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© 2026 Lettermark Partners Limited in partnership with the BUILD IN LONDON (NATIONAL)
TRUST, a registered social enterprise in England and Wales (No. 17088725).

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Online Oceans

StartupDefenceBritish

Solar-powered autonomous surface vessels (Scout) plus Tether C2 platform for anti-submarine warfare, subsea protection and maritime border security.

Locations

London, United Kingdom

7 Bell Yard, London, WC2A 2JR, United Kingdom

Christchurch, United Kingdom (Headquarters)

Unit 10, Avro Business Park, Mosquito Way, Christchurch, Dorset, BH23 4FN, United Kingdom

Founded

2025

Team size

1-10

Primary sector

Defence

Location

7 Bell Yard, London, WC2A 2JR, United Kingdom

Online Oceans London Office - Build in London