Interxion Holding N.V. (NYSE: INXN), a leading European provider of carrier neutral colocation data centre services, announced today that CFO Josh Joshi is scheduled to speak at the Citi 2012 Entertainment, Media, and Telecommunications Conference on Wednesday, January 4, 2012 at 12:40 p.m. PT at the Palace Hotel in San Francisco, California. Interested parties can listen to the session via a live webcast at http://www.veracast.com/webcasts/citigroup/emt2012/42107286.cfm. An archived replay will be available approximately one hour after the conclusion of the live event at the same URL and will remain available for replay through April 3, 2012. About Interxion Interxion is a leading provider of carrier-neutral colocation data centre services in Europe, serving over 1,200 customers through 28 data centres in 11 European countries. Interxion’s uniformly designed, energy-efficient data centres offer customers extensive security and uptime for their mission-critical applications. With connectivity provided by 400 carriers and ISPs and 18 European Internet exchanges across its footprint, Interxion has created content and connectivity hubs that foster growing customer communities of interest. For more information please visit www.interxion.com. “Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: Statements in this press release regarding Interxion´s business which are not historical facts are "forward-looking statements" that involve risks and uncertainties. For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see "Risk Factors" in the Company's Form 20-F for the most recently ended fiscal year.