Who We Are

Paul Brown

Managing Director

Since the mid 1990's Paul has been involved in establishing many sustainability organisations including the MAV Customer Innovation Committee, the Victorian Public Lighting Approvals Board, the Australian Wind Energy Association and the Australian Student Environment Network.

After working for many years in Local Government, Paul founded Ironbark Sustainability in 2004 to help local governments deliver sustainable street lighting and building management programs. 

Ironbark has steadily expanded since its formation and now serves around 200 Local Governments each year. In 2013, Ironbark helped Councils access over $50 million in funding for sustainable asset management programs.

In addition to work in Australia, Paul has also assisted local governments in the UAE, as a key presenter at the annual Middle East Smart Lighting Conference and in Kazakhstan, to plan for large scale energy efficient street lighting programs.

Alexi Lynch

Business Manager

Alexi has been at Ironbark Sustainability since 2009. He works with councils on range of energy efficiency and renewable projects. He brings decades of experience in project management, stakeholder engagement, facilitation and program development in the sustainability field since co-founding the Environmental Jobs Network (EJN) in 2001. Alexi managed ICLEI Oceania's flagship Cities for Climate Protection (CCP) campaign in Australia until mid-2008, building the capacity of Local Government and communities to tackle climate change.

Alexi has managed hundreds of energy efficient asset management programs local governments throughout Australia and worked on the development and creation of the Australian One Planet Councils to assist councils in assessing their sustainability performance against a range of indicators. Alexi manages the team of 20 staff; develops and monitors strategic direction and financial performance indicators; works with councils and their stakeholders on energy efficiency, renewable energy and sustainability projects; promotes climate action and sustainability to the broader sector. He has managed hundreds of energy efficient asset management programs for local governments and communities throughout Australia. 

Since 2013, Alexi has managed a project team that has obtained over $100m of government funding and third-party finance for energy efficiency and renewable energy projects throughout Australia.

Lucy Carew-Reid

Senior Project Manager

Lucy is experienced in climate change, energy and water efficiency and renewable technology at both a practical and policy level. She has focused extensively on sustainable buildings, urban design and outdoor lighting in Australia and Europe.

Lucy has worked at Ironbark Sustainability since 2007 and is based at Ironbark's NSW office where she assists clients to craft and implement effective climate change, street lighting and building projects and strategies.

Lucy played a key role in establishing Ironbark's Building Audit and Rating Tool (BART)a smart inexpensive rating, retrofit and audit program tailored to tackle council facilities in one visit. The program has achieved immediate savings at close to 1,000 assets around Australia, and council staff and other consultants have also been trained to implement the program themselves.

Her strengths include project management, technical analysis, group facilitation and a strong understanding of the intricacies of managing a large number of building and lighting assets.

Matthew Sullivan-Kilgour

Head of Data and Analytics

Matthew has worked in sustainability across a broad range of sectors and applications, and joined Ironbark in January 2018. His primary motivation is in addressing climate change and facilitating the scale of collaboration needed to address it successfully.  

Matthew has a background in autonomous systems engineering, working in Australia and the USA. He has previously worked for the Moreland Energy Foundation as their Head of Research in addition to working as an energy efficiency consultant at several firms, and lecturing in building efficiency and renewable energy systems. He is also the co-founder and Head of Analytics of HuxConnect, a technology startup that produces sensor networks and building optimisation solutions.

Through his consultation in the sustainability sector, he has worked with industry groups such as the Clean Energy Council and the Alternative Technology Association, government agencies such as the Office of Environment and Heritage and Sustainability Victoria, research groups such as Melbourne University and the CSIRO as well as a broad range of commercial entities.

Ronald Lee

Queensland Programs Manager and Technical Analyst

Ronald is an experienced sustainability professional with strong data analysis and financial modelling skills. He brings knowledge and experience from the telecommunications, resources, sustainability and local government sectors.

He has worked at Moreland City Council as an ESD consultant, where he played a key role in developing their corporate carbon reduction plan, Greenhouse Gas Inventory to the National Carbon Offset Scheme (NCOS) standard and delivered solar feasibility studies.

In his current position, Ronald manages projects across two regions of councils and is involved in several energy efficiency, renewables and street lighting projects covering all stages of the project life cycle from feasibility studies, funding applications to project delivery. As part of his role in developing Moreland’s corporate Greenhouse Gas Inventory, Ronald requests data from multiple retailers, reviews, cleanses and analyses the data to ensure it meets the stringent requirements of the NCOS auditors.

Ankit Kamra

Western Sydney Sustainability Projects & Liaison Officer

Ankit joined Ironbark in September 2019 and brings more than 10 years of experience helping clients tackle a diverse range of energy, sustainability, and responsible development challenges.  He has managed energy efficiency and climate change mitigation projects for multilateral/bilateral institutions including UNDP, UNEP, ADB, UNIDO, World Bank, GEF, GIZ, to name a few, across South Asian, Southeast Asian and Central Asian Countries.

Ankit supports Ironbark’s work in Western Sydney via project liaison and engagement with local stakeholders, and in the development of the sustainability programs and projects. He currently works from the Western Sydney Regional Organisation of Councils to support Ironbark’s coordination of a WSROC regional strategy and a program of work on energy topics.

In his previous role with the energy advisory team at PricewaterhouseCoopers (PwC), he was working with municipal corporations to help them accelerate the path of energy efficiency, managing both business development and project delivery. Highlights from Ankit's project management experience include development of the NDC Roadmap for the Energy Sector of Indonesia, development of the GEF CEO Endorsement Document for energy efficiency projects in India, and development of pilot energy efficiency projects in Mongolia.


Hannah Snape

Tasmanian Programs Manager

Hannah joined Ironbark Sustainability as a Project Officer in 2016. She has previously worked in international development, most recently in a project management role on water, sanitation and hygiene projects in the Pacific Islands.  Other previous roles include managing a Small Grants Program for the Bjarne K Dahl Trust - a philanthropic organisation focused on eucalypti, and conducting environmental and compliance audits for music festivals including Splendour in the Grass and Falls Festival Byron Bay. She has a Bachelor of Social Science (Environment) from RMIT University.

Ross McKirdy

Project Manager - Public Lighting

Ross has worked at Ironbark Sustainability since the beginning of 2011. As Project Manager, Ross assists councils with projects ranging from implmentation of large-scale bulk street light upgrades, to public lighting strategy, policy and guidelines development and workshop facilitation. 

Ross manages the technical approvals process for new street lighting technologies (on behalf of the Public Lighting Approvals Network); Ironbark's role as an Accredited Certificate Provider under the NSW government Energy Savings Scheme; and from 2014 to 2017 managed Ironbark's role as a NATA-accredited Inspection body. 

From 2016 to 2017 Ross also represented Victorian councils on the Australian and New Zealand Road Lighting Standards Committee. 

Libby Gleeson

Project Manager

Libby joined Ironbark Sustainability as a Field Auditor for the Street Lighting team in early 2014. Since then, Libby has expanded her role to become a project manager for street lighting bulk change projects, lighting level assessments and open space lighting audits.

Libby now has extensive experience in managing street lighting bulk change projects for various councils across Victoria assisting with project planning, design, procurement and management of works.  

Libby developed a keen interest in sustainability related projects through previous work in marine parks, interpretation and planning with Parks Victoria between 2012 and 2014.

Peter Whittle


Peter joined Ironbark in 2016 after eight years as a Greenhouse Accounting Officer at the City of Yarra. Prior to that, he was the Finance Manager at ICLEI Oceania for several years.

At Ironbark, he takes care of invoicing and payments, as well as other financial matters like tax.

James Tait

Project Manager

James joined Ironbark in early 2015 to assist with the field audit component of metered lighting audits. He worked on projects for Wyndham, Port Phillip, Brimbank and Moonee Valley. Since then, James has expanded his role to Project Manager.

James now has extensive experience in managing lighting projects including financial analysis, design, auditing and supporting councils with bulk changes across Victoria, Tasmania and South Australia.

Jenny Frieden

Project Officer

Jenny joined Ironbark in 2015, having previously worked for state government and as a researcher in the environmental statistics section of CSIRO. She has a background in geography and statistics, with a Master of Environment from the University of Melbourne.

Since joining Ironbark, Jenny has worked on a range of climate and energy efficiency projects, including preparing business cases, action plans, modelling carbon emissions and developing strategies for emissions reductions.

Keith Harwood

Project Manager - Energy Efficiency

Keith joined Ironbark Sustainability in 2008 to provide support for an open spaces lighting audit in the City of Port Phillip. Since then Keith has expanded his role from lighting auditor to Geographical Information Systems team leader, project manager and lighting technology assessor.

In these roles Keith has acted as project manager for a number of lighting design projects as well as providing a similar role for street lighting bulk replacement programs and open space lighting audits.

Keith has assisted over 100 Councils prepare for street lighting bulk changes by assisting in design, project management and business case development.

Rachel Armstead

Project Officer

Rachel has an MSc in Environmental Management and Policy from Lund University Sweden. Before joining Ironbark she has worked on the policy team for the London environmental think tank Green Alliance, and as a consultant both in London and Melbourne, specializing in energy and carbon management. Through her consultancy Rachel has worked with local governments, businesses, and communities across the UK, Europe, and Australia delivering complex carbon inventories, establishing low carbon business networks, and running workshops and training on environmental management.

Lei Zhong

Technical Officer

Lei joined Ironbark in October 2015 focusing on project support in street lighting, including lighting level projects, open space lighting audits and lighting design projects. He also assists the technical approvals process on behalf of the Public Lighting Approvals Network (PLAN).

He has a degree in mechanical engineering from the University of Tasmania, and previously worked in technical roles in the Energy Market Authority Singapore, and Sembawang Shipyard.

John Hutchinson

Senior Project Manager

John joined Ironbark in 2012 and has been working in the sustainability industry for over 15 years. John has considerable expertise in developing, implementing and assisting others with Environment Management Systems (EMS) and environmental data management.

John developed and implemented EMSs at Sustainability Victoria (SV) and Department of Sustainability and Environment (DSE, now DELWP) before becoming the Whole of Victorian Government EMS coordinator where he worked with all Victorian departments to help implement their EMSs. John also worked with SV to develop the Resource Smart Government program that trained government agencies on how to develop environment management plans/strategies.

John led the development of the Victorian government Environmental Data Management System (EDMS) from understanding department and agency needs through to working with the chosen developer to project manage the development and testing of the software.

Nick Cody

Field Auditor and Project Officer

Nick started as a Field Auditor at Ironbark Sustainability in May 2016 to provide support on a large street lighting bulk changeover. Since then, he has worked on a number of other street lighting projects, particularly specialising in sustainable open space lighting. He has also become a key team member in the modelling of community emissions for councils Australia-wide.

Nick is passionate about environmental issues which has seen him chase many opportunities to make positive sustainability impacts both in Australia and abroad. In the past he has taken school-aged children tree planting, conducted experiments in a physiology lab into the effects of raised CO2 levels on plant defence, mapped forest on the outskirts of Beijing and collaborated with the rural poor to protect endangered mammals. Before joining Ironbark, Nick ran a gardening program at Red Cross helping asylum seekers improve their food security status while also imbedding his environmental values into teachings.

Nick as completed an Honours Degree of a Bachelor of Environmental Science at Monash University, as well as a Master of Social Change and Development through the University of Newcastle

Sue Oliver

Project and Administration Officer

Sue joined Ironbark as a project officer in 2019. She has over 10 years’ experience working for local and international not-for-profit organisations in the sustainability and environment sectors including ICLEI – Local Governments for Sustainability and Environment Institute for Australia and New Zealand (EIANZ). More recently in her role at ICLEI Sue has been responsible for assisting local Governments across Australia, New Zealand and the Pacific Islands to build sustainable and smart futures by supporting a range of programs addressing sustainable water management, urban greening, low carbon development and climate change adaptation and resilience.

Previously while working for the EIANZ, Sue coordinated professional development seminars and workshops, building cohesive networks and partnerships and liaising with corporate, government and not-for-profit organisations.

Patrick Norman

Lighting Design & GIS Officer

Patrick joined Ironbark in 2008 and has participated in numerous sustainable public lighting projects, which have given him a solid understanding of the Australian Standards for street and public lighting. 

He has worked with many local councils, helping them achieve sustainable and safe lighting designs for broad-scale bulk change programs, site-specific designs, as well as park and sports lighting. 

Patrick employs skills in GIS and a range of other software including MapInfo, Perfect Lite and AutoCAD to produce maps, designs and other valuable data to councils.

Sam Wearne

Western Sydney - Sustainability Projects and Liaison Officer

Sam has a decade of experience assisting clients across Asia to understand and manage sustainability risks, issues and opportunities. He has led work on a variety of environmental and social issues and helped form responses via organisational strategy and onsite management of social and environmental impacts. His clients have included governments at local, state and national levels, as well as international organisations and development bodies. 

Sam’s work has seen him based in Western Victoria, Arnhem Land, Melbourne, France, China & Mongolia. Now based in Sydney, Sam joined Ironbark Sustainability in 2018 to help provide an excellent level of service to local governments in Western Sydney.

Sam has developed significant commercial acumen from managing complex projects for a diverse clientele. He has worked with major multinationals in finance, oil and gas, mining, manufacturing, agriculture and hospitality, and recently helped one of Australia’s largest insurance groups to develop a comprehensive response to the issue of climate change. 

Sam enjoys helping stakeholders at all levels to find pragmatic solutions that enable organisations to perform well, reach their goals and make a positive impact.

Martina Povolni

Field Auditor

Martina joined Ironbark Sustainability in early 2019, assisting in open space lighting, bulk changeover, lighting level assessments and other light auditing projects. More recently, she has expanded to assisting with project management for a street lighting bulk change project.

Martina comes from a varied background of skills and interests, including natural resource management, lab research and conservation volunteering.

James Bennie

Field Auditor

James joined the Ironbark Sustainability team in November 2017 as an auditor after completing a Bachelor of Environment and Society at RMIT University. Since then, James has conducted and assisted multiple types of audits, including quality, light level assessments and temperature sensor data collection.

James takes great interest in sustainability and has shown determination to conduct hands on projects in different environmental fields. Such projects include volunteering/interning at FSC Australia, participating in the Green Army program, volunteering for parks Victoria whilst also working in the environmental division for resource groups. This experience combined with previous tertiary auditing projects and reporting, has made James eager to contribute towards Ironbark Sustainability projects.

Ben Korff

Project Manager

Ben joined Ironbark Sustainability as a Project Manager in early 2020. Previously, he has worked in International Organisations such as the United Nations and the Red Cross Movement, managing both environmental and humanitarian projects. He has extensive experience in developing emissions baselines and monitoring, as well as a technical background in GIS and satellite remote sensing. Ben holds a Master’s Degree in Geography, with a focus on climate governance.

Dr. Richard Ryall

Technical Support Officer

Richard joined Ironbark in March 2020 focusing on project support to the head of data analysis for the climate team. His primary motivation is in addressing climate change and providing a bright future for his young family.

Richard has a strong quantitative background with a PhD in applied statistics and after being self-employed for the last 8 years as a statistical consultant is excited about exploring a new field in an area he is passionate about.