Meet the Alliance members!


Dedicated to sustainable development, Arup is a collective of designers, engineers, consultants, and experts working globally to deliver a wide variety of projects in the built environment. Arup was founded to be humane and excellent; we collaborate with our clients and partners using imagination, technology and rigour to help shape a better world. Learn more.


Betolar is a Finnish pioneer company in materials technology. At the heart of Betolar are visionary thinking, a high level of expertise in construction, and a deep understanding of the opportunities offered by technology and digitalisation. They help the construction industry to build a new, more sustainable future, reducing CO2 emissions and the usage of fossil resources in order to achieve climate goals in practice. Learn more.


Biomason® is a team of biologists, architects, and engineers developing a revolutionary Ordinary Portland Cement (OPC) replacement using advanced biotechnology to reinvent traditional cement and offer a planet-friendly alternative. Over the last 10 years, Biomason has developed their first generation Biocement® – the resulting material functions similarly to OPC but does not require the use of fossil fuel fired kilns or calcination of limestone, the two major sources of carbon emissions in the OPC manufacturing process. Learn more.


C2CA Technology, a company that began as a collaboration between GBN Group and TU Delft, aims to transform the construction industry with its groundbreaking circular concrete technology. By turning concrete rubble into new materials for new concrete, C2CA uses density and thermal/cracking separation techniques to produce recycled aggregates, sand, and cement substitutes. This innovation earned C2CA the 2021 Innovation Radar Prize for the most promising EU-financed innovation. Learn more.

Carbon Re

Carbon Re is an AI for materials company pushing the boundaries of AI to accelerate the decarbonisation of foundational materials such as cement. They leverage world-class expertise from UCL and Cambridge University in AI, energy efficiency, and industrial process improvement. Learn more.

Carbon Upcycling

Carbon Upcycling is a circular decarbonisation solution for hard-to-abate industries. Its carbon capture and utilisation technology sequesters CO2 emissions into industrial byproducts, upcycling them into an enhanced material to replace clinker, the most carbon-intensive ingredient in cement. The company’s commercial technology is currently being commissioned at Canada’s largest cement plant to decarbonise operations and develop a resilient, local supply of cement. Read more.

CB Green

CB Green was established by CB Group in 2020 to drive the group’s focus on designing and catalysing solutions which support our customers in their efforts to tackle the environmental and societal impacts of their projects. CB Green supports customers in the design and production of carbon-free mineral powders (SCM) to ensure cement decarbonisation by limestone fillers and clays production. Learn more.


Cemvision is a climate-first company leveraging world-leading cement know-how to bring resource-efficient cement to the mass market by combining deep industrial expertise with experience from scaling new technologies. Learn more.


Colas is a global leader in the construction and maintenance of transport infrastructure, opening the way to tomorrow’s innovative, sustainable mobility. Colas has made a strong strategic commitment to decarbonising its business activities. A key part of this commitment involves the development and promotion of low-carbon products, techniques and solutions – including for cement and low-carbon binder used in concrete. Learn more.


Concrete4Change (C4C) is an R&D licensing company, helping concrete manufacturers and the construction industry achieve net zero carbon neutrality. Utilising the full natural potential of concrete for the permanent lockdown of CO2. Our technology will become the global standard technology for utilising CO2 and reducing embodied emissions for ready-mix and pre-cast concrete applications. C4C is developing a technology that can create net-zero concrete at a cheaper cost, reducing the need for expensive materials and reduce harm to the planet as a result. Learn more.


Ecocem is a pioneer of high-performance products and technology that significantly reduce CO2 emissions in the cement and construction industries. An independent company, with a world-class innovation centre and manufacturing facilities across Europe, Ecocem reduces the amount of clinker – the key source of CO2 emissions in cement. Our latest technology, ACT, is a next generation innovation which can deliver a globally scalable 70% reduction in the cement industry’s carbon footprint as early as 2035, with no significant increase in production costs or change to manufacturing processes. Learn more.


Founded in 2021, ecoLocked is a startup leveraging carbon removal and turning it into a resource for the construction industry. The company has developed an innovative concrete admix material using biocarbon, a carbon negative material made from waste biomass, which allows them to store captured carbon in buildings, reduce emissions from cement clinker production, and provide functional benefits such as better thermal insulation. Learn more.


ECOS is an international NGO with a network of members and experts advocating for environmentally-friendly technical standards, policies and laws. ECOS ensures the environmental voice is heard when they are developed and drives change by providing expertise to policymakers and industry players, leading to the implementation of strong environmental principles. Learn more.


The EEB is Europe’s largest network of environmental citizens’ organisations. We bring together over 180 member organisations from 40 countries. We stand for sustainable development, environmental justice & participatory democracy. Learn more.


Fortera is a materials technology company paving the way to zero CO2 cement. The Fortera process draws on 100,000+ hours of research and development, 100+ patents, and 10+ years of real-world product demonstration. Fortera’s first manufacturing plant is nearing completion and will manufacture a low carbon supplementary cementitious material (SCM). The company is backed by leading investors including Khosla Ventures and Temasek. Learn more.


GreenMade is a French start-up committed to significantly reducing the carbon emissions of the cement industry. It will use an innovative low-carbon hydraulic binder – the Alpha Sigma Activator (ASA) – principally composed of anhydrite III, for mainstream products in the construction industry. GreenMade has patented an innovative production process that dehydrates gypsum to obtain a highly-reactive molecule which can then be used for both structural (cement) purposes and non-structural applications.

Hoffman Green Cement Technologies

Founded in 2014, Hoffmann Green Cement Technologies designs, produces and distributes innovative extremely low-carbon cements – with a carbon footprint 5 times lower than traditional cement – that present, at equivalent dosage and with no alteration to the concrete manufacturing process, superior performances than traditional cement. The Group has industrialised a genuine technological breakthrough based on alterations to cement’s composition and the creation of a heating-free, clinker-free and low-energy consumption manufacturing process making it a leading and unique player on a cement market that has not undergone any significant changes in the last 200 years. Learn more.


Materrup develops and manufactures a local and low-carbon cement based on uncalcined clay. The raw clay comes directly from the circular economy. Their technology immediately reduces carbon footprint and embedded energy by half compared to conventional cement. Learn more.


The Northern Irish startup NoMAD takes inspiration from the extraordinary geology and polygonal forms of the Giant’s Causeway basaltic columnar landscape created over 50 million years ago by a series of volcanic eruptions. Their low-carbon concrete landscaping components made with local by-product and waste materials are inspired by nature and engineered by humans using cutting-edge material science, parametric modelling and digital fabrication. The beautiful and efficient forms produced through a circular economic model of production reduce CO2 emissions, waste and raw material consumption while delivering a beautiful, resilient and sustainable built environment where future generation can thrive. Learn more.


Omya is a leading global producer of essential minerals and a worldwide distributor of specialty materials. Founded in Switzerland in 1884 and privately owned, we employ 9,000 people across 160 locations in 50 countries. Omya provides added-value products and services from responsibly sourced materials to meet the needs of current and future generations. Learn more.


Polycare is a German Clean-Tech company that has developed a circular masonry system called SEMBLA® to transform the construction industry towards decarbonisation and circular economy. The reusable SEMBLA® system is made from low-carbon concrete based on geopolymers, making it a completely mineral building material. The production currently takes place in Gehlberg, Thuringia. Learn more.


ResourceFull is a technology company driven by positive impact on society. With a focus on research and development, we connect our customers to leading sustainable solutions for the construction industry. Partner with a team of passionate experts equipped with an advanced laboratory. We’re an independent group ready to put their boots into the concrete and provide the most effective solutions for your industry. Learn more.

Sublime Systems

Sublime is developing a breakthrough process to make low-carbon cement. The technology replaces the industry’s legacy fossil-fuel-intensive thermal calciner process with an electrochemical process that produces low-carbon cement at ambient temperatures with renewable electricity. Learn more.


Terra CO2 Technology is an innovative construction materials company focused on decarbonizing the built environment. The Company is headquartered in Golden, Colorado with an R&D subsidiary located in Vancouver, Canada. Terra CO2 has attracted several of the world’s most forward-thinking investors who are focused on sustainability, including Breakthrough Energy Ventures, who invests in the innovations that will lead the world to net zero emissions. Learn more.


3Béton is a GreenTech pioneer, specialised in ready-mixed low-carbon concrete in the Rhône-Alpes region. Convinced that mineral materials are part of the solution of decarbonised construction, 3B objective is to make low carbon concrete possible everyday for all construction actors, from DIY up to multinational construction companies. Learn more.