The strategy shift follows funding and production acceleration, including a Series D valued over $1 billion led by Interlagos, expanded Los Angeles production capacity, and the acquisition of Phase Four’s Hall Effect thruster technology to boost vertical integration.

Apex is pivoting from a small-satellite focus to two larger platforms, Comet Mini and Comet XL, targeting orbital data centers and the Pentagon’s Golden Dome architecture.

The new Comet bus variants extend beyond Aries, Nova, and Comet to accommodate higher power and greater mass for demanding payloads.

Market drivers include the Pentagon’s Golden Dome and the growing viability of space-based data centers, underscored by Starcloud’s funding and valuation, reinforcing demand for high-power, high-mass satellites.

Apex’s latest move signals a broader market shift toward high-power, high-mass satellites and space-based computing, with customer demand for larger platforms growing faster than manufacturers expected.

Based in Los Angeles, Apex now plans to develop larger and more capable spacecraft to support energy-intensive missions such as orbital computing and missile defense.

The current development marks a departure from May 2025 plans that suggested Apex would not exceed the Comet platform, reflecting rising demand for high-power, high-mass satellites.

Risks include dependence on Starship’s launch cadence for Comet XL, political and budget uncertainties around Golden Dome, and engineering challenges in scaling power, mass, thermal management, and testing for substantially larger platforms.

Industry trends point to orbital data centers processing data in space and missile-defense architectures like the Pentagon’s Golden Dome, which require persistent sensing, real-time tracking, rapid command-and-control, and interceptor payload capabilities.

Comet Mini will generate about 20 kilowatts of power, support payloads up to 1,000 kilograms per unit (configurations up to 3,000 kilograms), and is slated for availability by 2028, placing Apex in the medium-class satellite segment.

Comet Mini will offer flexible launch configurations, with 16 satellites carrying 450-kilogram payloads on a Falcon 9 or eight satellites carrying 1,000 kilograms each, and potential custom setups up to 3,000 kilograms, delivering roughly four times the power of today’s Comet.

Apex’s business model emphasizes building high-performance satellite buses at scale, rather than operating end-use data centers or defense systems, aiming to compete with Northrop Grumman, Airbus, and Maxar through rapid production timelines.