Under the three-year contract, Brennan will provide Accor Hotels with access to a 24x7x365 day remote Service Desk support, proactive remote server monitoring and regular onsite maintenance.
In addition, Brennan will be engaged throughout the contracted period for a range of IT infrastructure projects.
Paul Smith, general manager IT Services at Accor Hotels said part of the company's tender proposal included infrastructure upgrade plans.
"With the tourism industry taking a hit, the accommodation and hospitality industry is under pressure to drive greater value from all business investments," he said.
"Information technology in particular, is an area where we are keen to demonstrate efficiency and cost savings.
"Brennan has a strong heritage in the hospitality sector and were able to customise a solution that demonstrated a clear understanding of the issues the group was facing."
Stephen Sims, general manager sales and marketing at Brennan, said the challenge was to reduce cost of support and increase service levels.
"By introducing proactive server monitoring we are able to quickly identify and fix many of Accors' IT issues, in many cases," he said.
"This reduces the amount of time required for an engineer on site and therefore reduces the total cost of service."