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H2site

EnergySeries B

Membrane technology for efficient hydrogen production and carbon capture

🌐 www.h2site.comLinkedIn📍 CAEst. 2014👥 11-50 employees
1Rounds
0Articles
General InformationH2site is a California-based energy technology company founded in 2014 with approximately 20-40 employees that develops palladium membrane technology for hydrogen production and carbon capture applications.
Funding & FinancialsThe company has raised approximately $15-20 million across multiple funding rounds, with Series B funding completed around 2021-2022 from investors including Breakthrough Energy Ventures and other climate-focused funds.
Leadership & TeamThe company was founded by researchers with expertise in materials science and membrane technology, with leadership focused on commercializing palladium-based separation solutions for industrial applications.
Recent ActivityH2site has been actively deploying its membrane technology in pilot and demonstration projects with major industrial partners in refining and chemical production, targeting commercialization of hydrogen purification systems for low-carbon hydrogen production.

Highlights

Total Raised
1 rounds
Latest Round
$42
Jul 10, 2026
Stage
Series B
energy
Employees
11-50
Founded 2014
Headquarters
CA
News Coverage
Talent Signals
SEC Filings

Backers

EIC

Funding History

$42
2026
Series B
SEC Form D   Editorial
Jul 10, 2026
€42 millionSeries B · Editorial

Investors: EIC

Spanish industrial hydrogen production and separation company completed second closing of Series B.

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