Jaime Siles

Active Investor

Venture investor in Madrid

Madrid, Spain

Jaime Siles, Venture investor in Madrid is an active investor based in Madrid, Spain. This profile covers what Jaime Siles backs, at which stage, and how founders can reach out in 2026.

Investor type
VCPEInvestor
Stages
Seed
Invests in
Manufacturing & IndustrialClimate & Energy
Location
Madrid, Spain
Typical check
$250K
Past investments
2

Notable investments

Naturgy Energy Group, S.A.Aqualia

How to reach Jaime Siles

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About this profile

This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.

Cite this page

Round Funded. "Jaime Siles." Round Funded investor database, updated September 9, 2026.

Stable URL, it will not change: https://www.roundfunded.com/en/investor/jaime-siles

Frequently Asked Questions

What does Jaime Siles invest in?

Jaime Siles invests in Manufacturing & Industrial and Climate & Energy, typically at Seed. Match your sector and stage, then reach out with a personalized pitch.

What stage does Jaime Siles invest at?

Jaime Siles typically invests at Seed. Lead with traction that fits the stage when you reach out.

What is Jaime Siles's typical check size?

Jaime Siles 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.

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