Kiilto

From Forest Industry Side Stream to High Technology – Kiilto Ventures Invests in LignoSphere

20.5.2026 09:00:00 EEST | Kiilto | Press release

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Kiilto Ventures and Stephen Industries have invested in a lignin technology company originating from Aalto University, with the goal of revolutionising the market for coatings and adhesives in industry and construction.

Lignin is an abundant side stream of the forest industry: the world's pulp mills produce approximately 50 million tonnes of lignin annually, of which over 95% is burned for heat.

"In the forest industry, it has been repeated for decades that you can make everything from lignin except money. Now that saying is finally starting to crumble," says Eero Knuutila, CEO of LignoSphere.

The chemical complexity of lignin has long stood in the way of its potential. However, LignoSphere's technology transforms the structure of lignin into uniform spheres that function excellently as a key ingredient in numerous chemical compounds.

"We are now able to convert previously underutilized biomass into functional materials, where the value uplift can be more than tenfold compared to a kilogram of burned lignin," Knuutila explains.

The carbon footprint is smaller than that of fossil-based counterparts. Lignin spheres can be utilised, for example, as an epoxy-based paint for concrete, wood, and steel surfaces, or as a structural adhesive for wood and steel.

The company's patented process and application areas have been developed at Aalto University and Häme University of Applied Sciences.

With the funding secured, LignoSphere will accelerate the development of its technology, expand collaboration with industrial partners and customers, and prepare for the construction of an industrial-scale production facility. The company's goal is to position lignin-based materials as a credible mainstream alternative to fossil-based chemicals in the global coatings and adhesives markets.

Further information:

Matti Rönkkö, CEO, Kiilto Ventures matti.ronkko@kiilto.com

Eero Knuutila, CEO, LignoSphere Oy eero.knuutila@lignosphere.com

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LignoSphere CEO Eero Knuutila
LignoSphere CEO Eero Knuutila
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About Kiilto and Kiilto Ventures

Kiilto is a family-owned company based in Finland with over a hundred-year history. Kiilto develops, produces, and markets chemical industry solutions in the fields of construction, industrial adhesives and fireproofing, professional hygiene, and consumer goods. Kiilto’s operations span 9 countries and employs nearly 700 people in total. In 2025, the group's net sales amounted to 217 M€. Kiilto Ventures is the venture capital of Kiilto.

About LignoSphere

LignoSphere is a Finnish biomaterials company developing high-value coatings and adhesives made from lignin-based nanospheres. The company's patented technology has been developed at Aalto University and Häme University of Applied Sciences. LignoSphere is headquartered in Espoo, Finland.

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