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Fundraising glossary: the terms investors use, in plain English

Fifty-six terms from the first SAFE to the Series A documents. Each one has a one-line definition, a short explanation of why it matters, and the free tool where you can see it in numbers. Search or filter by topic.

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Valuation & cap table

409A valuation

An independent appraisal of common stock used to set option strike prices in the US.

Terms & rights

Acceleration

Faster vesting on an exit. Single trigger needs only a sale; double trigger needs a sale plus termination.

Process & people

Accelerator

A fixed-term program that gives a cohort of startups money, mentoring and a demo day, usually for equity.

Instruments

Advance subscription agreement

The UK equivalent of a SAFE, with a long-stop date for conversion.

Process & people

Angel investor

An individual who invests their own money in early-stage companies.

Terms & rights

Anti-dilution protection

An adjustment that gives investors more shares if a later round is priced lower.

Terms & rights

Board seat

A position on the board of directors, which hires and fires the CEO and approves major decisions.

Valuation & cap table

Bridge round

A small raise, usually from existing investors, to reach the next milestone or round.

Metrics

Burn rate

The net cash the company loses each month.

Metrics

CAC

Customer acquisition cost: sales and marketing spend divided by new customers won.

Valuation & cap table

Cap table

The table of who owns what: shares, options, SAFEs and their percentages.

Metrics

Churn

The share of customers or revenue lost in a period.

Terms & rights

Cliff

The period, usually one year, before any shares vest.

Instruments

Convertible note

A loan that converts into shares at the next round, usually with interest, a cap and a maturity date.

Process & people

Data room

A shared folder with the documents investors review in diligence.

Process & people

Demo day

The event at the end of an accelerator where startups pitch to investors.

Valuation & cap table

Dilution

The reduction in an existing shareholder’s percentage when new shares are issued.

Instruments

Discount

A percentage reduction on the next round’s price for a SAFE or note investor.

Valuation & cap table

Down round

A round at a lower valuation than the previous one.

Terms & rights

Drag-along

A clause forcing all shareholders to join a sale approved by the required majorities.

Process & people

Due diligence

The investor’s review of the company before closing: legal, financial, technical and commercial.

Terms & rights

Full ratchet

The harshest anti-dilution formula: earlier investors reprice fully to the down-round price.

Valuation & cap table

Fully diluted

Ownership calculated as if every option, warrant and convertible had become shares.

Terms & rights

Information rights

The investor’s right to receive financial statements and other company information.

Process & people

Lead investor

The investor who sets the terms, does the diligence and usually takes the largest share of the round.

Terms & rights

Liquidation preference

The right of preferred shareholders to be paid first when the company is sold or wound up.

Metrics

LTV

Lifetime value: the gross profit a customer generates before churning.

Instruments

MFN clause

Most favoured nation: a SAFE investor can adopt the better terms of any later SAFE.

Metrics

MRR and ARR

Monthly and annual recurring revenue from subscriptions.

Metrics

Net revenue retention

Revenue from last year’s customers today, including expansion and churn, as a percentage.

Terms & rights

No-shop clause

A binding promise not to seek other investors for a period after signing a term sheet.

Valuation & cap table

Option pool

Shares reserved for future employees, usually 8 to 15 percent after a seed round.

Valuation & cap table

Option pool shuffle

Creating or expanding the option pool pre-money so that the valuation is effectively lower.

Terms & rights

Participating preferred

Preferred stock that takes its preference and then also shares in the remaining proceeds.

Metrics

Payback period

Months it takes for a customer’s gross profit to repay the cost of acquiring them.

Instruments

Post-money SAFE

The current YC SAFE, where the investor’s percentage is fixed at amount divided by cap before the priced round.

Valuation & cap table

Post-money valuation

The company’s value immediately after the round: pre-money plus the money raised.

Valuation & cap table

Pre-money valuation

What the company is worth before the new money comes in.

Instruments

Preferred stock

The class of shares investors receive in a priced round, with rights common stock does not have.

Valuation & cap table

Price per share

Pre-money valuation divided by the fully diluted shares before the round.

Instruments

Priced round

An equity round where investors buy shares at a negotiated price per share.

Terms & rights

Pro-rata rights

The right to invest in future rounds to keep the same ownership percentage.

Terms & rights

Protective provisions

Decisions that need the approval of preferred shareholders.

Instruments

Revenue-based financing

Capital repaid as a fixed percentage of monthly revenue until a cap is reached.

Terms & rights

Right of first refusal

The company’s and investors’ right to buy shares a founder wants to sell before anyone else.

Metrics

Runway

How many months the company can operate before cash runs out.

Instruments

SAFE

A Simple Agreement for Future Equity: money now, shares later, at the next priced round.

Terms & rights

Secondary sale

Selling existing shares, often founders’ shares, to investors instead of issuing new ones.

Terms & rights

Side letter

A separate agreement that gives an investor rights beyond the standard document.

Terms & rights

Tag-along

Co-sale rights: if a founder sells shares, investors can sell alongside on the same terms.

Metrics

TAM, SAM and SOM

Total, serviceable and obtainable market: the sizing framework investors expect.

Process & people

Term sheet

A short, mostly non-binding summary of the proposed investment terms.

Instruments

Valuation cap

The maximum valuation at which a SAFE or note converts into shares.

Instruments

Venture debt

A loan to a venture-backed company, usually alongside or after an equity round.

Terms & rights

Vesting

Earning shares over time; unvested shares are forfeited if the holder leaves.

Process & people

Warm introduction

An introduction to an investor by someone they know and trust, usually a founder they backed.

Questions founders ask

Why does every term link to a tool?

Because the fastest way to understand a term is to see what it does to your numbers. Each tool runs in the browser and stores nothing.

Is the glossary US-specific?

Most terms come from US venture practice, which the rest of the world has adopted. Where the UK or EU uses a different instrument, the entry says so.

Can I suggest a term?

Yes. Email the term and where you saw it; we add the ones founders ask about most.

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