E-commerce services company Art Technology Group Inc. has completed its acquisition of CleverSet Inc., in a transaction valued at approximately $9 million in cash, the company said on Wednesday. In late January, Cambridge, Mass.-based ATG (Nasdaq: ARTG - News) announced an agreement to acquire Seattle-based CleverSet, which markets an automated e-commerce recommendations service.

ATG will retain both CleverSet offices, located in Seattle and Corvallis, Ore. Todd Humphrey, former CEO of CleverSet, will assume the role of vice president, OnDemand Personalization. He will report to ATG CEO Bob Burke.

"Personalization has always been a key part of ATG's market leading commerce offerings. Now merchants can have the best of both worlds: ATG's current rules- and scenario-based personalization when they know what offers and information are best to present to their different customer segments, and CleverSet's automated personalization when they don't," said Burke, in a statement.