OTAQ plc, formerly Hertsford Capital PLC, is a United Kingdom-based marine technology company. The Company is focused on the marine aquaculture, offshore energy, renewables and oceanographic research sectors. The Company’s marine technology portfolio includes an intelligent acoustic deterrent system, designed to protect marine-based aquaculture sites from predation, with multiple systems deployed in Scotland, Chile, Finland and Russia. It offers the Oceansense leak detection systems and the Dragonfish laser measurement system. OTAQ also designs & manufactures underwater connectors, penetrators & communication systems.