We know that water quality is important to all New Zealanders.

At Marshall Projects we build trusted partnerships with our clients to ensure better water quality for future generations.

Marshall Projects wins coveted national and international innovation awards

Marshall Projects designs and constructs water and wastewater treatment plants.


The Marshall Projects team is passionate about water and delivering a personalised service on every project. Our highly experienced team ensure consistently high standards – this is our point of difference. Our customers trust us to design and construct projects that not only meet their requirements but exceed their expectations

We undertake projects in both water and wastewater using appropriate technology.  In the water supply sector, we predominantly install microfiltration plants from our process supplier partner – Pall.  For wastewater treatment, we offer our exclusive Bio-Shell® bioreactors  technology for ammonia removal.  This is an innovative means of applying robust nitrification technology as a low cost solution using existing pond infrastructure.

About Us

Learn about how we have grown, and meet our experienced team.

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Marshall Projects wins national and international innovation awards

Marshall Projects  has won the “Excellence in Project Innovation” prize at the coveted 2021 IPWEA NZ Asset Management Excellence Awards, and then on the international stage at the 2022 IPWEA Australasia Excellence Awards, for its work on the Paihia WWTP upgrade.


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Tom Marshall

Phone  : +64 21 551 938

Donovan Harvey

Phone  : +64 21 957 993

Tony Foskett

Phone  : +64 21 263 0115

Andrew Robertson

Phone  : +64 27 518 0565



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Health and Safety

Marshall Projects safety system is structured to support a “Zero Harm” objective during all its commercial activities.

As an organisation Marshall Projects is committed to take all practical steps to avoid harm to our employees, subcontractors, site visitors and the general public. We aim to accomplish this by complying with all relevant legislation and best practice guidelines, applying a pro-active approach to site safety management and promoting the involvement and participation of all stakeholders.

Marshall Projects ensures that all personnel are adequately trained, qualified and supervised in relation to the work they will perform. This is achieved via an in-house training program and a formal subcontractor prequalification process. Marshall Projects currently has Sitewise Green status, is a member of Site Safe and is a member of the Common Permit to Work committee.