Startup · Italy
Rotonium
HQ Padova, ItalyFounded 20221-10 employeesUpdated
Photonic quantum computing hardware.
Funding2 rounds · ~$1.1M
- Equity raised
- ~$1.1M
- Debt, secondaries & grants
- Undisclosed
- Latest
- UndisclosedGrant · Jan 29, 2026
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Jan 29, 2026 | Grant | Undisclosed | — | — | — | Reported |
| Jul 31, 2024 | Seed | ~$1.1M | — | — | — | Reported |
- GrantUndisclosedJan 29, 2026
- Seed~$1.1MJul 31, 2024
Raised counts equity rounds; debt, secondary sales and grants are totaled separately. Amounts in other currencies are converted at the announcement month's average rate. A ~ marks an estimated or converted amount.
People2
| Person | Role |
|---|---|
| Fabrizio Tamburini | Founder |
| Roberto Siagri | Founder |
Company Metrics
Employee-profile counts reflect LinkedIn profiles associated with the company, not verified headcount. One observation establishes a baseline; it does not establish growth.
Sources6
Profile3
- 1Government recordNATO DIANA | Official Website
NATO DIANA · Supports Organization
“OAM tunnel through jammed battlefields”
- 2
Rotonium · Supports Organization · name
“Rotonium | Photonic Edge Quantum Computers”
- 3CompanyAbout us | Rotonium
rotonium.com · Supports Organization · kind
“Rotonium is a deeptech company, founded in 2022”
Funding1
- 4CompanyRotonium | LinkedIn
LinkedIn · Supports Funding round, Organization · ownership
“funding round: Grant, 2026-01-29, lead: NATO DIANA”
People1
- 5DatabaseRotonium — headquarters location
Crunchbase via Bright Data · Supports Organization · headquarters, Organization · num employees, Role · founders
“{"country_code": "Italy", "location": [{"name": "Padova", "permalink": "padova-veneto"}, {"name": "Veneto", "permalink": "veneto-italy"}, {"name": "Italy", "permalink": "italy"}, {"name": "Europe", "permalink": "europe"}]}”
Other1
- 6
LinkedIn via Bright Data · Supports Organization · founded, Organization · logo, Organization · url, Organization metric · employees in linkedin, Organization metric · followers
“{"founded": 2022}”
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