In the largest-ever advance transaction for clean cement, Microsoft has made a purchase that will deploy up to 622,500 tons of cement products from Sublime's first two factories! For scale reference, that's enough cement to build roughly 31 NFL stadiums. Microsoft has identified Sublime’s innovative low-carbon cement as a material that is essential for its global construction and decarbonization goals. In this early, binding commitment to purchase, Microsoft is enabling us to scale our manufacturing more quickly to become an integral part of the clean construction supply chain. Cement is a heavy material that has been traditionally produced and used within a local geography, limiting long-term procurement options with global buyers. At the same time, investors want to see committed, high-intent customers before funding the manufacturing scale-up of innovative technologies. Microsoft’s pioneering transaction untangles this knot. The tech giant will deploy Sublime Cement® in their construction projects (think data centers) when geographically possible. Alternatively, they can procure the environmental value separately and enable the material to be used locally around our first plants. “We need breakthrough, reimagined products like Sublime Cement at scale to reduce emissions—both at Microsoft and globally," said Jeff W Leeper, Vice President of Global Datacenter Construction at Microsoft. Similar to how renewable energy certificates have enabled clean electricity to proliferate more rapidly, this transaction will transform the market for clean cement. It complements broader efforts from RMI and the Center for Green Market Activation (GMA) to establish a book and claim system in cement and concrete, better connecting buyers with the technologies they need—fast. Read more about this deal in today's story from Michelle Ma at Bloomberg: https://lnkd.in/eVCrpdWJ And read our press release: https://lnkd.in/e7ajU7CF #KeepBuilding. #cleancement #offtake #innovation #manufacturing #commercial #scaleup #datacenter
Sublime Systems
Manufacturing
Somerville, Massachusetts 19,797 followers
Clean cement for a resilient future
About us
Sublime Systems is leading a swift and massive transition to a clean cement manufacturing future. Sublime’s breakthrough electrochemical process avoids the pollution caused by ordinary portland cement’s use of fossil-fueled kilns and limestone feedstock. Sublime instead extracts reactive calcium and silicates from abundant raw materials at ambient temperature, to make ASTM C1157-compliant Sublime Cement™, a 1:1 replacement for OPC in concrete. Because it does not require carbon capture, Sublime’s technology offers a clear path for cost-competitive clean cement manufacturing at scale. Sublime was founded at MIT in 2020 by Dr. Leah Ellis and Prof. Yet-Ming Chiang, both respected experts in materials science, electrochemical systems, and sustainability research. The company has raised over $200M in funding from leading tech investors, global cement majors, and cooperative agreements with the U.S. Department of Energy’s ARPA-E, IEDO, and OCED award programs. It currently operates a Somerville, MA-based pilot plant with a >250 TPY nameplate production capacity and is developing its 30,000 TPY first commercial facility in Holyoke, MA.
- Website
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www.sublime-systems.com/
External link for Sublime Systems
- Industry
- Manufacturing
- Company size
- 51-200 employees
- Headquarters
- Somerville, Massachusetts
- Type
- Privately Held
- Founded
- 2020
Locations
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Primary
444 Somerville Ave
Somerville, Massachusetts 02143, US
Employees at Sublime Systems
Updates
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Home from #ClimateWeekNYC? You can still learn from CEO Leah Ellis' presentation at the Forbes Sustainable Leaders Summit 👇 As Leah points out, we use over 4 billion (!) tons of cement per year, with manufacturing contributing roughly 8% of global #carbonemissions. Sublime Systems is advancing a breakthrough process to decarbonize this massive industry, producing cement at ambient temperature using #electrochemistry and feedstocks that don't release CO2 when broken down. Check out the full video here to learn more about this technology and our progress working with leading #cement producers, general contractors, and hyperscalers 🎥 https://lnkd.in/eZK5vPYh #KeepBuilding #cleancement #innovation #manufacturing #scaleup #decarbonization #sustainableconstruction #NYCW
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Catch CEO Leah Ellis on the Solving for Climate podcast! This is a great conversation for those interested in learning more about why addressing cement emissions is such a powerful lever for decarbonization globally and why Sublime's breakthrough electrochemical process offers a powerful opportunity to address these emissions without compromising performance of the concrete our global #construction industry relies on. She also talks about our recent pour in a data center with STACK Infrastructure, and the powerful customer momentum we're seeing among hyperscalers building the #infrastructure our digital economy requires. See the clip below for a preview of the conversation, and listen to the full episode here: https://lnkd.in/g7eppkSR #KeepBuilding #cleancement #innovation #manufacturing #scaleup #decarbonization #lowercarboncement #sustainableconstruction
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🙌 Our CEO and Co-Founder Dr Leah Ellis has been named a Forbes Sustainability Leader for 2025, and took the stage yesterday at the Forbes Sustainability Leaders Summit at #NYCW! 🙌 Since inventing Sublime’s foundational breakthrough manufacturing process with (along with Prof. Yet-Ming Chiang) at Massachusetts Institute of Technology, Leah has continuously translated innovation into real-world progress, with an emphasis on "moving at the speed of trust" in the construction industry, which prioritizes data and results. Her leadership has been critical as Sublime has advanced our technology, operated of our pilot plant, engaged three of the Western world's largest cement producers as strategic partners, attracted major U.S. GCs as distribution partners, and secured offtakes with critical customers such as Microsoft. We are proud to see Leah named alongside so many pioneers in sustainability, a recognition of not only Sublime's progress but the critical role decarbonizing cement and heavy industry plays in achieving global climate goals. See the full list here 🔗 https://lnkd.in/ggps7J_m
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We're rounding out our week at #climateweeknyc2025 with the following events on Wednesday, September 24: Climate Finance for Market Transformation in Hard to Abate Sectors: Exploring Potential and Pitfalls with Cory Waltrip, hosted by Massachusetts Institute of Technology and S3 Markets, starting at 8am 🔗 https://lu.ma/xupz2u88 Node FOAK Summit with Leah Ellis starting at 1pm 🔗 https://lnkd.in/eiAqAveB At NYCW Heatmap News House, Leah Ellis and Katie Ross of Microsoft will be talking about our historic offtake transaction, at 4:30pm 🔗 https://lnkd.in/eGtPcrjX #climateweekNYC #NYCClimateWeek #cement #decarbonization #construction
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The Sublime team will be in NYC for Climate Week! Over the next few days Sublime will share information about the events it is speaking on, starting with Tuesday, September 23: 📆 Urban Playground: Climate Innovation in our Cities with Becky Gallagher starting at 8:30am 🔗 https://lnkd.in/exFRVvu5 📆 Utility Solutions Forum with Becky Gallagher starting at 11:10am with National Public Utilities Council 🔗 https://decarbforum.com/ 📆 Green Markets Day 2025 with Leah Ellis starting at 12:30pm 🔗 https://lu.ma/26rt1645 #climateweeknyc #NYCClimateWeek #netzero #decarbonization #lowercarboncement #sustainableconstruction
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Sublime has been named to the 2025 “50 by 2050” list! This annual list created by Congruent Ventures and Silicon Valley Bank highlights the next generation of high-growth companies with the vision, innovation, and scale to significantly advance global decarbonization over the next 25 years. With cement #manufacturing currently responsible for 8% of global CO2 emissions, we are glad to see Sublime's ambient temperature manufacturing process recognized as a global breakthrough. And we are proud to be in such great company with innovations across industrial heat, energy production, clean materials, and more! 👉 Check out the full list here: https://lnkd.in/gEsjXfKJ 👉 Read the full report: https://lnkd.in/gm6wtPyZ #50by2050 #ClimateTech #EnergyTransition #ClimateInnovation #netzero #decarbonization #lowercarboncement #sustainableconstruction
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This year, Sublime CEO Leah Ellis is speaking at the Forbes Sustainability Leaders Summit as part of #climateweeknyc! Leah will give a short talk as part of an Innovation Spotlight to highlight Sublime Systems’ breakthrough clean #manufacturing process. See the other speakers for the event and register here ➡️ https://lnkd.in/eivSEx_m #climateweeknyc #NYCClimateWeek #netzero #decarbonization #lowercarboncement #sustainableconstruction
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This spring, Microsoft, a company that typically doesn't directly buy cement, completed an offtake to deploy up to 623,000 tons of our Sublime Cement® over 6-9 years. In this podcast hosted by the World Economic Forum's Robin Pomeroy, Microsoft's Julia Fidler and Sublime's SVP of BD and Policy Joe Hicken discuss how this transaction was designed to create "catalytic change" to transform the scale-up trajectory for the materials the world needs to decarbonize and hit net-zero by 2050. The episode is a fascinating look at how innovation comes to market and the pivotal role the world's sustainability leaders like Microsoft play. Listen here 🔈 https://lnkd.in/gN_uZwas #KeepBuilding #cleancement #innovation #manufacturing #scaleup #decarbonization #lowercarboncement #sustainableconstruction
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The Sublime team welcomes Alexis Olans Haass as Managing Director, EU Market Development! Alexis will be collaborating across across product, policy, and BD to ready the European markets for the presence of full-scale Sublime plants, building on the work that has been underway with our strategic cement major partners in the EU, Holcim and CRH. Europe has already demonstrated major leadership valuing clean and circular #manufacturing processes, which has catalyzed #decarbonization efforts globally and spurred innovators' scale up. Sublime's mission of swift and massive impact on global CO2 means scaling Sublime #Cement worldwide, and we are excited to accelerate that future with our newest colleague. Welcome Alexis!
Most cement is born in fire. Sublime’s is born in electrons. That changes everything. I’m thrilled to share that I’ve joined Sublime Systems as Managing Director, EU Market Development—helping bring to Europe an ultra-low carbon cement process that’s as radical as it is necessary. When I stepped away from Arcadis, I said I was increasingly drawn to #cleantech, #energytransition, and #industrialdecarbonization. I wanted to find that sweet spot where my where my ‘#electrifyeverything’ mindset could meet global-scale industrial decarbonization. Sublime is exactly that. As a #Boston native now living in #Munich, I’ve always rooted for the Boston climate innovation scene—and Sublime Systems has been one of its brightest stars. Tackling cement’s 8% share of global emissions (3rd–4th if it were a country) is nothing short of historic. Now, I get to help them scale across #Europe. As Managing Director of European Market Development, I’ll be leading Sublime’s expansion across the #UK and #EU by building #strategicpartnerships, structuring innovative offtake agreements, and influencing #procurement policies to accelerate adoption of ultra-low carbon #cement. That means collaborating with policymakers, industry leaders, and funding bodies to secure support for #sustainableinfrastructure and access key #EUcleanindustry initiatives. If you’re working on #sustainableconstruction or industrial decarbonization, I’d love to connect and explore how we can build this future together. In the end, the real motivator to join came from the chance to work with such inspiring leaders and outstanding business development team. Joe, Leah, Greg, Rob… your all-star bench is full! I couldn’t be more energized to help scale one of the coolest climate innovations I know. Hang on to your hats! Europe’s #cement story is about to get a whole lot more electrifying. Joe Hicken, Leah Ellis, Rob Davies, Greg Williams, Glen Junor, Mitch Clark, Cory Waltrip, Erin Glabets, Becky Gallagher, Kat Benesh, Michael Corbett, Jesse Benck, Noelle Palazzi, Cayman S. https://lnkd.in/dbGfApsK
First Sidewalk Made of Innovative Cement from Sublime Systems
https://www.youtube.com/