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
MGI Engineering expands into Italy with Vigilar Group

Aerospace Defence Security

MGI Engineering expands into Italy with Vigilar Group

5 June 2026

Oxfordshire based MGI Engineering has entered into a strategic partnership with Vigilar Group, marking MGI’s expansion into Italy and a significant new phase of growth across Europe.

Janes awarded £17.5m Enterprise Agreement Lite by UK MoD

Defence

Janes awarded £17.5m Enterprise Agreement Lite by UK MoD

5 June 2026

Janes has been awarded a three-year Enterprise Agreement Lite (EAL), valued at up to £17.5 million, by the UK Ministry of Defence (MoD), to provide comprehensive, unclassified and up-to-date technical intelligence on military equipment across air, sea, land and space domains.

Farnborough International Airshow reveals first wave of 2026 flying display

Aerospace Defence Events

Farnborough International Airshow reveals first wave of 2026 flying display

4 June 2026

Farnborough International Airshow (FIA) has announced the first of many aircraft and teams taking part in its 2026 flying display, which is set to be its largest and most diverse in decades.

UTAC Special Vehicles produces 1,000th armoured vehicle

Defence Security

UTAC Special Vehicles produces 1,000th armoured vehicle

4 June 2026

UTAC Special Vehicles has reached the milestone of producing its 1,000th armoured vehicle at the division’s headquarters at Millbrook, Bedfordshire, UK.

Advertisement
ODU RT
Advanced underwater tech to be developed for AUKUS forces

Defence

Advanced underwater tech to be developed for AUKUS forces

3 June 2026

Pioneering technologies deployed from uncrewed underwater vessels were announced by AUKUS Defence Ministers at a meeting in Singapore last weekend. which pushed forward progress in the trilateral security partnership between Australia, the UK and US.

DSEI Germany adds fourth exhibition hall

Defence Security Space Events

DSEI Germany adds fourth exhibition hall

3 June 2026

The organisers of DSEI Germany have announced that, due to unprecedented industry demand, they will be opening a fourth exhibition hall ahead of its debut in March 2027.

Advertisement
ODU RT
Advertisement
FIA2026 animated banner