{"id":172715,"date":"2026-01-28T07:30:00","date_gmt":"2026-01-28T06:30:00","guid":{"rendered":"https:\/\/renewable-carbon.eu\/news\/?p=172715"},"modified":"2026-01-28T08:07:25","modified_gmt":"2026-01-28T07:07:25","slug":"co-reactive-secures-6-5-million-in-seed-funding-for-co%e2%82%82-negative-construction-materials-technology","status":"publish","type":"post","link":"https:\/\/renewable-carbon.eu\/news\/co-reactive-secures-6-5-million-in-seed-funding-for-co%e2%82%82-negative-construction-materials-technology\/","title":{"rendered":"Co-reactive secures \u20ac6.5 million in seed funding for CO\u2082-negative construction materials technology"},"content":{"rendered":"\n\n
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The Co-reactive team (Photo: Co-reactive)<\/figcaption><\/figure><\/div>\n\n\n
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  • The climate-tech start-up Co-reactive closes a seed financing round totaling \u20ac6.5 million.<\/strong><\/li>\n\n\n\n
  • The company\u2019s technology continuously mineralizes CO\u2082 and converts emissions into high-performance, CO\u2082-negative supplementary cementitious materials (SCMs).<\/strong><\/li>\n\n\n\n
  • The financing round is led by High-Tech Gr\u00fcnderfonds (HTGF). Further investors:\u00a0NRW.Bank, HBG Ventures, AFI Ventures (the early-stage impact arm of Ventech), Evercurious VC as well as climate tech business angels. In addition, the company receives seven-figure funding from the German Federal Ministry for Economic Affairs and Energy (BMWE).<\/strong><\/li>\n\n\n\n
  • Co-reactive is now scaling from prototype to a continuous 1,000-ton demonstration plant and preparing industrial pilot plants at the tens-of-thousands-of-tons scale.

    <\/strong><\/li>\n<\/ul>\n\n\n\n

    Founded in 2024, climate-tech start-up Co-reactive from North Rhine-Westphalia (NRW) has completed a seed financing round totaling \u20ac6.5 million. The capital will be used to scale the company\u2019s CO\u2082 mineralization technology \u2013 which makes use of CO\u2082 and binds it permanently in high-performance construction materials \u2013 from prototype to industrial application.<\/strong><\/p>\n\n\n\n

    The round is led by HTGF. In addition, NRW.Bank, HBG Ventures, AFI Ventures (the early-stage impact arm of Ventech), Evercurious VC and a network of experienced climate tech business angels are investing. The company also receives further support through grants such as the Federal Funding for Industry and Climate (BIK) from the German Federal Ministry for Economic Affairs and Energy (BMWE).<\/p>\n\n\n\n

    Co-reactive has developed a continuous process that converts CO\u2082 together with natural minerals such as olivine or metallurgical slags (EAF & BOF) into performance-enhancing, CO\u2082-negative supplementary cementitious materials (SCMs). These materials enable a significant reduction of the clinker content in cement and construction materials \u2013 and thus a substantial reduction of their CO\u2082 footprint. At the same time, they increase compressive strength and durability. The solution is designed as a drop-in technology and can be integrated into existing production processes.<\/p>\n\n\n\n

    In doing so, Co-reactive addresses two key challenges of the industry: \u00a0<\/p>\n\n\n\n

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    • High emissions: Cement production accounts for around eight percent of global CO\u2082 emissions. With rising CO\u2082 pricing, production costs risk doubling over the next decade.<\/li>\n\n\n\n
    • Raw material scarcity: Conventional cement substitutes such as fly ash and ground granulated blast furnace slag are becoming increasingly scarce due to the coal phase-out and the transformation of the steel industry.<\/li>\n<\/ul>\n\n\n\n

      With the seed financing, Co-reactive will scale its current lab and pilot operations in Q2 2026 to a continuous demonstration plant with a capacity of around 1,000 tons per year. In parallel, the company is preparing, together with industrial partners, first-of-a-kind plants at the tens-of-thousands-of-tons scale that from 2027 onwards are intended to mineralize biogenic or process-related CO\u2082 streams directly on site at cement and steel plants.<\/p>\n\n\n\n

      \n

      Dr.-Ing. Andreas Bremen, <\/strong>Co-Founder and CEO of Co-reactive: <\/strong>\u201cFunding and scientific research form the foundation \u2013 but real transformation only happens through entrepreneurial action. With the right co-founders and an interdisciplinary team, we are taking CO\u2082 mineralization from the lab into continuous industrial operation. The support of our financing partners, with the HTGF as lead investor, gives us the strength to deliver proof of performance with a 1,000-ton demonstration plant and to prepare large-scale deployment together with industry. We are building a solution that is urgently needed today so that it can create impact at industrial scale tomorrow.\u201d<\/p>\n\n\n\n

      Anna Stetter, Investment Manager, HTGF:<\/strong> \u201cThe construction industry is at a turning point: Conventional supplementary cementitious materials such as ground granulated blast furnace slag and fly ash are becoming scarce and expensive as decarbonization progresses \u2013 prices for fly ash have in some cases quadrupled over the past two years. Co-reactive offers a scalable alternative that is not only CO\u2082-negative, but can also be integrated into existing processes as a drop-in solution. With strong unit economics and an experienced team of mineralization and plant engineering experts, Co-reactive has the potential to transform the industry in a lasting way.\u201d<\/p>\n<\/blockquote>\n\n\n\n

      About Co-reactive<\/h3>\n\n\n\n

      Co-reactive GmbH is a climate-tech start-up founded in 2024, supported by the EXIST program of BMWE and headquartered in D\u00fcsseldorf. The company is developing a continuous CO\u2082 mineralization technology that uses captured CO\u2082 and magnesium-\/calcium-containing silicate minerals such as olivine or metallurgical slags to produce novel, highly reactive supplementary cementitious materials (CO-SCMs). The CO-SCMs have a negative CO\u2082 footprint and enable a significant reduction of the clinker content in cement and construction materials without compromising performance. Co-reactive works along the entire value chain with CO\u2082 and raw material suppliers, cement and concrete producers as well as certification bodies to pave the way from pilot plants to large-scale industrial plants in the 100- to 300-kilotons range. The team combines expertise in CO\u2082 mineralization, plant engineering, commercialization, and brings experience in scaling sustainable technologies.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Founded in 2024, climate-tech start-up Co-reactive from North Rhine-Westphalia (NRW) has completed a seed financing round totaling \u20ac6.5 million. The capital will be used to scale the company\u2019s CO\u2082 mineralization technology \u2013 which makes use of CO\u2082 and binds it permanently in high-performance construction materials \u2013 from prototype to industrial application. The round is led […]<\/p>\n","protected":false},"author":114,"featured_media":172664,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","nova_meta_subtitle":"The capital will be used to scale the company\u2019s CO\u2082 mineralization technology \u2013 which makes use of CO\u2082 and binds it permanently in high-performance construction materials \u2013 from prototype to industrial application","footnotes":""},"categories":[5571],"tags":[10744,15692,10416,10743],"supplier":[26782,27462,17902],"class_list":["post-172715","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-co2-based","tag-carboncapture","tag-cement","tag-circulareconomy","tag-useco2","supplier-bundesministerium-fur-wirtschaft-und-energie-bmwe","supplier-co-reactive","supplier-nrw-bank"],"_links":{"self":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/172715","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/users\/114"}],"replies":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/comments?post=172715"}],"version-history":[{"count":0,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/posts\/172715\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/media\/172664"}],"wp:attachment":[{"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/media?parent=172715"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/categories?post=172715"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/tags?post=172715"},{"taxonomy":"supplier","embeddable":true,"href":"https:\/\/renewable-carbon.eu\/news\/wp-json\/wp\/v2\/supplier?post=172715"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}