Porto’s female-led startup Seamoretech secures €1.1 million to turn desalination brine into freshwater and critical minerals

Porto-based CleanTech startup Seamoretech has successfully completed its first Seed round, raising €1.1 million in funding. The investment was led by Rypples, 7Seas Capital, and Crédito Agrícola, with experience in OceanTech and ClimateTech sectors. The total funding raised now stands at €3 million. Seamoretech aims to scale its technology, accelerate market entry, reduce freshwater production costs, and establish a European reference for critical raw materials recovery.

The company's CEO, Sofia Delgado, expressed the ambition to help protect marine ecosystems while addressing two major European priorities: water scarcity and securing domestic supply of critical raw materials. Seamoretech's proprietary technology converts desalination brine into purified freshwater and high-value minerals, such as magnesium, calcium, copper, and lithium, using a containerised, plug-and-play system with forward osmosis to achieve Zero Liquid Discharge.

The system integrates with existing plant infrastructure, eliminating the need for operational downtime or upfront capital expenditure. By recovering minerals locally and traceably, Seamoretech contributes significantly to the climate transition and addresses Europe's water scarcity and critical mineral supply challenges. The new funding will support industrialisation, commercial expansion, and the launch of a planned project in Spain.

With rapid deployment on existing infrastructure and Spanish plans in the pipeline, Seamoretech aims to become Europe's solution to water scarcity and critical mineral shortfalls, potentially reducing global mineral extraction reliance by 30% by 2040.