About CO2 Australia

Invest in natural capital

We are a team of passionate and committed ecologists, environmental scientists, carbon project managers and field-based project officers.

We’re dedicated to supporting clients to participate in and benefit from the ever-changing carbon and ecosystem markets, through innovative and industry-leading approaches to environmental services.

We’re leading the carbon projects market in native regrowth and large-scale reforestation, from planting trees to generating carbon credits, but carbon is not all we do.

We provide professional expertise including environmental advisory services, land management and carbon services to clients ranging from governments to corporates to landholders.

Investing in your business shouldn’t cost the environment

We’re committed to actively supporting the integrity of our natural environment and ecological restoration. Explore our certifications and environmental, social and governance (ESG) initiatives.

Innovation to create value now and into the future

We provide advisory services across carbon feasibility studies and project implementation, compliance auditing, environmental legislation, offset establishment and management, and natural capital accounting.


We’re one of the few companies that can offer end-to-end ecological services. We manage biodiversity offsets through impact analysis, offset identification and assessment, preparation of strategies and legal documentation, and management and monitoring of offset areas.


Commercial solutions to manage carbon emissions now and into the future. We support businesses operating in emissions intensive industries to reduce carbon liabilities through assessing carbon project feasibility, cost-effective carbon credit offsets, carbon scheme compliance management, and data collection and reporting.


Training workshops for anyone wanting to strengthen or refresh their knowledge of Queensland vegetation identification and assessment, combining classroom-based theory and learning activities with practical application in the field.

Land management

We have contracted projects in restoration, regeneration, tree planting, soil and waterways care. As part of our carbon delivery services, CO2 Australia owns and manages a carbon estate, located primarily in central New South Wales. These properties combine agricultural activities with storage of carbon stocks and provide agistment opportunities for our regional neighbours. Contact us to find out more.

Talk to us about investing in natural capital

Contact us

Meet our team

  • All
  • Biodiversity
  • Carbon
  • Operations
Marcus is an experienced advisor with a demonstrated history of a broad range of commercialisation, innovation and government incentive programs. He brings 23 years of corporate experience, including involvement in nature-based carbon programs as well as large-scale renewable energy project development. Marcus is also a director of CO2 Australia.

Dr Marcus Tierney

Chief Executive Officer
Van is a Chartered Accountant and multidisciplined finance professional with more than 15 years of experience in financial assurance and analysis, corporate transactions, business strategy and business management. She is eager to leverage her expertise and proven track record gained through tenure at a prestigious Big 4 firm to deliver great outcomes to stakeholders and contribute to the burgeoning carbon and biodiversity offset markets.

Van Dao

Chief Financial Officer
Tara has delivered thousands of hectares of biodiversity offsets for projects throughout QLD and has a strong understanding of state and federal environmental legislation. Her key areas of expertise include assessing ecological equivalence of impact and offset areas, identifying suitable offsets, quantifying offset availability and preparing EPBC Act Offsets Assessment Guides.

Tara D’Arcy-Evans

Head of Ecosystem Markets
Jarrad has over 25 years of experience in scientific research and environmental practice throughout Australia. His expertise is in terrestrial ecology and the design, delivery and ongoing monitoring of environmental offsets. Jarrad runs the exclusive Regional Ecosystem and BioCondition Assessment training for QLD, is an accredited BAM assessor in NSW and is an accredited Expert under the Accounting for Nature® Framework.

Dr Jarrad Cousin

Head of Ecology & Innovation
Tai has worked in ecological restoration since 2016, with expertise in all aspects of managing environmental projects and engaging with stakeholders. She manages CO2 Australia’s carbon advisory services, oversees compliance of the long-term carbon projects under the ACCU Scheme and delivers carbon projects with environmental co-benefits. Tai engages with method development with the Carbon Market Institute and is Chair of CO2 Australia’s OHS Committee.

Dr Tai Martin

Head of Carbon
As head of the geospatial team, Ryan manages CO2 Australia’s spatial project design, mapping, database management, remote sensing, monitoring and auditing. Ryan has over 15 years of working history in the GIS, spatial analytics and remote sensing fields, including Australian and international experience.

Ryan Campbell

Spatial Systems Administrator
Shane has 7 years’ experience delivering a wide range of environmental plantings across NSW and South-east QLD. As Operations Manager, Shane is responsible for overseeing Carbon Estate management and revegetation projects across Australia, as well as coordinating the field teams, ensuring data quality standards and OHS compliance, and supporting new project development.

Shane Allen

Operations Manager
Vanessa has over 25 years’ experience in natural area management and seedling propagation. Since 2015, she has been responsible for revegetation of almost 3000 hectares with more than 3 million seedlings across VIC, NSW and QLD. She engages with clients, First Nations people and groups, nurseries, landholders, contractors and community members for successful project delivery.

Vanessa Oxley

Propagation Coordinator
Carla has 15 years of experience in environmental project development and management. With CO2 Australia, she is responsible for fulfilling all requirements for ACCU Scheme projects, including legislative compliance, procedure development, fieldwork management, crediting applications and carbon accounting calculations. Carla is responsible for CO2 Australia's compliance with the Australian Carbon Industry's Code of Conduct and is Chair of CO2 Australia’s RAP Committee.

Carla Costa

Carbon Farming Program Manager
Victoria has worked in plant ecophysiology, conservation and ecological restoration since 2012. As a Carbon Farming Program Manager, Victoria oversees ACCU Scheme projects throughout Australia, focusing on ecological restoration projects. She collaborates closely with the Ecosystem Markets team on delivering carbon plus environmental co-benefits, specifically in Queensland. Victoria also serves as the Secretary of the Climate Active Committee.

Dr Victoria Perez Martinez

Carbon Farming Program Manager
Qurah has 15 years of Australian and international professional experience leveraging spatial technology and satellite data to achieve targeted outcomes. Her responsibilities include data processing and analysis, spatial dataset management and comprehensive support culminating in spatially and remotely sensed mapping outputs tailored for environmental solutions.

Qurah Fatima

Senior GIS Officer
Sarah has 17 years of experience in GIS and geospatial analytics with a background in environmental management. She provides support across both the Ecosystem Markets and Carbon Programs teams for mapping, analysis and management of geospatial data. Sarah also assists in the design of field-based ecological surveys and contributes technical geospatial support for new project development.

Sarah Worrall

Ecological GIS Analyst
With a background in environmental management and sustainable development, Jenna assists both the Ecosystem Markets and Carbon teams with project, contract and budget management, as well as contributes to development of new business opportunities. She also coordinates marketing and sustainability initiatives across the company and is Chair of CO2 Australia’s Climate Active Committee.

Jenna Kaney

Environmental Commerce & Sustainability Manager
Cath has 7 years’ experience in ecology, spanning a mix of research and industry. As a terrestrial ecologist, Cath’s expertise is in implementing and leading ecological surveys and services across a wide variety of ecosystems and projects, including habitat condition assessments, threatened flora and fauna surveys, Regional Ecosystem verification and GIS mapping.

Dr Catherine Bowler

Senior Ecologist
Briana has been working in the environment industry since 2015, beginning in research and ecological restoration. Since joining CO2 Australia, she has been managing and delivering environmental offset projects across QLD and into NSW. As a terrestrial ecologist, Briana is adept at implementing and leading ecological surveys across a variety of ecosystems, including habitat condition assessments, and various fauna and flora surveying.

Briana Clifton

Anai is an experienced terrestrial ecologist with an interest in new technologies and innovative approaches to fauna surveying. Her expertise is in leading fauna and threatened species surveys, undertaking flora assessments, project management, logistics and compilation of reports. She is also a qualified UAV pilot.

Anai Fien

Bianca is an ecologist with more than 5 years’ experience working across multiple industries including construction, mining, gas, renewables and scientific research. During this time, she has developed a keen interest in conducting surveys involving ground-truthing Regional Ecosystems and ecological values including targeting threatened flora and fauna. Bianca also helps manage and deliver ecological projects.

Bianca Staker

Brianna has 2 years’ experience in flora and ecology, having previously worked at the QLD Herbarium and with qualifications in plant science. Brianna supports the Ecosystem Markets team in field work, data collection and analysis, and biodiversity offset project delivery.

Brianna Cronin

Junior Ecologist
Samara comes from a technical background in ecological studies, bringing with her valuable experience in engaging with stakeholders from various backgrounds, including local communities and government agencies. She is a qualified UAV pilot, which, alongside her background in environmental consulting, contributes to a diverse skillset for CO2 Australia’s Carbon Programs operations.

Samara Honey

Carbon Programs Officer
Angela handles a variety of CO2 Australia’s administrative needs including management of estates, projects and contracts. Angela also provides financial assistance, handling invoicing and coordination of budget and asset management. Her role also extends to stakeholder liaison, and she is often the first point of contact for engagement with our organisation.

Angela Jerrick

Projects Administration Manager
With a background in local restoration, Rose now works to implement diverse plantation projects throughout QLD, predominantly under the Land Restoration Fund. Rose also works across both the Ecosystem Markets and Carbon Programs teams, assisting with biodiversity focused projects and data management.

Rose Easton

Environmental Project Officer
Jordan has over ten years of experience with CO2 Australia managing plantations across WA, as well as seven years’ previous experience working in agriculture. As a Project Officer, he is responsible for revegetation and vegetative inventory as well as property and firebreak management. Jordan assists the Carbon and Operations teams to deliver monitoring across a wide range of projects.

Jordan Hau

Project Officer, WA
With a background in sustainable agriculture, Megan brings experience in GIS mapping, plantation management, quality assurance and land care to the Operations team. Focused on the development and stewardship of the Carbon Estate, her role as a Project Officer involves the improvement of infrastructure, grazing, pest and fire management and building key stakeholder relationships.

Megan Harris

Project Officer, NSW
Todd has over 10 years of experience working various roles within local government, involving water quality monitoring and compliance, infrastructure maintenance and contract management. Growing up in a multigenerational farming family, he has a passion for agriculture and helping rural communities thrive. Todd’s focus is on managing the Carbon Estate and growing relationships with stakeholders.

Todd Porter

Project Officer, NSW
Georgia has previously worked in forestry and offsets, including surveys, mapping, inventory management, contractor liaison, ground maintenance, and weed, pest and fire management. She is passionate about the environment, cultural heritage and preservation of land, and has a certification in land management and conservation.

Georgia Bunce

Project Officer, NSW

Tyson Hovel

Project Officer, QLD
Izzy has academic training in environmental management and provides support across both the Carbon Programs and Ecosystem Markets teams. This includes project research, development, implementation and monitoring through various carbon methodologies under the Emissions Reduction Fund and within a range of Australian ecosystems.

Isabella Annett

Project Support Officer

Reconciliation Action Plan

CO2 Australia acknowledges Traditional Owners and Custodians of Country throughout Australia and recognises their ongoing connection to lands, waters and communities. We pay our respects to Aboriginal and Torres Strait Islander Elders past and present.

As part of this, we’re excited to be developing a Reflect Reconciliation Action Plan (RAP) through Reconciliation Australia. Due in September 2024, our Reflect RAP will involve developing relationships with Aboriginal and Torres Strait Islander stakeholders, and further scoping our sphere of influence to meaningfully engage in reconciliation.