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Enthalpy has been working in Australia for more than 25 years helping clients in the Resources, Energy, and Infrastructure sectors to select the right investment project and to ensure the project is then executed right.

Over the 25 years, Enthalpy has worked on more than 600 projects from multi-million to multi-billion dollar projects with blue chip, government, and emerging clients.  Our clients have project portfolios from a single small project to portfolios worth tens of billions of dollars.

See below for Australian Projects, Clients, Associations, and News.

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Global Head Quarters: Brisbane, Queensland, Australia

Servicing: All States in Australia as well as North America, South America and all other geographic locations


Paul Harper
Paul Harper 
Chief Executive Officer
based: Melbourne
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Gavin Nunes
Gavin Nunes 
Principal Consultant
based: Perth
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Australian Associations & Societies:

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AusIMM Award to Enthalpy’s Neil Cusworth


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AusIMM Cost Estimation Handbook includes chapters from Enthalpy’s founder, Neil Cusworth.

The Australasian Institute of Mining and Metallurgy (AusIMM):

Enthalpy’s association with AusIMM spans more than 30 years. Enthalpy’s CEO, John Buffington, is an AusIMM Chartered Professional and has been a member for more than 30 years.

Enthalpy’s founder, Neil Cusworth, is a Fellow of AusIMM and the recipient of the 2013 AUSIMM Mineral Industry Technique Award in recognition of his contribution in developing innovative, cost saving and effective techniques in the minerals project sector. Neil was also on the Project Steering Committee of AusIMM’s Cost Estimation Handbook, initially published in 1993 and revised in 2012. For the Handbook Neil also contributed a number of Enthalpy’s proprietary procedures for adaption and the benefit of the industry.


About The Australasian Institute of Mining and Metallurgy (AusIMM):

The Australasian Institute of Mining and Metallurgy (The AusIMM) was founded in 1893 and provides services to professionals engaged in all facets of the global minerals sector. With a focus on providing leadership and opportunities to minerals industry professionals, The AusIMM delivers an ongoing program of professional development services to ensure our members are supported throughout their careers, enabling them to provide high-quality professional input to industry and the community.

The AusIMM represents more than 12,500 members drawn from all sections of the industry and supported by a network of Branches and Societies in Australasia and internationally.

Visit AusIMM Website


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Australian Cost Engineering Society (ACES):

Enthalpy has had a long association with the Australian Cost Engineering Society, including many years of sponsorship of monthly meetings, which were previously held at Enthalpy’s old offices in Paddington, Brisbane.


About Australian Cost Engineering Society (ACES):

The Australian Cost engineering Society (ACES) was formed in 1996 to provide opportunities for the exchange of information on the development of total cost management technologies in Australia and to encourage increased training and recognition for practitioners. The ACES is a technical society of Engineers Australia and a section of the Association for the Advancement of Cost Engineering International (AACEI). The ACES is also a member of the International Cost Engineering Council (ICEC).

Visit the Australian Cost Engineering Society (ACES) Website


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Australian Institute of Project Management (AIPM):

Enthalpy has had a long association with the Australian Institute of Project Management (AIPM).


About Australian Institute of Project Management (AIPM):

The Australian Institute of Project Management (AIPM) is the premier body for project management in Australia. It is the longest serving specialist project management body in Australia. Formed in 1976 as the Project Managers’ Forum, the AIPM has been instrumental in advancing the profession of project management in Australia over the past 34 years. With over 10,000 members, it is also the largest and only National membership organisation for Project Management in Australia.

Visit the Australian Institute of Project Management (AIPM) Website


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Queensland Resource Council (QRC):

Enthalpy has been a Service Member of the Queensland Resource Council (QRC) for more than 2 years and has worked with many of the Council’s members either helping to select the right project or executing the project right.


About Queensland Resource Council (QRC):

The Queensland Resources Council is a not-for-profit peak industry association representing the commercial developers of Queensland’s minerals and energy resources.

The Queensland Resources Council was formed in November 2003, succeeding the Queensland Mining Council in recognition of the organisation’s increasingly diversified membership base and vision for the future.

Today, QRC represents explorers, miners, mineral processors, contractors, oil and gas producers and electricity generators.

Visit QRC Website


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