closed a $45 million Series C funding round with participation from existing investors Oxford Science Enterprises (formerly OSI), Hostplus, and IP Group plc, alongside new investors Braavos Capital and Tencent. IP Group committed £5 million and held a 27.4% undiluted beneficial stake post-round, recording a net unrealised fair value gain of £27.2 million. The funding supports acceleration of the company's 'gain' experiment, aiming to produce more energy output than input, and advances design and engineering for a first-of-a-kind commercial fusion power plant. Recent milestones include commissioning the 'Big Friendly Gun' (BFG), a 22-meter, 25,000 kg two-stage hyper-velocity gas gun complementing the electromagnetic 'Machine 3', enabling exploration of new parameter spaces with larger projectiles. By early 2022, the team had grown to 67 employees and expanded facilities. This round follows a prior $25 million raise from OSI, IP Group, and Hostplus. In August 2022, First Light initiated plans for a £400 million fundraising coordinated by UBS to accelerate commercialization, with a prospective valuation suggested near or at unicorn status ($1 billion), though details remained unclear. The company claims unprecedented progress in fusion development, endorsed by UK Business Secretary Kwasi Kwarteng for its potential to revolutionize power production. |
| Dec 2020 | Undisclosed stage | - | $25M | First Light Fusion, an Oxford-based spinout from the University of Oxford founded in 2011, develops inertial confinement fusion technology using projectile-driven compression to achieve extreme temperatures and pressures for fusion energy. The company raised $25 million in a Series B funding round on December 23, 2020, led by Oxford Sciences Innovation with participation from IP Group and Hostplus, bringing total funding to over $100 million across multiple rounds. Proceeds funded hiring 23 new employees to expand the team beyond 60, upgrades to computational and experimental resources, planning for a prototype gain-scale experiment, and grid-scale reactor development, alongside expanding its Oxford HQ by 11,000 square feet. In 2020, First Light achieved milestones including high-resolution 3D x-ray tomography of targets for improved manufacturing and a major upgrade to Machine 3, the world's largest pulsed power machine dedicated to fusion research. The approach aims for net energy gain this decade and a first-of-a-kind plant in the 2030s via a cost-efficient path. Investors include IP Group (Series B lead), Oxford Science Enterprises, and others like Hostplus. |
| Aug 2015 | Undisclosed stage | IP Group | $35M | First Light Fusion Limited, a University of Oxford spin-out, completed a Series A funding round of £22.7 million on August 14, 2015, to commercialize its implosion-based fusion energy technology. The round was completed in two tranches subject to milestones, with the first tranche of £14.0 million valuing IP Group's stake at £13.9 million while giving IP Group an undiluted beneficial interest of 34.9% in the company. Other investors in the financing round included Invesco Asset Management Limited, Sandaire Investment Office, and the University of Oxford. IP Group committed £5.8 million to the first tranche and recorded an unrealised fair value gain of £6.4 million on its investment. The company, founded by Nick Hawker as Chief Technology Officer and co-founder, had made considerable progress in its technology development over the preceding eighteen months and sought to accelerate its vision of affordable, practical, and safe energy supply through its differentiated approach to fusion technology. The funding enabled First Light to establish a prestigious Scientific Advisory Board including Nobel laureate Steven Chu, former US Energy Secretary, and expand its partnerships with leading university research groups. As a pre-commercial research-stage company, First Light Fusion did not disclose revenue or EBITDA metrics at the time of this funding round. |
Who has invested in First Light Fusion?
5 investors have backed First Light Fusion across its funding rounds, including IP Group, Oxford Science Enterprises, Hostplus, Tencent and Braavos Investment Advisers.
Lead investors include Oxford Science Enterprises.
First Light Fusion Investors
| Investor | HQ | Rounds | Role | First check |
|---|---|---|---|---|
| 3 | Participant | Aug 2015 | ||
| 2 | Lead | Feb 2022 | ||
| 2 | Participant | Feb 2022 | ||
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Benchmark 350K+ Funding Rounds and Disclosed VC Valuation Multiples
Sign up to see data on 350K+ funding rounds and disclosed revenue and EBITDA valuation multiples, from seed, through growth stage, to pre-IPO.
Start Free TrialFirst Light Fusion Competitors
First Light Fusion competitors include listed companies like GE Vernova, Vistra, Cameco and CEZ Group, and private ones like Valar Atomics and Commonwealth Fusion Systems.
| Company | HQ | Status | Revenue | EBITDA | Valuation | Revenue Multiple |
|---|---|---|---|---|---|---|
| Publicly listed | $38B | $3.2B | $246B | 5.4x | ||
| Publicly listed | $18B | $5B | $48B | 3.3x | ||
| Publicly listed | $2.5B | $825M | $41B | 16.1x | ||
| Publicly listed | $16B | $6.7B | $35B | 2.9x | ||
| Private | - | - | $6B | - | ||
| Private | - | - | $3.4B | - |
First Light Fusion Public Comps
First Light Fusion is still privately-owned, but its public comps include GE Vernova, Vistra, Cameco, CEZ Group, CGN Power, Uniper, Kansai Electric Power, China National Nuclear Corporation, National Atomic Co and Zheneng Electric.
| Last FY | EV/Revenue | EV/EBITDA | ||||||
|---|---|---|---|---|---|---|---|---|
| Revenue | EBITDA | Last FY | LTM | 2027E | Last FY | LTM | 2027E | |
| $38B | $3.2B | 6.2x | 5.4x | 73.5x | 43.5x | |||
| $18B | $5B | 4.0x | 3.3x | 13.9x | 10.2x | |||
| $2.5B | $825M | 16.2x | 16.1x | 49.0x | 29.7x | |||
| $16B | $6.7B | 2.9x | 2.9x | 6.7x | 7.9x | |||
| $11B | $3.5B | 7.8x | 7.7x | 25.0x | 16.9x | |||
| $70B | $2B | 0.4x | 0.4x | 13.2x | 19.4x | |||
| $26B | $6B | 1.6x | 1.5x | 7.0x | 8.6x | |||
| $3B | $481M | 6.6x | 6.4x | 40.6x | 31.1x | |||
This data is available for Pro users. Sign up to see all First Light Fusion competitors and their valuation data. Start Free Trial | ||||||||
Common questions about First Light Fusion
| When was First Light Fusion founded? | First Light Fusion was founded in 2011. |
| Where is First Light Fusion headquartered? | First Light Fusion is headquartered in Oxford, United Kingdom. |
| Is First Light Fusion publicly listed? | No, First Light Fusion is a private, VC-backed company. |
| How much funding has First Light Fusion raised? | First Light Fusion has raised $130M across 4 funding rounds. |
| What was First Light Fusion's last funding round? | First Light Fusion's last funding round was a $25M undisclosed-stage round in April 2026, led by Oxford Science Enterprises. |
| Who are First Light Fusion's investors? | First Light Fusion's investors include IP Group, Oxford Science Enterprises, Hostplus, Tencent and Braavos Investment Advisers. |
| Which companies are comparable to First Light Fusion? | Companies comparable to First Light Fusion include GE Vernova, Vistra, Cameco, CEZ Group, Valar Atomics and Commonwealth Fusion Systems. |
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