Rackwise, Inc. (OTCBB:RACK.OB) (the “Company”), a leading developer of data center infrastructure management software and service solutions, announced today that it has received a purchase order in conjunction with a signed software license agreement with a leading Fortune 50 information technology (“IT”) services sector company (“Customer”) for deployment of Rackwise ®DCiM™ solutions in the Customer’s global data centers to support both its internal operations as well as its global outsourcing and infrastructure services business. This purchase order marks the single largest dollar volume order to date for Rackwise ® software and associated services. Rackwise ® management anticipates that together with additional second quarter transactions, this order will result in the highest dollar volume bookings quarter in the Company’s history. The Customer provides a comprehensive portfolio of services, software, and technology to solve critical problems for commercial and government agency clients throughout the world, coordinating service offerings and capabilities in outsourcing services, systems integration and consulting, infrastructure management, maintenance, and high-end server technology. As a global supplier of data center outsourcing and infrastructure managed services, the Customer continually seeks to integrate into its portfolio powerful state-of-the-art tools and technologies to optimize operational efficiencies and maximize economic benefits from its own internal computing ecosystems, as well as those it manages for its clients. The Customer selected the Rackwise ® suite of DCiM™ product and service offerings for its comprehensive decision support tools, its open architecture incorporating standard data connectors to industry leading configuration management database and change management systems, and its superior features and functionalities, including asset tracking and utilization, energy management and optimization, virtualization, reporting, modeling, and advanced analytics and metrics. The Customer plans to implement Rackwise ® DCiM™ solutions in all of its own data centers and will also make the offering available to its outsourced data center clients worldwide. Guy A. Archbold, Rackwise, Inc. President and Chief Executive Officer, commented, “Following our selection in late 2011 by a Fortune 50 leader in worldwide IT and computing innovation, this announcement marks a second major win with a significant global IT company in a highly competitive environment. Our Rackwise ® solution was tested and compared to a significant number of our most notable competitors for an extended period of time in the Customer’s laboratory and test center. This award thus further validates our leadership position among providers of data center infrastructure management solutions and demonstrates our success in establishing Rackwise ® offerings as solutions of choice among data center managers, information officers and other information technology professionals. We are extremely pleased and proud that our DCiM™ suite of product and service offerings was selected as a key component of the Customer’s current and planned strategies to assure reliability, discover hidden capacity, and enable efficiency in managing its global network of data centers and IT infrastructure as well as those of its clients and customers around the world.” About Rackwise, Inc. Rackwise, Inc. (OTCBB: RACK.OB) is a leader in software development and marketing within the growing markets for IT infrastructure tracking, monitoring, modeling, and management. The Company’s suite of DCiM™ product and service offerings enables clients to effectively manage today’s high density computing configurations and virtualized data centers while mitigating the risks associated with cascading faults within the infrastructure. Rackwise ® solutions integrate device level, real-time monitoring with advanced modeling, reporting, analytics and other critical features and functionalities, providing users with robust, state-of-the-art platforms to responsibly optimize operations and maximize cost efficiencies of their IT infrastructures, and progress toward achieving sustainable green data centers. Its branded Rackwise ® Products and Services, DCiM™ Solutions, are used by over 150 companies worldwide. For more information, visit www.rackwise.com or call 888.818.2385. Rackwise ®, DCM 3.6™ and DCiM™ are trademarks of Rackwise, Inc. Other designated trademarks and brands mentioned herein are the property of their respective owners.Safe Harbor StatementAny statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Any forward-looking statements contained herein are based on current expectations, but are subject to a number of risks and uncertainties. The factors that could cause actual future results to differ materially from current expectations include, but are not limited to, risks and uncertainties relating to the availability of additional funding; and the Company's business, product development, marketing and distribution plans and strategies. These and other factors are identified and described in more detail in the Company's filings with the SEC, including, the Company's current reports on Form 8-K. The Company does not undertake to update these forward-looking statements.