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May 16, 2025

Oskar Hartmann: The Instagram influencer pooling stakes in top unicorns

Hartmann won big on early investments in Auto1 and Flaschenpost

Freya Pratty

6 min read

Oskar Hartmann describes himself as one of the most successful angel investors on the planet: the 18th most successful, if you’re counting.

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Freya Pratty

Freya Pratty is Sifted's associate editor. She covers UK tech and leads Sifted's investigations. Follow her on X , LinkedIn and Bluesky

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