Irish Theatre Institute published four editions of the Irish Theatre Handbook from 1998 – 2008. This publication contained information on Irish theatre, dance and opera companies, festivals, venues and support organisations in Ireland, North and South. It also contained information on international festivals and networks and contact information for a wide range of suppliers of services to the theatre sector. Viewed as an important and accurate resource for information on Irish theatre, The Irish Theatre Handbook had a wide national and international circulation.

An online companion resource (www.irishtheatreonline.com) was launched in 2004 and re-branded as IRISHTHEATRE.ie in 2014. IRISHTHEATRE.ie enables theatre professionals and the general public to access up-to-date theatre information in one easy to navigate site. The site contains detailed information on 130+ theatre, dance and opera companies, 100+ venues and networks, 30+ theatre and arts festivals, as well as listings of funding bodies, training and support organisations, actor and literary agencies and international performing arts festivals and networks.