Sustainable Ventures SEIS / EIS Impact Funds now OPEN
The Sustainable Ventures SEIS and EIS Impact Funds enable investors to back UK sustainability
and climate tech startups while benefitting from SEIS / EIS tax reliefs.
The SEIS Impact Fund
The Fund will invest into SEIS qualifying investments that have the potential, when at scale, to address one or more of the six sustainability objectives.
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The S stands for Seed, meaning earlier stage companies, which are typically higher risk.
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The government offers higher tax benefits, with 50% of the amount you invest comes off your tax bill as a UK taxpayer.
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The target return is £4 for every £1 invested by the Fund (net of fees) over seven years.
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Initial Fee: 3.5% + VAT for direct investors. Performance Fee: 25% ( + VAT) on returns over 1.25, meaning £1.25 for every £1.00 invested, calculated on a whole fund basis, not individual investments.
IUK EIS Impact Fund
The Fund will invest into 7 companies with the goal of unlocking £3.6m of Innovate UK grant funding to help extend each company’s runway and de-risk their scale-up journey.
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Slightly later stage companies, still risky but typically more mature than SEIS rounds.
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With EIS, you will get 30% of the amount you invest off your income tax bill as a UK taxpayer.
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The target return is £3 for every £1 invested by the Fund (net of fees) over seven years.
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Initial Fee: 0.0% + VAT for direct investors. Performance Fee: 20% ( + VAT) on returns over 1.20, meaning £1.20 for every £1.00 invested, calculated on a whole fund basis, not individual investments.
The current funds opened in January 2025 and are evergreen, with a tranche closing every quarter. The Investment Manager is Sapphire Capital Partners LLP.
The tax treatment referred to above depends on the individual circumstances of each investor and may be subject to change in the future. Tax reliefs are not guaranteed and depend on personal circumstances and HMRC rules. In addition, the availability of any tax reliefs depends on the investee companies maintaining their qualifying status. SEIS and EIS investments involve buying shares in early-stage private companies. These shares are illiquid, difficult to value, and may not be realisable for many years, if at all. Investors should be prepared to lose their entire investment. This investment is not suitable for all investors as the underlying investments are illiquid. Please ensure you review the risk summary in detail.
The EIS Impact Fund
The Fund will invest into EIS qualifying investments that have the potential, when at scale, to address one or more of the six sustainability objectives.
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Slightly later stage companies, still risky but typically more mature than SEIS rounds.
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With EIS, you will get 30% of the amount you invest off your income tax bill as a UK taxpayer.
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The target return is £3 for every £1 invested by the Fund (net of fees) over seven years.
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Initial Fee: 2.5% + VAT for direct investors. Performance Fee: 20% ( + VAT) on returns over 1.20, meaning £1.20 for every £1.00 invested, calculated on a whole fund basis, not individual investments.
Sustainable Accelerator Funds
(NOW CLOSED)
The previous Sustainable Accelerator Funds invested in over 50 deep technology, highly scalable, climate tech focused companies with three exits to date.
The seven cohorts invested between 2017 and 2025 with Republic Capital Adviser LLC (then known as Seedrs) as the Investment Manager.
The IUK EIS Impact Fund
Tranche closing on 24th of August 2026
The Fund will invest into 7 companies with the goal of unlocking £3.6m of grant funding from Innovate UK to help extend each company’s runway and de-risk their scale-up journey. Each of the EIS qualifying investments has the potential, when at scale, to address one or more of six strategic sustainability objectives whilst at the same time targeting top class returns for investors.
Please read the documents below for further information on the fund’s objectives, strategy and risk factors.