What is Capitalization Table (Cap Table)?

A capitalization table, or cap table, is the master list of who owns your company. It records every shareholder — founders, investors, employees with options — and exactly how much of the company each one holds.

In the earliest days a cap table can live in a spreadsheet, but it quickly becomes one of the most important documents a company has. Every funding round, option grant, and share transfer is reflected here, showing ownership at any moment in time.

What a cap table tracks

A good cap table shows not just today's ownership but how it changes with each event, so founders and investors can see the effect of new shares before agreeing to them.

• Each shareholder's number of shares and percentage ownership.
• Stock options and the pool reserved for employees.
• How each funding round dilutes existing owners.
• Convertible instruments like SAFEs and notes that turn into shares later.

Why the cap table matters for validation

Keeping a clean cap table from the start prevents painful problems later — messy ownership can scare off serious investors or complicate a sale. For founders, modeling how each potential round affects the cap table reveals the true cost of raising money. Validating an idea cheaply before raising helps protect ownership and keeps the cap table founder-friendly.