ChannelAdvisor, which provides e-commerce services for some of the world’s top Internet retailers, ranks first in two categories for annual web sales, according to Internet Retailer.

The 2011 guide ranks privately held ChannelAdvisor first in the Marketplaces and Comparison Shopping Engine channels.

The Morrisville-based firm also ranks second in Paid Search and third in Rich Media.

“ChannelAdvisor is quickly becoming the standard for the world’s top e-commerce brands,” said ChannelAdvisor President and Chief Operating Officer David Spitz in a statement. “We’ve invested heavily in our platform and our people over the last decade, earning us the most comprehensive e-commerce solution on the market. We take great pride in the fact that every component of our platform was awarded this year as best in class. We now power half of the [Internent Retailer] 500 top 10 and 30 percent of the top 100, and we’re honored to be trusted by the top brands in retail.

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