About us
Company Development
CelluXtreme is a result of scientific collaboration between KTH researchers in fluid mechanics and fibre technology at the Wallenberg Wood Science Center. Their question in 2010 – “Can we control the elementary structure in spinning processes?” – resulted in a technical breakthrough that enabled manufacturing high-performance reinforcement fibres from nanocellulose. The technology provides a significant step beyond the state-of-the-art in terms of viable technical solutions, using a scalable, continuous and controllable process to assemble nanomaterials. The patent for the technological novelty was readily awarded and is owned by CelluXtreme.
CelluXtreme’s industrial fibre and fabric production is unique, relying on the combination of the patented solution and adapted up and downstream processes. RISE and KTH jointly took the first scale-up steps, and CelluXtreme has further pursued the scale-up, including essential steps towards automatising the production. Based on this, composite production has been made possible, including manufacturing the first components for industrial application testing in spring 2024.
2010
The Beginning
At KTH, the Royal Institute of Technology and the Wallenberg Wood Science Centre, researchers in fluid mechanics and fibre technology designed a process to fabricate performance fibres from nanocellulose. The CelluXtreme spinning process was born and patented.
2015
The Exploration
RI.SE Research Institute of Sweden hired the PhD behind the invention, Karl Håkansson, and further developed the process by exploring identified challenges. Upstream, downstream, and key processes: what works and does not take shape.
2021
The Foundation
CelluXtreme was founded by Daniel Söderberg and Magnus Wikström with the vision of developing performance materials from natural resources. Anna Wiberg entered as founder and CEO in 2022 with the task of setting up an efficient organisation and addressing the market and business perspective.
2025
Pilot Production
Today, fibres and fabrics are produced on a pre-pilot scale at the lab space rented by CelluXtreme at KTH. As a next step, the goal is to set up a pilot that allows performance testing together with selected customers.
The executive Team
CelluXtreme is driven by problem challengers who enjoy pushing boundaries and bringing groundbreaking research to the market. We are a team of managers, scientists, engineers, entrepreneurs, and professors. We are CelluXtreme!
Anna Wiberg, CEO
Chief Executive Officer
Daniel Söderberg, CTO
Chief Technology Officer
Professor at KTH
Karl Håkansson, PhD
Product and Process Development
Mathias Kvick, PhD
Engineering and Production
Jakob Redlinger-Pohn, PhD
Customer and Market Development
Sabrina Assenheimer, MSc
Composite development
The Scientific Advisors
Fredrik Lundell, Professor
Professor in Experimental Fluid Mechanics at KTH
Lars Wågberg, Professor
Professor in Fiber Technology at KTH
Malin Åkermo, Professor
Professor in Lightweight Structures at KTH
OUR MISSION
We believe that new material technology is an essential part of sustainable growth.
CelluXtreme is dedicated to producing multifunctional composite materials with a resilient and customer-centred supply chain, utilising our unique patented spinning technique for high-performance fibres and fabrics.
The vision is to provide society with pioneering high-performance materials that are biobased, lightweight and designed for the future.