Capgemini Signs Turn-Key Datacentre(SM) Lease Agreement With Digital Realty Trust

DUBLIN and PARIS -

Digital Realty Trust, Inc. (NYSE: DLR), the world’s largest wholesale datacentre provider, has completed a Turn-Key Datacentre(SM) lease agreement with Capgemini (www.capgemini.com), one of the world’s foremost providers of consulting, technology and outsourcing services. Under this agreement, Capgemini will establish a new datacentre in a Digital Realty Trust property in France during the summer to support the growth of its datacentre infrastructure.

“We are delighted to be working with Capgemini on this important datacentre project for its global IT strategy. Our Turn-Key Datacentre(SM) is an ideal solution for corporate customers such as Capgemini, allowing them to focus on deploying their IT systems in a timely, cost effective manner with a datacentre infrastructure partner they can rely on for the long term,” said Bernard Geoghegan, Senior Vice President, International Operations of Digital Realty Trust.

Over the past two years Capgemini has put much effort into upgrading its hosting offering in order to provide its clients with maximum resilience and security levels, optimisation of energy costs, together with a high level quality of services. Capgemini chose Digital Realty Trust because it specialises in datacentre facilities, has international operations, and is financially sound. “By leasing space in its facility, we are able to move forward immediately with our datacentre plans without the significant capital investment ordinarily associated with large hosting projects,” said Olivier Herrmann, Capgemini’s Deputy Chief Operations Officer, Outsourcing Services. “We also chose Digital Realty Trust because of the company’s proven track record of supplying reliable solutions to the world’s leading companies.”

Digital Realty Trust Turn-Key Datacentre(SM) facilities provide state-of-the-art environments for supporting mission critical infrastructure, with advanced cooling, power, redundancy, and sustainability features to ensure that critical applications are available while optimising energy efficiency. Digital Realty Trust’s Turn-Key Datacentres(SM) are scalable from hundreds of kilowatts of IT Load to megawatts of IT load and are located in markets throughout North America and Europe. Each Turn-Key Datacentre(SM) facility is physically secure and features a state-of-the-art power and cooling architecture that has been optimised for green operation. Every Turn-Key Datacentre(SM) is built using the company’s proprietary POD Architecture(SM) and uses metered power to ensure that clients pay only for the power that they use.

About Digital Realty Trust, Inc.

Digital Realty Trust owns, acquires, redevelops, develops and manages technology-related real estate. The Company is focused on providing Turn-Key Datacentre(SM) and Powered Base Building(SM) datacentre solutions for domestic and international tenants across a variety of industry verticals ranging from information technology and internet enterprises, to manufacturing and financial services. Digital Realty Trust’s 75 properties, excluding one property held as an investment in an unconsolidated joint venture, contain applications and operations critical to the day-to-day operations of technology industry tenants and corporate enterprise datacentre tenants. Comprising approximately 1.2 million square metres (13.0 million square feet) as of April 30, 2009, including approximately 111,000 square metres (1.2 million square feet) of space held for redevelopment, Digital Realty Trust’s portfolio is located in 27 markets throughout Europe and North America. For additional information, please visit Digital Realty Trust’s website at www.digitalrealtytrust.com.

About Capgemini

Capgemini, one of the world’s foremost providers of consulting, technology and outsourcing services, enables its clients to transform and perform through technologies. Capgemini provides its clients with insights and capabilities that boost their freedom to achieve superior results through a unique way of working, the Collaborative Business Experience(TM). The Group relies on its global delivery model called Rightshore(R), which aims to get the right balance of the best talent from multiple locations, working as one team to create and deliver the optimum solution for clients. Present in more than 30 countries, Capgemini reported 2008 global revenues of EUR 8.7 billion and employs over 90,000 people worldwide.

More information is available at www.capgemini.com.

Capgemini Outsourcing Services (OS) draws on the expertise of more than 25,000 employees to manage, innovate and improve the IT systems and business processes of its clients. Capgemini OS offers a full spectrum of services including Applications Outsourcing, Infrastructure Outsourcing, Business Process Outsourcing and Transformational Outsourcing. For more information: www.capgemini.com/services/outsourcing/

Safe Harbor Statement

This press release contains forward-looking statements which are based on current expectations, forecasts and assumptions that involve risks and uncertainties that could cause actual outcomes and results to differ materially. These risks and uncertainties include the impact of the current deterioration in the global economy, including the turmoil in the financial and credit markets; the downturn of local economic conditions in our geographic markets; decreases in information technology spending, including as a result of economic slowdowns or recession; adverse economic or real estate developments in our industry or the industry sectors that we sell to; decreases in real estate valuations and resulting impairment charges; our dependence upon significant tenants; bankruptcy or insolvency of one or more major tenants or a significant number of smaller tenants; defaults on or non-renewal of leases by tenants; our failure to obtain necessary debt and equity financing for refinancing current debt obligations, undertaking or completing redevelopment, completing acquisitions or other purposes; increased interest rates and operating costs; our failure to repay debt when due or our breach of covenants or other terms contained in our loan documents; financial market fluctuations; changes in foreign currency exchange rates; our ability to manage our growth effectively; difficulty acquiring or operating properties in foreign jurisdictions; our failure to successfully operate acquired or redeveloped properties; risks related to joint venture investments, including as a result of our lack of control of certain of these investments; delays or unexpected costs in development or redevelopment of properties; decreased rental rates or increased vacancy rates; increased competition or available supply of data center space; inability to successfully redevelop and lease new properties and space held for redevelopment; difficulties in identifying properties to acquire and completing acquisitions; our inability to acquire off-market properties; our inability to comply with the rules and regulations applicable to public companies; our failure to maintain our status as a REIT; possible adverse changes to tax laws; restrictions on our ability to engage in certain business activities; environmental uncertainties and risks related to natural disasters; changes in foreign laws and regulations, including those related to taxation and real estate ownership and operation; changes in real estate and zoning laws; and increases in real property tax rates. For a further list and description of such risks and uncertainties, see the reports and other filings by the Company with the United States Securities and Exchange Commission, including the Company’s annual report on Form 10-K for the year ended December 31, 2008. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

For Additional Information: A. William Stein Chief Financial Officer and Chief Investment Officer Digital Realty Trust, Inc. +1-415-738-6500 Pamela A. Matthews Investor/Analyst Information Digital Realty Trust, Inc. +1-415-738-6500 Bernard Geoghegan Senior Vice President International Operations Digital Realty Trust, Inc. +353-1-245-0650

Source: Digital Realty Trust, Inc.

A. William Stein, Chief Financial Officer and Chief Investment Officer, +1-415-738-6500, or Pamela A. Matthews, Investor/Analyst Information, +1-415-738-6500, or Bernard Geoghegan, Senior Vice President, International Operations, +353-(1)-245-0650, all of Digital Realty Trust, Inc.