CALIX (EUROPE) LIMITED

Their core work

Calix is an industrial technology company (European arm of Australian parent Calix Ltd) that develops and commercialises its proprietary Direct Separation Reactor — a vertical calciner that processes minerals without mixing combustion gases with the process CO2, making carbon capture drastically cheaper. Their core application is decarbonising lime and cement production, but the same reactor is also used to activate materials for solar thermal energy storage and battery minerals. They sit at the rare intersection of heavy industry process engineering and climate technology, with a working pilot plant in Belgium and commercial ambitions across Europe.

What they specialise in

How they've shifted over time

Calix is positioning its Direct Separation Reactor as a cross-sector platform — expect future bids in CSP, battery materials, and green minerals rather than more cement-only projects.

How they like to work

Calix joins as a specialist technology partner rather than leading consortia — across both projects they acted as the owner of the core reactor IP while academic and industrial partners handled modelling, integration, and end-use. They collaborated with 26 distinct partners across 11 countries in just two projects, which signals a hub-style network rather than loyal repeat partnerships. They are a strong partner for consortia that need a working piece of hardware at the centre of the workplan.

They have worked with 26 unique partners across 11 European countries in their two H2020 projects, suggesting a deliberately broad network rather than a fixed club. The geographic spread reflects the reach of their Belgian pilot plant and the pan-European nature of both cement and CSP industries.

What sets them apart

Unlike most carbon capture players, Calix owns a proprietary reactor that has been physically built and run at pilot scale — they are past the PowerPoint stage. They are also unusual in applying the same core technology to two very different decarbonisation problems (industrial CO2 and solar storage), which makes them a rare "platform SME" rather than a single-product vendor. For a consortium, this means you get both a mature piece of hardware and a partner who has already proven it can be reconfigured for new applications.

Highlights from their portfolio

• LEILAC
  A EUR 6.46M flagship pilot that built one of Europe's most visible industrial carbon capture demonstrators, tackling cement — the single largest source of process emissions in industry.
• SOCRATCES
  Shows Calix stretching its calcium-looping reactor beyond cement into Concentrated Solar Power thermo-chemical energy storage, proving the technology is a platform not a one-trick kiln.