The Corporate Executive Board Expands and Strengthens Its Leadership Team.

WASHINGTON -- The Corporate Executive Board Company (CEB) (NASDAQ/NM:EXBD) today announced two senior management additions and additional responsibilities for a member of its leadership team.

CEB announced that Melody Jones has joined the firm as Chief Human Resources Officer. Ms. Jones will serve on the Executive Committee and report directly to the CEO. Prior to joining CEB, Ms. Jones served as the global head of Human Resources for T. Rowe Price. Before assuming that position, she held the CHRO position at Aon Corporation. Ms. Jones has also worked in senior consulting positions with both Aon Consulting and Organizational Dynamics, Inc., and has held leadership positions at Citicorp Mortgage. Tom Monahan, CEO of The Corporate Executive Board, commented, "CEB's growth demands continued investments in talent, both from within and outside the firm. I am excited about the outstanding experience Melody brings to us in leading Human Resources at global 'ideas' businesses. As a senior executive and a long-time member of CEB programs, her view of how to scale talent in a growth company will be a tremendous asset for CEB."

CEB also announced that Mikel Durham, former President of Global Supply Chain at Cadbury Schweppes, has joined the firm as Executive Director for CEB's Operations and Procurement Practice. Ms. Durham will assume management, growth and thought leadership responsibility for the Practice, which serves heads of procurement, supply chain management and operations executives at leading enterprises worldwide. Prior to Cadbury Schweppes, Ms. Durham has held executive positions at Diageo's Guinness Ltd. and Burger King North America units, as well as at Tricon Global Restaurants. Mr. Monahan noted, "Mikel brings a combination of insight, global business management and people leadership skills essential to driving CEB's continued growth. Her thought leadership capacity, experience as a senior executive and insight into our products as a former member of CEB programs will be invaluable in growing our Operations and Procurement Practice."

In addition, CEB noted that Mike Archer, previously CEB's Chief Marketing Officer, had been promoted to President, Marketing and International earlier in 2005. In this new role, Mr. Archer will direct strategy and execution across CEB's international operations, in addition to continuing to lead CEB's Marketing and Member Services organizations. Mr. Monahan commented, "Given Mike's successes in leading our global Marketing and Member Services organizations, we are excited about the expansion of his role to include responsibility for meeting the needs of our growing international member network. Mike's ability to ensure

that our product and service strategy continues to generate immediate, demonstrable ROI for our members in now more than 45 countries is a vital element of CEB's long-term growth."

Mr. Monahan concluded, "Mikel and Melody's appointments are continuing evidence of our commitment to building a team capable of leading CEB as it executes against a $5 billion organic growth opportunity. And Mike's elevation is the most notable example of CEB's existing leadership team stepping up to take on broader responsibility as we execute against that opportunity."

FORWARD-LOOKING STATEMENTS

This news release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You are hereby cautioned that these statements may be affected by the important factors, among others, set forth below and in CEB's filings with the U.S. Securities and Exchange Commission, and consequently, actual operations and results may differ materially from the results discussed in the forward-looking statements. Factors that could cause actual results to differ materially from those indicated by forward-looking statements include, among others, our dependence on renewals of our membership-based services, difficulties we may experience in anticipating market trends, our need to attract and retain a significant number of highly skilled employees, fluctuations in operating results, our potential inability to protect our intellectual property rights, our potential exposure to loss of revenue resulting from our unconditional service guarantee, various factors that could affect our estimated income tax rate or our ability to use our existing deferred tax assets, whether the Washington, D.C. Office of Tax and Revenue withdraws our QHTC status and possible volatility of our stock price. These and other factors are discussed more fully in the "Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Risk Factors" sections of CEB's filings with the U.S. Securities and Exchange Commission, including, but not limited to, its 2004 Annual Report on Form 10-K. The forward-looking statements in this press release are made as of March 9, 2006 and we undertake no obligation to update any forward-looking statements, whether as a result of new information, future events, or otherwise.

The Corporate Executive Board Company is a leading provider of best practices research and analysis focusing on corporate strategy, operations and general management issues. CEB provides its integrated set of services currently to more than 2,300 of the world's largest and most prestigious corporations, including over 80% of the Fortune 500. These services are provided primarily on an annual subscription basis and include best practices research studies, executive education seminars, customized research briefs and Web-based access to a library of over 275,000 corporate best practices.