Casimir vs PsiQuantum
Casimir vs PsiQuantum, compared side by side on 13 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Casimir is on 37/100 and PsiQuantum on 70/100.
Where each one leads
Casimir
- agent readiness: 55/100 against 46/100
PsiQuantum
- our overall score: 70/100 against 37/100
- domain rating: 63/100 against 0/100
- funding raised: $3.6B against $3.5M
At a glance
| Measure | Casimir | PsiQuantum |
|---|---|---|
| What it is | Developing the world's first quantum energy chip. | Building a fault-tolerant quantum computer using photonics and silicon manufacturing. |
| Category | Quantum Computing, Energy, Deep Tech, Energy & Climate Tech | Quantum Computing, AI Chip, AI Hardware, Semiconductor |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 2021 | 2017 |
| Headquarters | Houston, USA | Palo Alto, United States |
| Status | Inactive | Active |
Size, funding and growth
| Measure | Casimir | PsiQuantum |
|---|---|---|
| Employees | Not published | 632 |
| Total funding | $3.5M | $3.6B |
| Latest round | Seed | Not published |
| LinkedIn followers | Not published | 81,923 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Casimir | PsiQuantum |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 37/100 | 70/100 |
| Traction | 33/100 | 37/100 |
| Team | 30/100 | Not published |
| Search visibility | 2/100 | 9/100 |
| Quality | 45/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | D (55/100) | D (46/100) |
| Domain ratingLink authority, 0-100 | 0/100 | 63/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Casimir | PsiQuantum |
|---|---|---|
| Hosting | AWS | Not detected |
| CMS | Not detected | Squarespace |
| Frameworks | Not detected | Jquery |
| Analytics | Not detected | Google Analytics 4, Google Tag Manager |
Casimir vs PsiQuantum: common questions
Which is better, Casimir or PsiQuantum?
On our 0-100 score PsiQuantum rates higher (70/100 against 37/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 13 data points above: read the rows that match what you are buying for.
How do Casimir and PsiQuantum compare on the numbers?
Casimir leads on agent readiness (55/100 against 46/100). PsiQuantum leads on our overall score (70/100 against 37/100), domain rating (63/100 against 0/100), funding raised ($3.6B against $3.5M).
Read the full Casimir review and pricing or the PsiQuantum review and pricing. You can also browse other Casimir alternatives we track.

