LONDON, 10 February 2011 – INTERXION HOLDING NV, (NYSE: INXN), a leading European provider of carrier-neutral colocation data centre services today announced a strategic partnership with NYSE Technologies, the global commercial technology unit of NYSE Euronext (NYX) and the world's leading provider of end-to-end electronic trading solutions.

The strategic partnership builds upon NYSE Technologies’ use of Interxion as a provider of data centre space to house several network access points for its pan-European and Asian trading network, the Secure Financial Transaction Infrastructure® (SFTI®).

Stanley Young, CEO of NYSE Technologies said “Interxion have moved from being a trusted vendor to a strategic partner and we are delighted to use their data centre in the City of London to roll out a range of reliable, cost effective and low-latency trading, data and connectivity applications to a wider range of customers. The data centre is ideally located to achieve low latency access to a number of other venues and is the closest SFTI access centre to our new European Liquidity Centre in Basildon. This enables us to offer hybrid solutions both within our own facility and also at this prime location for customers wanting to reach other venues.”

NYSE Technologies will offer its full suite of low-latency trading solutions alongside its existing colocation offering within Interxion’s City of London data centre. New NYSE Technologies services available at Interxion will include the consolidated market data service, Superfeed™, which will be an additional point of data collection and dissemination in addition to the existing service at NYSE Euronext’s European Liquidity Centre. NYSE Technologies will also deploy its market-leading Risk Management Gateway™ (RMG™), a multi-market risk management and market access service. In addition, NYSE Technologies will now offer proximity services at Interxion’s City of London data centre for the first time, as part of NYSE Technologies’ strategy to expand its technology offerings into other, existing data centres in key financial centres.

David Ruberg, CEO of Interxion commented “We are very pleased that NYSE Technologies have chosen our data centre as the launch pad for these new services. This will give both existing and new trading customers within our City of London proximity centre the opportunity to connect with NYSE Technologies’ Risk Management Gateway™, Superfeed™ and proximity services at low latency.”