FounderCatalyst Verified
Earn the badge that tells investors you're ready. Investor-grade evaluation of your pitch deck and financial model.
Free stuff
Templates, guides and calculators for founders running their own round - no signup required.
Startup legals at startup prices from the highest rated, fastest growing platform
Ace your SEIS/EIS, execute your funding round, manage investors and set up share option schemes with expert guidance every step of the way. From family and friends, through pre-seed to Series A, always at the most cost effective price.
What's your current goal?
Secure SEIS/EIS relief
SEIS/EIS is one of the strongest incentives for your early-stage investors. We handle the advance assurance application fast, so you can close sooner.
Raise funds
You're raising funds, but the process is complex. Simplify it with expert guidance and SEIS/EIS support. You just focus on growing your business.
Motivate your team
EMI and unapproved share options align your team's goals with your mission, giving them real ownership and retaining talent to drive growth.
£2.8M raised for just £1,450
And higher rated than competitors, according to Trustpilot.
“As a founder building an agentic AI platform for workforce planning in supply chains, I'm always looking for tools that save time and money. FounderCatalyst delivered both - the process was seamless, and it cost less than a tenth of what I was quoted elsewhere. It let us stay focused on growing the business, not buried in fundraising admin.”

Been there and done it
We are successful exited founders and angel investors: we provide personal guidance, consistency and expertise. We get you.
Meet the teamOur pricing is fair and transparent
No hidden fees. No extras. No catch. Whether a one-off fee or a subscription price, you will always get a fixed price from us.
View pricingWe are fast
Especially when it comes to fundraising, speed is a key aspect. We returned an SEIS/EIS advance assurance in as little as 3 working hours. That is fast!
See case studiesYou are not alone
We will be there to support and give you guidance. It's not only us. You will be supported by a community of hundreds of founders like you.
Learn moreBecome FounderCatalyst Verified and reach investors faster
Earn the FounderCatalyst Verified badge to show you're investment-ready, plus an Investor letter - no investor list needed for your SEIS/EIS advance assurance application. Get expert feedback on your deck and financial model before you go live, unlock the 'Get investors' guide (angel search engines, UK angel networks, crowdfunding discounts, a free FundMyPitch listing), and use the 'Boost' page to put your raise in front of new investors and track their interest in real time.
Learn moreHear what our customers
have to say about us
In their words
A sample of testimonials from founders, advisors and investors who have worked with us.
“FounderCatalyst were first class from start to finish. The help provided in navigating the minefield of SEIS/EIS advance assurance and fundraising legal documentation has been invaluable. They never tired of answered my questions enabling a smooth process for us founders and our investors in as far afield as Australia. I cannot recommend them highly enough.”
“The whole experience from entering details and completing EIS advance assurance forms to signing the final legal documents was so simple and intuitive.”
“I have had an excellent experience, Sam, Max and Rebecca all super helpful, easy to get hold of, patient and happy to explain and help first timers. I wholly recommend and look forward to our investor journey having just received our SEIS and EIS assurance in 48 hours. Great value, great people, great service.”


“We founded Giles AI to dramatically accelerate clinical and medical research using secure, cutting-edge, conversational AI. The impact is transformative: a typical 10-year, $1.5bn drug or device development pipeline can be accelerated significantly – getting life-saving innovations to market faster than ever before. With our collaboration with Google, our recent £750K pre-seed raise gives us the runway to scale rapidly - FounderCatalyst were instrumental facilitating the raise, providing expert legal guidance and an incredibly efficient process that let us stay focused on building the future of medical research.”


“FounderCatalyst's services and support has been instrumental in guiding us through the intricacies of SEIS/EIS advance assurance and our legal paperwork, including clarifying the legal jargon. This has significantly contributed to our early stage growth.”
“Sam Simpson and FounderCatalyst are highly reliable. I know many founders who rate Sam and he has been a great asset to AIS as facilitator. As a founder now, I rely on Sam’s expertise - helping me through my startup journey.”


“Strongly recommend this to all SEIS/EIS founders who need to do their legals and raise completed in a simple, straightforward, compliant low cost way. Sam and team go above and beyond.”


“Phenomenal! Sam and his team at FounderCatalyst helped demystify our route ahead and provided invaluable insight and support in obtaining our SEIS Advanced Assurance. I don't believe we would have done it without him. What's more, the approval only took 5.5 business hours from submission. Far faster than HMRC was advising themselves. I firmly believe this was down to the solid preparation and support provided by FounderCatalyst.”


“I approached my first funding round as a naive, first time founder with more to learn than I realised. From day 1, the FounderCatalyst team gave their time, knowledge and guidance in abundance. All I can say is that I thank my lucky stars that our paths crossed - I consider myself incredibly fortunate. With FounderCatalyst, you know they genuinely care about the success of the people they work with. They have made the HMRC AA process for SEIS a breeze. They has helped perfect our pitch deck, sanity check our financials and get our ducks in a row for our funding round, as well as give us that all important optimism when things get bumpy. The FounderCatalyst platform gives me and our investors complete confidence in arranging legals. Thank you!”


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