Funding is not valuation, and a programme ceiling is neither

A financing announcement usually contains one number. Readers routinely assume it is what the company is worth. In this ledger it is almost always the cash reported as raised, which is a different quantity, and for some public companies it is not even cash — it is the ceiling of an authorised issuance programme.

Data cutoff 2026-11Page generated 2026-11-05

Three different quantities

Cash raised is money that moves to the company in exchange for equity or another instrument. Post-money valuation is the agreed price of the whole company after that round, and requires knowing the ownership percentage sold. A programme ceiling is the maximum a listed company has authorised itself to issue over time, whether or not it issues any of it. Our tables contain the first and, where explicitly labelled, the third. They do not contain the second.

We leave the valuation field empty when no valuation was disclosed rather than back-solving one from the round size and a guessed stake. A few rows carry a valuation figure because a source reported one directly; those are marked as such and never folded into the funding total.

Why this matters for a ranking

Ranking by disclosed cash answers a reproducible question. Ranking by valuation would require private-company marks that are rarely public, change with every round, and are not comparable across jurisdictions. Mixing the two would make the table impossible to audit. It would also systematically favour companies that announce a valuation and penalise ones that do not, which is a disclosure behaviour, not a business outcome.

This is also why we do not print implied multiples, market-cap comparisons or a company is now worth line anywhere on the site. Those claims require data we have chosen not to guess.

Reading a programme ceiling correctly

An at-the-market programme is filed with a maximum aggregate offering price. Actual issuance appears in later filings and may be far smaller. We record the announced ceiling as one row with the instrument named, and do not add later drawdowns as new financings. A reader comparing a listed company on this basis with a private Series B should state that the two numbers have different meanings before drawing a conclusion.

Rows in this ledger that mention a valuation or an authorised programme

14 rows in the current ledger match this column's classification. Each row keeps its source and instrument label.

CompanyInstrument & dateDisclosed amountSource
QuantumCTek STAR Market IPO
2020-07 · China
~$130M SSE STAR Market filings, Chinese mediahow to verify ↗
IonQ SPAC listing
2021-11 · United States
~$650M SEC filings, market coveragehow to verify ↗
Quantinuum Series B
2024-01 · United States
~$300M Reuters, company announcementhow to verify ↗
D-Wave Quantum Equity offering
2025-01 · North America
~$150M company announcementhow to verify ↗
Infleqtion SPAC merger (announced)
2025-02 · United States
Not disclosed company announcement, market coveragehow to verify ↗
Horizon Quantum Computing SPAC merger (announced)
2025-04 · Asia-Pacific
Not disclosed company announcement, market coveragehow to verify ↗
D-Wave Quantum ATM program
2025-06 · North America
~$400M company announcementhow to verify ↗
Rigetti Computing ATM program
2025-06 · United States
~$350M company announcement, market coveragehow to verify ↗
IonQ Public equity offering
2025-07 · United States
~$1.0B SEC filing coverage, Business Wirehow to verify ↗
Quantinuum Growth round
2025-09 · United States
~$600M Reuters, Bloomberghow to verify ↗
Pasqal Spac
2026-03-05 · Europe
Not disclosed⚡ unverified source ↗how to verify ↗
SpinQ Pre-ipo
2026-04-03 · China
~$84M⚡ unverified source ↗how to verify ↗
Photonic Inc. Reported raise
2026-05-12 · North America
~$200M⚡ unverified source ↗how to verify ↗
Quantinuum Ipo
2026-06-03 · United States
~$1.7B⚡ unverified source ↗how to verify ↗

The practical takeaway

The short rule: if a sentence says a quantum company is worth a figure taken from this site, it is wrong. The site publishes disclosed capital, with the instrument attached.

More from the research desk

Global funding ranking ↗Company profiles ↗Methodology ↗Scan log ↗

Compiled by QuantumRoundup Research Desk · Reviewed by the Editorial Desk (per-event verification status is shown on the timeline)

Data cutoff (latest reviewed event): 2026-11 (month precision) · Page generated: 2026-11-05 · Editorial policy · Corrections log · Methodology