FounderCatalyst Verified
Earn the badge that tells investors you're ready. Pitch deck and financial model reviewed by a serial angel.
Free stuff
Templates, guides and calculators for founders running their own round — no signup required.
SEIS advance assurance in 3 working hours
How Steven Down, founder of OnlyHelix, went from signup to a fully submitted HMRC advance assurance application in record time.
“FounderCatalyst is nothing short of exceptional! I was absolutely amazed when they delivered SEIS advance assurance in less than 3 working hours. The process was seamless, the team incredibly knowledgeable, and their success rate speaks for itself. If you're a founder looking for the best in legaltech services, I can't recommend FounderCatalyst enough.”
How it happened
From first contact to HMRC submission — here's the step-by-step breakdown of Steven's 3-hour advance assurance.
Submitted Advance Assurance support ticket
Steven completed our streamlined support ticket and attached his pitch deck and financial forecast model (FounderCatalyst has free templates of both these documents!)
Expert review
Our SEIS specialists reviewed the ticket answers and did a deep dive review of both the pitch deck and forecast, highlighting any amendments to Steven.
Application prepared
Following updates to documents, we re-reviewed the documents and once we were sure of eligibility, we drafted and finalised the HMRC advance assurance application with all supporting documents.
Submitted to HMRC
This was submitted to HMRC with a positive response received within 3 working hours.
Ready to get your advance assurance?
Join hundreds of founders who've secured SEIS/EIS advance assurance with FounderCatalyst — fast, affordable, and stress-free.
Partnered with people that push you further
Who we're for
Our services
FounderCatalyst Ltd is a registered company in England and Wales listed as number 12548465. The VAT number is GB 352 3376 08.
© Copyright 2026 FounderCatalyst Ltd. All rights reserved.