Agencies submitted credentials for the first stage of the review and were also tested on thought leadership and strategies for helping clients enhance media efficiency and effectiveness.
The second phase will see the shortlisted agencies being evaluated on strategic thinking and analysis as well as media competencies and competitive costing.
A SingTel spokesperson confirmed that the three shortlisted agencies will be briefed "in August on SingTel’s requirements for the next phase of the review".
SingTel currently leads the local mobile market with a share of 46.4 per cent and 2.94 million subscribers.
In June, the telco ramped up its multimedia offerings by launching AMPed, a digital music download service and portal offering unlimited downloads for its mobile subscribers.
SingTel is also the exclusive local distributor of Apple’s iPhone 3GS handset in the Lion City.
SingTel handed its S$30 million (US$20.5 million) creative account to BBDO in January 2008.