HUNTSVILLE, AL, Aug 20, 2025 – Nullspace has announced a $2.5 million seed round led by Fathom Fund, with participation from Golden Seeds LLC and other investors.
“Nullspace will utilize this seed funding to expand the engineering team, accelerate product development, and scale go-to-market efforts as we target growing demand across aerospace, defense, quantum computing, and AI-enabled hardware markets,” said Dr. Masha Petrova, Nullspace’s CEO and co-founder.
Nullspace Offers RF and Quantum Computing Tools
The expansion of 5G networks, advancements in AI chip design, and developments in electronic warfare are driving demand for radio frequency (RF) performance. Quantum computing is also moving toward commercial use, with companies working to develop viable systems to market.
Nullspace develops enterprise simulation software designed for engineering applications, with a focus on radio frequency systems and quantum computing hardware – two markets that combine growth potential with technical barriers.
“At Fathom, we seek out companies that combine deep technical moats with clear paths to market dominance, and Nullspace is a great example of that,” said Dr. Paul Sheng, managing partner at Fathom Fund. “The founders’ PhD-level engineering backgrounds, combined with their extensive operational track records, have enabled them to build software solutions with an extraordinary level of maturity.
Sheng continued, “Nullspace is delivering much-needed modern physics simulation tools that customers are welcoming with open arms. In rapidly evolving markets like 5G, quantum computing, and spectrum management, this head start is invaluable.”
Fathom’s Sheng will be joining the board of directors at Nullspace. In addition, Dr. Nathan Kundtz, CEO and founder of Rendered AI, and former CEO and co-founder of Kymeta Corporation, will join as an independent board director.
Why Now: RF and the Ubiquity of Connected Devices
RF technology supports core functions in mobile devices, autonomous vehicles, 5G networks, satellite systems, and defense applications, yet the simulation tools engineers use for these designs often lag behind current needs. Many available programs remain slow, are limited in accuracy, and do not scale well for complex projects.
Nullspace has introduced a new simulation platform called Nullspace EM that aims to address these limitations. The company says the platform can model larger and complicated RF systems while sustaining accuracy and speed. As RF designs become complex and performance demands increase, updated software options such as Nullspace EM offer a practical solution for engineers.
At the Frontier of Quantum Computing
Beyond transforming RF simulation, Nullspace also offers Nullspace ES – the commercial tool for design and analysis of ion traps for quantum computing architecture.
Dual Use: Defense-Validated Technology with Enterprise Traction
Nullspace develops enterprise-level RF simulation software built on numerical methods. This approach allows its software to serve both military and commercial users, and is suitable for new applications such as generative design and AI-guided design automation.
The company’s technology draws from the experience of IERUS Technologies, a defense contractor focused on electromagnetic, analytical computing, and weapons systems technologies. The core technology behind Nullspace’s software has been tested on antenna, microwave, scattering, and ion-trap design problems for more than a decade. It has also supported physical products delivered to the U.S. Department of Defense.
Source: Nullspace
About Nullspace
Nullspace Inc., based in Irvine, California, is a deep-tech spin-off from IERUS Technologies that launched in June 2023. The company develops engineering simulation software for defense, aerospace, communications, automotive and quantum computing applications. Its flagship solvers, Nullspace EM and Nullspace ES, provide electromagnetic and electrostatic modeling with multi-CPU and GPU acceleration, floating licensing and a Python API for automation. The tools are designed to handle electrically large problems, such as antennas, radomes and ion-trap structures, and have been reported to run up to 25 times faster than traditional software. The company’s relevance comes as the United States works to sustain its edge in defense technology and speed up innovation across critical industries. From automotive to computing, sectors increasingly depend on reliable RF and EM simulations to design antennas, communication systems and emerging quantum hardware. Existing tools can take days to complete complex simulations, slowing down development. Nullspace addresses this gap by enabling faster, more accurate modeling that reduces simulation time to hours. Its technology has already been proven in defense programs for more than a decade, giving the company a dual-use advantage in both military and commercial markets. Nullspace recently announced seed funding but has not disclosed revenue.
About Golden Seeds
Golden Seeds, founded in 2005 and headquartered in New York City, is an investment firm focused on women-led businesses. It operates one of the largest angel networks in the United States, with more than $185 million invested in over 250 companies that have raised more than $2B in follow-on capital. The firm has eight chapters in Arizona, Atlanta, Boston, Dallas, Houston, New Jersey, New York and Silicon Valley, along with members in 27 states. Through its Knowledge Institute, Golden Seeds also provides educational programs for investors and entrepreneurs. The firm invests across a range of industries, including enterprise applications, life sciences and technology.