Four instruments hiding inside one total · Concentration, and what it is not evidence of · The disclosure quality problem got worse
Four instruments hiding inside one total
PsiQuantum's Series E is priced venture capital. IonQ's public equity offering is cash raised in the capital markets by an already-listed company. Rigetti and D-Wave disclose ATM programmes, which are authorisations to issue shares up to a ceiling rather than a single closing. Infleqtion and Horizon Quantum announce SPAC mergers with no cash value attached at our cutoff. All four appear in the same year table, and only two of them are comparable to each other.
We keep them together because the alternative — quietly dropping the inconvenient rows — would make every regional comparison flatter and less truthful. But we label the instrument on every row and repeat the counting rule in the methodology. A reader who wants a venture-only view should filter on instrument type, not on year.
Concentration, and what it is not evidence of
A small number of very large 2025 rows account for most of that year's disclosed capital. It is tempting to read this as investors converging on a winning architecture. The instrument breakdown argues against that: the largest figures come from companies that already had access to public markets or from one fab-aligned private round, not from a broad repricing of every quantum modality. Meanwhile the same year contains a long tail of Series B rounds at a tenth of the size.
The honest phrasing is that capital became more concentrated in 2025, not that technical consensus formed. We do not have valuation data for most of these rows, so any claim about which company the market considered most promising would go beyond what the ledger supports.
The disclosure quality problem got worse
2025 is also the first year in which automated news monitoring contributes a meaningful share of our rows. Several reports describe the same round with different wording and occasionally different amounts. The publication layer merges those before this page is generated; the raw reports remain in the JSON ledger. Rows that have not yet been checked by an editor carry a visible ⚡ flag and a clickable source URL.
That distinction is not cosmetic. A year table that counted twelve syndicated headlines as twelve financings would overstate both the event count and the total. The de-duplication column explains the merge rule in detail, and the scan log shows what the last automated run actually found.
Every 2025 financing in the current ledger
Computed on this build: 14 published financings dated 2025, 12 with a disclosed cash amount and 2 with none. Disclosed cash across those rows totals about $4.8B. The largest single row is IonQ at $1.0B; 0 rows are classified as policy instruments and 6 as public-market instruments. Programmes and letters of intent contribute zero to this sum.
| Company | Instrument & date | Disclosed amount | Source |
|---|---|---|---|
| Alice & Bob | Series B 2025-01 · Europe |
~$105M | Sifted, TechCrunchhow to verify ↗ |
| D-Wave Quantum | Equity offering 2025-01 · North America |
~$150M | company announcementhow to verify ↗ |
| QuEra Computing | Series B 2025-01 · United States |
~$230M | TechCrunch, The Boston Globehow 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 ↗ |
| SandboxAQ | Late-stage round 2025-04 · United States |
~$450M | TechCrunch, Reutershow 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 ↗ |
| IQM Quantum Computers | Series B 2025-09 · Europe |
~$320M | MIT QIR Insights, Scaling Europe, company announcementhow to verify ↗ |
| PsiQuantum | Series E 2025-09 · United States |
~$1.0B | Reuters, TechCrunch, company announcementhow to verify ↗ |
| Quantinuum | Growth round 2025-09 · United States |
~$600M | Reuters, Bloomberghow to verify ↗ |
| Nu Quantum | Reported raise 2025-12-10 · Europe |
~$60M⚡ unverified | source ↗how to verify ↗ |
| Quantum Art | Series a 2025-12-10 · Middle East |
~$100M⚡ unverified | source ↗how to verify ↗ |
The practical takeaway
The practical lesson for anyone citing 2025: state which instrument you counted. A sentence that says quantum companies raised a certain amount in 2025 is only defensible if it also says whether ATM ceilings and listing proceeds are inside that number.