About

Rayn Ong is a prominent figure in the Australian startup ecosystem, renowned for his extensive experience as an angel investor and venture capital partner. Since beginning his investment journey in 2014, he has made over 100 investments in early-stage technology startups, including notable companies such as Instaclustr, Propeller Aero, HappyCo, Morse Micro, and Eucalyptus, each achieving valuations exceeding $100 million.

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Day One® exists to help founders and startup operators make better business decisions more often

Subscribe for helpful content from other successful founders, operators and investors

Join 755 other founders & investors receiving our emails. They're cool, are you? :)

* Regrettably, mel@canva.com is not on our list… yet.

Day One® is a registered trademark of W2D1 Media Pty Ltd. All rights reserved. © 2026 W2D1 Media Pty Ltd.