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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.

5.0 on Trustpilot· No credit card required.

We work with some of the biggest names in the industry

Jumpstart logoColorintech logoThe Startup Foundry logoCrowdcube logoAntler logoFuel Ventures logoSFC Capital logoRepublic Europe logoInnovate UK logoDigital Catapult logoFundMyPitch logoSETsquared Partnership logoAscension logoAngel Groups logoEnvestors logoAngel Investors Bristol logoFocused for Business logoSyndicateRoom logoFemale Founders Rise logoshipshape.vc logoSwoop Funding logo

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.

Case study

£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.”

Phillip Sewell
Phillip Sewell
CEO, Predyktable
FounderCatalyst
£1,450
Fixed price
★★★★★ 5.0 · Trustpilot
SeedLegals
£10,000+
Membership + percentage of raise
★★★★★ 4.8 · Trustpilot

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 team

Our 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 pricing

We 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 studies

You 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 more

Become 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 'Sources of Funding' 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 more

Hear what our customers
have to say about us

What founders say

In their words

A sample of testimonials from founders, advisors and investors who have worked with us.

“FounderCatalyst were incredible in helping us close our SEIS round ahead of a tight deadline. They offered great 1-1 support through the entire S/EIS Advance Assurance and fundraise process. I couldn’t recommend Sam and the team more highly to any founders raising investment!”
Lauren O'Donnell
Lauren O'Donnell
Founder, Oatsu
Oatsu logo
“I’m so glad I was introduced to FounderCatalyst. They are the absolute go-to team for SEIS Assurance and fundraising legal paperwork. Their advice is succinct, and any questions are answered quickly, usually within an hour which is incredible service. The FounderCatalyst community is super supportive. I’ve seen it grow tenfold in less than 12 months, I guess that says it all…”
Damian Williams
Damian Williams
Founder, Damian Williams
Damian Williams logo
“If you want speed, service and cost efficiency. FC are your guys. - Wow! FC is another level of good. From my first intro call with Sam (he was keen to explain and simplify the process for us) to concluding investment and issuing the SEIS3 certificates to investors, the process has been so intuitive and efficient....and speedy! The human response time on their support is remarkable. I used the 'other' guys for years and this is a whole different experience...and MUCH cheaper. Bravo.”
Aaron Loveman
Aaron Loveman
Director, The Good Food Family
The Good Food Family logo
“I turned to Sam at FounderCatalyst after being misguided by his competitors about eligibility for SEIS as an investor. I have spent three weeks emailing HMRC and my legal team and could not get a straight answer. Sam gave me a definitive explanation the following day. From now on I will be using FounderCatalyst for all my equity funding legal needs!”
Peter Slotwinski
Peter Slotwinski
Investor, Intra Drive Ltd
Intra Drive Ltd logo
“FoundersCatalyst simplified the complex investment process experience from start to finish. Their platform has everything you need, and when it comes to queries, their team's response time is first class. They simplified my SEIS/EIS Advance Assurance application making everything straightforward and the entire process moved at an impressive pace, letting me focus on business rather than more paperwork. Highly recommended for any founder!”
Simon Neave
Simon Neave
Founder, Leep Health Limited
Leep Health Limited logo
“I'm always happy to recommend FounderCatalyst to other founders - there's so much added value to being a customer! You become part of a great founder community, and Sam and his team are always on hand for support with any burning questions you have around fundraising and legals.”
Judy Leung
Judy Leung
Founder, Sweqlink
Sweqlink logo
“I had a fantastic experience with FoundersCatalyst from start to finish (and continue to receive ongoing support). They responded quickly to my initial inquiry, providing excellent guides and transparent information about fees, how the platform works, and what to expect. After following their templates and guidance, we submitted our pitch deck and financial forecast, and Founders Catalyst handled our SEIS application to HMRC. We received approval within three weeks, with no complications. The platform is straightforward to set up, offering term sheets, a data room etc., and a wealth of video/blog content to help. For specific inquiries, their ticketing system is incredibly responsive—usually within a few hours. On top of that, there’s an excellent community on WhatsApp, which includes all the FC staff as well as peers who are friendly, welcoming, and happy to answer even our "stupid questions" throughout the entire funding journey. I can't recommend FoundersCatalyst enough. The founder, Sam, is exceptionally knowledgeable and very generous with his time, supporting every founder to succeed in their funding rounds.”
Zoe Robson
Zoe Robson
Founder, Strateva Group
Strateva Group logo
““FounderCatalyst have been really helpful for our startups’ investment round. We received advanced assurance for our SEIS/EIS application within 2 days of submitting it through FounderCatalyst, and the various support systems, pitch reviews and Whatsapp groups have been great as well. On top of all that, we’ve also set up all of our legal documentation and data room through FounderCatalyst, which is amazing.””
Joseph Babbage
Joseph Babbage
Co-Founder, DataHarmony
DataHarmony logo
“My initial funding round has involved a foreign investor with stringent compliance procedures - this has resulted in lots of back and forth. The FounderCatalyst team were absolutely amazing going above and beyond the support with platform and explanation of various documents. They were always available to hold our hand to support with all the requirements and the custom inputs required to ensure our documents complied with the needs of the foreign investor. This was really no easy feat!!! I cannot thank the FC team enough as well as the supportive FC community for getting us through this.”
Rupa Ganguli
Rupa Ganguli
Founder, Inclusive Trade Limited
Inclusive Trade Limited logo

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