Big Sur is a Madrid-based venture capital firm investing in early-stage technology companies in Spain across Internet, Deep Tech and software-led sectors, with portfolio signals in hardware, industrial technology, AI, semiconductors, cybersecurity, logistics, mobility and FinTech. It backs pre-seed through Series A companies, typically investing €100k to €1M, takes an active high-conviction approach, and can lead investments. Portfolio companies include Paack, Smart Protection, Trucksters, Frenetic and Floatech.