Delta g Limited

Delta g Limited is a UK quantum sensing company focused on gravity-based spatial intelligence. Its website says it develops quantum sensors that use gravity to support mapping, navigation, and subsurface discovery, including use in underground, subsea, indoor, and GPS-denied environments.

The company describes its core product approach as quantum gravity gradiometry. According to the site, its patented “hourglass” architecture stacks two atom interferometers vertically and uses cooled rubidium atoms and lasers to measure small differences in gravity. Delta g says this design is being advanced under UK Department for Transport contracts for portable field deployment at TRL7/8.

The homepage also states that Delta g secured a £4.6 million oversubscribed seed round led by Serendipity Capital, with participation from NSSIF and SCVC. Its address is listed at Birmingham Research Park in Birmingham, and the copyright notice identifies the business as Delta g Limited.