Helium-3 Ventures is a New York-based venture capital firm founded in 2021 by David Hendrickson, John Dauer and Matthew Bellamy. The team backs founders driving innovation across industries from earth-focused clean technologies to space exploration. With experience in assessing management teams and a strong Columbia University network, Helium-3 Ventures offers recruiting assistance, branding guidance, on-demand office space in New York City, and access to proprietary data and corporate contacts.
The firm invests at seed, early and growth stages, deploying checks from $100,000 to $5 million, with an average investment around $1.5 million. Its portfolio spans renewable energy, clean technology, advanced materials, communications, electric vehicles and recycling, alongside ventures in satellite and in-space manufacturing. Helium-3 Ventures looks for ventures that address global challenges and have the potential for large-scale impact, supporting entrepreneurs as they expand and refine their business models. Typical holdings include startups advancing EV charging infrastructure, next-generation battery chemistries, satellite networks and robotics for industrial automation.
A significant portion of Helium-3 Ventures’ investments focus on sustainability and battery innovation. Recent funding includes Princeton NuEnergy, which recycles lithium-ion batteries for a circular supply chain, and General Fusion, developing fusion energy systems. Deep geothermal developer Quaise, advanced geothermal firm Sage Geosystems and modular pumped storage provider Quidnet broaden the clean energy mix. Environmental restoration specialist Dendra, methane-reduction pioneer Alga and biodegradable-plastics company Genecis demonstrate the firm’s dedication to sustainable solutions. By funding a mix of power generation and storage technologies, the firm aims to support a decarbonized grid and accelerate the deployment of clean power worldwide.
