Advancing UK Aerospace, Defence, Security & Space Solutions Worldwide
  • Home
  • /
  • Defence
  • /
  • ACUA Ocean secures £5.5m to deliver world’s most advanced open ocean USV

Defence Security

ACUA Ocean secures £5.5m to deliver world’s most advanced open ocean USV

Plymouth-based autonomous unmanned surface vessel (USV) developer ACUA Ocean has closed its £1.5 million Pre-Seed investment round co-led by StealthPoint and Britbots, alongside securing £4 million in new and existing research and development grants from the UK’s Department for Environment, Food & Rural Affairs (DEFRA) and Department for Transport.

Above: (left to right) ACUA Ocean Co-Founders, Mike and Neil Tinmouth.
Courtesy ACUA Ocean

The pre-seed round, led by StealthPoint, a US defence and intelligence investor deploying capital into hardware and software innovators, focusing on strengthening national security for the US and its allies.
 
The round also saw investment from the UK early-stage investor in robotics and automation, BritBots and sees ACUA Ocean join an exclusive portfolio of pioneering firms such as QLM Tec and Humanising Autonomy. Sixth Wave Ventures and Blue Action Accelerator also participated in the round.
 
The venture investment commitments add to the £4 million grant funding secured by ACUA Ocean from UK government bodies, which included a successful application to the Department for Transport’s Clean Maritime Demonstration Competition and Smart Shipping Acceleration Fund and a successfully completed grant from DEFRA relating to the Improving Marine Observation and Biodiversity programme, a government-led scheme focused on building comprehensive solutions for data collecting, processing and analysing remotely in real-time.

Advertisement
ODU RT

ACUA Ocean is currently developing its open ocean platform Pioneer-class USV, which can operate in very high sea states relative to its size, enabling systems and sensor payloads to be deployed in wave heights exceeding four metres (13ft). The prototype USV is hydrogen-powered, although there are plans for optional fuel powertrains in subsequent platforms. Pioneer will act as a platform or “mothership” providing the modular payload capacity, power and communications necessary for the launch and recovery of technologies, including remotely operated vehicles (ROVs),  Autonomous underwater vehicles (AUVs) and unmanned aerial vehicles (UAVs).

ACUA Ocean’s approach to ‘interchangeable nested robotics’ will replace the need for larger, more costly crewed vessels to do dull, dirty and dangerous tasks, such as subsurface surveys, monitoring and protection of critical offshore infrastructure.

Advertisement
ODU RT

Commenting on the latest investment, ACUA OCEAN Co-Founder Neil Tinmouth said: “We’re excited to be collaborating with a visionary group of venture investors who share our passion for dual-use ocean technology.

"The combination of the rapid growth in offshore renewables, regional geopolitical uncertainty and threats to our marine biodiversity mean customers are increasingly seeking out vessels that can provide enhanced open ocean capabilities like the Pioneer.”

Advertisement
General Atomics LB
LEDsynergy partners with LEDX Technology

Aerospace Defence Security

LEDsynergy partners with LEDX Technology

8 May 2026

Andover based LEDsynergy, a long-established UK manufacturer of LED display solutions, has announced a strategic manufacturing partnership with India’s LED display manufacturer LEDX Technology, marking a significant step forward in its global production strategy.

Vision Engineering to showcase high-tech solutions at Smart Factory Expo

Aerospace Defence Events

Vision Engineering to showcase high-tech solutions at Smart Factory Expo

8 May 2026

UK based designer and manufacturer of high-tech ergonomic optical and digital inspection, metrology systems and bespoke engineering solutions, Vision Engineering Group, has revealed its expansive showcase for the upcoming Smart Factory Expo, taking place next month at the NEC in Birmingham from 3rd-4th June 2026.

ADS supports SMEs reinforcing UK defence capability

Defence Events

ADS supports SMEs reinforcing UK defence capability

8 May 2026

ADS recently hosted 'The Future Starts Small' in partnership with RC Fornax, bringing together SMEs, MoD stakeholders and defence leaders for a focused discussion on the future of UK defence capability.

Belfast boosts FSS programme

Defence

Belfast boosts FSS programme

7 May 2026

Navantia UK today welcomed Commodore Sam Shattock RFA, Commodore Royal Fleet Auxiliary and Rear Admiral Matthew Stratton, Director Naval Acquisition, to its Harland & Wolff shipyard in Belfast to see progress on the Fleet Solid Support (FSS) programme.

Advertisement
ODU RT
Royal Navy uses tech for operational edge in Information Warfare

Defence Events

Royal Navy uses tech for operational edge in Information Warfare

7 May 2026

Navy Digital – the Service’s experts in digital capabilities, skills and Information Warfare – and other specialists from across the Royal Navy, teamed up with industry partners to test off-the-shelf cutting-edge technology that, when linked together, creates a ‘mesh network’ which can be deployed to enable front line operations.

MoD awards £6m eLoran concept contract to Team Elaris

Defence

MoD awards £6m eLoran concept contract to Team Elaris

7 May 2026

QinetiQ-led Team Elaris has been awarded a £6 million contract with the UK Ministry of Defence (MoD) to develop a deployable solution concept for enhanced Long-Range Navigation (eLoran).

Advertisement
ODU RT
Advertisement
Hexagon leaderboard