Interxion Executive to Present at Upcoming Conference

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 Bank of America Merrill Lynch 2012 Media, Communications & Entertainment Conference on Thursday, 13 September 2012 at 12:00 noon PT. Interested parties can listen to the session via a live webcast at http://www.veracast.com/webcasts/baml/media2012/id11207275.cfm. At the conclusion of the conference, the webcast will be archived and available for replay until 12 December 2012.

About Interxion

Interxion (NYSE: INXN) is a leading provider of carrier-neutral colocation data centre services in Europe, serving a wide range of customers through 31 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 over 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.

Forward Looking Statements

This press release contains forward-looking statements that involve risks and uncertainties. Actual results may differ materially from expectations discussed in such forward-looking statements. Factors that might cause such differences include, but are not limited to, the difficulty of reducing operating expenses in the short term, inability to utilise the capacity of newly planned data centres and data centre expansions, significant competition, the cost and supply of electrical power, data centre industry over-capacity, performance under service-level agreements, and other risks described from time to time in Interxion's filings with the Securities and Exchange Commission. Interxion does not assume any obligation to update the forward-looking information contained in this press release.