For many UK startups, finding early-stage investment can feel like an uphill battle. The Seed Enterprise Investment Scheme (SEIS) offers a vital funding pathway that helps young businesses raise capital while offering generous tax incentives to investors. If you’re a founder seeking to take your idea from concept to launch, SEIS funds could provide the boost you need.
This guide explores 25 active SEIS funds currently supporting startups in the UK. You’ll discover how they work, when to approach them, and which funds align best with your business goals.
Understanding SEIS Funds
SEIS funds pool investment from multiple investors and distribute it among qualifying early-stage companies. These funds are specifically designed to help startups access capital during their most critical development phase—when traditional funding is often out of reach.
Key advantages for startups:
- Access to capital: Raise up to £250,000 to develop your business or product.
- Investor attraction: Up to 50% income tax relief makes investing in SEIS startups highly appealing.
- Added support: Many SEIS funds offer mentorship, industry expertise, and networking opportunities alongside their financial backing.
By securing investment through an SEIS fund, founders not only access essential funding but also benefit from strategic partnerships that can accelerate growth.
When Should You Approach SEIS Funds?
Timing your approach correctly is crucial. SEIS funds are best suited for startups in their earliest stages—often when you’ve built a prototype or an MVP (Minimum Viable Product) but haven’t yet scaled.
Before reaching out, make sure you can answer two key questions:
- Do you have SEIS Advance Assurance?
This document, issued by HMRC, confirms your eligibility for SEIS tax relief. Most investors will require it before considering your application. - Is your business plan investor-ready?
Investors want to see a clear market opportunity, initial signs of traction, and a strategy for scaling. Make sure your vision and financials are well-defined.
How to Secure SEIS Funding
To improve your chances of securing SEIS investment, follow these three essential steps:
1. Confirm Your Eligibility
To qualify for SEIS funding, your startup must:
- Be registered in the UK
- Have traded for less than three years
- Own assets worth under £350,000
- Employ fewer than 25 full-time staff
Once you’ve verified these conditions, gather your supporting documentation and prepare for the compliance process.
2. Craft a Strong Investment Pitch
Your proposal should clearly communicate your growth potential and how investor funds will be used. Include:
- A clear, scalable business model
- A compelling pitch deck
- A realistic financial forecast and market analysis
Investors look for businesses with strong teams, measurable traction, and a clear route to profitability.
3. Apply Strategically
Not all SEIS funds are the same. Identify those that invest in your sector and tailor your application to highlight how your startup aligns with their focus. A targeted approach increases your likelihood of success.
25 Active SEIS Funds in the UK (2025 Edition)
Below is a curated list of 25 SEIS funds actively investing in early-stage UK businesses, grouped by their investment focus.
Technology and Software
- SFC Capital – Focuses on tech, AI, fintech, and green innovation. Invests £100k–£300k and provides strong post-investment support.
- Jenson Ventures – Targets digital tech and SaaS startups, offering funding up to £250k and follow-on investment opportunities.
- Haatch – Specialises in B2B SaaS and marketplace models, investing £100k–£250k and providing hands-on mentorship.
- Velocity Capital – Backs B2C and SME tech companies and offers marketing credits through its Velocity Juice program.
- Ascension Ventures – Invests £180k–£300k per startup in healthtech, fintech, and edtech, with a reputation for strong founder support.
- Connect Ventures – Focused on SaaS, fintech, and consumer apps, investing at pre-seed and seed stages.
- Crane Venture Partners – Supports SaaS and data-driven businesses, offering early-stage capital and operational expertise.
- First Monday VC – Works with ambitious tech founders, offering funding and access to experienced mentors.
- Episode 1 – Invests £250k–£2m in B2B software startups, helping founders navigate early growth.
- Force Over Mass – Specialises in AI, fintech, and Industry 4.0, with a focus on scalable European innovations.
- Fuel Ventures – Invests up to £250k in tech startups, combining capital with portfolio guidance.
- Frontline Ventures – Focuses on B2B SaaS founders with international ambitions, especially those expanding to the US.
Regional and Deep Tech
- DSW Ventures – Backs regional UK startups in software and deep tech, investing £100k–£1m with hands-on management support.
- 3 Sisters Ventures – Invests in femtech, fintech, and future-of-work sectors, supporting consumer-focused ventures.
- Martlet Capital – Cambridge-based fund investing in deep tech and life sciences startups.
- Nauta Capital – Focused on efficient, disruptive B2B software businesses in Europe.
- Northzone – A multi-stage investor supporting high-growth startups across multiple industries.
Life Sciences and Biotech
- o2h Ventures – Invests in biotech and AI-driven drug discovery startups, often as a first institutional investor.
- Anthemis – Focuses on financial innovation and creating a more inclusive financial ecosystem.
- Archangels – Based in Scotland, invests £250k–£2m in IP-rich tech and life science companies.
Climate and Sustainability
- Speedinvest – Supports deep tech, fintech, and climate solutions at the seed and Series A stages.
- Sustainable Ventures – Invests in early-stage climate tech startups and provides a year-long accelerator program.
- TrueSight Ventures – Backs European tech startups solving major problems in large markets.
- Firstminute Capital – A founder-led fund investing £250k–£3m in visionary, tech-driven startups.
- Worth Capital – Invests in creative, high-growth startups and helps build strong, scalable brands.
Taking the Next Step
SEIS funds play a vital role in helping startups secure early-stage capital and guidance. With so many active funds available across sectors, the key is finding one that matches your vision and growth ambitions. By preparing your pitch, confirming eligibility, and approaching the right investors, you can access the funding and expertise needed to take your startup to the next level.
