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
FIA2026 animated banner
Babcock awarded LAFT contract extension

Defence

Babcock awarded LAFT contract extension

8 April 2026

Babcock International Group has been awarded a four year extension to its Light Aircraft Flying Task (LAFT) contract, continuing its delivery of essential military flying training to the Royal Air Force (RAF).

Vietnam Helicopter Corporation bolsters offshore operations with Airbus

Defence

Vietnam Helicopter Corporation bolsters offshore operations with Airbus

8 April 2026

The Vietnam Helicopter Corporation (VNH)’s subsidiaries, Southern Vietnam Helicopter Company (VNH South) and Northern Vietnam Helicopter Company (VNH North), have placed an order for three Airbus H225 helicopters, to support the continued expansion of its offshore energy operations, and progressively replace ageing aircraft in its fleet.

New helicopter capability delivered to British Army in Brunei

Defence

New helicopter capability delivered to British Army in Brunei

7 April 2026

Two Airbus Helicopters UK (Airbus) H145 Jupiter HC Mk2 helicopters have been delivered to the British Army in Brunei as part of a £148 million MOD programme marking the start of their journey as modern, reliable capability for operations.

FAC reviews TEKEVER

Aerospace Defence Security Events

FAC reviews TEKEVER's progress in the UK

7 April 2026

Senior representatives from the Farnborough Aerospace Consortium (FAC) recently visited AI-centric autonomous systems provider TEKEVER to see how the Portuguese company is progressing with its UK businesses.

Advertisement
ODU RT
Alexander Battery Technologies expands technical team

Aerospace Defence Security

Alexander Battery Technologies expands technical team

7 April 2026

UK battery pack manufacturer Alexander Battery Technologies has appointed five engineers and a project manager as it expands its technical team.

Babcock confirms location of Capability Centre in Plymouth

Defence

Babcock confirms location of Capability Centre in Plymouth

2 April 2026

Babcock has today confirmed the location for its new Capability Centre in Plymouth - a major milestone in plans to relocate up to 2,000 highly skilled employees into the heart of the city.

Advertisement
ODU RT
Advertisement
FIA2026 animated banner