Nullspace Secures $2.5M to Advance RF and Quantum Simulation Software for Aerospace and Defense

Nullspace Inc., a Huntsville-based deep tech startup, has raised $2.5 million in seed funding to accelerate development of its next-generation electromagnetic simulation software. Led by Fathom Fund with participation from Golden Seeds and strategic angel investors, the round positions Nullspace to expand its engineering team and scale go-to-market efforts across aerospace, defense, quantum computing, and AI-enabled hardware sectors.

Founded by Dr. Masha Petrova and Dr. Daniel Faircloth, Nullspace is tackling one of the most persistent bottlenecks in high-performance engineering: outdated simulation tools that struggle with the complexity and scale of modern RF and quantum systems.

Simulation Software Built for the Frontier

Nullspace’s flagship product, Nullspace EM, is designed to simulate large-scale RF systems with full-fidelity accuracy and speed. This capability is increasingly critical in aerospace applications such as satellite communications, radar systems, and electronic warfare, where design complexity and electromagnetic performance are tightly coupled.

The company also offers Nullspace ES, reportedly the only commercial tool capable of simulating extremely large ion traps for quantum computing architectures. As quantum systems inch closer to commercialization, simulation tools like these will be essential for hardware validation and design optimization.

A New Era for Electromagnetic Design

For aerospace engineers and defense technologists, simulation is no longer a back-office function, it’s a strategic enabler. RF systems underpin everything from avionics and autonomous navigation to spectrum warfare and satellite constellations. Yet many legacy tools are ill-equipped to handle the scale and nuance of today’s designs.

Nullspace’s software, developed over a decade through defense contractor IERUS Technologies, has already been validated on real-world antenna, microwave, scattering, and ion-trap problems. This dual-use pedigree makes it particularly attractive for government programs seeking commercial-grade tools with proven defense reliability.

Strategic Backing and Board Expansion

Fathom Fund’s Dr. Paul Sheng, who joins Nullspace’s board, praised the company’s “deep technical moat” and its founders’ ability to build mature, market-ready solutions. The board also welcomes Dr. Nathan Kundtz, founder of Rendered AI and former CEO of Kymeta Corporation, adding further depth in simulation and RF commercialization.

The timing is notable. With 5G, autonomous systems, and quantum computing driving demand for high-performance RF design, Nullspace is entering the market with tools that could redefine simulation workflows across aerospace and defense.

Why It Matters: RF Is Everywhere, and Quantum Is Coming

From smartphones and drones to hypersonic platforms and secure communications, RF technology is embedded in nearly every modern aerospace system. As design cycles shorten and mission requirements grow more complex, simulation tools must evolve to keep pace.

Nullspace’s approach, combining modern numerical methods with scalable architecture, offers a compelling alternative to legacy solvers. For aerospace professionals, this could mean faster prototyping, more accurate modeling, and ultimately, better mission outcomes.