Sustainability
starts and ends with NettZero.
With a presence across Australia, our specialties are:
- NABERS, CBD, and BEEC compliance
- Carbon Neutrality certifications
- Environmental, social, and governance policy and reporting
NettZero are Australia’s trusted sustainability experts. Our team of qualified environmental engineers have the experience and capability to help your business make the decisions it needs to manage emissions and improve its sustainability credentials.
NettZero makes sustainability simple.
There are many different programs and methodologies, each with their own set of benefits and shortcomings. NettZero’s experience working with various sustainability standards and regulators for over a decade leaves us in a unique position to tailor solutions for our clients that not only fulfil requirements, but maximise environmental outcomes.
A sustainable business is not just good for the environment, but helps create a strong brand image and a healthy workplace. As we move towards the low-carbon economy and emission reductions are enshrined in legislation, there has never been a better time to decarbonise your business and stay ahead of the pack.
Track & Set
Track emissions and set reduction goals.
Reduce & Monitor
Decarbonise your organisation and measure improvements.
Remove & Avoid
Identify low-carbon alternatives to current practices.
Report & Inspire
Report on improvements and lead your industry towards decarbonisation.
Our values
Decisive action to
achieve net zero results
Integrity
ensures that we operate with transparency and maintain trustworthiness with our clients and industry.
Efficiency
requires appropriate use of time and resources to ensure we achieve targeted outcomes for our customers.
Innovation
encourages us to think outside the box and create new solutions.
Fairness
means we provide equal opportunities for employment and ensure all stakeholders are treated with respect and dignity.
By abiding by these core principles, our company lives out its commitment to sustainability and inspires others to do the same. These values do not only create a better working climate, but also establish a standard of corporate ethics that can be passed down for generations to create a sustainable and equitable future.
Our team
Lisa Williams joined NettZero in 2016 as our Head of Business, bringing with her valuable expertise as a NABERS Accredited Assessor. Lisa's experience with the Property Council of Australia adds even more credibility to her already sterling reputation in the industry.
With her expansive background, Lisa is playing an integral role in shaping and implementing NettZero's business strategy and leading our business development with her unparalleled knowledge and passion for energy efficient building operations and management.
- NABERS Accredited Assessor: Office, Retail, Hotel
- CBD Accredited Assessor
- Cert IV in Property Services (Operations & Real Estate)
- Member of the Property Council of Australia ‐ Committee for Adelaide 2014‐2016
- NABERS Energy, Water, Indoor Environment, Carbon Neutral Accredited Assessor
- Green Star Accredited Professional
Marita Mewett is a seasoned business leader with over 25 years of experience managing transformative projects for organisations both in Australia and abroad across all industries.
Marita's role as CEO of NettZero combines her business savvy with a passion for sustainability and technology driven solutions. Her approach tis a balanced blend of professional methodologies, cultural perspectives, and individual values that drive an organisation to its highest potential, all the while fostering sustainable outcomes for growing businesses.
Michelle Tommosgard has a long-standing interest in Indoor Environmental Quality (IEQ). As part of her Masters of Sustainable Energy Engineering, Michelle conducted an extended IEQ research project.
Michelle currently puts her knowledge into practice at work, working closely with the NABERS team and playing a key role in formulating the current version of the NABERS Indoor Environment rules.
Michelle, along with the NettZero team and foundational client Stockland, developed a new approach for Green Star Performance (GSP) Indoor Environmental Quality evaluation in shopping centres. This enabled Stockland to boost their GSP score, whilst Michelle improved her understanding of how to get the most out of client GSP outcomes.
- NABERS Accredited Assessor: Office, Retail
- CBD Accredited Assessor
- Bachelor of Mechanical Engineering (HVAC)
- Green Star Accredited Professional
- NABERS Energy, Water, Indoor Environment, Carbon Neutral Accredited Assessor
- Indoor Environment Quality Engineer
- Member of Green Star Young Professionals
Atif Mansoor is a Senior Sustainability Engineer and Climate Active Registered Consultant at NettZero. He is an experienced Electrical Engineer with expertise in carbon and energy analytics, green building design and NABERS Ratings.
Additionally, Atif is an active member of Green Star Young Professionals, enabling him to stay current in energy and sustainability standards. He is well-recognised for his expertise and contributes to the development and implementation of building-performance best practices.
Atif is passionate about promoting sustainability and proudly helps clients reduce their carbon footprint and achieve Carbon Neutrality.
- Climate Active Registered Consultant
- NABERS Accredited Assessor: Office, Retail, Hotel
- CBD Accredited Assessor
- Electrical Engineer
- Green Star Accredited Professional
- NABERS Energy, Water, Indoor Environment & Carbon Neutral Accredited Assessor
- Member of Green Star Young Professionals
With a background in marketing and communications, Zach Greening has delved into sustainable business management with a particular interest in carbon trading and organisational emission reduction initiatives. Zach specialises in creating bespoke carbon solutions for Australian businesses, and is conversant with Australian & international carbon accounting standards and offset markets.
- Bachelor of Business majoring in Marketing
- Bachelor of Fine Arts majoring in Writing
- Postgraduate Diploma of Greenhouse Gas Accounting & NGERS Reporting
With a passion for sustainability, Shashank Singh has gained diverse work experience in implementing eco-friendly initiatives, conducting energy audits, and promoting energy & emission reduction strategies. Skilled in analysing environmental impact and driving sustainable practices, Shashank thrives when creating a greener and more sustainable future.
- NABERS Accredited Assessor for Office, Retail, Warehouse & Cold Storage, and aged care; Energy & Water, Indoor Environment
- Postgraduate degree:- Master of Engineering Management
- Postgraduate degree:- Master Of Engineering majoring in Energy Planning & Policy
- Undergraduate degree:- Bachelor Of Engineering in Mechanical engineering
As a NABERS assessor, Liam Young has conducted in-depth energy and water sustainability projects for commercial buildings. He has assessed the environmental performance of multiple building types from offices to shopping centres and warehouses and has collaborated with clients to monitor building performance to identify potential performance improvements. Through NettZero, Liam's understanding around the HVAC arrangements and building management systems in place has advanced his knowledge of sustainable practices in the built environment sector.
- NABERS Accredited Assessor for Office, Retail, Warehouse & Cold Storage, and aged care; Energy and Water
- CBD Accredited Assessor
- Bachelor of Mechanical Engineering & Commerce
Chris brings a wealth of skills to the NettZero team. With expertise in project management, quality assurance, and customer relations, Chris ensures seamless execution of sustainable initiatives for commercial properties.
Armed with a passion for the environment and a drive for innovation, Chris is dedicated to helping businesses navigate the complexities of the built environment. With his attention to detail and commitment to delivering exceptional results, he plays a crucial role in maximizing sustainability efforts at NettZero.
- NABERS Accredited Assessor for Offices
- CBD Accredited Assessor
Julie brings over 40 years of experience in Office Management and a wealth of expertise to her role as General Manager Corporate Services with NettZero, joining the team in 2019.
Exceling in overseeing high-level operations, budgets, forecasting and financial management, Julie’s proficiency ensures the successful completion of projects and the effective administration of NettZero.
Additionally, she holds certification as a Commissioner of Declarations and serves as Director of the not-for-profit ‘Just Mossin’.
With a strong foundation in mechanical engineering and a passion for environmental performance, Sharon Kawale specialises in assessing and improving building efficiency through the NABERS framework. She has delivered comprehensive energy, water, and indoor environment assessments across a range of commercial assets, including offices, retail stores, and shopping centres. Sharon applies her engineering expertise to optimise building systems, support renewable energy integration, and help clients achieve higher NABERS ratings and carbon neutral certification.
- NABERS Accredited Assessor for Office, Retail, and Shopping Centres; Energy, Water, and Indoor Environment
- CBD Accredited Assessor
- Bachelor of Mechanical Engineering
With a background in mechanical engineering and a strong focus on building performance, Hanniel Ng is an experienced NABERS and CBD-accredited assessor specialising in office and retail assets. He has delivered a wide range of energy, water, waste, and carbon neutral assessments, helping clients improve operational efficiency and achieve higher sustainability ratings. Hanniel combines strong technical knowledge with a practical approach to building optimisation, supporting asset owners and managers in reducing emissions and enhancing long-term performance. His favourite project types are office energy and water ratings, where he enjoys uncovering opportunities for measurable improvement.
- NABERS Accredited Assessor for Office, Retail, and Shopping Centres; Energy, Water, and Indoor Environment
- CBD Accredited Assessor
- Bachelor of Mechanical Engineering (Honours)
Building solutions
NABERS Ratings
Identify areas of inefficiency, launch cost-saving initiatives, and get the most out of your rating.
Green Star Performance
Increase your organization's sustainability credentials with a Green Star – Performance certification.
Indoor Air Quality & Environmental Assessment
Ensure the provision of a healthy and safe environment for tenants with our indoor air quality and environment assessment service.
BEEC & CBD Tenancy Lighting Assessments
Fulfil CBD policy compliance with a NettZero conducted BEEC (Building Energy Efficiency Certificate) including a CBD Tenancy Lighting Assessment.
NABERS Improvement
Audit your Energy & Water consumption and deploy targeted initiatives to improve your NABERS Rating.
Monthly NABERS Reporting
Avoid surprises with monthly NABERS reports and stay on top of performance between ratings.
Carbon solutions
Carbon Foot Print Assessment
You can’t manage what you don’t measure
The first stage of any emission reduction initiative is to measure your Greenhouse Gas inventory baseline, or Carbon Footprint. Our emission inventory analysis will improve your understanding of the businesses emission intense activities and facilities so they can be targeted for improvement.
Decarbonisation roadmap
Get your business ready for the low carbon economy.
Committing to Net Zero emissions is one thing, but achieving it is another. A decarbonisation roadmap shows stakeholders that your business has planned for the future and is able to transition to a low-carbon business model.
Climate Active Carbon Neutral Certification
Certify as Carbon Neutral with Australia’s flagship carbon accounting program.
Climate Active is the only Carbon Neutral standard accepted by the Australian Government. Based on the Greenhouse Gas Protocol and ISO carbon accounting standards, Climate Active can be used to certify organisations, buildings, events, and products as Carbon Neutral.
Science Based Targets
Join the global movement of businesses committed to preventing global warming exceeding 1.5◦ Celsius.
Science Based Targets align your emission reduction trajectory with the goal of limiting global warming to no more than 1.5◦ Celsius. This globally recognised program is overseen by a consortium that includes the World Wildlife Fund, the United Nations Global Compact, the World Resource Institute, and CDP Worldwide.
Carbon Credits
Offset emissions and fund projects that protect ecosystems and generate renewable energy.
Carbon offsets allow organisations to compensate for their unavoidable emissions by investing in projects that reduce, remove, or avoid greenhouse gas emissions elsewhere, like reforestation or renewable energy.
This approach helps businesses immediately contribute to the fight against climate change, enhancing their sustainability credentials while working on reducing their own emissions.
ESG services
Generate your baseline ESG Report
Gain a competitive edge with our fast & easy ESG reporting service.
Whether you are new to ESG reporting or annually charting progress, NettZero provides the data and tools to help you make better decisions about your ESG goals and to demonstrate the social value of your business.
