The Special Observer Pillar includes representatives of the trade union movement, of employers’ and farmers’ organisations as well as of voluntary and community organisations.
It also contains political parties represented only at local level, some parties from Northern Ireland, representatives of the main Christian churches and bodies of religious minorities, and campaigning groups on both sides of the EU debate.
List of Pillar organisations and contacts
| Organisation | Name |
| Action From Ireland, AFRI | Joe Murray Mark Doris |
| Alliance Party | Stewart Dickson |
| Association of Former Officials of the European Union (Irish Section) | Neville Keery |
| Association of Irish Regions | Cllr Mary Freehill |
| Catholic Bishops' Conference | Fr Eoin Cassidy |
| Chambers Ireland | Sean Murphy |
| Christian Democrats | Nora Bennis/Elisabeth Cotter |
| Church of Ireland | Dr Ken Milne |
| Comhlámh | Conall O'Caoimh |
| Communist Party of Ireland | Eugene McCartan |
| Community Workers Co-op | Sean Regan |
| Concern | Paddy McGuinness |
| CORI Justice Commission | Fr. Sean Healy / Sr Maureen O'Connell PBVM |
| Construction Industry Federation | Peter Stafford |
| EAPN - European Anti-Poverty Network | Robin Hanan |
| EUReform | |
| European Movement | |
| Institute of European Affairs | Denis O'Leary/Jill Donoghue |
| Ireland for Europe | Ciaran Toland |
| Irish Alliance for Europe | Brendan Kiely |
| Irish Business and Employers Confederation | Brendan Butler |
| Irish Congress of Trade Unions | Blair Horan (CPSU), Joan Carmichael, John McDonnell (SIPTU) and Joe O'Toole (INTO) |
| Irish Cooperative Organisation Society | Padraig Gibbons |
| Irish Countrywomen's Assocation | Carmel Dawson |
| Irish Creamery Milk Suppliers Association | Pat O'Rourke, Jackie Cahill |
| Irish Delegation to the EU Committee of the Regions | Cllr Seamus Murray |
| Irish Farmers' Association | Seumas O'Brien |
| Irish Fish Producers Organisation (IFPO) | Lorcán Ó Cinnéide |
| Irish LEADER Network | Tom O'Donnell |
| Islamic Culture Centre | Summayah Kenna |
| Jewish Representative Council | Raphael Siev |
| Libertas | Declan Ganley |
| Macra na Feirme | Catherine Buckley |
| National Platform EU Research and Information Centre | Anthony Coughlan |
| National Women's Council of Ireland | Therese Murphy |
| National Youth Council of Ireland | James Doorley |
| No to Nice Campaign | Justin Barrett |
| Peace and Neutrality Alliance, PANA | Roger Cole |
| People with Disabilities in Ireland | Michael Ringrose |
| People's Movement | Patricia McKenna |
| Presbyterian Church | George McCullagh |
| Religious Society of Friends (Quakers) | |
| Sinn Féin | |
| Social Democratic and Labour Party | Alban Magennis |
| Socialist Party | Joe Higgins |
| Travellers4Travellers | Patrick Nevin |
| Workers Party | Sean Garland |
| The Wheel | Ivan Cooper |
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