Balerion Space Ventures announced investments in three frontier technology companies positioned at the centre of a fundamental shift in how America builds, powers, and operates critical infrastructure beyond Earth’s surface. Balerion’s investments in Antares Industries, Samara Aerospace, and Valar Atomics signal the intensifying convergence of space, defence, and industrial-scale energy systems, sectors increasingly recognised as foundational to U.S. competitiveness and national security.
“The companies we’re backing are building the foundational systems that will power the next trillion-dollar economy,” said Phil Scully, Co-Founder and General Partner at Balerion Space Ventures. “Agile spacecraft, advanced nuclear systems, and deployable microreactors – these are the technologies that will determine who leads in space, defence, and domestic manufacturing over the next decade as we enter a new industrial era driven by mass access to space. Balerion is excited to back the companies developing the infrastructure that will power the space economy.”
“These companies are building the enabling infrastructure that the broader space and defence ecosystem will rely upon for decades,” said Daniel Wallman, Partner at Balerion. “As capital pours into the sector, our focus remains disciplined on backing mission-critical platforms with real technical depth and scalable economics. Antares, Samara, and Valar exemplify the kind of durable enterprise value being created at the frontier of this asset class.”
Antares Industries is engineering modular, transportable microreactors designed for rapid deployment in contested or austere environments. These systems provide resilient, autonomous power for defence operations and critical infrastructure. The capabilities Antares offers are increasingly prioritised as global defence budgets surge and energy security becomes a national imperative.
Samara Aerospace is developing high-precision spacecraft platforms with advanced attitude-control technologies that enable unprecedented on-orbit agility. As satellite constellations scale and Earth observation becomes mission-critical for defence and commercial customers, Samara’s systems offer the performance edge required for next-generation orbital infrastructure.
Valar Atomics is scaling nuclear energy for heavy industrial power and hydrocarbon fuel production. The company recently became the first U.S. nuclear startup to achieve criticality at its Utah testing site, a breakthrough in the race to commercialise advanced nuclear systems for heavy industrial power and clean fuel production. The company’s technology addresses the critical need for abundant, reliable domestic energy to support advanced manufacturing and enable long-duration space missions.
“Launch costs are collapsing. Defence budgets are rising. Dual-use technologies are being adopted at a record pace,” Scully added. “The companies building the foundational systems that others depend on – that is where we invest.” Balerion’s investment will support product development, facility expansion, and key commercial milestone achievements as each company deepens engagement with defence, civil, and commercial customers. The firm will discuss these investments and the broader market landscape at its annual general meeting on December 9 in Bentonville, Arkansas.
