SeaGen

What SeaGen does

SeaGen (legally Seaweed Generation Ltd) is a UK-based marine robotics and environmental technology company founded in 2021 and headquartered in Falmouth, Cornwall, with additional engineering presence in Glasgow, Scotland. The company builds AI- and solar-powered autonomous marine robots to monitor biodiversity in oceans, rivers, and lakes, and to remove carbon dioxide by collecting and sinking invasive Sargassum seaweed from the Great Atlantic Sargassum Belt to deep ocean depths. Its product platform centres on the AlgaRay autonomous solar glider (recognised as one of TIME's top inventions of 2023), the AlgaVator hydrostatic automated seaweed cultivation rig, the AlgaProbe deep-ocean mapping probe, and the Baseline data visualisation app, together forming an end-to-end observe-assess-respond stack.

The business model rests on three revenue streams: verified carbon dioxide removal (CDR) credits derived from sinking Sargassum, subscription-style environmental monitoring services delivered through the Baseline app, and professional-services technology deployment for partners needing sensors, data transmission, and ongoing observation packages. Go-to-market is direct enterprise and government sales, with channel support from carbon marketplaces including Airminers, ClimateTrade, Zopeful, Zeru Earth, and Thanks a Ton. Customers span environmental NGOs, government agencies in the Caribbean and West Africa, corporate sustainability buyers, and CDR credit purchasers; pilot deployments include Barbados (coral reef rehabilitation), Guyana (Essequibo River research), and Tanzania (Great Lakes plastics removal). Verification of carbon removals is being developed with EcoEngineers, with certification targeted within 12-24 months.

The company has secured up to £1.5 million in UK government grant funding from Innovate UK and DEFRA, and operates with a core team of approximately 10 employees. Strategic positioning combines climate impact (durable ocean CDR), environmental remediation (Sargassum removal from affected coastlines), and biodiversity monitoring for conservation partners.

Name

SeaGen

Legal name

Seaweed Generation Ltd

Website

https://seagen.io

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

11–50 employees

Short description

SeaGen builds AI-powered autonomous marine robots that monitor ocean biodiversity and remove carbon dioxide by sinking invasive Sargassum seaweed, serving governments, NGOs, and carbon credit buyers across the UK, Caribbean, and Africa.

Ownership category

akta.pro rank

Product category

Marine Robotics and Environmental Monitoring

NAICS

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), Other Aquaculture (112519), Aquaculture (11251)

SIC

Search, Detection, Navagation, Guidance, Aeronautical Sys (3812)

akta.pro primary industry

Ocean-Based Carbon Removal (Alkalinity Enhancement, Seaweed, Ocean Biomass Sinking) (EUABAFAF)

akta.pro secondary industries

Marine & Coastal Remediation (Shoreline/Port Spill Cleanup) (IMAIAGAI), Oceans, Coastal & Marine Resource Management (BPADALAI), Pollution Control & Environmental Remediation (Booming, Skimming, Shoreline Cleanup) (TLAHAIAH)

Keywords

• Ocean carbon removal
• Marine robotics
• Biodiversity monitoring
• Seaweed cultivation
• Autonomous marine vehicles

Headquarters

HQ city

Falmouth

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure, Supply Chain

Revenue model

1. Carbon Dioxide Removal Credits: SeaGen generates revenue by selling verified carbon dioxide removal (CDR) credits derived from sinking Sargassum seaweed to deep ocean depths. The company conducts pilot operations and offers early purchasers carbon removal credits with evidence uploaded to an online portal. Working toward certification for these removals within 12-24 months.
2. Environmental Monitoring Services: Provides biodiversity and environmental monitoring technology and data services to companies and communities. Partners receive real-time data streams, impact reports, and access to the Baseline app for monitoring projects.
3. Technology Deployment: Offers deployment of environmental monitoring technology including sensors (hydrophone, cameras, environmental sensors), data transmission packages, and ongoing data services for local waterway monitoring.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

SeaGen designs, builds and operates autonomous solar-powered marine robots that monitor ocean biodiversity, intercept and sink invasive Sargassum seaweed to deep ocean for permanent carbon sequestration, and cultivate seaweed at scale. The company also sells verified carbon dioxide removal credits and delivers environmental monitoring data subscriptions through its Baseline app for governments, NGOs, research institutions and corporate carbon buyers.

Product overview

SeaGen (Seaweed Generation) offers an integrated platform of marine robotics and AI-powered monitoring solutions for ocean biodiversity and carbon dioxide removal. The core product portfolio includes the AlgaRay autonomous glider for Sargassum collection and sinking, the AlgaVator automated seaweed cultivation rig, and the Baseline app for data visualization. The AlgaProbe deep ocean monitoring system complements the platform for environmental impact assessment. These products work together to enable global biodiversity monitoring, carbon dioxide removal through seaweed sinking, and sustainable seaweed cultivation for food, feed, and materials production.

Differentiator

Problem solved

Functional benefit

Brands

• AlgaRay: Autonomous, solar-powered glider that collects and repositions or sinks invasive floating seaweed (Sargassum). Voted one of TIME's top inventions of 2023.
• AlgaVator
• Baseline

Products and services

• AlgaRay Autonomous, solar-powered marine glider that collects invasive floating Sargassum seaweed from the ocean surface, sinks it to depths where hydrostatic pressure renders the biomass negatively buoyant, then ejects it below 2000m for permanent carbon sequestration. Operates at ~3 knots and includes a filtration system suitable for clearing pollutants such as plastics. Targeted at environmental organisations, government agencies and carbon removal buyers.
• AlgaVator Hydrostatic, automated seaweed cultivation rig designed to respond to the marine environment to optimise crop growth. The V1 rig includes live remote monitoring, depth control and onboard system analysis, with automated seeding and harvesting solutions under development. Aimed at producing high-protein seaweed feedstock for food, animal feed and sustainable materials markets.
• Baseline App Data visualization platform and mobile app that presents environmental and biodiversity monitoring data from SeaGen's projects in digestible and engaging ways. Provides live data streams, impact reports and ongoing project status to partners, governments, NGOs and corporate stakeholders.
• AlgaProbe Robotic deep ocean probe for sampling and monitoring, featuring buoyancy controls for multi-probe deployment across large areas. Includes CDT, pH probe, dissolved oxygen probe and camera system, with future iterations planned to incorporate sediment core and water samplers. Designed to verify the environmental impact of SeaGen's deep-sea carbon sinking operations.
• Verified Carbon Dioxide Removal Credits Verified carbon dioxide removal credits derived from sinking Sargassum biomass to >2000m depth, with evidence uploaded to an online portal and third-party verified by EcoEngineers. Sold to enterprises, carbon marketplaces and climate-focused organisations for net-zero and ESG commitments, with the co-benefit of protecting Caribbean and West African coastlines from Sargassum damage.
• Environmental Monitoring and Data Services Subscription-based deployment of sensor packages (hydrophones, cameras, environmental sensors, water quality probes) combined with ongoing data observation services and reporting through the Baseline app. Delivered to governments, NGOs, research institutions and corporate sustainability programmes for biodiversity monitoring, species tracking and water quality assessment.

Quantifiable outcome

• 100 million tonnes of Sargassum requires removal annually from Great Atlantic Sargassum Belt
• +3 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

AI capability8 records

Feature5 records

Partnerships

17 partnerships are on record, tiered supporting and core.

• Agritech CentresupportingStrategic or Co-development PartnerPartner organization supporting agricultural innovation. Nature of collaboration relates to seaweed cultivation for sustainable agriculture applications including fertilizer and animal feed.
• University of ExetercoreStrategic or Co-development PartnerThrough CSO Professor Mike Allen, SeaGen has strong academic ties to Exeter. Joint support through Accelerated Knowledge Transfer to Innovate (AKT2I) scheme. Collaboration with next-generation researchers including undergraduates, masters, and doctoral students.
• Oliver WymansupportingStrategic or Co-development PartnerGlobal management consulting firm partnership for climate and sustainability initiatives. Collaboration involves events and corporate engagement for climate-positive initiatives.
• Unreasonable ImpactsupportingStrategic or Co-development PartnerUnreasonable Group program supporting ventures solving global climate issues. SeaGen recognized as an Unreasonable company driving lasting, scalable change.
• AirminerssupportingGTM or Marketing PartnerCDR community partner supporting SeaGen through Launchpad and Boosted programmes for product development and carbon marketplace advancement.
• ZopefulsupportingGTM or Marketing PartnerCarbon removal portfolio partner working together to actively remove carbon and build a net zero carbon world.
• Thanks a TonsupportingChannel Partner/ Reseller/ DistributorClimate gifting company offering SeaGen CDR credits as gift cards, providing accessible carbon removal options for consumers.
• Zeru EarthsupportingGTM or Marketing PartnerClimate action organization providing accessible carbon footprint solutions. SeaGen joined their carbon removal portfolio.
• ClimateTradesupportingChannel Partner/ Reseller/ DistributorInnovative carbon marketplace where SeaGen joined diverse portfolio for carbon removal credits and climate impact projects.
• University of BristolsupportingStrategic or Co-development PartnerBBSRC Flexible Talent Mobility Account supporting development of hyperspectral camera payload for robots and deep sea monitoring systems.
• Centre for Innovation Excellence in Livestock (CIEL)supportingStrategic or Co-development PartnerSupporting development of SeaGen's cultivation system for large-scale high protein seaweed growth through Aquaculture Seed Funding for Industry-led Research & Innovation program.
• AbrimarsupportingStrategic or Co-development PartnerUK enterprise with expertise in novel animal feeds. Partnering on multiple projects surrounding seaweed cultivation to produce high protein poultry feed.
• South West Mull and Iona Development Trust (SWMID)supportingStrategic or Co-development PartnerCommunity partnership delivering ARABOG monitoring project on their community owned seaweed farm (largest in UK) to test farm monitoring equipment.
• AutodesksupportingTechnology or IntegrationProvided free software licenses to support SeaGen's engineering and design work.
• Cornish Seaweed CompanysupportingStrategic or Co-development PartnerAward-winning seaweed producer that shared biomass with SeaGen for research purposes.
• EcoEngineerscoreStrategic or Co-development PartnerSpecialists in eco auditing providing third-party verification of SeaGen's carbon removal activities to ensure integrity and accuracy of carbon declarations for the marketplace.
• Ocean VisionscoreStrategic or Co-development PartnerLeading organization in ocean CDR research providing advice on MRV plans and supporting macroalgae research framework development.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Running Tide: Portland, Maine-based ocean CDR company that grows and sinks macroalgae (kelp) for permanent carbon storage. Closest direct peer to SeaGen — same macroalgae sinking method, same voluntary carbon credit revenue model, and overlapping target markets in corporate CDR buyers.
• Project Vesta: Ocean CDR company deploying coastal olivine mineral weathering to enhance ocean alkalinity and sequester CO2. Direct peer in the ocean-based carbon removal category targeting the same voluntary credit buyers, though using a different (mineralization) removal pathway.
• Saildrone: Builder of wind- and solar-powered autonomous ocean vehicles for ocean data collection and marine monitoring. Direct technical peer to SeaGen's AlgaRay — both deploy autonomous, energy-harvesting marine robots for persistent ocean observation and environmental data.
• Liquid Robotics (a Boeing company): Developer of the Wave Glider, an autonomous, wave- and solar-powered ocean robot for long-duration marine data collection. Closely comparable to AlgaRay in platform architecture, persistence, and use cases in environmental and biodiversity monitoring.
• Boreal Biomas: Norway-based ocean CDR company cultivating and sinking kelp biomass for carbon removal. Direct peer in the macroalgae sinking subcategory, operating in a different (North Atlantic) geography but addressing the same voluntary CDR buyer base.

Broad incumbents

• Climeworks: Swiss direct air capture (DAC) company and one of the largest pure-play CDR vendors selling verified removal credits to enterprises. Broad incumbent in the same voluntary carbon removal market SeaGen targets, though using engineered DAC rather than ocean-based pathways.
• Heirloom Carbon: US-based CDR company using limestone-based DAC technology to deliver verified durable carbon removal credits. Broad incumbent in the engineered CDR space competing for the same corporate net-zero buyer pool as SeaGen.
• 1PointFive (Carbon Engineering): Large-scale DAC operator building the STRATOS facility in Texas to deliver industrial volumes of carbon removal credits. Broad incumbent in the voluntary CDR market and competitor for the same corporate credit buyer wallet share.
• Kongsberg Maritime: Large marine technology vendor supplying autonomous underwater vehicles, sensors, and subsea monitoring systems. Broad incumbent in marine robotics and monitoring — overlapping with SeaGen on sensor, navigation, and ocean data platform capabilities.

Others

• Pachama: Forestry- and nature-based carbon credit marketplace using satellite and AI verification. Adjacent ecosystem participant — operates in the same voluntary credit sales channel where SeaGen lists CDR credits, but on nature-based rather than ocean-based removal.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/watch?v=_0_ylz2zrcs

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SeaGen