What it is
In startup usage, an ESOP is the pool of company equity reserved to grant as stock options to employees and advisors, letting them share in the upside they help create. (Note: in the US, 'ESOP' also formally means a distinct retirement-plan structure, startups usually mean an option pool.)
Facts
- Startup option pools are typically 10-20% of fully-diluted shares.
- Options have a strike price set by the 409A valuation and usually 4-year vesting with a 1-year cliff.
- In a priced round, the pool is often expanded pre-money, so founders bear the dilution.
- Common option types (US): ISOs (employees, tax-favored) and NSOs (contractors/advisors).
Who it's for
Founders hiring early employees who need equity upside in place of high salaries.
How it helps you
An option pool lets you attract and retain talent you couldn't otherwise afford, aligning employees' rewards with building long-term company value.
Caveats
Watch pre-money pool expansion, it dilutes founders, not new investors. Grant thoughtfully; over-generous early grants leave nothing for later key hires.
Conclusion
An ESOP/option pool is how startups pay in upside instead of cash, size it deliberately and remember the pre-money shuffle dilutes you, not your investors.