The company's core technology relies on a novel laser cooling technique called supermolasses, which traps atoms near absolute zero without an applied magnetic field. This reduces the size, weight and power consumption of the resulting devices compared to conventional cold atom systems. Aquark builds quantum clocks and sensor hardware for applications where GPS signals are unavailable, unreliable or subject to jamming, including military navigation, critical communications infrastructure and underwater operations.

Aquark was the first company from NATO's DIANA accelerator cohort to receive investment from the NATO Innovation Fund, and the first quantum technology company the fund has backed. The company has completed multiple world-first field trials, including sea trials aboard Royal Navy vessels and an underwater cold atom trapping demonstration. Its AQlock atomic clock is the first commercially available cold atom clock built in the UK.