Sublime Systems
PrivateLast Round
Strategic
May 20, 2025
Total Funding Raised
$141.35M
Company Overview
Sublime Systems operates in Energy & Sustainability and is based in Somerville, Massachusetts. Its latest recorded funding round was a Strategic round in May 2025.
Sublime Systems is a clean technology company that develops electrochemical cement manufacturing technology to reduce carbon emissions and co-produce green hydrogen.
Sector
Energy & Sustainability
Verticals
Clean Manufacturing, Advanced Materials, Sustainable Materials, Circular Economy, Construction Tech
Business Model
B2B
Customer Profile
Hardware Sales, Data as a Service
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Sublime Systems Comparables
Compare Sublime Systems with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Brimstone | 91% | |
| Fortera | 87% | |
| Prometheus Materials | 85% |
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Sublime Systems Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Strategic | May 20, 2025 | ||||
| Grant | Nov 2, 2024 | ||||
| Strategic | Sep 24, 2024 | ||||
| Grant | Aug 1, 2024 | ||||
| Grant | Mar 25, 2024 | ||||
Grant | Feb 6, 2024 |
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Key People
Founding team and executive leadership
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Sublime Systems Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Suffolk Technologies | Strategic |
| Holcim Accelerator | Strategic |
| The Engine | Series A, Seed |
| Engine Ventures | Series A, Seed |
| Gigascale Capital | Series A |
| CRH Ventures | Strategic |
| My Climate Journey Collective | Series A |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Mar 17, 2026
Filed for bankruptcy in the four weeks prior to April 14, 2026.
- Mar 17, 2026
Two-thirds of staff laid off in the four weeks prior to April 14, 2026.
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Sublime Systems Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about Sublime Systems's valuation, stock price, and market status.
Is Sublime Systems a public or private company?
Sublime Systems is a private company.
What is the current stock price of Sublime Systems?
Sublime Systems is a private company, so its shares have no public market price. Caplight tracks Sublime Systems's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Sublime Systems worth (valuation)?
Valuation information for Sublime Systems is not publicly available.
Can I buy Sublime Systems stock?
Sublime Systems shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Sublime Systems's last funding round?
Sublime Systems's most recent funding round was Strategic on May 20, 2025.
Who are the main investors in Sublime Systems?
Key investors in Sublime Systems include The Engine, Lowercarbon Capital, Holcim MAQER Ventures.
Will Sublime Systems IPO soon?
No public IPO plans have been announced for Sublime Systems.
How can I track Sublime Systems secondary market activity?
Caplight tracks bids, offers, and trades in Sublime Systems's shares on secondary markets.