Seisly is every tool you need to raise – incorporation, advance assurance, investor outreach, fundraising documents, cap table – with Cecily, your Seisly agent, to run them for you. So you get back to building.
Start free. Advance assurance from £99. You approve every investor send.
Cecily
Your Seisly agent
Prepared your SEIS advance assurance
AssuranceMatched 24 investors to your thesis
OutreachDrafted 12 intro emails in your voice
Outreach3 messages ready to send
Waiting for your approval
You stay in control of every investor send.
Why Seisly
Then the week vanished into investor lists, cold emails, chasing replies and bookkeeping – and the product you actually care about kept waiting.
Where the week goes
Where it should go
Cecily takes the left, so you get the right back.
Every tool you need to raise, plus an agent to run them – for a fraction of the cost of a hire, and none of your cap table.
Meet CecilyThe platform
Every stage of getting funded, in one place – Cecily drafts and prepares, you approve, and then she acts.
Form your company and get set up to trade, files prepared for Companies House.
Pass HMRC's SEIS and EIS check with the application prepared for you.
Founder-authored outreach, with approval controls and sending from your own connected mailbox.
Track shares, options and ownership, kept current as you raise.
ASAs, SeedFASTs, co-founder and shareholder agreements: standard-form templates you complete, checked against your SEIS and EIS relief.
Guidance on preparing your SEIS and EIS compliance statement, so investors can claim relief with their SEIS3/EIS3 certificates. Filing with HMRC is a paid add-on.
Investor outreach
She researches investors, matches them to your thesis and drafts intros in your voice – then queues them for you. Nothing goes out until you approve it. You're always the sender, and it's always yours.
Outreach queue
12 draftedPriya N.
Ada Ventures · 92% fit
Marcus L.
Seedcamp · 88% fit
Elena V.
Fuel Ventures · 84% fit
You choose what goes out
Fundraising documents
ASAs, SAFE notes, term sheets, board consents – Cecily prepares the templates, auto-filled from your company and your round, ready for you and your adviser to complete.
And because she knows the SEIS and EIS rules, she flags anything that would break your relief – a discount that voids it, or a long-stop date that misses the window.
Your round documents
Auto-filledAdvance Subscription Agreement (ASA)
ReadySAFE note
ReadyTerm sheet
ReadyBoard resolution
ReadyShareholders' agreement
DraftChecked against your SEIS relief
Flagged a valuation discount that would have voided it.
You and your adviser sign off the finals.
Beyond the raise
The plan is for Cecily to keep the back office moving – matching your receipts and keeping your books ready. The admin that used to eat your evenings, handled.
A co-founder who does the boring bits, too.
Back office, this week
42 receipts matched to your bank feed
VAT return drafted for your review
You approve anything that leaves your account.
How delegation works
01 · Understands
She pulls in your company, shares and trade, and knows exactly which rules apply to you.
02 · Acts
Prepares your assurance, matches investors and drafts your outreach.
03 · Checks in
Sends, filings and signatures pause for your approval. You stay accountable for every decision.
Pricing
Pay once for the assurance, or put the agent on your whole raise.
Advance assurance
Live£99+ VAT, one-off
Get funded-ready, on your own
Add Human review £199 + VAT, then Submission £199 + VAT where your Human review is clear.
Get advance assuranceSeisly for your raise
In build£29+ VAT / month
Your agent, operating the whole raise
Coming soon
£29 + VAT a month, or £299 + VAT a year (£49 off twelve months). Rolling out now.
Not generic AI
Cecily is trained on the hard-won knowledge of operators with over 30 years in startups and SMEs. She doesn't guess at the rules – she learned them from people who have lived them, across every discipline a raise touches.
Who's behind it
Adviser, founder, and once an investor too – Seisly, and Cecily, are built from all three vantage points, not one.
A decade preparing, advising on and taking over applications.
The assurance engine reflects what actually passes.
Founded companies, and the UK's first SEIS fund, and raised the money himself.
The OS is shaped around where a founder's week really goes.
Was CEO of the fund manager of a £150m PE fund, and founded the UK's first SEIS fund – years on the side of the table that writes the cheques.
Outreach is built on what makes an investor actually reply.
Sectors he's worked across
Sanjay Wadhwani
Founder · ICAEW Fellow · Chartered Tax Adviser
FAQ
Not sure where to start? Run the free diagnostic – it tells you before you pay a penny.
No. Cecily researches, matches and drafts, but every investor message waits for your approval before she sends. You authorise each one – you're always the sender.
She prepares your SEIS and EIS advance assurance now. Investor outreach and her wider skills are rolling out in early access – join the waitlist.
Tools give you more to do. Cecily does the work for you – preparing your assurance and drafting your outreach – and you approve the decisions that matter.
No. You can pay £99 once for advance assurance and nothing else. The subscription is for when you want the agent on the whole raise.
You are, always. Cecily drafts, prepares and queues; you approve and send. Nothing reaches an investor or leaves your account without your say-so.
Start with a free diagnostic. Add Cecily when you're ready to raise.