Third Hemisphere is a specialist climate, tech, and finance PR and marketing agency for innovators and leaders who are breaking new ground, and changing the world for the better.


We help our clients lead the conversation to create impact and become category leaders, through strategic and integrated communications across tier-1 news media, social, and digital channels. This drives commercial outcomes with their investors, customers, partners, talent, and governments.


Our experience and influence is broad and deep across investment and capital markets, sustainability and ESG, deep tech, fintech, and the climate transition. Our team is composed of tier-1 media writers, technical and science writers, venture investors, business builders, former journalists, TV producers, and marketing experts.


We invest in our clients and build sustainable value from Seed to IPO and beyond.

Third Hemisphere

Third Hemisphere's headquarters in Sydney, Australia

Melbourne office primarily focuses on client relations and strategic account management to drive business growth.

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