Big Sur Ventures is a Madrid-based venture capital firm focused on early-stage technology and deep tech investments, primarily in Spain and Europe. Since 2012, the firm partners with world-class founders as a high-conviction investor from pre-seed through Series A.
They made 3 investments in the last 12 months. Average disclosed round size is $25.2M (across 13 rounds with reported amounts).
Portfolio
25
Fund Size
—
Top Stage
Series A
Last 12 Mo
3
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
30 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Axiomatic AI | Seed | $18M | Mar 2026 |
 aXiomatic | Seed | $18M | Mar 2026 |
| TTolemy Bio | Pre-Seed | — | Jan 2026 |
 LuxQuanta | Series A | — | Oct 2025 |
 Nanopower | Growth | — | Jan 2025 |
| LuxQuanta | Series A | — | Jan 2025 |
 Ciudadela | Unknown | — | Jan 2024 |
| CCiudadela | Unknown | — | Jan 2024 |
 Candex | Series B | $45M | Nov 2023 |
 Frenetic | Series A | — | Nov 2023 |
 Paack | Series D | $200M | Jan 2022 |
 Smart Protection | Series B | — | Jan 2020 |
| Smart Protection | Series A | — | Jan 2019 |
 Lingokids | Series A | $6M | Oct 2018 |
| Paack | Series A | $6M | Jun 2018 |
| Lingokids | Seed | $4M | Jun 2017 |
 Rebag | Series B | $15.5M | Jan 2017 |
| Rebag | Series A | $8M | Jan 2016 |
 Supportwave | Seed | $2.2M | — |
 Reveni | Series A | — | — |
 Emblematic | Pre-Seed | $2M | — |
 PandaGO | Pre-Seed | — | — |
 Apeteat | Unknown | — | — |
 Cuyna | Unknown | — | — |
 Homyspace | Unknown | — | — |
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Top Co-Investors
JME Ventures7 shared
Kibo Ventures5 shared
Telefonica5 shared
Athos Capital3 shared
FJ Labs3 shared
Earlybird Venture Capital2 shared
Sabadell Venture Capital2 shared
HV Capital2 shared
Acurio Ventures2 shared
Kleiner Perkins2 shared
Engine Ventures2 shared
Liquid 2 Ventures2 shared
Plug and Play Tech Center2 shared
Passion Capital2 shared
Together Fund2 shared
Shilling Capital Partners2 shared
Nauta Capital2 shared
Corning2 shared
Crosslink Capital2 shared
General Catalyst2 shared
Last updated: 20 October 2026