Our staff


Karen Ciesielski CEO

Karen Ciesielski is the CEO of the IEN. With 20 years of experience in non-profit management, fundraising, communications, advocacy and campaigning, Karen works to promote the interlinked principles of environmental, social and economic sustainability by supporting IEN members. She also serves as the Coordinator of the Environmental Pillar.
Email Karen

Alt Text
Justin Byrne  COO

Justin is the Administrator for the IEN, having joined the organisation in 2010. Previously he worked for KPMG as IT Operations Manager and prior to that in management for a division of Unigate PLC in London. He has extensive experience in planning issues.

Email Justin

Catherine O’Toole
Local Environmental Development Officer

Catherine is working to increase engagement in the environmental side of the Public Participation Networks (PPNs). In order to educate and inspire those working with the PPNs, Catherine provides complimentary training opportunities to environmental representatives

Email Catherine


Caitriona Rogerson
SDG Project Coordinator

Caitriona is the Irish Project Coordinator at the IEN for the EU-funded project ‘Make Europe Sustainable For All’. Caitriona is working alongside three other partner organisations in Ireland to raise awareness and encourage action to be taken on the Sustainable Development Goals (SDGs) at national, local and grassroots level.

Email Caitriona
Alt Text
Niall Sargent
Communications and Development

Niall Sargent is the Communications Officer at the IEN & Editor of The Green News. Niall has a background in journalism, specialising in data-led and investigative work on environmental issues. Niall works on current campaigns run by the IEN and communicates with media sources to deliver policies, news and submissions to the public.

Email Niall

Alt Text
Attracta Uí Bhroin
Environmental Law Implementation Group Facilitator

Attracta is the facilitator for the Environmental Law Implementation Group – a joint initiative with the Irish Government to support the proper transposition and implementation of environmental law, including the further development of eNGOs’ capacity to leverage the law to support their missions.

Email Attracta