We use cookies
Our site relies on them (cookie policy)

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.

No credit card required.

We work with some of the biggest names in the industry

Female Founders Rise logoSETsquared Partnership logoAngel Investors Bristol logoColorintech logoAntler logoFuel Ventures logoSFC Capital logoRepublic Europe logoInnovate UK logoAngel Groups logoCrowdcube logoDigital Catapult logoSwoop Funding logoEnvestors logoJumpstart logoFocused for Business logoFundMyPitch logoshipshape.vc logoSyndicateRoom logoThe Startup Foundry logoAscension 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
★★★★★ 4.7 · 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.

“Sam and team provide a faultless service. I've been incredibly impressed with the rapid response time of any questions I send, and the level of detail and reassurance provided to make sure we fully understand the process. We flew through the HMRC (S)EIS Advance Assurance process: submitting it just before 5pm on a Monday, and having received confirmation of it by 1:30pm the next day! Can't get much better than that. Really very happy to have chosen FounderCatalyst.”
Jeffrey Nicholas Clark
Jeffrey Nicholas Clark
Director, IngeniumAI
IngeniumAI logo
“This was my first time raising funds and using SEIS, and FounderCatalyst made the process so much easier. They helped me secure Advance Assurance and were incredibly responsive and helpful throughout. Even though they have detailed articles on their site, they patiently answered all my basic questions. Their pricing is also excellent—just a one-time fee, which is great value. The service felt like an Amazon-level experience. I'm happy to say I’ve now raised my first round of funding, and I highly recommend FounderCatalyst to any first-time founder.”
Ajay Thomas
Ajay Thomas
Founder, Euverify
Euverify logo
“The team went above and beyond to ensure our application received SEIS and EIS assurance. They worked very quickly, were always responsive to emails and seemed to work all hours of the days to get it done! When HMRC came back with some questions they helped to answer them in the correct way”
Jennifer Sutcliffe
Jennifer Sutcliffe
CEO & CoFounder, Working Mums Ltd
Working Mums Ltd logo
“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.”
James Tomlin
James Tomlin
CEO, Visa Doc
Visa Doc logo
“Excellent service - comprehensive coverage of a tricky business area. I received huge support as I applied for Advanced Assurance for my Padel Tennis company. With their astute guidance I was able to get all the right documents in place and apply for AA and receive a positive response in less than 48 hours. I would 100% recommend FounderCatalyst to anyone.”
Rupert Welchman
Rupert Welchman
Founder, Southwest Padel Ltd
Southwest Padel Ltd logo
“I used FounderCatalyst to assist with my advance assurance as my situation was unusual. FounderCatalyst built my advance assurance submission for me to save me learning the process, I reviewed and submitted on the 19th of September 2024. I was elated to receive confirmation of advance assurance the very next day.”
Mahara Haque
Mahara Haque
Founder, My Landlord Cares
My Landlord Cares logo
“If you are an early-stage start-up founder looking for legal services to close your round, PLEASE do not look anywhere else. We were working with a legal firm and reached nowhere in 2+ months. A mentor recommended FC and I was able to close the legals in 10 minutes (that claim on the website is indeed true)! The platform, cost and community of founders for getting quick support is AMAZING. And the FounderCatalyst team are approachable and very knowledgeable. Highly recommended.”
Kanu Batra
Kanu Batra
Founder, Speek Health Ltd
Speek Health Ltd logo
“We were initially recommended FounderCatalyst by an advisor to help us through our SEIS/EIS advanced assurance, and they have been nothing short of fantastic ever since. We ran our first fundraise through their platform, and will, without a doubt, use them again for future raises. As an early stage start-up founder I have leant on the team a lot and they have always been prompt (even at 11pm at night!), understanding & right on the money with their advice & support. Thank you FounderCatalyst!”
Paige Gibbons
Paige Gibbons
Co-Founder, Lonkero
Lonkero logo
“Excellent product, service, platform and support. Founder Catalyst do a fantastic job of making things simple for the Founders they support. They are very knowledgeable and helpful. They are also extremely cost effective and will not only save you lots of money but also time. I can't recommend highly enough.”
Kim Lloyd
Kim Lloyd
Founder, Bloodaxe Studios
Bloodaxe Studios logo

Try us free with no commitment

No credit card required.