Oxara

Next generation cement replacement that transforms construction waste into high performance building materials

Oxara
Company Logo

Oxara is an ETH Zurich spin-off founded in 2019 by materials scientists Dr. Gnanli Landrou and Dr. Thibault Demoulin. The company holds 4 patents and 3 trademarks, and has delivered 15 commercial projects and 20+ industrial validations in Switzerland. Its product range includes Oulesse (cement-free binder from demolition waste), Nossim (clay concrete activator), and Loko (compressed earth block activator). Oxara is now expanding internationally via Dubai as its first market outside Europe, with a phased roadmap targeting 1.25 million tonnes of production capacity and expansion into KSA and Oman by 2028.

At A Glance 

Geography

Zurich, Switzerland

Dubai, UAE

Markets

Construction

Civil Engineering

Affordable Housing

Prefab Manufacturing

Technology

Cement-free building material derived from processed excavation waste 

Business Model

Stage

Construction Materials from Demolition Waste

Oxara uses mineral salts to activate clay, recycled concrete and mixed rubble, creating building materials that match conventional concrete on strength and durability with up to 90% less CO₂. The technology runs on existing cement plant infrastructure with no modifications, making it ready to scale in fast-growing construction markets.

90%

Up to 90% lower CO₂ than traditional cement

15

Commercial projects delivered

20+

Industrial validations in Switzerland

1.25M

Tonnes of production capacity targeted

Milestones & Awards

Forbes 30 under 30
Forbes 30 under 30

Gnanli Landrou 2019 Europe 30 under 30: Science & Healthcare

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Oxara Powers Swiss Embassy Earth Blocks
Oxara Powers Swiss Embassy Earth Blocks

Oxara supplies the activator used to make the compressed earth blocks for the new Swiss Embassy in Yaoundé, Cameroon, a design rooted in local building traditions.

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