Trinity Mirror is the UK’s largest newspaper group due to its large estate of regional newspapers. The Daily Mirror, Sunday Mirror and People tabloid newspapers are its most famous titles. Trinity Mirror has been in a long running circulation battle with the News International Sun newspaper. Trinity Mirror is listed on the London Stock Exchange.IT Leader: Tony Pusey, CIOIn role since: Since 2000Primary technology suppliers: Google, HP, IBM and OracleSignificant strategic technology deals been struck in the last 12 months: Cable & Wireless for VoIP and continue roll out of Salesforce CRM Read the CIO interview: CIO Profile: Trinity Mirror's Tony Pusey on pioneering retail systems CIO Profile: Trinity Mirror's Tony Pusey on the tech for the modern newspaper CIO Profile: Tony Pusey of Trinity Mirror on the switch from paper to pixels