See exactly how much of your company you keep after each funding round.
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Equity dilution is the reduction in your ownership percentage when a company issues new shares — typically to investors in a funding round or into an employee option (ESOP) pool. A cap table tracks who owns what; simulating it across Seed, Series A and beyond shows founders how much of the company they'll actually keep.
This simulator uses standard pre-money mechanics: an ESOP top-up is created out of the pre-money valuation, so it dilutes existing holders, not the incoming investor. You'll see ownership after each round, a founder control-risk indicator, and an ownership-over-time view.
Set your founders and starting shares.
Add funding rounds with investment and valuation.
Expand the ESOP pool as needed.
See dilution and control risk across rounds.
It's the drop in your ownership percentage when new shares are issued — to investors or into an option pool. You may own a smaller slice of a larger, more valuable company.
Option pools are usually created pre-money, meaning they dilute existing shareholders (founders and prior investors) rather than the new investor in that round.
Pre-money is the company's value before the new investment; post-money = pre-money + investment. The investor's ownership equals their investment ÷ post-money valuation.
Dilution is normal, but watch your combined ownership and control. Falling below 50% means control depends on board and voting terms; below 25% is a significant loss of control.