Boye Hartmann
Partner at Red Balloon Aps
Brussels, Belgium
Boye Hartmann, Partner at Red Balloon Aps is an active investor based in Brussels, Belgium. This profile covers what Boye Hartmann backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelOperatorFounder
- Stages
- Series A
- Invests in
- SaaS & EnterpriseMarketing & AdTechFintechHR & Future of Work
- Location
- Brussels, Belgium
- Typical check
- $1M
- Past investments
- 15
Notable investments
How to reach Boye Hartmann
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About this profile
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Cite this page
Round Funded. "Boye Hartmann." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/boye-hartmann
Frequently Asked Questions
What does Boye Hartmann invest in?
Boye Hartmann invests in SaaS & Enterprise, Marketing & AdTech, Fintech and HR & Future of Work, typically at Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Boye Hartmann invest at?
Boye Hartmann typically invests at Series A. Lead with traction that fits the stage when you reach out.
What is Boye Hartmann's typical check size?
Boye Hartmann typically writes checks around $1M. 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.