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Kees Koolen

Verified: Jun 2026 (Profile Confirmed)👑 Lead Investor
Amsterdam, Netherlands
in
Check Size Range

Flexible Check Size

Preferred Stages
seedseries-aseries-b

Background & Investment Thesis

Former CEO of Booking.com. Active Dutch angel investor in travel and marketplace.

Focus Industries

travelmarketplaceconsumersaas

Notable Portfolio & Backed Deals

AI Outreach Insight94% Match Score

Active investor in travel, marketplace, consumer, saas. Highly responsive to concise pitches with clear traction metrics.

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Verified Deal Signals Active

Key Deal Terms & Quick Facts

Audited venture due diligence summary for Kees Koolen

Verified Deal Signals
Typical Check Size

$500k – $10M

Direct angel check per syndicate / round
Target Stages
seedseries-aseries-b
Early-stage entry valuation priority
Founder Pitch Contact

Verified (Protected — Unlock)

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Focus Industries & Categories
travelmarketplaceconsumersaas
Notable Backed Deals & StartupsInternal company dossiers
Booking.comGreenwheels

Frequently Asked Questions about Kees Koolen

What is Kees Koolen's typical angel check size?▼

Kees Koolen's investment check size typically ranges around $500k – $10M, participating in early-stage financing rounds alongside leading venture capital funds and angel syndicates.

What stages and sectors does Kees Koolen invest in?▼

Kees Koolen primarily backs early-stage startups across seed, series-a, series-b stages, focusing on travel, marketplace, consumer, saas.

What companies are in Kees Koolen's angel portfolio?▼

Kees Koolen has backed notable companies including Booking.com, Greenwheels.

How can startup founders contact or pitch Kees Koolen?▼

Founders can access verified direct email contact channels, AI-assisted pitch drafting, and syndicate warm intro paths for Kees Koolen through OpenAngels.