Raised in 2026 · Worldwide

Ocean tech startups that raised in 2026

56 ocean tech startups raised money in 2026 in rounds we track, $3.0B between them this year. Each sits in the segment that says what it does, ranked by what it raised this year.

56startups on the map
6segments
$3.0Braised between them in 2026
Shipping and portsmost funded segment

Shipping and ports

27

+3 more

Aquaculture and fisheries

9

Seaweed and algae

6

Ocean energy

6

Ocean data and robotics

4

Ocean carbon and restoration

4

Segment by segment

Shipping and ports

27 startups · $2.2B raised

  1. SaronicSaronic designs and manufactures unmanned surface vehicles for maritime security and domain awareness.United States$1.8B
  2. QuartermasterQuartermaster is a maritime technology company focused on enhancing real-time maritime domain awareness.United States$183M
  3. Spire GlobalSpire Global is a space to cloud data analytics company utilizing satellites to provide maritime, aviation, and weather tracking.United States$70M
  4. Optics11Maritime Defense and Energy SolutionsNetherlands$56M
  5. FleetzeroFleetzero is building battery electric cargo ships to affordably decarbonize ocean freight.United States$43M
  6. VessevVessev is a sustainable marine technology startup based in Auckland, New Zealand, founded in 2017.New Zealand$19M
  7. Daphne TechnologyDaphne Technology is a Swiss climate deep-tech company founded in 2017, focused on reducing methane emissions and other pollutantsSwitzerland$19M
  8. AndrenamAndrenam is a defense and space manufacturing company based in Hawthorne, California, founded in 2024.United States$18M

Aquaculture and fisheries

9 startups · $112M raised

  1. LAXEYLAXEY specializes in sustainable land-based aquaculture and the development of fish farming facilities.Iceland$54M
  2. TARGANTARGAN is a bio-systems company focused on improving animal health and productivity in the poultry, livestock, and aquaculture industries.United States$30M
  3. BiosortBioSort is a Norwegian aquaculture technology company founded in 2010 and based in Fornebu, Norway.Norway$11M
  4. AquaExchangeAquaExchange Agritech Private Limited is an innovative agritech and aquaculture technology startup based in Bhimavaram, Andhra PraIndia$8.0M
  5. AquapulseAquapulse, operating under Phoenix Marine Exports and Solution Private Limited, is an innovative aqua-tech company focused on tranIndia$4.7M
  6. Nernst ElectricNernst Electric is transforming how oxygen is produced and delivered to aquaculture and the industries that need it.Ireland$2.0M
  7. Óir na FarraigeÓNF is a pioneering seaweed aquaculture venture.Ireland$1.8M
  8. SmoltSmolt is a startup that performs its own recycling type aquaculture of Sakura Mouth.Japan$1.3M

Seaweed and algae

6 startups · $45M raised

  1. NotplaNotpla is a London-based sustainable packaging startup founded in 2014 by Rodrigo García González and Pierre Paslier.United Kingdom$27M
  2. Aqua TheonAqua Theon Inc.United States$13M
  3. Coast 4CCoast 4C is revolutionizing sustainable seaweed supply.Philippines$2.5M
  4. SoarceSoarce synergizes seaweed and nanotechnology to produce high performing, protective, and low-carbon fabrics and leathers.United States$2.0M
  5. ZeroCircleZerocircle is a Pune-based cleantech and biotechnology startup founded in 2020.India$546K
  6. SUNSHIKIWe are a seaweed innovation company.Japan$501K

Ocean energy

6 startups · $398M raised

  1. PanthalassaPanthalassa is a public-benefit corporation based in Portland, Oregon, founded in 2016.United States$365M
  2. AtomarineAtomarine builds floating, modular offshore data center barges cooled by seawater and powered by standalone vessels to bypass land grids.United States$20M
  3. Caudal EnergyCaudal Energy is a UK-based renewable energy startup and an Oxford University spinout, founded in 2024.United Kingdom$5.8M
  4. X1 WindX1 Wind is a floating offshore wind technology developer based in Barcelona, Spain, founded in 2017.Spain$5.1M
  5. Aikido TechnologiesAikido Technologies is a San Francisco-based startup founded in 2022 that specializes in developing self-erecting floating offshorUnited States$1.7M
  6. XmoorXmoor specializes in machine learning-powered tools for rapid dynamic analysis of floating offshore structures.United Kingdom$533K

Ocean data and robotics

4 startups · $155M raised

  1. EnshoreEnshore is a UK based subsea trenching company, providing seabed intervention services to mega-projects across industry around the world.United Kingdom$138M
  2. Apeiron labsApeiron Labs is a company based in Cambridge, Massachusetts, founded in 2022.United States$9.5M
  3. Deep Sea Rare MineralsDeep Sea Rare Minerals is a mineral exploration company that develops subsea mineral resources.United States$5.0M
  4. cosmaCosma is a French deeptech startup founded in February 2022, specializing in the inventory and monitoring of benthic ecosystems usFrance$2.4M

Ocean carbon and restoration

4 startups · $86M raised

  1. Terraform IndustriesTerraform Industries is a bet on cheap solar, synthetic hydrocarbon supremacy, and hyperscale.United States$38M
  2. PPlanetaryPlanetary develops ocean-based carbon removal technology to accelerate the natural carbon cycle.Switzerland$21M
  3. GigablueGigablue is a marine carbon dioxide removal (mCDR) company based in New York, NY, founded in 2022.United States$20M
  4. OuterOuter is a Santa Monica-based outdoor furniture brand founded in 2017.United States$8.0M

How this map is made. Every startup here has raised money in rounds we track, and raised in 2026. It joins the map when its sectors, read from its rounds, or the opening of its own description say it works in ocean tech, and goes to the first segment whose words it carries. Each segment shows its biggest raisers this year first. Rebuilt nightly; updated 15 November 2026.

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