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!

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 cultivated seaweed from Brittany, and learn more about the nutritional benefits of incorporating this wonder-ingredient in your diets by visiting their website!

Replacing fish-based caviar with Seaweed, Ancrée is here to show that for seaweed innovation, the sky really is the limit. Discover all four sorts of their locally-sourced artisanal caviar at NSS25 and at ImpactFest 2025, all made with traceable and plant-based ingredient. 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!

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 made with natural material, 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 Seas Socks are in part made with SEACELL Fiber, a seaweed-based fiber.  This inspiring company not only works on creating sustainable textiles, but donates with each purchase to charities such as the Healthy Seas Foundation, WWF, European Seaweed Association, 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.

As firm believers that seaweed deserves the spotlight, the Seaweed Sisters aim to provide a concrete and immersive experience of seaweed in cosmetics, wellness, and food. At NSS25, you can find them directly in the Seaweed Hotel Room and let yourself be immersed in a wellness workshop. Combining nature, knowledge, and taste, join one of their numerous seaweed walks, experience local seaweed as you haven’t before and gain more knowledge about their versatile properties!

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.