Aetherflux Raises $50 Million to Deliver Energy to Planet Earth

• We raised $50m from Index, Interlagos, Breakthrough Energy Ventures, Andreessen Horowitz, and NEA
• We were recently awarded our first government funding
• Our team is focused on subscale testing of core technologies leading to a space demonstration in 2026

Our mission is to deliver energy to planet Earth. In the past few months, we’ve made progress toward making space solar power a reality: we were awarded our first government funding, grew the team and expanded our HQ, demonstrated power transmission in our lab, and capitalized the business to move even faster.

We recently closed a $50 million Series A round of financing, led by Index Ventures and Interlagos. Investors include Breakthrough Energy Ventures, Andreessen Horowitz, NEA, Vlad Tenev, Dan Gallagher, Jared Leto, Laurent and François-Paul Journe, and others. This brings our total raised to $60 million.

To start, we’re focused on supporting the U.S. Department of Defense’s (DoD) complex and urgent energy challenges. As part of this effort, The DoD’s Operational Energy Capability Improvement Fund (OECIF) approved our program for funding in FY25 to develop a proof of concept demonstrating power transmission from LEO.

Space solar power represents a strategic military advantage that can transform military operations. With this new capability, we can deliver energy where and when our military needs it most, especially where traditional power delivery is expensive, challenging, or dangerous.

The DoD recognizes the urgent need for resilient, infrastructure-independent energy. The Army and Navy require reliable power solutions for distributed ground and maritime operations that reduce logistics burdens and fuel dependency.

Space solar power can deliver power directly to our forces, reducing reliance on fuel convoys and fixed infrastructure, even in remote or contested regions like the Indo-Pacific. By delivering energy, day or night, we can protect warfighters, safeguard military assets, and support long-term DoD energy modernization, all while saving taxpayer money.

We’re building a talented team of engineers and researchers with backgrounds at NASA/JPL, SpaceX, Lockheed Martin, Anduril, and the U.S. Navy. In the lab, we’ve demonstrated successful power transmission. We’re now focusing on subscale testing of core technologies, leading up to our Mission 1 power beaming demonstration from LEO in 2026.

We’re moving with urgency. China declared its intent to deploy space solar power systems within the decade. And the European Space Agency is advancing its own space solar power initiative. The United States must prioritize space solar power or risk ceding energy leadership to others.

If you want to help America win, join us.