Seaweed Concept

What Seaweed Concept does

Seaweed Concept is a French marine biotechnology company founded in 2023 and headquartered in Brittany, France (Saint Brieuc pilot workshop, Plumieux office), that supplies standardized, year-round seaweed-based ingredients to industrial B2B customers across food, agri-food, animal feed, plant production, soil management, cosmetics, and biomaterials. Its product portfolio is sold under two brands — Algood® for food applications and Lsea® for broader human, animal, and plant nutrition — spanning fermented seaweed, fermentation juice, and seaweed juice derived from five commercialized varieties (Ascophyllum, Fucus, Himanthalia, Saccharina latissima, Solieria chordalis).

The company's underlying platform combines two proprietary technology layers: (1) mobile, modular biorefinery units housed in portable containers that can be deployed on-site near seaweed resources, and (2) a patented lacto-fermentation process that preserves raw seaweed for long periods and decouples harvest timing from consumption, addressing the structural industry constraint that roughly 80% of seaweed biomass is available for only ~20% of the year. The company cites ingredient integration rates up to 50% in food applications, with measurable benefits including better cooking yields, improved Nutri-score/Ecoscore, and reduced usage of meat, eggs, fat, sugar, and salt.

Revenue is generated through direct B2B sales of ingredients to industrial manufacturers with quote-based pricing, multi-year contracts, and technical-support services to assist with reformulation; distribution is direct with multiple packaging formats (cans, buckets, outres, big bags). The company is privately held, founder-led (Sébastien Balusson, President/Founder; Damien Berdeaux, CEO; Stéphane Mahé, R&D Director), supported by a 2025 funding round from Blue Forward Fund and Seventure Partners, and embedded in the Brittany marine-biotech ecosystem via INRAE/CIRM-BIA, Bpifrance, Région Bretagne, and the Global Seaweed Coalition.

Name

Seaweed Concept

Legal name

Seaweed Concept

Website

https://seaweedconcept.com

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

1–10 employees

Short description

Seaweed Concept is a French marine biotechnology company that supplies year-round, standardized seaweed-based ingredients to industrial B2B customers across food, animal feed, agriculture, cosmetics, and biomaterials using patented lacto-fermentation and mobile modular biorefinery technology.

Ownership category

akta.pro rank

Product category

Marine biotech ingredients

NAICS

Seafood Product Preparation and Packaging (311710), Seafood Product Preparation and Packaging (31171), Other Aquaculture (112519)

SIC

Canned, Frozen & Preservd Fruit, Veg & Food Specialties (2030), Miscellaneous Food Preparations & Kindred Products (2090)

akta.pro industry

PRIMARYAFAJAHAF

Algae & Seaweed Proteins (Microalgae/Spirulina, Macroalgae)

Agriculture & Food Production/Food Ingredients & Additives/Proteins & Protein Ingredients (Plant/Animal Proteins, Protein Isolates/Concentrates)

Keywords

• Seaweed-based ingredients
• Marine biotechnology
• Lacto-fermentation processing
• Algae biorefinery
• Clean-label food ingredients

Headquarters

HQ city

Plumieux

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Seaweed Ingredient Sales (Algood® and Lsea® brands): B2B sales of high-quality seaweed ingredients including fermented seaweed, fermentation juice, and seaweed juice (fermented or not) to industrial manufacturers across multiple sectors. Products are marketed under two brands: Algood® for food ingredients and Lsea® for various applications. Pricing is competitive with demonstrated cost savings through reduced raw material costs and improved yields.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Seaweed Concept is a marine biotechnology company that supplies high-quality, standardized seaweed-based ingredients to industrial manufacturers across food, agri-food, animal feed, plant production, soil management, cosmetics, and biomaterials sectors. Using proprietary lacto-fermentation processing and mobile modular biorefinery units, the company produces fermented seaweed, fermentation juice, and seaweed juice under the Algood® and Lsea® brands, enabling year-round availability despite seasonal raw material constraints.

Product overview

Seaweed Concept is a marine biotechnology company offering a portfolio of seaweed-based ingredient brands and proprietary processing technologies. The product portfolio centers on two consumer/industrial-facing brands: Algood® for food ingredients and Lsea® for human, animal, and plant nutrition applications. Core products include fermented seaweed, fermentation juices, and seaweed juices derived from five seaweed varieties (Ascophyllum, Fucus, Himanthalia, Saccharina latissima, Solieria chordalis). Underlying these offerings is a technology platform combining mobile modular biorefinery units with patented lacto-fermentation technology, enabling year-round production and standardized quality.

Differentiator

Problem solved

Functional benefit

Brands

• Algood®: Food ingredients brand providing innovative clean-label formulation solutions for various food applications including meat products, prepared meals, baked goods, desserts, beverages, and sauces.
• Lsea®

Products and services

• Algues fermentées (Fermented Seaweed) Fermented seaweed products preserved through lacto-fermentation process that enhances nutritional and functional value while enabling long-term storage. Sold under the Algood® and Lsea® brands to industrial manufacturers in food, agri-food, animal feed, cosmetics, and biomaterials sectors.
• Jus de fermentation (Fermentation Juice) Fermentation juices produced as a byproduct of the lacto-fermentation process, containing bioactive metabolites of interest for various industrial applications across food, feed, cosmetics, and biomaterials.
• Jus d'algues (Seaweed Juice) Seaweed juice, either fermented or non-fermented, serving as a versatile ingredient for food, cosmetic, and industrial applications. Standardized and available year-round at competitive prices.
• Algood® (Food Ingredients Brand) Sub-brand providing innovative clean-label formulation solutions that help reduce additives and improve nutritional and sensory quality. Can be incorporated up to 50% in recipes for meat products, prepared meals, baked goods, desserts, beverages, and sauces.
• Lsea® (Multi-Application Ingredients Brand) Sub-brand for seaweed-based ingredients targeting human nutrition, animal feed, and plant production markets. Provides standardized, high-quality ingredients available year-round at competitive prices.

Quantifiable outcome

• Integration up to 50% in food applications
• +3 more outcomes

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Algroupe SAScoreStrategic or Co-development Partner · 1 June 2024Seaweed Concept integrated Algruppe in June 2024, whose founder Stéphane Mahé joined the team as R&D Director. The union combines Seaweed Concept's innovative industrial biorefinery approach with Algruppe's patented algae lacto-fermentation technology, preserving algae while improving nutritional and functional value.
• INRAE (CIRM-BIA)coreStrategic or Co-development Partner · 1 January 2023INRAE is a privileged research partner working closely with Seaweed Concept. Research projects are underway with CIRM-BIA (Biological Resources Center) to develop and optimize the seaweed fermentation process. Florence Valence-Bertel, Director of CIRM-BIA, notes fermentation enables decoupling of harvest and consumption timing with huge investigation potential.
• Région BretagneminorStrategic or Co-development PartnerRegional government partner providing support for company development in Brittany, France.
• CEVAminorStrategic or Co-development PartnerPartner organization contributing to Seaweed Concept's ecosystem of scientific and commercial collaborations.
• Cluster AlguesminorStrategic or Co-development PartnerAlgae industry cluster partner providing network and collaborative opportunities within the seaweed sector.
• Global Seaweed CoalitionminorStrategic or Co-development PartnerInternational coalition partner working on seaweed industry development and sustainability initiatives.

Scale indicators3 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Algaia: French seaweed extracts company producing alginates, fucoidans and other marine ingredients for food, nutraceuticals and personal care. Direct comparable: same geography, same raw material, same B2B ingredient model.
• Acadian Seaplants: Canadian-headquartered global supplier of seaweed-based extracts for crop nutrition, animal feed and food. Closest direct peer: established player in seaweed ingredients across multiple verticals similar to Seaweed Concept's customer base.
• Ocean Harvest Technology: Irish company producing seaweed-based ingredients specifically for animal nutrition. Direct comparable in the Lsea® animal feed vertical.
• Algea (Valagro / Syngenta): Italian seaweed-based biostimulant brand, now part of Syngenta/Valagro. Directly comparable in seaweed-based plant production and soil management ingredients.
• BioAtlantis: Irish biotech producing seaweed extracts for crop science, animal health and human nutrition. Comparable as smaller specialist in seaweed-based functional ingredients across multiple verticals.

Broad incumbents

• Diana Food (Symrise Diana): Subsidiary of Symrise offering natural food ingredients including seaweed-based extracts for flavor and nutrition. Comparable as broad incumbent with overlapping seaweed ingredient portfolio serving food manufacturers.
• CP Kelco: Global leader in alginate, carrageenan and pectin from seaweed for food and personal care. Comparable as large incumbent offering seaweed-derived hydrocolloids to overlapping industrial customer base.
• Cargill (seaweed/seaourced ingredients): Global agricultural commodity and ingredient giant with expanding marine and algae ingredient offerings. Broad incumbent competing for the same B2B ingredient wallet.

Emerging players

• AtSea Technologies: European biotech developing functional seaweed ingredients for animal feed and aquaculture. Emerging peer focused on seaweed fermentation, intersecting Seaweed Concept's lacto-fermentation approach.
• Mara Renewables: Canadian algae biotechnology company producing DHA oils and microalgae-based food ingredients. Emerging peer in marine biotechnology ingredient space, though focused on microalgae rather than macroalgae.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds1 record

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 Seaweed Concept