Irish Theatre Institute has published four editions of the Irish Theatre Handbook since 1998. This publication contained information on all Irish theatre, dance and opera companies, festivals, venues and support organisations in the Republic and Northern Ireland. It also contained information on international festivals and networks and contact information for a wide range of suppliers of services to the theatre sector. An online companion resource www.irishtheatreonline.com was launched in 2004 and re-branded as IRISHTHEATRE.ie in 2014.