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Explore: Photonics & Optics · Advanced Materials · Pre-Seed · Seed · Series A

Big Sur Ventures

VC$43.5MCo-investsLeads rounds

Fund Size

$43.5M

Check Size

$0.5M$1.1M

Location

🇪🇸Spain

Activity

Statusactively investing

Investment Thesis

Two core themes: Power of the Internet (software, internet, IT, AI-native software, cybersecurity, B2B) and Deep Tech (Quantum, AI, Materials, Photonics, Microelectronics, Nanotech) addressing global challenges in energy, decarbonization, climate, and mobility.

About Big Sur Ventures

Early-stage venture capital firm founded in 2012, based in Madrid, Spain, leading rounds at Seed and Series A with a hands-on, mission-driven approach integrating ESG criteria.

Sectors

deep techpower of the internetartificial intelligencephotonics & opticsadvanced materials

Stages

pre-seedseedSeries A

Geographic focus

SpainEuropeSouthern Europe

Notable Investments

AAxiomatic AI, Frenetic, Trucksters, Lingokids, Rebag, Paack

Verified 19 July 2026 · Sources: company website, Fusion42 review

Frequently asked questions

What does Big Sur Ventures invest in?
Big Sur Ventures invests in deep tech, power of the internet, artificial intelligence, photonics & optics and advanced materials at the pre-seed, seed and series-a stages.
Which geographies does Big Sur Ventures focus on?
Big Sur Ventures focuses on Spain, Europe and Southern Europe, and is headquartered in Spain.
What is Big Sur Ventures's typical check size?
Big Sur Ventures typically writes checks of $0.5M to $1.1M.