Arq vs QuantumDiamonds
Arq vs QuantumDiamonds, compared side by side on 18 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: Arq is on 43/100 and QuantumDiamonds on 60/100.
Where each one leads
Arq
- agent readiness: 29/100 against 21/100
QuantumDiamonds
- our overall score: 60/100 against 43/100
- domain rating: 31/100 against 6/100
- headcount: 61 against 9
- funding raised: $106M against $1.4M
- LinkedIn following: 10,711 against 946
At a glance
| Measure | Arq | QuantumDiamonds |
|---|---|---|
| What it is | UK quantum technology startup developing networking hardware for the quantum internet. | Developing advanced quantum sensing solutions for semiconductor inspection. |
| Category | Quantum Technology, Telecommunications, Networking, Hardware | Semiconductors, Quantum Technology, Industrial Technology, Hardware |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 2025 | 2020 |
| Headquarters | Barcelona, United Kingdom | Berlin, Germany |
| Status | Active | Active |
Size, funding and growth
| Measure | Arq | QuantumDiamonds |
|---|---|---|
| Employees | 9 | 61 |
| Total funding | $1.4M | $106M |
| Latest round | Pre-Seed | equity funding |
| Valuation | Not published | $1.1B |
| LinkedIn followers | 946 | 10,711 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Arq | QuantumDiamonds |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 43/100 | 60/100 |
| Traction | 41/100 | 58/100 |
| Team | 30/100 | 70/100 |
| Search visibility | 37/100 | 31/100 |
| Quality | 48/100 | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (29/100) | F (21/100) |
| Domain ratingLink authority, 0-100 | 6/100 | 31/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Arq | QuantumDiamonds |
|---|---|---|
| CDN | Not detected | Cloudflare |
| CMS | Not detected | Webflow |
| Analytics | Not detected | Google Analytics 4, Google Tag Manager, Linkedin Insight |
What users say
| Measure | Arq | QuantumDiamonds |
|---|---|---|
| Reddit sentimentThreads we track | Not published | 5 positive, 0 negative across 5 threads |
“QuantumDiamonds Secures €76 Million EU Funding for Quantum Sensor-Based Semiconductor Metrology. QuantumDiamonds secures €76M EU grant to establish Europe's first quantum sensor-based semiconductor metrology facility in Munich, advancing hi”r/informaq
Arq vs QuantumDiamonds: common questions
Which is better, Arq or QuantumDiamonds?
On our 0-100 score QuantumDiamonds rates higher (60/100 against 43/100). 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 18 data points above: read the rows that match what you are buying for.
How do Arq and QuantumDiamonds compare on the numbers?
Arq leads on agent readiness (29/100 against 21/100). QuantumDiamonds leads on our overall score (60/100 against 43/100), domain rating (31/100 against 6/100), headcount (61 against 9), funding raised ($106M against $1.4M), LinkedIn following (10,711 against 946).
What do real users say about Arq and QuantumDiamonds?
QuantumDiamonds: 5 positive and 0 negative mentions across 5 Reddit threads we track, mostly in r/informaq.
Read the full Arq review and pricing or the QuantumDiamonds review and pricing. You can also browse other Arq alternatives we track.