SEAMATTER. Materials Shaped by the Sea.
EN
From the depths of the sea.
To the matter of your spaces.
Marine composite mineral made from waste from the fishing and aquaculture industries.
For architecture, signage and branded spaces.
Others' waste.
SeaMatter's raw material.
+325K
Tonnes of shells per year
In Europe without an industrial destination
+24M€
Annual management cost
Paid by the industry each year
+600K
Tonnes of nets per year
Unrecycled fishing nets
600
Years to degrade
The plastic in nets persists for centuries
Made from the sea.
Recognisable at first glance.



Traceable origin
Every component documented from waste to installed piece.
Distinctive aesthetic
The texture of marine minerals is one of a kind. Each panel carries the sea within.
Technical performance
Greater rigidity, thermal stability, passive acoustic properties and fire resistance.
Verifiable narrative
Transparency and trust with verifiable data and facts.
We do not declare.
We measure.
24kg
Valued waste / m²
Marine waste valorised per square metre produced
26.9
kg CO₂eq / m²
23%–40% less than the materials it replaces
4
Aligned SDGs
Three formats.
One shared origin.
Panel SeaMatter
Signage, displays and interior cladding
SeaMatter Studio
Social impact line
Signature
Co-development of an exclusive variant for the client
Validation that isn't improvised.
🏆 GoDigital 2025
Sustainability Award
🏆 Crea Crece 2025
1st Chamber of Commerce of Valencia Award
EOI incubation programme
Inclusive Impact Co-Working Valencia
Who is behind it.
Carina Caldeira
CEO & Founder
Marine Biologist · MSc Aquaculture and Fisheries.
+15 years of research
+18 indexed scientific publications.
Operational networking
Industrial partner
Valencia, Spain
Aquaculture waste
Europe
Fishing nets
North Atlantic
Team in build-up. New hires planned in operations, LCA and sustainable architecture from Q3 2026.
Be the first.
150K€
Total round · 3 phases
65K€
Phase 1 · Project launch
Let's talk.

Would you like to invest?
Share your investment thesis and let's talk. The full deck is available on request.
Would you like to work with us?
Architects, designers, distributors and brand projects — we're open to collaborating.
ccaldeira@seamatter.es
+34 685 937 490
SeaMatter · Materials Shaped by the Sea · Valencia, Spain