The Global Brown Seaweed Extract Market was valued at USD 482.7 Million in 2024 and is projected to reach USD 775.3 Million by 2030, growing at a Compound Annual Growth Rate (CAGR) of 8.2% during the forecast period (2024–2030). This robust growth is propelled by the rising demand for natural and organic agricultural inputs, the expanding nutraceutical and pharmaceutical industries, and the increasing consumer awareness of sustainable and plant-based products.

As the global market shifts toward bio-based solutions for agriculture, health, and wellness, the key players in the brown seaweed extract industry are leading the charge with innovative formulations and sustainable harvesting practices. In this blog, we profile the Top 10 Companies in the Brown Seaweed Extract Market—a dynamic group of producers, innovators, and suppliers shaping the future of this vital natural ingredient.

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🔟 1. Acadian Seaplants Limited

Headquarters: Dartmouth, Nova Scotia, Canada
Key Offering: ASC® and Seaweed Concentrate® extracts for agriculture, turf, and horticulture.

Acadian Seaplants is a globally recognized pioneer in the seaweed extract industry, with over 50 years of experience. The company sustainably harvests the North Atlantic rockweed, Ascophyllum nodosum, utilizing proprietary cold-water extraction processes to preserve bioactive compounds. Their products are renowned for enhancing crop yield, stress tolerance, and soil health.

Sustainability & Innovation Initiatives:

• Certified sustainable harvesting practices by the Marine Stewardship Council (MSC)
• Significant investment in R&D for plant science and biostimulant efficacy
• Global partnerships with agricultural distributors and research institutions

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9️⃣ 2. Biostadt India Limited

Headquarters: Mumbai, Maharashtra, India
Key Offering: OMEX® range of seaweed-based biostimulants and biofertilizers.

Biostadt is a leading Indian agrochemical company with a strong portfolio of biological products. Through its OMEX brand, it supplies high-quality brown seaweed extracts that help improve nutrient uptake, root development, and overall plant vigor. The company has a robust distribution network across India and key international markets.

Sustainability & Innovation Initiatives:

• Focus on integrated crop management solutions that reduce chemical fertilizer dependency
• Development of customized seaweed extract formulations for different crops and climates
• Commitment to promoting sustainable agriculture in emerging economies

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8️⃣ 3. Brandt Consolidated, Inc.

Headquarters: Springfield, Illinois, USA
Key Offering: Brandt Smart Trio, Manni-Plex® technology-based seaweed extracts.

Brandt is a major US-based agricultural company specializing in specialty fertilizers and plant health products. Its proprietary Manni-Plex technology enhances the delivery of nutrients combined with brown seaweed extracts, improving plant growth and stress resistance under challenging environmental conditions.

Sustainability & Innovation Initiatives:

• Patented technology for increased bioavailability of nutrients and bioactive compounds
• Strong focus on research to improve crop productivity and sustainability
• Strategic acquisitions to expand global footprint in the biologicals market

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7️⃣ 4. Gelymar S.A.

Headquarters: Puerto Montt, Chile
Key Offering: Agar, carrageenan, and seaweed extracts for agriculture, food, and cosmetics.

Gelymar is a leading global producer of marine-derived hydrocolloids and extracts, with a strong focus on sustainably sourced brown seaweed from the pristine waters of Chile. The company’s agricultural extracts are valued for their high concentration of alginates and natural growth promoters.

Sustainability & Innovation Initiatives:

• Sustainable wild harvesting and cultivation practices certified by international bodies
• Investment in green extraction technologies to minimize environmental impact
• Tailored solutions for the organic farming sector

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6️⃣ 5. Algaia SA

Headquarters: Lannilis, France
Key Offering: VAIKALGA range of seaweed-based biostimulants and fertilizers.

Algaia, a subsidiary of the Roullier Group, specializes in seaweed-based solutions for agriculture and industry. The company leverages expertise in alginate extraction to create effective biostimulants that enhance soil structure and plant resilience. Its products are widely used in Europe and other key agricultural regions.

Sustainability & Innovation Initiatives:

• Focus on circular economy principles within its production processes
• Development of precision agriculture solutions using seaweed extracts
• Part of a larger group with a strong commitment to sustainable marine resource management

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5️⃣ 6. Humates and Seaweeds Pty Ltd

Headquarters: Gosford, New South Wales, Australia
Key Offering: SeaSol® liquid seaweed concentrate and blended soil health products.

Humates and Seaweeds is a prominent Australian manufacturer of organic soil conditioners and plant health products. Their flagship SeaSol product is a concentrated liquid seaweed extract derived from Tasmanian bull kelp, known for its high potency and effectiveness in stimulating plant growth and microbial activity in the soil.

Sustainability & Innovation Initiatives:

• Sustainable harvesting of wild Tasmanian kelp beds
• Long-standing reputation for product quality and efficacy in organic farming
• Commitment to supporting regenerative agricultural practices

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4️⃣ 7. West Coast Marine Bio-Processing Corp.

Headquarters: Vancouver, British Columbia, Canada
Key Offering: Pacific Ocean-based liquid and powdered seaweed extracts.

This Canadian company specializes in processing seaweed harvested from the nutrient-rich waters of the Pacific Northwest. Their extracts are used in agriculture, animal feed, and health supplements, capitalizing on the unique profile of bioactive compounds found in local brown seaweed species.

Sustainability & Innovation Initiatives:

• Sustainable wild-harvesting protocols with a focus on ecosystem preservation
• Development of value-added products for niche markets, including organic certification
• Collaborations with academic institutions on seaweed cultivation research

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3️⃣ 8. Seasol International Pty Ltd

Headquarters: Bayswater, Victoria, Australia
Key Offering: Seasol® and PowerFeed® seaweed-based garden and agricultural products.

Seasol International is a household name in Australia and a major exporter of seaweed-based plant health products. The company uses a unique cold-processing method to create its extracts, which are trusted by home gardeners and commercial growers for promoting strong root systems and healthy plant growth.

Sustainability & Innovation Initiatives:

• Over 40 years of experience in seaweed extract manufacturing
• Strong consumer brand loyalty and extensive retail distribution
• Ongoing product innovation for both ornamental and edible crops

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2️⃣ 9. Leili Marine Bioindustry Inc.

Headquarters: Qingdao, Shandong, China
Key Offering: Seaweed extract powders and liquids for agriculture, food, and cosmetics.

Leili is one of China’s largest and most vertically integrated seaweed processing companies. It has a significant presence in the global market, supplying a wide range of brown seaweed-derived products, including alginates and high-purity extracts for the agricultural biostimulant sector.

Sustainability & Innovation Initiatives:

• Large-scale cultivation capabilities to ensure consistent supply and reduce pressure on wild stocks
• Advanced R&D facilities focused on new applications for seaweed extracts
• Compliance with international quality standards for export markets

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1️⃣ 10. ICL Group Ltd (ICL Specialty Fertilizers)

Headquarters: Tel Aviv, Israel
Key Offering: Nova® and other branded fertilizers enhanced with seaweed extracts.

ICL is a global leader in the fertilizer and specialty minerals market. Its specialty fertilizers division incorporates brown seaweed extracts into controlled-release and soluble fertilizer formulations. This combination provides plants with balanced nutrition along with the biostimulant benefits of seaweed, enhancing stress tolerance and yield.

Sustainability & Innovation Initiatives:

• Integration of sustainable inputs like seaweed extracts into mainstream fertilizer products
• Significant investment in R&D for next-generation plant nutrition solutions
• Global reach, bringing advanced seaweed-based technologies to farmers worldwide

Get Full Report Here: Brown Seaweed Extract Market – View in Detailed Research Report

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🌱 Outlook: The Future of Brown Seaweed Extract Is Green and Sustainable

The brown seaweed extract market is undergoing a significant transformation, driven by the global push for sustainability and natural solutions. While traditional agricultural chemicals still dominate, the industry is rapidly adopting bio-based alternatives to enhance crop productivity, improve soil health, and reduce environmental impact. The key players are investing heavily in R&D to unlock the full potential of seaweed’s bioactive compounds.

📈 Key Trends Shaping the Market:

• Rising demand for organic food production, fueling the need for certified organic biostimulants.
• Expansion of seaweed extract applications into animal feed and cosmetics, diversifying revenue streams.
• Stringent environmental regulations promoting the use of sustainable agricultural inputs.
• Technological advancements in extraction and formulation to increase product efficacy and shelf life.

Get Full Report Here: Brown Seaweed Extract Market – View in Detailed Research Report

The companies profiled above are not only supplying essential products—they are at the forefront of a sustainable agricultural revolution, harnessing the power of the ocean to cultivate a healthier planet.