MARIMBA PROMOTES SIMON WYNN to CHIEF TECHNOLOGY OFFICER Submitted By: Axicom Monday, 30 April 2001

MARIMBA PROMOTES SIMON WYNN TO CHIEF TECHNOLOGY OFFICER Submitted by: AxiCom Monday, 30 April 2001

Arthur van Hoff to Head Newly-Formed Marimba Advanced Development Laboratory to Promote Technology Innovation Marimba, Inc, a leading provider of systems management solutions built for e-business, today announced the appointment of Simon Wynn to the post of chief technology officer (CTO), reporting directly to Marimba president and CEO, John Olsen. Mr. Wynn assumes the position from Arthur van Hoff, a co-founder of Marimba. Van Hoff, along with senior engineers and fellow co-founders, Sami Shaio and Jonathan Payne, will be part of Marimba's newly-formed Advanced Development Laboratory, and van Hoff will continue to report directly to Olsen. This distinguished team of engineers will focus on technology innovation designed to bring new, leading-edge products to market quickly. Van Hoff, Shaio and Payne are well known as original members of the Sun Microsystems Java team. As CTO, Wynn will be responsible for all technical aspects of Marimba's product vision, including software development, product deployment, strategic planning, new business opportunity assessment, as well as industry standards. "I am pleased to announce the promotion of Simon Wynn to the position of CTO, and we welcome him as a member of our executive team," said Olsen. "This appointment acknowledges Simon's past contributions and reflects his leadership role within the company. Simon has been instrumental in helping to secure Marimba's leadership position in the systems management market." Wynn previously held consecutive positions of director of engineering, engineering manager, and staff software engineer. Prior to Marimba, Wynn served as a member of the senior technical staff at Oracle Corporation. Earlier, he was project engineer and product development engineer at Dolby Laboratories, Inc. Wynn holds a B.S. in Electronics and Communications Engineering from the University of North London, United Kingdom. Van Hoff said, "Simon's broad experience, solid technology background, and business acumen will serve Marimba and its customers well. I look forward to focusing on the Advanced Development Laboratory and, along with Sami and Jonathan, providing vision for next-generation technologies and services." About Marimba Headquartered in Mountain View, Calif., Marimba, Inc. provides systems

Page 1 management solutions built for e-business. From change management to performance management software, Marimba's extensive Internet expertise allows Global 2000 companies to better manage their resources, increase efficiency and reduce costs. For more information, please call +44 118 949 7060, or visit our web site at www.marimba.com. -ends- This press release contains forward-looking information within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, and is subject to the safe harbors created by these sections. These forward-looking statements concern, among other things, the ability of the Advance Development Laboratory to provide vision for Marimba's next-generation technologies and services, as well as its ability to focus on technology innovation designed to bring new, leading-edge Marimba products to market quickly. Those results are subject to a number of risks and uncertainties, including without limitation, the performance of the executives mentioned above and the development and hiring challenges that Marimba is likely to face; and the possible changes in the roles and focus of members of Marimba's management. Actual results may differ materially due to these and other factors. The matters discussed in this press release also involve risks and uncertainties described from time to time in Marimba's filings with the Securities and Exchange Commission (SEC). In particular, see the Risk Factors described in Marimba's most recently filed Annual Report on Form 10-K and Quarterly Report on Form 10-Q, each as submitted to the SEC and as may be updated and amended with future filings or submissions. Marimba undertakes no obligation to release publicly any updates or revisions to any forward-looking statements contained in this press release that may reflect events or circumstances occurring after the date of this press release. Marimba is a registered trademark of Marimba, Inc. in the U.S. and/or certain other countries. Other product, trademark, company or service names mentioned herein are the property of their respective owners. Victoria Bartolome AxiCom UK Direct: +44 (0)20 8600 4659 Email: [email protected] Cambridge House, Cambridge Grove, London W6 0LE T: +44 (0)20 8600 4600 F: +44 (0)20 8600 4620

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