What is Third Hemisphere's venture investment arm and why was it launched?

Third Hemisphere, a Sydney-based PR and communications agency, launched a venture investment arm as a natural extension of its 25-year history of building companies, investment firms, nonprofits, and global entrepreneurial ecosystems. The investment arm allows Third Hemisphere to take a more active role in supporting innovative businesses by combining strategic communications expertise with direct capital investment.

What is Fremantle Seaweed and why is it significant?

Fremantle Seaweed is the first company to receive investment from Third Hemisphere's newly launched venture arm, making it a notable milestone in the agency's evolution beyond traditional PR and communications services. The company operates in the seaweed industry, a sector attracting growing interest for its potential environmental, agricultural, and food production applications.

How does investor relations PR support companies in the seaweed and emerging industries sector?

Investor relations PR helps companies in emerging sectors like seaweed communicate their value proposition clearly to potential investors, media, and the broader public, building credibility and trust at a critical stage of growth. Effective investor relations PR combines strategic messaging, media engagement, and stakeholder communication to support capital raising and long-term brand positioning.

Why would a PR agency invest in startups rather than just providing communications services?

PR agencies with deep industry networks and strategic expertise are increasingly well-placed to identify high-potential businesses early, making venture investment a logical complement to their advisory work. By investing directly, agencies like Third Hemisphere can align their interests with clients, offering both capital and the communications support needed to scale successfully.

What role does investor relations PR play when a company announces a new investment or funding round?

When a company announces a new investment or funding round, investor relations PR is essential for crafting the right narrative, reaching relevant media outlets, and ensuring the announcement resonates with investors, customers, and industry stakeholders. A well-executed investor relations PR strategy can significantly amplify the credibility and visibility of a funding announcement, attracting further interest from the market.

How does Third Hemisphere's background in entrepreneurial ecosystems inform its approach to PR and investment?

Third Hemisphere's 25 years of experience building companies, investment firms, and global entrepreneurial ecosystems gives it a distinctive perspective that goes beyond traditional communications consultancy, allowing the agency to understand the real-world challenges founders and investors face. This background informs a more integrated approach to PR and investment, where strategic storytelling, stakeholder engagement, and business growth are treated as interconnected priorities.

Third Hemisphere Expands PR to Singapore & Indonesia Regions

Why We Launched Third Hemisphere’s Venture Investment Arm and Fremantle Seaweed Is Our First Investment

The Natural Progression of a 25 Year Journey

I have spent the past 25 years building companies, investment firms, nonprofits, and global entrepreneurial ecosystems, and launching Third Hemisphere’s venture investment arm is the natural next stage of that work.

My experience working with the G20, the United Nations, and founders across Asia Pacific has shown me that the companies reshaping industries succeed because they combine innovation, execution, influence, and capital at the right time.

Hannah and I have already invested personally in more than 35 companies and three venture funds, so creating this investment arm simply formalises the mission driven approach we have always taken.

This new division allows me to bring decades of entrepreneurial and policy experience directly into the companies we support.

Our goal is to partner with founders in a deeper and more aligned way that strengthens both their commercial momentum and their global impact.

Why Fremantle Seaweed Became Our First Investment

Fremantle Seaweed immediately stood out because it represents the exact kind of science-backed and scalable climate innovation I have seen succeed repeatedly throughout my career.

Their approach to cultivating Asparagopsis seaweed provides a practical pathway to reducing methane emissions from cattle, which is one of the most difficult challenges in global sustainability.

I was deeply impressed by their ability to convert scientific research into practical adoption for farmers anywhere in the world.

Fremantle Seaweed’s scale-up plans include expanding to a 3,000-hectare operation in WA’s North-West Hub, enabling the company to service 1% of the global market, 21% of the Australian market, and all of the WA market.

This scale would enable the abatement of near a million tonnes of greenhouse gas emissions annually, or the equivalent of emissions avoided by operating over 270 wind turbines annually or growing 15 million trees over 10 years.

We became one of the largest investors in their 2.3 million dollar seed round because I want to stand behind founders who deliver tangible and measurable climate outcomes.

A Better Model for Backing Mission Driven Founders

Third Hemisphere has partnered with many of the most ambitious innovators in the region, including Cicada Innovations, OKX, Australian Payments Plus, Morse Micro, AMSL Aero, Australian Ethical, SpeeDx, ARIA Research, Vield, OMG, TP24, Limepay, Volt, Polemos, Invertigrow, and Tessara Technologies.

Working across these companies has shown me that founders do not just need communications support but also strategic partners who understand capital, regulation, policy, storytelling, and commercial execution in one integrated approach.

Our investment arm allows us to offer that combination at a deeper level by aligning financial support with the strategic and reputational guidance we are known for.

We invest selectively in founders whose work sits at the intersection of sustainability, technology, and industry transformation.

When we invest, we do it with a long term mindset that focuses on backing people who have the courage and capability to build meaningful global solutions.

When you find exceptional founders, you support them with everything you can.

Where This Leads Next

Fremantle Seaweed is the first step in a long term ambition to support companies that blend innovation with measurable impact and commercial discipline.

Our aim is not to operate like a traditional VC firm but to expand the way mission driven founders achieve influence, scale, and long term success.

This investment arm represents our commitment to the future we want to help build through the founders we choose to back.

And it’s not just money, because money is a commodity, it’s our experience, the capabilities of our entire team, and a long-term commitment of support.

If you are building something that can materially improve the world, then I would love to hear from you.

Jeremy Liddle
Managing Director, Third Hemisphere