What is Sunfire?
Headquartered in Germany and Switzerland, Sunfire specializes in the deployment of alkaline and solid oxide (SOEC) electrolyzer technologies. The company serves as a pivotal player in decarbonizing energy-intensive industries, including steel, chemical, and fuel production. By providing scalable alternatives to fossil-based energy sources, Sunfire enables heavy industry to transition toward sustainable operations. Its market position is solidified by a robust partner network and a workforce exceeding 500 professionals, all dedicated to the large-scale implementation of hydrogen and e-Fuel infrastructure.
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 Lightrock, HydrogenOne Capital, Carbon Direct Capital Management, 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 Ahren Innovation Capital, Carbon Equity, Lightrock, GIC, and Planet First Partners
Debt (2025): $206.1M backed by Commerzbank, BNP Paribas, LBBW, and Societe Generale
Key Investors in Sunfire
Lightrock
Lightrock is a global sustainable investment platform managing over $5.5 billion in assets, focusing on purpose-driven businesses that address significant global challenges.
Planet First Partners
Planet First Partners is a growth equity platform that invests in and collaborates with disruptive entrepreneurs to scale tech-enabled businesses focused on sustainable practices.
BNP Paribas
BNP Paribas is a leading international banking group that provides comprehensive financing, advisory, and capital market solutions, with a strong commitment to sustainable finance and energy transition projects.
What's next for Sunfire?
The recent influx of capital positions Sunfire to accelerate the commercialization of its electrolyzer solutions across international markets. As the company moves beyond its current growth stage, the focus will likely shift toward scaling manufacturing capacity to meet the surging demand for green hydrogen. By leveraging its strategic partnerships with global industrial leaders, Sunfire is well-positioned to capitalize on the increasing regulatory and economic pressure to replace fossil fuels, ensuring long-term viability in the rapidly evolving clean energy landscape.
See full Sunfire company page
