Cornerstone
The investor portal and company OS for founders raising
Run the raise and the back office from one place. Investors get a portal that opens up as they progress; you get the financial, legal and operating record that a raise actually depends on.
UK SEIS/EIS and US Reg D · your brand, your domain
The raise
From first contact to shares issued, in one permissioned place.
Investor onboarding
Investors certify their category before any offer material is shown, and the signed statement is recorded. Access opens by tier as they progress from prospect to shareholder.
Data room
Every document is gated by tier and served through signed, audited links. Locked items stay visible so investors know what unlocking earns them.
Rounds and reservations
Publish a round with its terms, take reservations against a live allocation, and track commitments through to allotment.
Scheme compliance
SEIS/EIS advance assurance, the fundraise pack, the SEIS1/EIS1 timeline and per-investor certificates for UK raises; Reg D and Reg CF paths for US companies.
The company behind it
Investors do not fund a data room. The operating surfaces keep the record that makes a raise credible — and each one drafts from your own data, not from a blank page.
CFO
Financials, runway, cap table and use-of-funds — with review gates on anything that reaches a board or an investor.
CMO
Brand profile, messaging and go-to-market, feeding the investor narrative from the same source as the deck.
CTO
Architecture, IP and technical condition, captured as evidence rather than assertion.
Legal
Governance documents, statutory filings and the readiness register that tells you what is missing before diligence does.
Every number traces back
A confident, unverified figure in a board pack is worse than no figure at all. So the documents Cornerstone produces are bound to your records rather than written from scratch: a business plan that shows which inputs are still missing and who owes them, a fundraise pack whose compliance wording is templated rather than generated, and extracted facts that keep the quote and page they came from.
Access is enforced in the database, not the interface. An investor sees what their tier permits and nothing else, whatever the front end is asked to render.
Set up your portal
Provision a portal under your own brand, invite your first investors, and open a round when you are ready.
Cornerstone is software for running a raise and the records around it. It is not a financial promotion, and it is not legal, tax or investment advice — approval of any promotion, and the advice behind a raise, stay with your own advisers.