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Amadeus Capital Partners is a deep tech venture capital firm backing trailblazers solving hard problems in large markets. Founded in 1997, the firm invests across Intelligence (AI, advanced computing, quantum), Human (health, medicine, wellness), and Planet (sustainability, energy, novel materials, space).
Average disclosed round size is $32.1M (across 108 rounds with reported amounts).
Portfolio
91
Fund Size
—
Top Stage
Series A
Last 12 Mo
6
Team
Craig Marshall
Venture Partner
Kelly Richdale
Venture Partner
Pat Burtis
Partner
Steve Young
Venture Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
153 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| SStateful | Pre-Seed | $4.8M | Mar 2026 |
 Refute | Seed | — | Feb 2026 |
 Fluidic | Series A | $31M | Jan 2026 |
 Nu Quantum | Series A | — | Dec 2025 |
 Sitehop | Seed | — | Oct 2025 |
 enaDyne | Seed | — | Sep 2025 |
 Offset Labs | Pre-Seed | — | Sep 2025 |
 Paragraf | Series C | $55M | Aug 2025 |
| IInephany | Pre-Seed | $2.3M | Apr 2025 |
 Safe Intelligence | Seed | — | Feb 2025 |
 iPronics | Series A | — | Jan 2025 |
 Quibim | Series A | $50M | Jan 2025 |
| Paragraf | Series C | — | Jan 2025 |
| Refute | Pre-Seed | $2.9M | Dec 2024 |
 HyperHeat | Seed | — | Nov 2024 |
 Gemesys | Pre-Seed | — | Nov 2024 |
 Riverlane | Series C | $75M | Aug 2024 |
 Vertus Energy | Seed | — | Jun 2024 |
 PolyAI | Series A | $12M | Jan 2024 |
 Secondmind Ltd | Bridge | $16M | Nov 2023 |
| Nu Quantum | Seed | — | Nov 2023 |
 Sprout.ai | Unknown | $6.8M | Oct 2023 |
 Tenzo | Series A | $5M | May 2023 |
 UniSieve | Seed | $5.5M | Apr 2023 |
 Seldon | Series B | $20M | Mar 2023 |
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Top Co-Investors
Cambridge Enterprise19 shared
Molten Ventures17 shared
Parkwalk Advisors15 shared
Techstars15 shared
Cambridge Innovation Capital14 shared
Passion Capital12 shared
Global Brain Corporation12 shared
Octopus Ventures12 shared
Playfair Capital12 shared
British Business Bank12 shared
BGF9 shared
Foundation Capital8 shared
Robert Bosch Venture Capital8 shared
Plug and Play Tech Center7 shared
AlbionVC7 shared
Balderton Capital6 shared
Sequoia Capital6 shared
APEX Ventures5 shared
Last updated: 7 October 2026