What is Sunfire?
Headquartered in Germany and Switzerland, Sunfire stands at the forefront of the global energy transition. The company specializes in the development and deployment of advanced alkaline and solid oxide (SOEC) electrolyzer technologies. By providing scalable solutions for the production of green hydrogen and e-Fuels, Sunfire addresses the fundamental challenge of decarbonizing heavy industry. With a workforce exceeding 500 professionals, the company leverages a robust partner network to execute large-scale projects that facilitate the shift away from traditional fossil fuels, positioning itself as a vital infrastructure provider in the emerging hydrogen economy.
How much funding has Sunfire raised?
Sunfire has raised a total of $1B across 5 funding rounds:
Series D
$126M
Unspecified
$214.4M
Grant
$217.2M
Series E
$233.6M
Debt
$206.1M
Series D (2021): $126M with participation from Carbon Direct Capital Management, Lightrock, HydrogenOne Capital, and Planet First Partners
Unspecified (2022): $214.5M led by Blue Earth Capital, Carbon Direct, and Copenhagen Infrastructure Partners
Grant (2024): $217.2M, investors not publicly disclosed
Series E (2024): $233.6M featuring Lightrock, Carbon Equity, GIC, Planet First Partners, and Ahren Innovation Capital
Debt (2025): $206.1M backed by Commerzbank, LBBW, Societe Generale, and BNP Paribas
Key Investors in Sunfire
Lightrock
A global sustainable investment platform managing over $5.5 billion, focusing on purpose-driven businesses that address significant global challenges through technology-driven growth.
Planet First Partners
A growth equity platform that collaborates with disruptive entrepreneurs to scale tech-enabled businesses focused on sustainable practices and environmental returns.
BNP Paribas
A leading international banking group that provides comprehensive corporate and institutional financing, with a strong commitment to supporting energy transition and sustainable infrastructure projects.
What's next for Sunfire?
With the recent influx of capital, Sunfire is well-positioned to accelerate its industrial-scale production capabilities and further refine its proprietary electrolyzer platforms. The strategic focus will likely shift toward optimizing supply chain resilience and expanding market penetration within the European and global industrial sectors. By maintaining strong ties with both strategic industrial partners and institutional financial backers, Sunfire is poised to solidify its leadership in the green energy transition, effectively bridging the gap between laboratory-scale innovation and mass-market industrial application.
See full Sunfire company page
