Meet some of the team

Michael O'Byrne, CEO

Prior to joining Greenstreets, Michael worked in senior commercial roles in the Software and Logistics sectors. This included five years with Quest Computing as Head of Business Development, with responsibility for initializing and developing their product strategy.

In a career spanning more than 25 years, Michael has worked with a number of international and publicly quoted companies including Computer Associates and AP Moller Group and brings with him a wealth of commercial and marketing experience. Michael completed his MBA with the Open University in 2001.

Howard Mulligan, Commercial Manager

Howard Mulligan has over 10 years experience in assisting companies get the most out of their internal reporting systems, both as a senior member of Greenstreets staff and in his previous role within the retail sector. With qualifications and extensive experience in both business and environmental management systems, Howard provides a broad range of services to our client base.

Val Sheridan, Senior Consultant

Val Sheridan is Senior Environmental Consultant with Greenstreets and manages client projects in both the Compliance and Energy & Carbon Management sectors.

He is a Humanities graduate, holds an MSc in Sustainable Development and also has an Advanced Diploma in Project Management. Val has worked as the lead consultant on a range of national and international projects and has also undertaken training programs relating to IS393 and ISO 14064 Greenhouse Gas Projects. Val's previous experience includes the waste management and planning departments of Cavan County Council.

Keith Burton, IT Director

Keith has previously worked as a Senior Analyst Programmer and Project Leader in the financial services industry. Keith is a specialist in financial, CRM, and statistical application development.

Keith joined Greenstreets in December 2000 and has been responsible for the development of Greenstreets internal systems and software products for industry. Keith has also been involved in the development of reporting systems for Repak members, End-of-Life Vehicle and Waste Tyre compliance.

Fiona Cox, Sustainability Manager

Fiona Cox has worked throughout Greenstreets' operations since 2000, specialising in energy auditing, carbon footprinting and corporate sustainability. She has a Masters in Sustainable Development and currently heads up our Energy and Carbon Management division.

Fiona has previously worked with Arup Consulting Engineers in the UK and Ireland and has also spent time in Australia working in the area of resource management and carbon auditing.

John Pollock, Client Services Manager

John Pollock has been involved in policy development and project implementation, related to energy and resource management, for a diverse number of organisations in the private, community and government sectors in Australia and the United Kingdom.

Apart from energy management consulting in the United Kingdom, John has worked for the State Government of Western Australia, the Australian Defence Department and latterly local governments in the State of Victoria.

John holds a B.Sc. in Energy Engineering from Napier University, Edinburgh and a Diploma of Carbon Management from Swinburne University, Melbourne. He also has membership of the Australian Institute of Energy and the Energy Institute in the United Kingdom.

David Darcy, CEO Australia

David Darcy is a fellow of the Chartered Association of Certified Accountants. He has over twenty years of commercial experience, including ten years as a financial auditor. He has worked in a range of companies, from SMEs to FTSE 100 plc's. Prior to Greenstreets, David was Financial & Statistical Controller with Repak (the national packaging compliance scheme in Ireland).

David founded Greenstreets in March 2000 and has been involved in the ongoing development and delivery of its products and services. He now heads up Greenstreets' Australian operation, responsible for developing services to meet the requirements of the National Packaging Covenant (NPC).