Arq vs SparrowQuantum
Arq vs SparrowQuantum, 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 SparrowQuantum on 59/100.
Where each one leads
Arq
Leads on none of the measures we hold for both companies.
SparrowQuantum
- our overall score: 59/100 against 43/100
- agent readiness: 38/100 against 29/100
- domain rating: 40/100 against 6/100
- headcount: 65 against 9
- funding raised: $32.8M against $1.4M
- LinkedIn following: 9,240 against 946
At a glance
| Measure | Arq | SparrowQuantum |
|---|---|---|
| What it is | UK quantum technology startup developing networking hardware for the quantum internet. | Sparrow Quantum develops and commercializes photonic quantum chip technology, delivering single photons on demand for quantum computing and communication. |
| Category | Quantum Technology, Telecommunications, Networking, Hardware | Quantum Computing, Quantum Communication, Photonics, Semiconductors |
| Sells toBusiness model | B2B | B2B |
| Offering | Hardware | Hardware |
| Founded | 2025 | 2015 |
| Headquarters | Barcelona, United Kingdom | Copenhagen, Denmark |
| Status | Active | Active |
Size, funding and growth
| Measure | Arq | SparrowQuantum |
|---|---|---|
| Employees | 9 | 65 |
| Total funding | $1.4M | $32.8M |
| Latest round | Pre-Seed | Series A |
| LinkedIn followers | 946 | 9,240 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Arq | SparrowQuantum |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 43/100 | 59/100 |
| Traction | 41/100 | 56/100 |
| Team | 30/100 | 60/100 |
| Search visibility | 37/100 | 35/100 |
| Quality | 48/100 | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (29/100) | F (38/100) |
| Domain ratingLink authority, 0-100 | 6/100 | 40/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Arq | SparrowQuantum |
|---|---|---|
| CDN | Not detected | Cloudflare |
| CMS | Not detected | Webflow |
| Analytics | Not detected | Google Tag Manager |
| Support stack | Not detected | HubSpot |
Arq vs SparrowQuantum: common questions
Which is better, Arq or SparrowQuantum?
On our 0-100 score SparrowQuantum rates higher (59/100 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 SparrowQuantum compare on the numbers?
SparrowQuantum leads on our overall score (59/100 against 43/100), agent readiness (38/100 against 29/100), domain rating (40/100 against 6/100), headcount (65 against 9), funding raised ($32.8M against $1.4M), LinkedIn following (9,240 against 946).
Read the full Arq review and pricing or the SparrowQuantum review and pricing. You can also browse other Arq alternatives we track.