For founders & CFOs
The AI operating system for private company ownership.
Everything you expect from a cap table — plus the things it has never let you do: give shareholders liquidity, close strategic equity deals, and reach investors and partners without leaving your ledger.
No card required · Free for early-stage companies
Secondary — company controlled
Illustrative. No transfer is written to the ledger without company approval.
Not a founder? Investors and third-party partners have their own Perseids.
The basics are covered. Migrate in, keep one clean ledger, and stop worrying about the spreadsheet.
- Shares, options, SAFEs, notes, warrants
- Round & dilution modelling
- Fully diluted at any date
- Share certificates
- Board & investor reporting
- Full audit trail
Where Perseids goes further
A cap table records the past. Perseids moves ownership forward.
Company-controlled secondary
Give shareholders a way to sell without a public order book. You set eligibility, price policy and ROFR. Nothing settles without your approval.
Strategic equity deals
Equity-for-IP, reciprocal equity, JVs, warrants and milestone structures — negotiated in a private deal room, versioned, and only then written to the ledger.
A private ownership network
Opt-in profiles connect you to investors and execution partners — brokers, custodians, legal — inside the workflow instead of over email.
Ask Perseids
Plain-language questions answered from your own ledger. AI explains, deterministic engines calculate, humans authorize every change.
Perseids Data Rooms
The diligence room that sits on top of the cap table.
Share your fundraising documents from the same system that holds your ownership record. Named access, per-folder permissions, watermarks, and a full audit trail — no separate document tool, no shared links floating around.
Named access, never a link
Every viewer is an invited, identified party. Access can be time-limited and revoked instantly — a forwarded URL opens nothing.
Permissions to the folder
Grant view or download folder by folder, or document by document. Reusable access groups keep a 40-investor process consistent.
Diligence signal, not vanity stats
See who opened what, how long they spent, and which documents get re-read — then move each investor along a pipeline you control.
Confidentiality on the way in
Require an NDA before the first document loads, with watermarked viewing and an append-only acceptance record.
Included from the Startup plan. Watermarks, NDA gating and analytics from Growth.
How ownership data is protected
- Tenant-isolated by database
- Role-based access
- Human-approved ownership changes
- Full audit trail
Not a founder?
Separate workspaces. One ownership network.
Investors and third-party partners get their own product — not a tab bolted onto a company cap table.
Investors
One portfolio, connected to the source
Holdings, SAFEs, warrants and dilution across every private company you back — updated by the companies themselves, not by your spreadsheet.
Visit Perseids for InvestorsThird-party partners
Execution work, inside the workflow
Brokers, custodians, transfer agents and legal teams receive scoped mandates and see only what their transaction requires. Never the whole cap table.
Visit Perseids for third-party partnersEmployees
The equity you were granted
See your grants, what has vested and what exercising would cost — and offer settled shares when your company opens a window. Access is granted by your company.
Visit Perseids for employeesWhat Perseids is
Perseids is a cap table, equity management, fundraising scenario modeling and investor data room platform for startups, founders and investors.
- What is Perseids?
- Perseids is a cap table, equity management, fundraising scenario modeling and investor data room platform for startups, founders and investors. It keeps a private company's ownership record authoritative and runs the workflows that depend on it.
- What does Perseids do?
- It maintains a cap table as an append-only ledger, manages option pools and grants, models funding rounds and dilution deterministically, runs permissioned investor data rooms, gives investors connected portfolio positions, and supports company-controlled secondary and strategic equity transactions.
- Who should use Perseids?
- Startups and private companies and their founders, finance and legal teams; investors in private companies; employees holding options; and execution partners supporting private transactions.
- Is Perseids cap table software?
- Yes. Cap table management is the core of the product: shares, options, warrants, SAFEs and convertible notes are recorded as transactions, and every ownership figure is derived from them.
- How is Perseids different from spreadsheets?
- A spreadsheet stores a snapshot anyone can overwrite. Perseids stores transactions on an append-only ledger, derives ownership from them, keeps an audit trail, and controls who can see what.
- How much does Perseids cost?
- There is a free Founder plan. Paid company plans start at EUR 39 per month and investor plans at EUR 99 per month, published in GBP, USD and EUR; Enterprise is quoted individually.
More detail: About Perseids, product facts and cap tables explained.
Start with the cap table. Keep going.
Free for early-stage companies. Migrate your existing cap table in an afternoon.