InterXion Holding N.V., a leading provider of carrier-neutral colocation data center services in Europe, increased the proposed deal size for its upcoming IPO on Thursday. The Netherlands-based company now plans to raise $244 million by offering 20.4 million shares (20% insider) at a price range of $11-$13. The company had previously filed to offer 18.55 million shares (12% insider) at the same range. At the mid-point of the revised range, InterXion Holding N.V. will raise 10% greater proceeds than previously anticipated. InterXion Holding N.V., which was founded in 1998 and booked $246 million in sales last year, plans to list on the NYSE under the symbol INXN. BofA Merrill Lynch, Citi and Barclays Capital are the lead underwriters on the deal, which is expected to price this week.