The competition was launched by Blue Sheep in July and offers a top prize of a marketing tools and services package worth £250,000.
Entrants were judged on their current customer retention strategies and how the brands will continue to meet the challenges throughout the current economic downturn.
The competition was open only to businesses with an existing database size of more than 25,000 records and a marketing budget of at least £150,000 per annum.
The package includes Blue Sheep's AIM (aggregated information management) platform, Alterian's enterprise marketing suite, training from the Institute of Direct Marketing, suppression files from the REaD Group and postal consultancy from TNT Post.
The winner will be announced at a champagne lunch on Monday, September 22.
Emap, the UK B2B media group and events organiser, office supply company Office Depot, and venue provider De Vere Venues were chosen ahead of several entrants as the three finalists.
The overall winner will be decided by a panel of judges which includes Mark Roy, CEO of the REaD Group, Iain Lovatt, Blue Sheep chairman, Shaun Pitman, head of data at Centrica, and Huw Davies, managing director of Huw Davies Partnership.
Richard Lee, managing director of Blue Sheep, said "We launched Blutopia in response to the testing economic climate. Even with reduced budgets, it is vital we communicate to companies the importance of continued investment into data, and the insight derived from it to increase return on investment."