Seawood Materials is a pioneer in seaweed-based fibreboards, crafted entirely from brown seaweed and vegetal sidestream from agriculture. At NSS25, explore their versatile collection with their panels, desk, lamp, bedside tables, workshop table, photo frame, and tray, all made from durable, renewable seaweed composites.

Much like seaweed itself, Seawood Materials adapts easily to innovative interior applications. As a key part of the Seaweed Hotel Room, their products show how natural materials can transform the spaces we live and work in.

Looking ahead, Seawood aims to scale impact in the building industry by using these materials for interior walls in homes and offices, not only reducing current emissions in the sector, but also ensuring that captured CO₂ remains safely stored within their products.

Visit their stand at NSS25 or learn more via their website!

At NSS25, Zeefier presents its latest showcase of industrial dyes made from 100% seaweed, applied to real interior textiles: the carpet, runner, pillowcases and duvet cover are all coloured using Zeefier’s palette. Offering a reliable and sustainable alternative to synthetic dyes, Zeefier’s colour range spans soft neutrals to richer tones sand, silvergrey, brown and more developed for industrial use.

About the products:

·      The wool carpet and runner are now available for purchase.

·      The pillowcases and duvet cover will be launched in 2026.

·      Zeefier dyes are compatible with fibres like cotton, wool, silk, linen and viscose.

Experience the materials at NSS25 or visit their website to learn more!

There is no hotel room without a space to sleep! At NSS25, experience the wonders of seagrass-filled mattresses and pillows, brought to you by Coco-Mat. This company is dedicated to provide comfort and peaceful sleep with natural materials. They are involved in many sustainable projects which you can find directly on their website. You might also find their beds in a hotel during one of your own trips!

As a specialist in Seaweed Interior Design, L’EAUTELIER is a pioneer in algae-based hospitality. With their first Seaweed Suite presented at UNOC 2022, L’EAUTELIER continues their mission to promote regenerative travel in throughout Europe. L’EAUTELIER also brings their own seaweed-based tabi socks to complete the NSS25 experience. Meet them at the cosmetic’s section in La Fontaine to discover more of their design services, and visit their website to find out more about their vision!

Origin by Ocean is a Finnish biotechnology company redefining how we use marine resources. Through its patented biorefining process, the company transforms invasive algae into high-performance, bio-based ingredients for industries such as cosmetics, food, textiles, packaging and beyond, turning ocean challenges into circular business.

For the Seaweed Hotel Room pop-up at NSS25, Origin by Ocean presents a glimpse into the future of ocean-positive living: Marimekko pillowcases printed with seaweed, and a range of skincare and wellness products from their customers. Ole Hyvä, Meri Product using Origin by Oceans next generation alginate for sulphate free formulations, and Sauna/ING Sauna Serum Mist, the first-ever commercial product featuring OCEANBOOST™ LF, the world’s first circular fucoidan upcycled from invasive Sargassum.

Discover their mission, explore their products, and dive deeper into their inspiring story by visiting their website!

Passionate about the wellness benefits but also about exhibiting the beauty of seaweed, Zji’s mission is to provide sustainable experiences in relation to the sea. At NSS25, Zji Sea Wellness completes the full seaweed hotel room experience with seaweed-based skin care & wellness products such as soap, face oil, bath salt, shell soap-holder, and even a bottle bath soap! Find out more about their inspiring work on their website, and scroll through the numerous products they have to offer both at an industry and personal scale!

Combining healthy nutrition with environmental sustainability, Neptune Elements has a mission to bring seaweed into our daily lives. At NSS25, discover their seaweed-infused teas and chocolate bars made with organic seaweed from Brittany, and learn more about the nutritional benefits of incorporating this wonder-ingredient in your diets by visiting their website!

Neptune Elements also has a division dedicated to industrial applications (Neptune BioIngredients). They supply high-quality green algae in large volumes for biomaterials, biofertilizers, and animal feed. 

Replacing fish-based caviar with Seaweed, Ancrée is here to show that for seaweed innovation, the sky really is the limit. Discover all four variations of their locally-sourced artisanal plant-based caviar at NSS25 and at ImpactFest 2025, all made with traceable ingredients. Adding fully to a cozy hotel experience, you can recreate your own seaweed-based evening while retaining gastronomical excellence. Visit their website and get in touch!

insta: klarenbeek_dros

Mixing art with practical and sustainable products, Weedware fully immerses seaweed in the world around us. Their vases and cups, made with lab-grown native algae and seaweed and then processed into material, are a magnificent add-on to the hotel room at NSS25. You can also find their growing Façade for Heijmans and Marineterrein Amsterdam – each panel grown with natural material as binder, mycelium, including seaweed fibers. Check out their website and social medias to follow this very active and innovative company!

In the seaweed hotel room, seaweed finds its way in bold and surprising ways. The Zonnig Zeewit craft beer, a light White Ale with seaweed picked from the North Sea, is a prime example of how easily locally-sourced seaweed can be commercialized and find a place in our everyday lives. Already scaled at a commercial level, you can find those 3.8% beers at your local supermarket or during a visit at their brewery in Amsterdam!

At NSS25, observe the beautifully dyed clothing by Nienke Hoogvliet. Using design to inspire harmony between humans, society and the natural environment, Nienke has notably worked on the SEA ME Collection project in which she developed lightfast natural dyes from seaweed and used them to dye seaweed yarn. As a co-founder of Zeefier, she contributes directly to the scalability of seaweed-based dyes for a sustainable future in the textile industry.

Driven by a passion for sustainability and determination to make a positive impact on the environment, Forebel’s colorful Socks are in part made with SEACELL Fiber, a seaweed-based fiber.  This inspiring company not only works on creating sustainable textiles, but also donates with each purchase to charities such as the Healthy Seas Foundation, WWF, North Sea Farmers, and Sock by Sock. Visit their website today and add a sustainable and comfortable option to your sock collection!

As well as providing an innovative and healthy alternative to period products, Vyld’s kelpons are made with Kelp and contribute directly to the well-being of oceans by relying on nitrogen absorbing and CO2 mitigating Kelp cultivation. With a positive impact assessment and as the first tampon worldwide to be certified as microbiome-friendly by MyMicrobiome AG, Vyld’s successful contribution to sustainable menstrual products is ever-growing! Check out their products at NSS25 and learn more about this company directly on their website.

For many, seaweed is one of nature’s most underrated ingredients! The Seaweed Sisters believe that seaweed deserves a bigger place on your plate and in your life. No stiff superfood clichés or complicated cooking techniques, just practical tips, delicious recipes, and a fresh, down-to-earth approach.  At NSS25, they invite you to discover what seaweed can do for your skin and health through a unique workshop inside the Seaweed Hotel Room. Check out their experiences and events/workshops on their website to see everything else they offer!

Maris Glow strongly believes the sea doesn’t just inspire, it transforms.

While the Seaweed Hotel Room event by North Sea Farmers showcases how marine plants shape design, wellness and sustainable innovation, they focus to bring that same energy directly to your skin.

Crafted with seaweed extracts and pure seawater from the Oosterschelde, their skincare combines natural strength with serene luxury. The result is a ritual that nourishes, soothes and connects you to the essence of the sea.

Dermatologically tested on sensitive skin, 100% vegan and cruelty-free. Developed with respect for people, animals and nature, gentle on the skin, powerful in effect.

Discover the Sea Whisper collection on their website.

This Seaweed Hotel Room would not have been possible without the sponsoring of the Hotel School the Hague! As a Hospitality University, the Hotelschool is actively invested in sustainable innovation in hospitality, with their yearly Sustainability Hospitality Challenge Initiative launched in 2014 where sustainability is the central theme. The programs offered by this university drive business practices that have a positive impact on our society and planet.