Antonia (Tia) Collings is the CEO and Co-Founder of Enaxiom, an Australian climate-tech company building HydroCool, the world's first regenerative cooling system for AI data centres.

Tia studied at the University of Cambridge and built a strong commercial career in the tech industry, including a notable role at PayPal where she led strategic partnerships for the launch of PayPal Here in Australia.

Tia found her co-founder Bijan Rahimi through the Antler residency program, where his patent-pending deep-tech system combined with her commercial vision gave Enaxiom its founding edge.

Enaxiom has raised US$2.7M in total Seed funding backed by Epic Angels, BlackNova, Antler, and Impact Ventures, and was selected for the EnergyLab Climate Solutions Accelerator in 2024.

HydroCool targets the heat rejection layer of data centre cooling using non-potable water sources, with ambitions to recycle 500 million cubic metres of water and abate 500 million kilograms of CO2 emissions annually.