Seafields Solutions

Name

Seafields Solutions

Legal name

Seafields Solutions Ltd.

Website

https://seafields.eco

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Sustainable Seaweed Biomass & Carbon Removal

NAICS

Aquaculture (11251), Other Aquaculture (112519)

SIC

Fishing, Hunting And Trapping (900)

akta.pro primary industry

Seaweed & Algae Aquaculture (incl. microalgae) (AFAEAAAE)

akta.pro secondary industries

Ocean-Based Carbon Removal (Alkalinity Enhancement, Seaweed, Ocean Biomass Sinking) (EUABAFAF), Algae & Seaweed Proteins (Microalgae/Spirulina, Macroalgae) (AFAJAHAF), Seaweed Hydrocolloids (Agar, Carrageenan, Alginates) (AFAJAMAD)

Keywords

• Sargassum seaweed management
• Ocean carbon removal
• Sustainable biomass supply
• Coastal protection services
• Seaweed biostimulants

Headquarters

HQ city

Stockport

HQ country

United Kingdom

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Sargassum Management Fees: Primary near-term revenue stream from intercepting Sargassum at sea and managing it for Caribbean hotels and governments. Over the next two years, Seafields anticipates the majority of revenue will come from Sargassum management fees.
2. Biomass Sales (Dried Pulp): Supplying dried Sargassum pulp to biorefineries for green products. Any unsold pulp is converted into biochar. Seafields provides Sargassum biomass as a feedstock for manufacturers with traceable supply chains.
3. Biostimulant Licensing: Processing fresh Sargassum into natural biostimulants under license from Carbonwave. Revenue share opportunities with partners for biostimulant products.
4. Biochar and Carbon Credits: Converting unsold or waste Sargassum pulp into biochar through partners like RubisCO2 and MacroCarbon. Biochar carbon credits have established methodologies and can go to market immediately. Carbon credits anticipated to remain less than 10% of revenue.
5. Refined Polysaccharides: Revenue share opportunities from partners producing refined alginates, fucoidans and other polysaccharides from Sargassum biomass.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

Seafields Solutions intercepts pelagic Sargassum seaweed blooms at sea before they reach shorelines, holds the biomass in proprietary AlgaePonix Smart Paddocks to preserve freshness, and processes it into downstream products including biostimulants, dried pulp, biochar, and verified carbon credits. The company's SeaClear and SeaGrow solutions extend the offering into nearshore aquafarming and shore-based seaweed cultivation for Caribbean hospitality, government, and bio-based product customers.

Product overview

Seafields operates a multi-product portfolio centered on transforming problematic Sargassum seaweed blooms into sustainable resources through the circular economy. The core offering consists of SeaClear and SeaGrow nearshore moored aquafarm systems that intercept Sargassum before it reaches coastlines. Caught seaweed is stored year-round in proprietary AlgaePonix smart paddocks and then processed into multiple value streams: biostimulants for agriculture (under Carbonwave license), dried pulp for biorefineries producing bioplastics and biofuels, and biochar for construction materials and carbon sequestration. The company also generates carbon credits from biochar production. This integrated approach provides coastal protection services while supplying sustainable feedstock to manufacturers.

Differentiator

Problem solved

Functional benefit

Products and services

• AlgaePonix Smart Paddocks Proprietary offshore storage infrastructure that captures and holds Sargassum blooms at sea, preserving freshness for downstream processing; deployed for the company's biomass supply operations.
• SeaClear Solution Combined AlgaePonix paddock and Stommel Pipe upwelling system marketed to Caribbean hotels to reduce coastal Sargassum landings and improve nearshore water quality.
• SeaGrow Solution Seabed-anchored Sargassum farming product that grows seaweed offshore to generate verified carbon credits for corporate offset buyers.
• Sargassum Biostimulants Agricultural biostimulant produced from processed Sargassum biomass, supplied via partner Carbonwave to fertilizer, turf, and crop input markets.
• Sargassum Dried Pulp Dried, processed Sargassum biomass supplied as a renewable feedstock to manufacturers of compostable packaging, bioplastics, textiles, and paper products.
• Sargassum Biochar Pyrolysis-derived biochar from processed Sargassum, supplied to partner PyroTex for soil amendment and carbon sequestration applications.
• Verified Carbon Credits Verified carbon credits from Sargassum capture and SeaGrow offshore farming, sold via partner Carbon Growth Partners to corporate net-zero buyers.

Quantifiable outcome

• 107 tonnes CO2 per hectare per year sequestration rate vs 7 tonnes for mangroves
• +3 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability1 record

Feature4 records

Partnerships

Eleven partnerships are on record, tiered flagship, core and minor.

• ColdplayflagshipGTM or Marketing Partner · 1 January 2024Coldplay named Seafields as an associated organisation for their Music Of The Spheres World Tour. The band allocates 10% of all earnings (touring, records, publishing) to environmental causes, including Seafields.
• CarbonwavecoreStrategic or Co-development PartnerCarbonwave is the largest processor of Sargassum. Seafields owns a small stake in Carbonwave and operates under license from them for biostimulant processing. Carbonwave produces Sarga Agriscience biostimulants, SeaBalance cosmetics emulsifier, and is developing vegan leathers from Sargassum.
• RubisCO2coreStrategic or Co-development PartnerSeafields partners with RubisCO2 to convert unsold Sargassum pulp into biochar for sustainable agriculture and carbon sequestration, generating biochar carbon credits.
• MacrocarboncoreStrategic or Co-development PartnerMacrocarbon (led by Dr. Mar Fernández-Méndez) offers an efficient approach to cultivating and processing seaweed for industrial use, including bioplastics and biochar production.
• Origin by OceanminorStrategic or Co-development PartnerPartner company working on seaweed-based sustainable products including bioplastics.
• Montrose Investment HoldingscoreStrategic or Co-development PartnerProject partnership in St. Vincent and the Grenadines for Sargassum management initiatives.
• Ocean VisionscoreStrategic or Co-development PartnerSeafields is part of Ocean Visions coalition of Ocean CDR researchers and practitioners, a collaborative incubator supporting innovators competing for Elon Musk's US$100 million XPRIZE.
• BASF (via Sprin-D grant)minorStrategic or Co-development PartnerChemical company partnered through a collaborative Sprin-D grant awarded by the German government for research and development.
• SeedsmanminorStrategic or Co-development PartnerPartner company for sustainable seed and agricultural products.
• United Nations Global Compact Safe Seaweed CoalitioncoreStrategic or Co-development PartnerSeafields is a member of the UN Global Compact Safe Seaweed Coalition, an industry sustainability initiative.
• World Ocean CouncilminorStrategic or Co-development PartnerSeafields is a member of the industry sustainability-focused World Ocean Council.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Kelp Blue: Large-scale kelp farming company producing biostimulants, textiles, and food. Comparable in applying offshore aquaculture to produce multiple downstream bioeconomy products, with similar verticalization strategy.
• Running Tide: US-based ocean CDR company that grows and sinks kelp for carbon removal. Closest analog in business model (seaweed farming + ocean-based CDR) even though species and geography differ — both target voluntary carbon markets at gigatonne scale.
• RubisCO2: Biochar production partner of Seafields that converts Sargassum pulp into biochar for agriculture and carbon sequestration. Direct overlap in biochar processing technology and customer base.
• Origin by Ocean: Finnish company developing seaweed-based bioplastics and bio-based ingredients. Seafields explicitly lists Origin by Ocean as a partner and competes in the same seaweed-to-bioplastics feedstock space, with overlapping downstream product markets.
• Carbonwave: Carbonwave is the largest processor of Sargassum, producing biostimulants (Sarga Agriscience), cosmetics emulsifiers, and vegan leathers. It is both a direct competitor for Sargassum biomass and Seafields' upstream partner/licensor for biostimulant processing — making it the single most comparable peer in the Sargassum value chain.
• MacroCarbon: Seaweed-to-biochar company led by Dr. Mar Fernández-Méndez (who is also a Seafields Scientific Advisor). Operates at the same intersection of seaweed biomass and biochar carbon credits, and shares R&D leadership with Seafields.

Emerging players

• AlgiKnit: Materials company producing kelp-based textile fibers. Comparable downstream market (sustainable materials) sourced from cultivated seaweed, though different end-product focus.
• Phykos: Seaweed biotech startup focused on algae-derived biostimulants and biopolymers. Overlaps with Seafields in seaweed-to-biostimulant product strategy but at earlier stage and different species.
• Coral Vita: Caribbean-based marine restoration company using aquaculture-adjacent techniques to grow coral for reef restoration. Overlaps in Caribbean operating geography, marine biology expertise, and B2G/B2B sales motion to coastal stakeholders.
• PlanBlue: Ocean monitoring/seafloor mapping startup using satellite and in-situ sensing. Adjacent technology overlap with Seafields' sensing-equipped AlgaePonix paddocks and digital-twin optimization layer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/SeafieldsSL

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds3 records

Investors2 records

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 Seafields Solutions