The Quantum Insider reviewed more than 15 companies active in quantum sensing as of 2026. The overview highlights Vector Atomic's claimed GPS-accuracy improvements, Atomionics' Gravio cold-atom gravimeter and Exail's Absolute Quantum Gravimeter deployed at Mount Etna.
The compilation shows the sector moving from laboratory work toward field deployments and commercial products. Performance figures are based on the relevant companies' statements.
Source: The Quantum Insider, 10.04.2026 — https://thequantuminsider.com/2026/04/10/overview-15-plus-key-quantum-companies-2026/