The original signatories of the Memorandum and Articles of Association were:
George Graham, Christine Doherty, Sean Nelson, Patrick Kerr, Moore Blair, Hilda Stewart, Christine Keenan, Sheldon Murray, Brian McGookin, Jim McNally and Joe McErlean.
The current Board of Directors currently consists of the following, in no particular order:
Peter Boyle (Chairman), William Allen (Treasurer), Eileen Ingram (Secretary), Brian McGookin, Helen Boyd, Martin Hackett, Liam Hurrell, Oonagh Heatley.
The staff at ARCHES currently includes Hannah Moloney (Operations Manager), Sinéad Morren (Senior Administrator), Peggy Mulholland (Community Development Administrator), Owen McClurkin (Finance & Office Assistant), Ergnat McLaughlin (Caretaker & Property Manager) and Mary Robb (Cleaner).