Javier Santiso
Deal Originator and Investor at Submer
Madrid, Spain
Javier Santiso, Deal Originator and Investor at Submer is an active investor based in Madrid, Spain. This profile covers what Javier Santiso backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCFounderInvestor
- Stages
- Seed
- Invests in
- FintechClimate & EnergyHardware & Deep Tech
- Location
- Madrid, Spain
- Typical check
- $250K
- Past investments
- 13
Notable investments
bolttech
Clarity AI
Lazard
Kovrr
Twinco Capital
KlarnaOECDFnac Darty
Synthesized
BBVA
PfizerHow to reach Javier Santiso
Angels and operators like Javier Santiso reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
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About this profile
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Cite this page
Round Funded. "Javier Santiso." Round Funded investor database, updated October 19, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/javier-santiso
Frequently Asked Questions
What does Javier Santiso invest in?
Javier Santiso invests in Fintech, Climate & Energy and Hardware & Deep Tech, typically at Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Javier Santiso invest at?
Javier Santiso typically invests at Seed. Lead with traction that fits the stage when you reach out.
What is Javier Santiso's typical check size?
Javier Santiso typically writes checks around $250K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.