We are the Agency of Change. We help impact-driven organisations build authority, shape narratives, and grow across APAC.
Seven Core Capabilities, Hundreds of Possibilities
These seven pillars anchor our work, but our capabilities extend far beyond. We are a full-spectrum communications partner.
The Fourth Hemisphere: Marketing for AI
Your buyers ask AI before they ask you. We shape what it says.
ChatGPT, Claude, Gemini, Copilot, and Perplexity now sit between your company and the people deciding whether to buy from it, invest in it, or cover it. The Fourth Hemisphere: Marketing for AI is Third Hemisphere's practice for that layer. Your existing marketing strategy is our starting input. We assess every area of it for AI visibility, measure how the five major engines represent your brand, and then direct the work across your in-house team and the agencies you already retain.
- Your marketing strategy assessed area by area for AI optimisation
- The Fourth Hemisphere Audit: 50 buyer questions across five AI engines
- PACT scoring across Presence, Authority, Consensus, and Truth
- Media Coverage Get your story in front of the audiences that matter most
- Thought Leadership Position your leaders as the go-to voices in your industry
- Crisis Management Protect your reputation in the hours that decide the outcome
- Digital Marketing Amplify your reach and drive measurable growth online
- Content Marketing Create content that attracts, engages, and converts your ideal audience
- Investor Relations Strategic investor communications that build confidence and attract capital
Third Hemisphere in Singapore
Our Singapore hub covers Singapore and South East Asia, led by Managing Director Natalie Chua, formerly Managing Director at Redhill. Singapore media relations, multi-market campaigns across the region, and integrated programmes with our Australian team.
The Fourth Hemisphere: Marketing for AI
Your buyers ask AI before they ask you. We take your marketing strategy as the input, rate every area of it for AI visibility, and sit as the strategy layer across your team and the agencies you already retain.
- 150+ Clients Served
- 20,000+ Media Placements
- 64+ Years Experience
- 3 Offices in APAC