The Mosaic system, which has taken more than two years to build, now classifies more than a billion consumers worldwide.
Mosaic Ireland has been built using more than 170 data variables and classifies each of Ireland's 2.9m consumers into 11 groups and 40 distinct consumer types.
Marketers can use the system to help target their most profitable customers by finding out which types of customers are most frequently using their products and services to allow them to identify new markets and opportunities.
Experian employed a development team of more than 30 researchers, demographers, analysts statisticians and consultants to provide companies with an understanding of the socio-demographics, lifestyles, culture and behaviour of consumers across Ireland.
Lorcan Lynch, director of Experian's Irish marketing services division, said: "Companies can use Mosaic to apply segmentation across the entire range of their strategic marketing activities.
"This extends from product development and sales performance analysis through to branch location, media buying, direct mail, inserts, door-to-door distribution, telemarketing, email and internet communication."
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