Carbon is a climate-tech company focused on technologies that reduce or remove carbon emissions. Publicly available results here do not identify a single definitive private company profile for employee count, founder year, headquarters, or CEO.
Access to pre-IPO shares is available to accredited investors through UpMarket.
Carbon shares are not on public exchanges. UpMarket provides accredited investors access through secondary market transactions.
Confirm eligibility under SEC Rule 501 of Regulation D. Income or net worth threshold applies.
Complete KYC/AML onboarding. Typically 1–2 business days. Licensed rep assigned on signup.
Full offering memoranda and risk disclosures provided before any commitment is required.
Review and sign subscription agreement. All documents handled digitally through the platform.
Wire transfer or ACH. $50K minimum. Funds held in custodial account until close.
Pre-IPO investments are illiquid, speculative, and involve risk of total loss of capital.
Carbon Equity launched Co-Invest Fund I to back climate tech companies and targets a 25% IRR, signaling appetite for higher-return private market exposure. The move broadens access to a market where climate-focused private equity and venture funds are typically hard for smaller investors to reach.
MIT Sloan says catalytic climate finance uses philanthropic capital to reduce risk in early-stage green investments and draw in private funding. The same research notes many breakthrough technologies, including green concrete, hydrogen, and aviation fuel, still struggle to scale because they cannot attract enough early capital.
MacArthur Foundation says catalytic capital accepts disproportionate risk or concessionary returns to generate impact where conventional capital will not go. The consortium describes it as a tool that can unlock additional investment, expand opportunity, and fuel innovation in underserved markets.
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No. As of March 2026, Carbon is a private company and does not trade on any public stock exchange. Accredited investors can access Carbon shares through UpMarket, a FINRA-registered broker-dealer that specializes in pre-IPO investments.
Carbon does not have a public stock price because it is privately held. The most recent known share price comes from its last funding round. Pre-IPO share prices on the secondary market may differ from the last round price depending on supply, demand, and market conditions.
Yes. Accredited investors can indicate interest in Carbon shares through UpMarket by filling out the form on this page or creating an account at upmarket.co. All pre-IPO offerings are subject to availability and require a $50,000 minimum investment. UpMarket is a FINRA-registered broker-dealer and has brokered alternative investments since 2019.
Pre-IPO investments carry significant risks. Carbon shares are illiquid, meaning there is no public market to sell them quickly. There is no guaranteed exit timeline or return. The investment is speculative in nature, and investors should be prepared for the possibility of total loss. Valuations of private companies can fluctuate substantially between funding rounds. Investors should consult their financial advisor and review all offering documents before investing.
In a pre-IPO transaction, accredited investors purchase shares from existing shareholders (such as employees, early investors, or other holders) through secondary market platforms. The company itself does not issue new shares in these transactions. UpMarket facilitates these trades as a FINRA-registered broker-dealer, handling compliance, documentation, and settlement on behalf of both parties.
There are two primary exit paths for pre-IPO holdings: selling your shares on the secondary market to another buyer, or holding until the company completes an IPO or is acquired. Both paths are subject to transfer restrictions, company approval (right of first refusal), and market conditions. The timing of any exit is unpredictable, and investors should plan for a multi-year holding period.
The minimum investment for most pre-IPO offerings on UpMarket is $50,000. This amount may vary depending on the specific offering and share availability. There are no fees to create an UpMarket account or browse available investments. Investors only pay transaction-related fees when they complete an investment.
UpMarket's valuation estimate of is derived from a proprietary model that incorporates multiple data sources: funding round data (Caplight), revenue estimates (Sacra), secondary market pricing, and public company comparables. The model applies a private company discount to the public comp multiple to account for illiquidity and information asymmetry. This estimate is not investment advice and may differ substantially from the price at which shares actually trade.
Carbon develops climate-tech technologies aimed at reducing or removing carbon emissions, while Carbon Equity’s co-invest fund is expanding investor access to the sector — accredited investors can access Carbon stock through UpMarket.