Founders Agreement vs Shareholder Agreement
Founders Agreement vs Shareholder Agreement — startup governance documents compared
Overview
Founders Agreement is signed at company inception between co-founders to define roles, equity splits, vesting, and dispute resolution. Shareholder Agreement is a more comprehensive document between all shareholders (including investors) that governs the company's governance post-funding.
Head-to-Head Comparison
| Factor | Founders Agreement | Shareholder Agreement | Winner |
|---|---|---|---|
| When Signed | At or before company incorporation | At or after investment/funding round | Tie |
| Parties | Co-founders only | All shareholders (founders + investors) | Tie |
| Key Provisions | Equity split, vesting, roles, IP assignment, dispute resolution | Anti-dilution, pro-rata rights, information rights, drag-along, tag-along | Tie |
| Investor Specific? | No — pre-investment document | Yes — often driven by investor requirements | Tie |
| Vesting Schedule | Core feature — 4-year cliff vesting standard | May reference vesting schedules already set | A wins |
| IP Assignment | Critical — all founder IP assigned to company | Usually covered by the time SHA is signed | A wins |
Data updated for FY 2025–26. Regulations may change — consult a professional before deciding.
Which Should You Choose?
Choose Founders Agreement if…
Sign a Founders Agreement at incorporation — it protects against co-founder disputes around equity, roles, and what happens if someone leaves.
Get Founders AgreementChoose Shareholder Agreement if…
Sign a Shareholder Agreement when you raise your first institutional funding — investors will insist on it, and it governs rights, anti-dilution, exit rights, and drag-along provisions.
Get Shareholder AgreementStill not sure which to choose?
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Talk to an Expert — FreeFrequently Asked Questions
Common questions about Founders Agreement vs Shareholder Agreement
Founder vesting means founders earn their equity over time (typically 4 years with 1-year cliff). If a founder leaves in year 1, they get 0% (cliff not met). This prevents a co-founder from walking away with 50% equity after 6 months. Vesting protects remaining founders and is expected by investors.
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