PR agency in Melbourne
Third Hemisphere is a PR, communications, and AI visibility agency with a Melbourne office at Level 27, 101 Collins Street. The Melbourne team serves the city's startup, climate, and enterprise community with the same senior counsel, national media relationships, and measurement discipline the agency has built since 2015, across over 150 clients and over 20,000 media placements.
What does Third Hemisphere do in Melbourne?
Third Hemisphere runs media relations, editorial authority programs, investor communications, crisis management, content, digital marketing, and AI visibility work from Melbourne. The office operates as one team with Sydney and Singapore, so a Melbourne client gets local presence backed by the agency's full editorial bench, including former journalists from the Australian Financial Review, Bloomberg, and technology trade publications.
Melbourne briefs tend to come from three places. Startups and scaleups want national coverage for launches and funding rounds. Climate and energy companies want their technology explained credibly to investors, policymakers, and media. And established organisations want executive profiles built in the mastheads their customers and boards read, with The Age and the Australian Financial Review at the front of the list.
The Melbourne team also delivers The Fourth Hemisphere: Marketing for AI. Buyers in every category now ask AI engines who to shortlist, and the answer is composed from published sources. We measure what the engines say about you, then build the earned media and structured content program that improves it.
Why does a Melbourne office matter for startups and climate companies?
Melbourne carries one of the country's largest startup communities, a deep bench of climate and clean energy ventures, and the corporate headquarters that anchor Collins Street. The Age gives the city its own masthead with national reach through its shared newsroom with The Sydney Morning Herald, and Melbourne stories with genuine substance travel quickly into the national business press.
Our work for climate and deep tech clients shows how that plays out. For HB11 Energy we translated laser fusion research into stories that earned 192 media features with a potential readership of 1.74 billion. For Cicada Innovations, the deep tech incubator, we built an editorial presence that positioned it as a go-to voice on innovation policy. The same discipline applies to a Melbourne climate venture explaining its technology to investors: the story has to be accurate enough for a scientist and clear enough for a masthead.
Melbourne's startup community also feeds the national funding-round news cycle. We pitch those stories to the journalists who own the beat at the AFR, Capital Brief, and Startup Daily, and we time them against the market's calendar rather than our own.
Melbourne is also home to significant health, life sciences, and professional services sectors, and the team runs the same national playbook for those clients: research the buyers, build the narrative, and place it with the journalists who already cover the category. Whether the brief is a climate technology story, a fintech funding round, or a professional services partner profile, the approach stays the same: earn coverage that a sceptical buyer, a journalist, or an AI engine would trust.
How does Third Hemisphere improve what AI engines say about a Melbourne company?
Buyers, investors, and journalists now ask ChatGPT, Claude, Gemini, Copilot, and Perplexity about a company before they form their own view, and the engines answer from the published record. Our Fourth Hemisphere practice measures that record with the PACT diagnostic: 50 real buyer questions asked across the five engines, with every answer scored for Presence, Authority, Consensus, and Truth. You see where you appear, who is named instead of you, and which sources the engines relied on.
The Melbourne team then changes those sources. Earned media in the mastheads the engines cite, structured content they can retrieve, and consistent entity data across every third-party record combine into one program, and quarterly re-audits show the answers moving question by question. Our work for Fremantle Seaweed and HB11 Energy shows the method in practice on climate and deep tech stories, and each of those case studies is published in full on this site.
The diagnostic runs before we meet and costs you nothing. Book a discovery call, and the Melbourne team will present what the engines currently say about you on the call itself.
How does an engagement with the Melbourne team work?
Every engagement starts with a conversation and a written scope. You will know the target media, the deliverables, the fee, and the measurement plan before any work begins.
- Discovery call A 30 minute call covers your announcement pipeline, buying audience, competitors, and budget. If AI visibility is part of the brief, we run a PACT audit before the call and present it there.
- Scoped proposal We come back within a week with a scope, a target media list, a measurement plan, and a fee.
- Messaging and targets The first month sets the key messages, the spokespeople, and the named media targets, so every later pitch draws on one agreed narrative.
- Monthly delivery Announcements, pitching, editorial placements, and executive profiling run to an agreed calendar, with monthly reports tracking placements, reach, sentiment, and share of voice.
- Quarterly review Each quarter we read the program against the objectives set at the start, and re-audit AI visibility where the engagement includes it.
Which media does Third Hemisphere target from Melbourne?
We build every target list from your buyers backwards, and we agree it with you before pitching starts. A Melbourne program usually pairs The Age with the national business mastheads, because a Melbourne story needs both its home masthead and the titles investors read, then adds the startup and sector trades that reach your operators.
For climate and energy clients, the list extends to the specialist titles covering the transition, and to the policy desks where regulation shapes the market. For startups, it concentrates on the funding and technology reporters who set the national conversation.
- The Age Melbourne's masthead, with national reach through its shared newsroom with The Sydney Morning Herald. The first target for stories with Melbourne roots.
- The Australian Financial Review The masthead investors and boards read first, and the one AI engines cite most often for Australian business questions.
- The Australian National business and technology coverage with reach into policy and enterprise buyers.
- The Sydney Morning Herald Reached alongside The Age for national metro coverage.
- Capital Brief The subscription briefing read by founders, investors, and operators across Australian tech and capital markets.
- Startup Daily The startup community's trade title, for funding rounds, launches, and founder profiles.
- Trade and specialist media Climate, energy, technology, and sector trades chosen for your category, plus the newswires and international bureaux where a story warrants them.
Every service, delivered from Melbourne
The Melbourne office delivers all eight of the agency's service pillars, from media coverage and editorial authority through to crisis management, investor relations, and The Fourth Hemisphere: Marketing for AI. Each links below to its full service page, with method, deliverables, and pricing approach.
- The Fourth Hemisphere: Marketing for AI Your buyers ask AI before they ask you. We shape what it says.
- Media Coverage & PR 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 Advisory Strategic investor communications that build confidence and attract capital
- Generative Engine Optimisation (GEO) Earn the citations that decide what AI engines say about you
Work the Australian team has delivered
Engagements delivered by the agency's Australian team, each with the full case study behind the link.
- Cicada Innovations Editorial authority for Australia's deep tech incubator, positioning it as a go-to voice on innovation policy.
- DigitalX Positioning an ASX-listed digital asset manager as a credible institutional voice, with regular Bloomberg commentary.
- HB11 Energy Deep tech storytelling for laser fusion energy: 192 media features with a potential readership of 1.74 billion.
Where is Third Hemisphere's Melbourne office?
Level 27, 101 Collins Street, Melbourne VIC 3000, at the top end of the CBD. The agency also has offices in Sydney and Singapore, and the three work as one team, so a Melbourne engagement can draw on all of them.
What does a PR agency in Melbourne cost?
Retainers are scoped to your announcement pipeline, target media, and objectives rather than quoted from a rate card. One-off projects, audits, and campaigns are scoped individually. Book a discovery call, tell us what you need to achieve, and we will come back within a week with a scope and a fee.
Which industries does the Melbourne team work with most?
Sustainability and climate, technology and deep tech, health and life sciences, fintech and financial services, and professional services. Melbourne's startup and climate community means launches, funding rounds, and energy transition stories are a regular part of the work.
Can Third Hemisphere get coverage in The Age?
The Age is a standing target for Melbourne clients, and our team pitches it alongside The Sydney Morning Herald, the Australian Financial Review, and The Australian. No ethical agency guarantees a specific placement, because editorial decisions sit with journalists. What we bring is the story judgement and the relationships that earn a fair hearing.
Does the Melbourne team handle AI visibility and GEO work?
Yes. The Fourth Hemisphere: Marketing for AI and the generative engine optimisation service are delivered for Melbourne clients by the same national team. We audit what ChatGPT, Claude, Gemini, Copilot, and Perplexity say about you, score it with our PACT methodology, and build the program that improves the answer.
Can the Melbourne team run a national or international campaign?
Yes. Melbourne, Sydney, and Singapore operate as one team, so a campaign can run across Australian metro and national media, into South East Asia through the Singapore hub, and into international outlets where the story supports it, under one narrative and one measurement framework.