Kabosh Theatre Company was established in 1994 and has since become a leading independent theatre company in Northern Ireland, bringing heritage to life and engaging with the legacy of the Troubles to further reconciliation. They integrate new writing and unusual spaces that promote inclusivity of access and participation in the arts. Kabosh regularly produces a range of productions and participatory projects, including a Streets of Belfast app which encourages visitors to take a self-guided street tour, accompanied by audio clips, historical images and video recordings of dramatic performances from local actors. Their 2022 play, Callings, performed at the Lyric Theatre, explored the experiences of gay men and women in 1970s Nothern Ireland, by telling the history of the Cara-Friend helpline.
Ephemera in the Kabosh collection contains tickets, flyers, reviews, postcards, and photographs. Some items of note include a leaflet for Northern Exposures, a platform enabling women performers to produce new work, photographs from The Shedding of Skin written by Vittoria Cafolla and directed by Paula McFetridge, and flyers for A Queer Ceili, and Staging Sexuality.