Unlocking the value of consulting

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About

Until now, it’s been difficult to put a number on the value that engineering consultancies deliver to Aotearoa. ACE New Zealand member firms solve complex problems, drive innovation and support the success of public and private sector projects.  

However, much of this value has been recognised anecdotally rather than through robust, independent evidence. 

We’re proud to present this report, commissioned by ACE New Zealand and carried out by the New Zealand Institute of Economic Research (NZIER) which, for the first time, quantifies the value our members deliver to Aotearoa.  

This work puts a number on the expertise, flexibility and independent perspective that consultants bring to every engagement. 

Sitting behind these numbers are evidence-informed insights into how consultants create value, what clients in Aotearoa value most from their engineering consultants, and how clients and consultants can work together to elevate the overall value of consulting investment. 

Key findings

  • Hiring an infrastructure consultant provides strong returns  
    In relation to New Zealand’s total infrastructure spend, for every $1 spent on an infrastructure consultant, the country is $2.10 better off – which means a $3.3 billion net benefit to New Zealand infrastructure per year.
  • Cost savings  
    Clients of ACE member firms save $1.9 billion per year by using an ACE member firm instead of hiring equivalent in-house staff. 
  • ACE member firms produce billions of dollars of value per year  
    $5.4 billion paid to ACE members in 2025 produced $11.4 billion in value – a net benefit to Aotearoa of $5.9 billion in increased GDP.

 

How to use this report

ACE members can use this report as a tool to support conversations with clients about consulting value and spend, and to advocate for fair procurement, value-based pricing and early involvement in project design. It also highlights the importance of investing in talent, knowledge systems and strong client relationships. 

Use these insights to tell your value story – to clients, policymakers and your own teams. Alongside our Engagement principles for consultants and clients, this report challenges consultants and clients to work together to deliver outstanding outcomes for Aotearoa, now and into the future.

Download the summary report

This summary report provides insights into how consultants create value, what clients in Aotearoa value most from their engineering consultants, and how clients and consultants can work together to elevate the overall value of consulting investment. 

Unlocking the value of consulting document cover

Download the full NZIER report

For full details about the research methods, interviews and calculations that were used to in this report, see the full NZIER report on the economic contribution of consulting in Aotearoa 

NZIER report

If you have any questions about this report or would like to share your feedback, please email us at letstalk@acenz.org.nz 

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