Marketing & AdvertisingThird Hemisphere – Sydney PR & Marketing Agency

Third Hemisphere is a full-service strategic communications, public relations, and media agency based in Australia. We specialise in crafting impactful campaigns that help businesses gain visibility, build authority, and drive meaningful engagement across various industries — including technology, finance, and sustainability.

Our core services include public relations, media outreach, brand strategy, content creation, thought leadership, and crisis communications. We also offer digital marketing support, including social media strategy, copywriting, and stakeholder engagement.

With a team of experienced professionals, we work closely with clients to understand their goals and deliver tailored solutions that resonate with their target audience. Whether you’re a startup looking to make your mark, or an established enterprise aiming to refresh your brand presence, Third Hemisphere is your partner in growth and reputation building.

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About Us

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Australia Online Advertising, established in 2006, is a pioneer in online business directories. Our platform is crafted with the primary aim of accelerating business growth and enhancing visibility. With us, businesses can effectively showcase their products and services to a wider audience.

Australia Online Advertising is a subsidiary of Q Interactive Media Pty Ltd.

Contact Us

330 Wattle St, Ultimo NSW 2007

©2025 Australia Online Advertising ABN: 59 660 628 320 | Built By Rotapix | A Subsidiary of Q Interactive Media Pty Ltd.

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