First Light Fusion
PrivateLast Round
Early Funding
Apr 21, 2026
Total Funding Raised
$140.81M
Momentum Score
25 /100
Company Overview
First Light Fusion is a British research company spun out from the University of Oxford in 2011, focused on developing technology for inertial confinement fusion. The company's primary approach, known as projectile fusion, involves firing a projectile at high velocity to compress a fuel target. In early 2025, First Light Fusion announced a strategic shift to focus on commercializing its proprietary amplifier technology. This new strategy involves forming partnerships with other fusion companies and exploring applications in non-fusion sectors like space and defense, rather than pursuing its own power plant development. The company achieved its first validated fusion result in 2021, confirmed by the UK Atomic Energy Authority (UKAEA).
Sector
Energy & Sustainability
Verticals
Renewable Energy, Advanced Materials, Space Technology, Defense Tech
Business Model
B2B
Customer Profile
Services & Consulting, Government Contracts, Hardware Sales
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
First Light Fusion Comps
Public and private peers based on sector, stage, and business model.
First Light Fusion Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Early Funding | Apr 21, 2026 | ||||
| Series C | Feb 14, 2022 | ||||
| Series B | Dec 23, 2020 | ||||
| Series A | Aug 19, 2015 | ||||
| Seed | Jul 11, 2011 |
Key People
Founding team and executive leadership
First Light Fusion Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| East X Ventures | Early Funding |
| Braavos Investment Advisers | Series C |
| IP Group | Series C, Series B, Early Funding, Series A, Seed |
| Hostplus Superannuation Fund | Early Funding |
| Oxford Science Enterprises | Series C, Series B |
| University of Oxford | Series A |
| United Kingdom Atomic Energy Authority | Early Funding |
Market signals
Structured signals derived from secondary market and firmographic data.
- Apr 21, 2026
FLARE concept achieved highest energy gain of any inertial fusion energy method.
- Apr 21, 2026
$34M raised in early funding.
First Light Fusion Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
Frequently Asked Questions
Common questions about First Light Fusion's valuation, stock price, and market status.
