Side-by-side comparison
Improbable vs Arm
Corporate structure, registry, ownership, and key facts compared. Same industry: Technology.
Side-by-side facts
| Field | Improbable | Arm |
|---|---|---|
| Industry | Technology | Technology |
| Headquarters | London, United Kingdom | London, United Kingdom |
| Legal name | Improbable Worlds Ltd. | Arm Holdings plc |
| Founded | 2012 | 1990 |
| Ownership | Private | Subsidiary |
| Listed on | — | NASDAQ · ARM |
| Employees (est.) | 500-1000 | 5000-10000 |
| Revenue (est.) | $50M-$100M | $3B-$5B |
| Jurisdiction | England and Wales | United Kingdom |
| Registry | Companies House | Companies House |
At a glance
Improbable is private while Arm is subsidiary. Both based in London, United Kingdom — direct local peers.
Want to dig deeper?
Read each company's full corporate-structure profile.