What we do

a logo for sustainable action for a better tomorrow with an infinity symbol .

A solution for every need

Our Sustainability Services & ESG Consulting for New Zealand & Australian Businesses

Planning, implementing or both. Get your sustainability initiatives, energy transition pathways, and carbon saving process innovations off the paper and operational.


Leveraging our broad expertise, we offer premier sustainability services and ESG consulting to New Zealand and Australian clients. Our approach encompasses technical proficiency, precise scope definition, and delivering on expectations within time and budget constraints. We focus on crafting tailored solutions and promoting environmental stewardship through a robust ESG strategy, enhancing process and energy efficiency while minimising risks and instilling confidence in our clients.

DETA Delivers

Our Sustainability Services for NZ & Australia

Energy Management

DETA has one of the largest energy management teams in Australasia, with accredited auditors, process heat and refrigeration specialists, and certified measured verification professionals.

Learn more

Decarbonisation Roadmapping

DETA are experts in developing carbon strategies and medium to long-term roadmaps, often over 10 to 30 years. These road-maps identify the lowest costs of achieving  reductions and operating in a future carbon market.

Learn more

Full Project Delivery Service

Whether you are looking for a full Project Delivery service with an industrial slant, or assistance with part of your project, DETA has the solution. We have the expertise to provide as much support as you require.

Learn more

Water & Wastewater Reduction

Water is a critical resource for many of our clients, and using water in the most efficient manner can de-risk business from an operational and consenting perspective. 

Learn more

Process Optimisation

Optimising the production or manufacturing process can make a world of difference at an industrial site. But it can often be a challenge to identify exactly which parts of the process need to be tweaked in order to get the plant really humming along. This is where we can help.

Learn more

Sustainability Strategy

Knowing where to start to embed ESG reporting or Sustainability strategy and action into an organisation can be a challenge. Our DETA sustainability team has international experience and can help with analysis, planning and implementing a tangible sustainability framework that covers the entire value chain.

Learn more
a logo that says `` remove 2 million emissions by 2030 ''

We have helped many businesses across New Zealand, Australia and the Pacific, improve energy efficiency, decarbonise, and leap ahead with their sustainability strategy

See our sectors
Share by: