Atombeam, a US-based AI and data technology company, has raised $18.3 million through a Regulation A+ offering hosted on StartEngine, bringing its cumulative funding to more than $55 million.
The Moraga, California-headquartered company announced the funding close on October 20, 2026. The capital will support the commercialization of its Neurpac data compaction software and further development of its Persistent Cognitive Machine (PCM) AI architecture.
Founded in 2017, Atombeam is led by co-founder, Chairman and CEO Charles Yeomans. The company develops software designed to improve how machine-generated data is transmitted, stored and processed across connected devices and enterprise networks.
Its commercial product, Neurpac, uses machine learning and a codebook-based approach to compact and encrypt data in a single process. The technology is designed to reduce network traffic and increase effective bandwidth without requiring organizations to replace existing infrastructure.
According to Atombeam, Neurpac can reduce the volume of transmitted machine data by 50% to 90%, depending on the application, with effective bandwidth improvements typically reaching approximately four times existing capacity.
Alongside Neurpac, Atombeam is developing PCM, an AI architecture intended to support continuous learning, persistent memory and real-time decision-making with lower computing requirements.
The company reported completing its first full PCM build in September 2026 and plans to conduct independent benchmarking against conventional language models in November, followed by customer pilots. PCM remains under development.
Atombeam previously announced a Regulation A+ offering in February 2026, following earlier fundraising campaigns that had generated more than $37 million.
The latest financing will support broader commercial adoption of Neurpac and continued development and testing of PCM.
