Share Cap Simulator
A scenario planning tool for founders and early stage companies to model fundraising rounds, track ownership dilution, and explore exit outcomes across different investment strategies.
What this is
The Share Cap Simulator is a financial modelling tool designed to help founders and early stage teams understand the impact of fundraising decisions before they happen. You can model multiple funding rounds, compare different investor structures, test SAFE and convertible note scenarios, and simulate exit outcomes to see how proceeds would be distributed among founders, investors, and option holders.
The platform includes built-in rules that flag common structural issues—such as excessive dilution, underfunding, or complex preference stacks—helping you identify potential problems early in your planning process.
What this is not
This is not financial, legal, tax, or investment advice. It is a planning and scenario analysis tool. Outputs are indicative and based on the data you provide—they should be validated against formal legal documentation and reviewed with professional advisers before making any decisions.
This is not a cap table management system. It does not handle share certificates, legal ownership records, or compliance filings. For those needs, you should use dedicated cap table software or work with your lawyers and company secretary.
How it works
The simulator is organised around five core areas that mirror the typical fundraising journey:
- Company and Founders Create your company profile, add founders and early stakeholders, and set initial shareholdings to establish your starting cap table.
- Investors Add confirmed and prospective investors to model different funding scenarios and investor combinations.
- Rounds Build your funding roadmap by creating equity rounds, SAFEs, or convertible notes. For each round, set pre-money valuation, target raise, and investor contributions. Convertibles automatically convert at the next priced equity round.
- Dashboard Review your complete cap table evolution, ownership percentages at each stage, and rules flags that highlight potential structural concerns.
- Exit simulator Model different exit values to understand how proceeds would be distributed across all stakeholders based on their holdings and investment terms.
Getting started
- Create your company and add founders with their initial shareholdings
- Add investors you're speaking with or considering for future rounds
- Build your first round (seed, pre-seed, or SAFE) with a pre-money valuation and target raise
- Allocate contributions from investors to see how ownership changes
- Add subsequent rounds to model your full fundraising roadmap
- Check the dashboard to review dilution and any flagged issues
- Use the exit simulator to understand outcomes at different exit values
Everything can be edited and adjusted as your plans evolve. The simulator is designed for iteration—try different scenarios, compare options, and refine your strategy.
Important information
This application is provided for scenario planning and educational purposes only. It does not constitute financial, legal, tax, or investment advice. Outputs are indicative and should be validated against formal legal and finance documentation and professional advice.
Data entered into the platform is stored securely on our servers and used to provide core functionality, reporting, and product analytics. We may use aggregated and anonymised data to improve the product and generate high level insights.
No company specific, identifiable, or confidential information will be shared or published. Individual company data is never disclosed to third parties without explicit consent.