Specialist in Asia Pacific, Japan, China, India and South East Asia and Global Emerging Market equities.

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Stewart Investors manage investment portfolios on behalf of our clients over the long term and have held shares in some companies for over 20 years. They launched their first investment strategy in 1988.

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Unlisted Infrastructure

Access high quality assets that create value now – and in the future – with one of the longest established direct infrastructure managers globally

By acquiring material stakes in a diverse range of global unlisted infrastructure assets, our team proactively adds strategic and operational value to some of the world’s leading providers of essential services. We have a long-term investment horizon and seek to hold our investments to maturity. As such, all asset management, strategic analyses and investment decisions are examined within the context of long-term sustainability and operational resilience.

“Over the past 25 years we have advocated for long term sustainability – and because we invest for the decades ahead – we can see long term strategies through to maturity.”

Niall Mills

Head of Global Unlisted Infrastructure Investments

Why invest with us?

By capitalising on the growing need for private sector infrastructure funding,this asset offers investors the opportunity to benefit from long-term predictable income with capital appreciation. It can also provide defensive earnings streams, diversification from other asset classes and some inflation protection.

  • As one of the pioneers of infrastructure investment, First Sentier Investors has over 25 years of successful infrastructure investments across sectors and through different economic cycles.

  • We provide rare access to highly-sought after assets the world relies on.

  • We add strategic and operational value through material interests, in many cases 100% ownership, and board representation.

  • The ability to evaluate and manage unlisted infrastructure businesses enables us to apply a much larger set of asset management tools and strategies to pursue sustainable value creation initiatives than a short-term or a conventional private equity style strategy.

  • We have owned some of our assets for over 20 years. As truly long term investors,we put the needs of communities and management of environmental,social and governance considerations first.

Assets that are built to last

Infrastructure assets are owned by investors but belong to the communities they serve. It is critical they are built and managed for the long term.

UK Unlisted Infrastructure Map
Aus Unlisted Infrastructure Map

We search high and low for assets ripe for innovation

From pioneering the world’s first battery operated ferries in Scandinavia to driving sustainability in Australian airports and managing essential drinking and wastewater services in the UK, we have spent the past two decades building a portfolio of assets that benefit the communities they support over the long term.

Case study

A new lease on life for Australia’s scarcest resource

Water is our most precious resource.

Demand for water is only rising. Our farmers, miners and communities need reliable and sustainable water infrastructure. We invested in an Australian water utilities company to establish a platform to invest in water infrastructure ranging from sewerage, irrigation and recycling to innovations in hydro, storage and solar pumping.

Case Study Image
The McLaren Vale wine region is a firm favourite among sommeliers and South Australian locals. Over 200 vineyards and farms are now benefiting from recycled water from our water portfolio company. Currently supporting 45% of growers in the region, we are expanding our network to farms in the surrounding areas.
Closer to Adelaide’s CBD, all 3,000 homes within the Lightsview housing development will be connected to recycled water supplied by a company in our portfolio. It owns the pipes in the streets and provides irrigation water from our pumping and storage facilities. Extending the pipes into the adjacent suburbs is saving local councils around $100,000 on irrigation costs every year.
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Case Study Image
Though a regulated water utility company in Newcastle, we will supply high grade industrial water to Orica through to 2029. This scheme results in over 2000ML/year of drinking water being saved.
Case study

The voyage to zero emissions

In 2019, a company in our portfolio embarked on replacing the thrusters – the ships’ propulsion systems – across all hybrid vessels operating on the Rodby- Puttgarden (RoPu) route. The new thrusters have several benefits, including reduced underwater noise and air emissions.

• 16 old push-thrusters replaced by new pull-thrusters

• 15% fuel and emission reduction

• Significant underwater noise reduction

Reduced underwater noise and lower vibration will improve conditions for the marine life in in the Fehmarn Belt area. Among these are the harbour porpoise, who are particularly sensitive to underwater noise. The more efficient water flow during propulsion also reduces fuel requirements. This is an important element of Scandlines’ journey towards zero emission crossings. The first ferry to have its thrusters replaced was MV Schleswig Holstein in September 2019, with the other three vessels to be fitted with the new thrusters in 2020. The scheme is accompanied by a research project to evaluate the noise reduction levels and to discuss technical best practice with relevant stakeholders.


Most recently, in May 2020, the company took another huge step in achieving zero emissions: the installation of The Norsepower Rotor Sail Solution. This device, which can be installed on new vessels or retrofitted on existing ships, is a modernised version of the Flettner rotor, a spinning cylinder that uses the Magnus effect to harness wind power to thrust a ship. The installation, the fourth successfully completed by Norsepower, is estimated to reduce emissions and save fuel by an estimated 4-5 percent on average without compromising pre-retrofit speed and voyage times


Niall Mills

Managing Partner, Head of Global Infrastructure Investments

Marcus Ayre

Partner & Head of Europe

Nick Grant

Partner, Head of Asset Management, Europe

Gregor Kurth

Partner, Head of Transactions, Europe

Ready to invest?

Contact a member of our Sales Team