Carbon13 SEIS Fund

Don’t invest unless you’re prepared to lose all your money invested. This is a high-risk investment. You could lose all the money you invest and are unlikely to be protected if something goes wrong.

Linking climate action to investment opportunity

Carbon13 is the venture builder for the climate emergency. By the end of 2024, we will select and support 1500 entrepreneurs through the venture builder, linking them to the Cambridge sustainability network and our corporate partners.

These entrepreneurs will build scalable ventures with the potential to reduce carbon emissions by over 400 million tonnes or 1% of global emissions.

The Carbon13 SEIS Fund offers certified high net worth investors, certified sophisticated investors and self-certified sophisticated investors the opportunity to invest in the next generation of high-growth businesses focused on the climate emergency (see Disclaimer below).


Low-carbon and high return

Targeting startups with the potential of high growth and significant ROI by focusing on reducing carbon emissions by 10 million tonnes each  


Capital is intended to be deployed in the 2023/24 tax year

De-risked startups  

The startups will be shaped by the rigorous Carbon13 venture builder programme  


Tax efficient

Ventures will be UK domiciled and we expect them to be SEIS eligible.


Strong, proprietary deals generated by the venture builder programme  


Diversified portfolio  

Balanced across business models and investment themes  

Investment Criteria

  1. The Carbon13 Seed Fund investment will get the ventures to a value point where they can raise outside seed investment or venture capital. All ventures must have the potential for high growth and to reduce carbon emissions by 10 million tonnes. 

  2. Carbon13 is business model agnostic – digital, technical and traditional business models all have a role to play in a net zero economy. 

  3. Carbon13 expects its venture founders to reflect a diverse cross-section of society. It is our strong belief that diversity leads to better outcomes for early stage ventures and we will strive to achieve this ambition.  

  4. Ventures will be UK domiciled and we expect them to be SEIS eligible.

Carbon13 Pathfinder

For further information about investment, please complete the form to download the Carbon13 pathfinder. NB, if you’ve not received it within 2 minutes, please check your spam folder. 

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The Fund is categorised as an Unregulated Collective Investment Scheme (UCIS). UCIS are classified as higher risk investments and are therefore suitable for certified high net worth investors, certified sophisticated investors, self-certified sophisticated investors who are meeting the criteria stated within COBS 4.12 of the FCA handbook. If you are uncertain with regards to your eligibility you should seek professional advice in this respect.

This pathfinder document does not constitute an offer to sell or a solicitation of an offer to buy shares within the Fund. Subscriptions in the Fund can only be made by following the application process outlined within the Funds Information memorandum. The value of Investments within funds can go down as well as up and you may not get back all that you invest. It is the responsibility of all users to be informed and to observe all applicable laws and regulations of any relevant jurisdiction, and to satisfy themselves that their use of this information and any subsequent investment in the portfolio is permissible under the applicable laws, rules and regulations of any applicable government, governmental agency or regulatory organisation where they reside.

This document does not constitute an offer by the Investment Manager, the Investment Advisor or any other person to invest in the Fund or act as your investment manager or an invitation for you to offer the same.

If you qualify as an eligible complainant as defined in the FCA Rules you may be eligible for compensation from the Financial Services Compensation Scheme (FSCS) in cases of loss arising from issues such as poor investment management or misrepresentation; or if the Fund Manager goes out of business and cannot return investments or money. For more details of how the FSCS investment protection scheme works, please see


Our corporate partners

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Important information

Estimated reading time: 2 min

Due to the potential for losses, the Financial Conduct Authority (FCA) considers this investment to be high risk.


What are the key risks?

1. You could lose all the money you invest

  •  If the business you invest in fails, you are likely to lose 100% of the money you invested. Most start-up businesses fail.

2. You are unlikely to be protected if something goes wrong

  •  Protection from the Financial Services Compensation Scheme (FSCS), in relation to claims against failed regulated firms, does not cover poor investment performance. Try the FSCS investment protection checker here
  •  Protection from the Financial Ombudsman Service (FOS) does not cover poor investment performance. If you have a complaint against an FCA-regulated firm, FOS may be able to consider it. Learn more about FOS protection here.

3. You won’t get your money back quickly

  •  Even if the business you invest in is successful, it may take several years to get your money back. You are unlikely to be able to sell your investment early.
  •  The most likely way to get your money back is if the business is bought by another business or lists its shares on an exchange such as the London Stock Exchange. These events are not common.
  •  If you are investing in a start-up business, you should not expect to get your money back through dividends. Start-up businesses rarely pay these.

4. Don’t put all your eggs in one basket

  •  Putting all your money into a single business or type of investment for example, is risky. Spreading your money across different investments makes you less dependent on any one to do well.
  • A good rule of thumb is not to invest more than 10% of your money in high-risk investments

5. The value of your investment can be reduced

  • The percentage of the business that you own will decrease if the business issues more shares. This could mean that the value of your investment reduces, depending on how much the business grows. Most start-up businesses issue multiple rounds of shares.
  • These new shares could have additional rights that your shares don’t have, such as the right to receive a fixed dividend, which could further reduce your chances of getting a return on your investment.

If you are interested in learning more about how to protect yourself, visit the FCA’s website here