Internship
Sublime Systems
51-200 employees
Produces low-carbon cement for construction
No salary listed
No H1B Sponsorship
Cambridge, MA, USA
This is a hybrid position, but it is primarily in-person.
- Pursuing or recently completed MBA / graduate-level degree preferred
- Background encompassing complex project work in renewables, cement/chemicals, or other project/project development settings a strong plus.
- Clean Carbon Cement Market / Demand Research
- Build pricing dataset for low-carbon materials in various geographies of interest
- Review governmental low-carbon materials procurement standards to build Sublime’s view on long-term impact/marketplace
- Interconnection Access + Cost
- Outline pathways through various utilities to achieve interconnection
- Engage utilities and consultants to uncover key information around timeline, cost, and risk
- Permitting Timeline + Risk Analysis
- Identify necessary permits for the construction of a commercial-scale Sublime facility
- Develop understanding of application review timing, key risks, and necessary spend on a site-by-site basis
- Securing Feedstock
- Supporting negotiation of feedstock procurement term sheets / LOIs with potential suppliers
- Identifying logistics partners and pricing for commercial volumes of product/feedstock
Sublime Systems produces low-carbon cement aimed at reducing the environmental impact of traditional cement manufacturing. Their unique process eliminates the need for a kiln, which is typically the most energy-intensive part of cement production. The low-carbon cement they offer performs similarly to traditional cement but with significantly lower CO2 emissions, making it appealing to various stakeholders in the construction industry, such as infrastructure owners, engineers, and contractors. Unlike competitors, Sublime Systems focuses on sustainability without compromising performance, and they sell their product by the metric ton for large-scale projects. Their goal is to commercialize low-carbon cement and work towards achieving zero emissions in the future.
Company Size
51-200
Company Stage
Early VC
Total Funding
$120.9M
Headquarters
Somerville, Massachusetts
Founded
2020
Simplify's Take
What believers are saying
- Sublime Systems secured $75M investment from CRH and Holcim for scaling.
- Their new plant will create 70-90 jobs, boosting local economy.
- First commercial application of Sublime Cement™ at One Boston Wharf in 2023.
What critics are saying
- Competition from Northwestern University and CEMEX's seawater-based cement technology.
- Scaling production requires significant investment, evidenced by $87M grant need.
- Market acceptance risk as commercial adoption of Sublime Cement™ is nascent.
What makes Sublime Systems unique
- Sublime Systems uses electrochemistry to produce low-carbon cement without kilns.
- Their process simultaneously produces green hydrogen, enhancing sustainability credentials.
- The technology eliminates CO2 emissions while maintaining traditional cement performance.
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Benefits
Remote Work Options
Growth & Insights and Company News
6 month growth
↑ 0%1 year growth
↑ 1%2 year growth
↑ 3%Concrete is an essential material in the modern world, with sand and cement actually among the world's most massive material production by volume and weight.The production of cement is also a very energy-intensive activity. It is also almost exclusively powered by fossil fuels, resulting in cement production being responsible for 8% of the world’s CO2 emissions .This can be compared to the CO2 emissions of cars and vans, which are responsible for 10% of the world’s total emissions. So, making concrete more sustainable would be as impactful as turning all the world's cars into EVs and powering them only with green energy.A lot of the carbon emissions from cement manufacturing come from the mining, breaking, processing, and refining of the raw materials used to produce it. Like limestone, calcium carbonate-rich rocks (CaCO3) are mined and mixed with clay to obtain the raw material that becomes concrete.There is potentially another source of calcium carbonate on Earth, which is seawater. The oceans contain a lot of dissolved minerals, with, of course, table salt (sodium and chlorine ions), but also magnesium, calcium, potassium, and even metals, with notably uranium, potentially one day sourced from the world's oceans instead of uranium mines. Dissolved CO2 in the form of carbonate ions is also abundant in the oceans, making them one of Earth's most powerful carbon sinks.Scientists from Northwestern University and CEMEX Innovation Holding AG (Switzerland) are now exploring if they could exploit this sea-born abundance to produce concrete’s raw material while capturing CO2 instead of emitting it
Sublime Systems expects to create 70 - 90 jobs once its new plant is operational.
Low-carbon cement technology leader Sublime Systems is accelerating its mission of swift and massive impact on global CO 2 emissions through unprecede
The world's largest cement producers are investing $75 million in Sublime Systems, a startup trying to decarbonize the cement production process at scale.
Holcim has invested in Sublime Systems, a leading low-carbon cement technology start-up, to expand its range of highly-engineered solutions to decarbonise building at scale, according to a Holcim...