Algae-based biomaterials: companies, startups and research

Examples include NOTPLA Ltd, Algenesis Corporation and FlexSEA, with packaging activity also involving Kelpi and Amcor. NOTPLA develops seaweed-based packaging; Algenesis works on bio-based materials including polyurethane; and FlexSEA develops seaweed-based materials for injection molding and 3D printing. Kelpi develops seaweed-based coatings, while Amcor is exploring them for fibre packaging.

NOTPLA Ltd, Algenesis Corporation and FlexSEA are named algae-based biomaterials startups in the available data. NOTPLA develops natural packaging materials, including Ooho; Algenesis develops alternatives to fossil-derived plastics, including polyurethane materials; and FlexSEA focuses on home-compostable seaweed materials for injection molding and 3D printing. These profiles show different routes from algal feedstock to products.

The Chinese Academy of Sciences CAS, Ocean University of China and the University of California are named research organizations active in the field. Recent work affiliated with the Chinese Academy of Sciences reports seaweed-derived composite films strengthened through fiber bridging and interfacial engineering. Ocean University of China researchers examine seaweed-polysaccharide materials for food packaging, while University of California research explores microalgae-derived bioplastics.

The data reports $301,219,096 in grants across 277 awards since 2020, plus 10 funding rounds totaling $943,490,949. These figures are aggregate records associated with the topic, not necessarily dedicated investment in algae-based biomaterials. The listed rounds include large institutional and project funding, so individual records should be checked to confirm their relevance to a specific material or company.

Earth Alive Clean Technologies, Chevron Corporation and the Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences each have 6 patents in the listed holder data. The University of Connecticut, Ningxia EPPEN Biotech Co., Microban Products Co., Carbon Technology Holdings LLC and Engineering Innovation & Design Ltd each have 4. These counts identify listed holders, not the full scope of their patent portfolios.

No: patent activity declined by 42.2% over the defined 24-month window, with 527 patents recorded in that period. By contrast, publications in the last year grew by 5.1% to 2,799. The divergence suggests that research output is advancing more steadily than patenting, although the data alone does not establish why the two indicators are moving differently.

The field spans active research and early commercial applications, rather than a single level of maturity. Research includes seaweed composite films and microalgae-based materials, while Kelpi received food-contact clearance for a seaweed-based packaging coating in August 2026. Bower Collective and Kelpi launched seaweed-coated liquid sachets in September 2026. Scale, performance and production economics remain important considerations.

Recent developments include stronger seaweed composite films, residue-derived functional coatings and new packaging formats. In August 2026, researchers affiliated with the Chinese Academy of Sciences reported films improved through fiber bridging and interfacial engineering. In September 2026, a study used Haematococcus pluvialis residue in active food-packaging coatings, and Bower Collective and Kelpi launched seaweed-coated liquid sachets.

The main approaches are seaweed polysaccharide films and coatings, algae-derived bioplastics, algae-filled polymer composites, algae-derived fibers and colorants, and biomass conversion or residue valorization. Films and coatings use seaweed polymers as material layers; bioplastics make plastic-like materials from algal inputs; composites add algae to a polymer matrix. Fiber, colorant and residue routes target textile functions or more complete biomass use.

Applications include packaging, textiles and apparel, consumer products, construction and interiors, automotive and transport, and biomedical materials. Packaging research includes edible films and seaweed-based coatings; textile work explores algal dyes and functional finishes; and biomedical studies include wound-healing materials. The listed application areas range from 138 documents for automotive and transport to 1,383 for consumer products.