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Brimstone Energy
Hardware cleantech startup that aims to reduce CO2 emissions through innovative technologies
About Brimstone Energy
Brimstone Energy, a cleantech company founded in 2019, is working to decarbonize the cement industry. The company has developed a technology to produce Ordinary Portland cement, a key component in concrete, without releasing CO2. This process is not only cleaner but also more cost-effective than traditional cement production methods.
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The company's approach involves using calcium silicate rocks instead of limestone as the raw material for cement production. This method avoids the CO2 emissions that are typically generated when limestone is heated. As a byproduct of this process, Brimstone Energy also produces supplementary cementitious materials (SCMs), which can further reduce the carbon footprint of concrete.
Brimstone Energy is headquartered in West Oakland, California, and is in the process of scaling up its production. The company's solution has the potential to significantly reduce the environmental impact of the construction industry, which is a major contributor to global carbon emissions.
At a glance
- Status
- Operational
- Founded
- 2019
- Headquarters
- Oakland, United States
- Employees
- 71
- Open positions
- None listed
- Dealroom signal
- 64.6/100
- Industry
- Real Estate
- Sub-industry
- Construction
- Sector
- Energy, Spinout, Sustainable Development Goals, Urban Tech, Carbon Capture and Storage, Advanced Materials, Sustainable Cement, Climate Tech, Green Buildings, Circular Economy, Carbon Utilisation, Carbon Removal
- Business model
- Manufacturing
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| GRANTOther financing | Mar 2024 | $189M | — | US Department of Energy | ↗ |
| SERIES AOther financing | Mar 2022 | $55M | $220M | Collaborative Fund · DCVC · Fifth Wall Ventures · Breakthrough Energy Ventures | ↗ |
Growth signals
Latest recorded traffic for Brimstone Energy is 4.7K monthly website visits, down 48.4% over the last three months. Brimstone Energy's team declined 7.8% over the past year.
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Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed5 investors entered at this stage
US National Science Foundation
ARPA-E
DCVC
Breakthrough Energy Ventures
US Department of Energy
Series A4 investors entered at this stage
Collaborative Fund
Fifth Wall Ventures
Climate Pledge Fund
ACCELR8
Other known investors2 additional known investors
Stanford University
The Strauch Cleantech to Market Program
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Brimstone Energy on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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