COMPANY PROFILE

Uluu

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Seaweed-based biodegradable polymers replacing fossil fuel plastics.

City Of Stirling, AustraliaFounded 2021Energy

Valuation $25–50M Last recorded · 2025

Headcount <100 Current team size

Total funding $10–50M Disclosed equity funding

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About Uluu

Uluu (formerly C Sea Solutions) is an Australian start-up that has developed the world’s first truly compelling alternative to plastic. The company’s products act like plastic but are made from seaweed, not fossil fuels. They’re strong, lightweight and waterproof, while being climate positive, biocompatible and truly biodegradable.

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Uluu is naturally produced using saltwater microbes fed with farmed seaweed. This regeneratively-grown feedstock can be scaled to entirely replace the fossil fuels used to make 400 million tonnes of plastic each year.

Source: Dealroom company data

At a glance

Status: Operational
Founded: 2021
Headquarters: City Of Stirling, Australia
Employees: 28
Open positions: None listed
Dealroom signal: 88.7/100
Sub-industry: Waste Solution
Sector: Energy, Biotechnology, Biomaterials, Plastic, Synthetic Biology, Seaweed, Waste Reduction, Spinout, Sustainable Development Goals, Advanced Materials
Technology: Hardware, Deep Tech
Business model: Manufacturing
Client focus: b2b
Links: Website LinkedIn

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Funding history

6 recorded events

Company financing events and reported valuations.

Deal type	Date	Amount	Valuation	Investors	Source
GRANTOther financing	Apr 2026	$1.4M	—	Australian Department of Industry, Science and Resources	↗
SERIES AOther financing	Oct 2025	$10M	$41M	Startmate · Main Sequence Ventures · Trinity Ventures · Fairground	↗

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Growth signals

Uluu website traffic

Latest recorded traffic for Uluu is 8K monthly website visits, up 56.9% over the last three months. Uluu's team grew 7.7% over the past year.

Latest monthly visits8K 3-month web change+56.9% 1-year team growth+7.7%

Monthly website visitsJan 2022–Jul 2026

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