Quaero{{/a}, a provider of Web marketing and other services, is being sold to CSG Systems International in a deal worth at least $15 million.

The acquisition is expected to close by the end of December.

Quaero, which was founded in 1999, is privately held. Quaero is Latin for “I seek.”

CSG will pay Quaero shareholders $15 million in cash and as much as $9.5 million through 2010 if certain criteria are met, the companies said.

Quaero is expected to generate $13 million in revenue this year and will be close to break-even, the firms added.

CSG, a publicly traded firm (Nasdaq: CSGS) is based in Englewood, Colo. CSGS provides customer interaction management and billing solutions.

"There is significant market opportunity related to utilizing advanced customer knowledge," said Naras Eechambadi, chief executive officer at Quaero. "With this acquisition, CSG will be able to offer an innovative customer intelligence solution that allows its clients to increase profitability, enhance customer satisfaction, and better position marketing strategies."

CSG plans to incorporate Quaero’s technology into its own product suite.

"Our clients will be able to apply this customer intelligence and predictive analytics to enhance many aspects of the customer-care experience," said Peter Kalan, CSG president and chief executive officer, in a statement. "With the capability to operationalize this data, CSG can now offer relevant, personalized marketing and customer care communications to support all aspects of the customer life cycle, including customer acquisition, customer retention, collections, and up-sell and cross-sell programs."