Fundraising Fox

Big Sur Ventures

Venture capital

Madrid · Pre-Seed–Series A · 13 people tracked

Fox Verdict
Sign up to see your fit

Investment thesis

Big Sur Ventures invests at early stages, from pre-seed through Series A with a focus on seed, in technology companies that can become global leaders. It pursues two themes: 'Power of the Internet' (software, internet and IT-enabled products and services) and Deep Tech (quantum computing, artificial intelligence, materials, photonics, microelectronics and nanotechnology) aimed at solving global challenges in energy, decarbonization, demographics and mobility. The firm seeks exceptional, disruptive projects capable of reshaping market structure and offers portfolio companies hands-on operational advice, transaction experience, capital, networks and a global perspective, drawing on more than 50 years of combined experience as serial entrepreneurs.

Source: firm website, verified Aug 3, 2026.

Stage
Pre-Seed–Series A
Check
$100K – $1M
HQ
Madrid, ES
Leads rounds
Leads
Instruments
Equity
Founded
2012
Tracked investments
2

Team · 13 people

from the firm's website & public directories
Eduardo Montes· Board Member

Investments · 2 tracked

founders shown can be your intro path
Área de Inversoresfirebaseapp.com
Canal Éticoappcore.es

Frequently asked questions

What stage does Big Sur Ventures invest at?
Big Sur Ventures invests at the Pre-Seed, Seed, Series A stages.
What is Big Sur Ventures's typical check size?
Big Sur Ventures typically writes checks of $100K – $1M.
What sectors does Big Sur Ventures focus on?
Big Sur Ventures focuses on AI & Machine Learning, Cleantech, Climate Tech, Cloud Computing, Deep Tech, Energy, Mobility & Transportation, New Materials, Quantum Computing, SaaS, Semiconductors.
Where is Big Sur Ventures located?
Big Sur Ventures is headquartered in Madrid, ES.
Does Big Sur Ventures lead rounds?
Yes, Big Sur Ventures leads investment rounds.

Images

Big Sur Ventures photo

Co-investors · 5

Headline

Headline is a venture capital firm that invests in early-stage consumer internet and mobile companies across global markets.

$661K – $103M
Nauta Capital

Nauta Capital is a venture capital firm investing across Europe from hubs in London and Barcelona.

$1.1M – $5.4M
LifeX Ventures

Life Extension Ventures (LifeX Ventures) is a venture capital firm founded by scientists-turned-entrepreneurs, backing founders across health, biotech and technology sectors.

Fuel Ventures

Fuel Ventures is an investor founded by entrepreneur Mark Pearson that backs fast-growing technology companies, drawing on its team's operational and founding experience to support portfolio companies. It also runs a VCT listed on the London Stock Exchange.

$317.5K – $9.5M
JME Ventures

JME Ventures is a Spain-focused seed-stage venture capital firm that backs founders building world-class solutions, having invested in over 70 startups since 2012.

$108K – $3.3M

Firms observed investing alongside Big Sur Ventures, from public investor directories. Shared companies are the overlap with Big Sur Ventures's recorded portfolio.

Similar investors

Featured in lists