Glossary

The quantum founder's glossary

Every fundraising term a quantum founder runs into, read through the one lens that matters here: what it changes when the company is pre-revenue, years from its market, and funded by equity plus grants. 54 terms, no generic boilerplate.

54 terms

Instruments & cap table

Anti-dilution

A preferred-stock protection that grants extra conversion shares if a later round prices below what the investor paid.

Convertible note

A loan that converts into equity at the next priced round, carrying interest and a maturity date unlike a SAFE.

Discount

A percentage off the next round's share price granted to convertible holders, rewarding risk taken before the round existed.

Down round

A financing priced below the previous round's share price, triggering anti-dilution and a hard reset of the equity story.

Drag-along

A clause letting a defined majority force the remaining shareholders to join an approved sale, so a minority cannot block an exit.

Fully diluted

The share count assuming every option, warrant and convertible becomes shares: the honest denominator for any ownership claim.

Liquidation preference

The investor's right to take their money out first when the company is sold, before common shareholders receive anything.

MFN clause

A clause letting an early convertible investor adopt the better terms of any later convertible issued before conversion.

Option pool (ESOP)

Shares reserved to grant equity to employees, usually created or topped up before a round, at the existing holders' expense.

Pay-to-play

A provision that penalizes investors who do not invest their pro rata in a future round, usually by stripping their preferred rights.

Pre-money vs post-money

Two valuation conventions: post-money is pre-money plus the new round, and investor ownership equals investment over post-money.

Pro rata rights

The right to invest in the next round in proportion to your current stake, so your ownership percentage is not diluted.

ROFR (right of first refusal)

The right to match a third party's offer before shares can be sold to them, controlling who joins the cap table and slowing secondary sales.

SAFE (post-money)

A convertible instrument granting future equity at the next priced round, with ownership fixed as a share of the post-money valuation cap.

Valuation cap

The ceiling valuation at which a SAFE or convertible note converts to equity, fixing the investor's minimum ownership whatever the next round prices.

Warrants

The right to buy shares at a set price for a set period, often attached to venture debt or a bridge as extra upside for the investor or lender.

Round mechanics

Deeptech metrics & diligence

Backlog vs pipeline

Backlog is contracted work not yet delivered; pipeline is unconverted opportunity. Conflating the two overstates how committed revenue really is.

Burn multiple

Net cash burned divided by net new ARR: how many dollars a company burns to add one dollar of recurring revenue. Lower is better.

Freedom to operate

Whether a company can commercialize without infringing others' patents, a sharper risk in quantum given dense portfolios held by large incumbents.

Full-stack vs enabling technology

Whether a company builds the whole quantum system or one enabling layer (control, cryogenics, lasers, software); it decides the business model and moat.

License vs assignment (IP)

Assignment transfers ownership of IP to the company; a license only grants rights to use it. The difference sets what the company truly controls.

Logical qubit

An error-corrected qubit built from many physical qubits, the unit that matters for useful computing and a key roadmap and valuation marker.

LOI (letter of intent)

A mostly non-binding statement that a counterparty intends to buy, partner or invest, signalling interest without committing cash.

NISQ

Noisy Intermediate-Scale Quantum: today's era of mid-size, error-prone machines without full error correction, the commercial context for most claims.

NRE (non-recurring engineering)

One-off engineering paid by a customer to build or adapt something for them: real cash, but not recurring revenue and not a product.

Pre-revenue traction

Evidence of commercial pull before real revenue exists: design partners, paid pilots, LOIs and a credible path to first contracts.

Quantum advantage

The point where a quantum computer solves a useful problem better than any classical machine; the headline claim diligence scrutinizes hardest.

Technical milestone

A defined technical achievement that materially de-risks the technology and re-rates the company, the unit of value creation pre-revenue.

TRL (Technology Readiness Level)

A 1-to-9 scale rating how far a technology stands from proven deployment, born at NASA and now standard in deeptech diligence.

University spin-out & IP ownership

A company built on university research, where who owns or licenses the underlying IP, and on what terms, can make or break the investment.

Non-dilutive & tax credits

Investor ecosystem

For founders

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