Delta g

Based in Birmingham, United Kingdom, Delta g develops portable quantum gravity sensors designed for underground mapping, imaging, and navigation without the need for physical excavation. The company commercializes specialized hardware that utilizes gravity gradient signals to detect buried structures, targeting commercial applications across the infrastructure, transportation, environmental monitoring, and defense sectors. The enterprise leverages proprietary intellectual property derived from more than £20 million in publicly funded research conducted over a decade at the UK government's Quantum Hub. In 2025, the hardware developer secured £4.6 million in an oversubscribed seed funding round led by Serendipity Capital, with additional equity participation from NSSIF and SCVC. Delta g was officially established as a spinout from the University of Birmingham in 2023 by scientific co-founders Mike Holynski, Jonathan Winch, and Andrew Lamb alongside chief executive officer Tony Lowe.