Cerca Magnetics develops wearable brain imaging systems based on optically pumped magnetometer magnetoencephalography. The company is a University of Nottingham spinout and sits within neuroimaging, with a focus on making functional brain imaging more flexible, movement-tolerant, and usable across a wider range of participants. Its system is currently offered for research use, while the company is progressing toward clinical approval pathways in the UK and United States.

Its OPM-MEG system uses lightweight quantum sensors placed close to the scalp to measure magnetic fields generated by neural activity. The wearable setup can be adapted to different head sizes and supports scanning during more natural movement, including in pediatric and other hard-to-scan populations. This gives the system a different practical profile from conventional cryogenic MEG infrastructure, which requires liquid-helium-cooled sensors and fixed scanner environments.

Cerca serves neuroscience research centers and has sold systems across multiple international markets. Public materials describe applications in epilepsy, dementia, concussion, pediatric neuroimaging, and broader functional brain research. The company is best understood as a commercial OPM-MEG developer translating quantum sensing into deployable functional neuroimaging infrastructure.