Arnold Worldwide Renews with CenterStone for Occupancy Management 
Global Advertising Agency Uses eCenterOne Integrated Workplace Management Solution

HOPKINTON, MA - February 21, 2006 -- CenterStone Software, Inc., the leading provider of Web-based Integrated Workplace Management Solutions (IWMS), today announced that Arnold Worldwide, an integrated advertising agency with headquarters in Boston and regional offices across the United States, has signed a renewal agreement to continue managing its occupancy with CenterStone's eCenterOne solution.
 
Arnold has used eCenterOne since 2003 to manage key workplace business processes and information in areas such as space planning and management for its 700 employees and 200,000 square-foot portfolio at its global headquarters in Boston, MA. Because of its account- and project-oriented business, Arnold manages a dynamic portfolio and regularly needs to update information on space, personnel and moves for planning and reporting.

"The combination of CenterStone's strong service offerings and the easy-to-use capabilities of eCenterOne gives Arnold Worldwide immediate, real-time visibility into our portfolio," said Kimberly Funk, Facilities Supervisor for Arnold Worldwide. "We know how much space we have and how it is being used, and can engage in comprehensive portfolio planning to manage occupancy costs and accommodate our future needs in the most efficient manner possible."

More than 50 organizations of all sizes, including AIG, Dell, Juniper Networks and sanofi-aventis, rely on CenterStone to help them save millions of dollars in occupancy costs every year by automating critical workplace business processes and information, improving portfolio visibility and gaining a better understanding of the financial and operational impact of multi-million dollar business decisions.

"Arnold Worldwide demonstrates the value of being able to manage occupancy in today's fast-paced, fast-changing workplace. With a more accurate, timely and complete view of space, people, assets and obligations, organizations can make more informed, data-driven decisions about the workplace and be fully prepared to manage growth and change," said Andrew Sherman, President and CEO of CenterStone Software.

About Arnold Worldwide

Arnold Worldwide is the headquarters of Arnold Worldwide Partners, a global network owned by Havas. Arnold Worldwide represents one of the lead agencies in the system, with five fully integrated service offices in the U.S.: the Boston headquarters, New York, Washington, D.C., St. Louis and Los Angeles as well as five additional service offices. Globally, Arnold Worldwide Partners consists of 18 offices in 8 countries, which include the five full-service U.S. operations. Arnold Worldwide is one of the most highly awarded agencies in the world, with a client roster that includes well-recognized brands like American Legacy Foundation's truth®, Vonage, Royal Caribbean, McDonald's, Fidelity Investments, Hershey's, RadioShack and Jack Daniels. It has received the Grand Prix at the International Festival in Cannes, top honors at the International ANDY Awards, and been a consistent annual winner of Clios, EFFIEs, Obies and One Show awards. www.arnoldworldwide.com

About CenterStone Software, Inc.

CenterStone Software helps many of the world's largest organizations to manage their space, facilities, personnel, assets, leases and workplace operations more efficiently, strengthen executive planning and decision-making, optimize portfolio utilization and save millions of dollars in occupancy costs every year. Market leaders such as AIG, Dell, EMC, Network Appliance and sanofi-aventis are using CenterStone's Web-based eCenterOne solution to automate workplace processes such as space planning, corporate moves, employee on-boarding, allocations and chargebacks and work orders. As a pioneer in the growing Integrated Workplace Management Systems (IWMS) market, CenterStone was founded in 1999. The company is headquartered in Hopkinton, MA and has its sales and services office in Hayward, CA, Seattle, WA, Washington, DC and Chicago, IL. For more information, please call (508) 435-1510 or visit www.centerstonesoft.com.

CenterStone and eCenterOne are trademarks of CenterStone Software, Inc. All other logos, company and product names may be trademarks or registered trademarks of their respective owners.

Contact:

CenterStone Software, Inc.
John Gill, 508-435-1510, ext. 125
jgill@centerstonesoft.com