Heirloom
PrivateLast Round
Strategic
Feb 25, 2025
Total Funding Raised
$203.73M
Company Overview
Heirloom is a clean technology company that specializes in carbon capture and utilization (CCU) solutions that enhance the natural absorption of CO2 from the atmosphere through an accelerated limestone process, enabling sustainable practices and cost-effective carbon removal for businesses.
Sector
Energy & Sustainability
Verticals
Carbon Capture, Circular Economy, Sustainable Materials, Clean Manufacturing
Business Model
B2B
Customer Profile
Services & Consulting, Government Contracts
AI Layer
Non-AI
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Heirloom Comps
Public and private peers based on sector, stage, and business model.
Heirloom Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Strategic | Feb 25, 2025 | ||||
| Series B | Dec 4, 2024 | ||||
| Series A | Mar 17, 2022 | ||||
| Grant | Sep 6, 2021 | ||||
| Grant | Jun 23, 2021 | ||||
Seed | May 1, 2021 |
Heirloom Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Carbon Removal Partners | Series A |
| Development Bank of Japan | Series B |
| Breyer Capital | Series A |
| MOL Switch | Series B |
| TIME Ventures | Series A |
| Carbon Direct Capital Management | Series B, Series A |
| Siemens Financial Services | Series B |
Market signals
Structured signals derived from secondary market and firmographic data.
- Feb 17, 2026
Stripe, Shopify, and Klarna are early customers.
- Dec 4, 2024
$150M raised in Series B round.
Heirloom Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Heirloom's valuation, stock price, and market status.
