57 SEIS funds investing in UK startups (Free List)
Browse UK SEIS funds investing in early-stage startups.
SEIS funds can be good for both investors and startups.
For investors, they offer significant tax benefits, including income tax relief, capital gains tax exemption, loss relief, and inheritance tax relief.
For startups, they encourage early-stage investment, providing essential capital for growth and innovation.
This ressource starts with a list of active SEIS funds and continues with an in-depth guide to help you navigate the UK SEIS fund ecosystem.
👉 Looking for more early-stage funding options? Explore our full UK venture capital firm list, or browse VC firms by sector to find specialist investors backing startups like yours — from pre-seed to Series A.
57 most active SEIS funds in the UK
Investors (location, website, linkedin, twitter)
| SEIS Funds | Investment Sector | Location | Funding Round | Contact Details |
|---|---|---|---|---|
 3 Sisters Ventures(1 contacts 🔒) 3 Sisters Ventures (3SV) is a London-based venture capital firm dedicated t... |  London | |||
 Air Street Capital(2 contacts 🔒) Air Street Capital is a venture capital firm specialising in AI-first compa... | London | |||
 | London | |||
 Archangels(more info 🔒) Archangels focuses on investing in disruptive technology with protectable i... | Edinburgh | |||
 Battery Ventures(3 contacts 🔒) Battery Ventures is a venture capital firm investing in technology companie... | London | |||
 Blackfinch Ventures(4 contacts 🔒) Blackfinch Group is a dynamic investment group focused on creating a positi... | Gloucester | |||
 Btomorrow Ventures(5 contacts 🔒) Btomorrow Ventures (BTV) is the corporate venture capital arm of BAT, focus... | Data analyticsGeneralistTechnologyHealth monitoring | London | ||
 Cardiff Capital Region(3 contacts 🔒) The firm focuses on three interconnected investment priorities: Innovation,... | Cardiff | |||
London | ||||
 Cherry Ventures(8 contacts 🔒) Cherry Ventures is an early-stage venture capital firm based in Europe, spe... | London | |||
 CircleRock Capital(2 contacts 🔒) CircleRock Capital is a European venture capital syndicate that facilitates... | London | |||
 Clarendon Fund Managers(7 contacts 🔒) The Investment Fund for Northern Ireland (IFNI) is focused on supporting in... | Belfast | |||
 Concept Ventures(6 contacts 🔒) Concept Ventures is the largest dedicated UK pre-seed fund, focusing on res... | London | |||
 DSW Ventures(3 contacts 🔒) DSW Ventures is a Manchester-based venture capital firm focused on investin... | London | |||
 Earlybird Venture Capital(6 contacts 🔒) Earlybird is a venture capital investor focusing on Europe’s tech innovator... | London | |||
 Elbow Beach Capital(5 contacts 🔒) Elbow Beach is a venture capital firm focused on backing technologies that ... | London | |||
 Environmental Technologies Fund(3 contacts 🔒) Fairly Made is a venture capital firm focused on investing in sustainable f... | London | |||
 EQT Ventures(4 contacts 🔒) EQT Ventures is a venture capital firm focused on supporting European compa... | London | |||
 Eterna Blockchain Fund(4 contacts 🔒) This venture capital firm focuses on investing in exceptional entrepreneurs... | London | |||
 Exceptional Ventures(5 contacts 🔒) Exceptional Ventures is a £20M London-based venture capital fund focusing o... | London | |||
London | ||||
 FirstMonday VC(1 contacts 🔒) FirstMondayVC is a club of independent angel investors dedicated to early-s... | Data analyticsGeneralistHealth & fitnessCycling | London | ||
 Forward Partners(1 contacts 🔒) Molten Ventures is a venture capital firm focused on investing in early-sta... | London | |||
 Fuel Ventures(5 contacts 🔒) Fuel Ventures is a venture capital firm that focuses on backing ambitious t... | London | |||
 GameTech Ventures(1 contacts 🔒) STORY is a venture capital firm that focuses on investing in early-stage te... | London | |||
 Hoxton Ventures(3 contacts 🔒) Hoxton Ventures is a European venture capital firm with a focus on early-st... | London | |||
 Moguntia Capital(1 contacts 🔒) | Data analyticsSupply chainTechnologyTech startup | London | ||
 Passion Capital(3 contacts 🔒) Passion Capital is a venture capital firm focusing on early-stage investmen... | London | |||
 Playfair Capital(4 contacts 🔒) The venture capital firm focuses on providing an unfair advantage to founde... | London | |||
 Seedcamp(7 contacts 🔒) The firm focuses on investing in the healthcare sector, particularly in per... | London | |||
 Spark Venture Management(4 contacts 🔒) Spark Venture Management focuses on early-stage investments in the technolo... | London | |||
 Walking Ventures(2 contacts 🔒) Walking Ventures is a London-based seed fund, focusing on Internet and mobi... | London |
Click here for the full list of 801+ VC funds in the UK.
What is an SEIS fund?
In the next sections you will get to know everything about SEIS funds:
- What is an SEIS fund?
- SEIS for companies - how can I qualify?
- SEIS for investors - example (with numbers)
- Should I invest in SEIS?
- Who cannot invest in SEIS?
- What is the 3 year rule for SEIS?
- What is the 2 year rule for SEIS?
- Can I invest in my own SEIS?
An SEIS fund refers to an investment scheme in the United Kingdom known as the Seed Enterprise Investment Scheme. This government-backed program, initiated in 2012, is designed to encourage investment in early-stage businesses by offering various tax reliefs to individual investors.
An SEIS fund is essentially a pool of such investments, managed by a fund manager. The fund manager will select eligible startup companies to invest in, following the rules and guidelines laid out by the UK government.
Here are some of the major tax reliefs under the SEIS scheme:
Income Tax Relief
Investors can claim income tax relief of 50% on investments up to £200,000 per tax year.
Capital Gains Tax Exemption
If the shares are held for at least three years, any gain is free from capital gains tax.
Loss Relief
If the company fails, the investor can claim loss relief. This can be a significant advantage because it lowers the actual at-risk capital.
Inheritance Tax Relief
Shares in SEIS eligible companies will typically be outside of an investor's estate for inheritance tax purposes if held for at least two years.
Capital Gains Reinvestment Relief
If an investor has paid capital gains tax in the last three years, they can claim to defer this when they reinvest the gain into an SEIS company.
As with any investment, investing in an SEIS fund carries risks, and the specific benefits can vary depending on the investor's individual tax circumstances. Therefore, it's advisable to seek professional financial advice before investing.
SEIS for startups - how can I qualify?
For a company to apply for the Seed Enterprise Investment Scheme (SEIS) in the UK, it needs to meet specific criteria and follow certain steps. Here is an overview:
1 - Check Eligibility
The company must be a startup or an early-stage company. It must have fewer than 25 employees, assets of less than £350,000, and it must not have been trading for more than two years.
2 - Raise Funding
The company can raise up to £250,000 under the SEIS scheme.
3 - Submit Compliance Statement
The company submits a compliance statement to HM Revenue & Customs (HMRC) using form SEIS1. This can only be done after the company has been trading for at least four months or has spent at least 70% of the SEIS funds.
4 - Receive Authorization
If everything checks out, HMRC will provide an authorization that the company can distribute to its investors. The company will then receive SEIS2 and SEIS3 forms from HMRC.
5 - Distribute Tax Relief Certificates to Investors
Using the SEIS3 forms, the company provides tax relief certificates to its investors. The investors can then claim tax relief on their SEIS-eligible investments.
This process can be complex, and the eligibility rules and application steps can change. It's recommended to seek professional advice to ensure compliance with all the relevant regulations and to maximise the benefits of the scheme.
SEIS for investors - example (with numbers)
Let's break down the Seed Enterprise Investment Scheme (SEIS) with a numerical example.
Please note that this is a simplified example, and actual results may vary depending on various factors including the individual's tax situation (check with your tax lawyer first ).
Step 1 - Assume you're an investor who puts £10,000 into an SEIS-eligible company. The SEIS program allows you to claim 50% income tax relief on this investment, which is £5,000. So if your income tax bill for the year was £20,000, with your income tax relief, it would now be reduced to £15,000.
Step 2 - Let's say the company does well and the value of your shares doubles to £20,000 over three years. If you then sell your shares, the £10,000 gain would typically be subject to Capital Gains Tax. However, under SEIS, this gain is exempted from the tax as long as you've held the shares for at least three years.
Step 3 - If the company does not do well and your investment becomes worthless, you can claim loss relief. Assume that your marginal tax rate is 45%. The loss on the investment, after considering the initial income tax relief, is £5,000 (since you received £5,000 back in income tax relief, your actual loss is £5,000). You can claim loss relief on this £5,000 at your marginal tax rate, reducing your income tax bill by a further £2,250 (£5,000 * 45%).
Step 4 - Let's assume you had previously sold an asset and made a capital gain of £10,000, on which you paid capital gains tax. If you reinvest this gain into an SEIS eligible investment, you can claim to defer the capital gains tax that you paid. This effectively reduces the cost of your investment.
Should I invest in SEIS?
Whether you should invest in a Seed Enterprise Investment Scheme (SEIS) depends on your individual circumstances, financial goals, risk tolerance, and the specific opportunities available to you. Here are some factors to consider:
Potential Advantages of SEIS Investments:
SEIS Tax Relief
SEIS provides significant tax reliefs. These include income tax relief, capital gains tax exemption, loss relief, and inheritance tax relief, which can help to offset some of the risk associated with investing in early-stage businesses.
High Growth Potential
Early-stage companies might offer higher potential returns than more mature companies if they succeed, given their capacity for rapid growth.
Potential Disadvantages of SEIS Investments:
High Risk
SEIS-eligible companies are typically startups or very early-stage businesses, which are often riskier than more established companies. There is a significant risk that the company could fail, resulting in a total loss of your investment.
Lack of Liquidity
SEIS shares are typically not traded on a public exchange, meaning they can be difficult to sell. You may need to hold onto your investment for an extended period, potentially without receiving any dividends.
Complexity
The rules around SEIS investments can be complex, particularly when it comes to claiming tax reliefs. Mistakes can result in unexpected tax liabilities.
Given the above, SEIS investments can be a good fit for investors who are comfortable with high-risk investments, understand the specific opportunities and risks of the businesses they are investing in, and have a tax liability against which they can offset the tax reliefs.
Who cannot invest in SEIS?
Certain individuals are restricted from investing in the Seed Enterprise Investment Scheme (SEIS) due to specific rules set out by the UK government. These are intended to ensure that the tax reliefs are not exploited, and that they genuinely encourage investment in early-stage companies. Here are some categories of individuals who cannot invest:
Connected Persons
Individuals are considered connected to the company and are not eligible for SEIS relief if they are a partner, director (this does not include non-executive directors), or employee of the company in which they're investing, or a partner, director, or employee of a partner of that company.
Substantial Interest
Individuals who own more than 30% of the shares, voting rights, rights to assets in a winding up, or control over the company are considered to have a substantial interest and are not eligible for SEIS relief.
Associates
The restrictions on connected persons and substantial interest also apply to associates of the investor. Associates include business partners, trustees of any settlement in which the investor or their spouse or civil partner is a settler, and relatives (spouse or civil partner, parents or grandparents, children or grandchildren; but not siblings).
Frequently asked questions
An SEIS fund invests in very early-stage UK startups that qualify for the Seed Enterprise Investment Scheme. These funds help investors access SEIS tax relief while backing high-growth startup companies.
SEIS investors can receive income tax relief of up to 50% on eligible investments, alongside potential capital gains and inheritance tax benefits depending on individual circumstances.
SEIS shares usually need to be held for at least three years to retain the main tax relief benefits available under the scheme.
Founders and employees are generally restricted from claiming SEIS tax relief on investments into their own company, especially if they hold a substantial interest or work for the business.
This directory includes active UK SEIS funds, investor details, fund websites and additional information to help founders and investors explore the SEIS ecosystem.
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