For Immediate Release

Synplicity Executives to Speak at Seventh Annual Needham Growth Conference

SUNNYVALE, Calif., January 3, 2005 — Synplicity Inc. (Nasdaq: SYNP), a leading supplier of software for the design and verification of semiconductors, today announced that Gary Meyers, president and CEO, and Doug Miller, sr. vice president of finance and CFO of Synplicity Inc., will be featured speakers at the Seventh Annual Needham Growth Conference at the New York Palace Hotel in New York on January 11, 2005.

A webcast of the presentation will be available on the investor relations page of Synplicity’s Web site at http://www.synplicity.com on Tuesday, January 11 th at 4:00pm ET. A replay of the presentation will be available for 30 days following the presentation.

About Synplicity
Synplicity® Inc. (Nasdaq: SYNP) is a leading supplier of innovative synthesis, verification and physical implementation software solutions that enable the rapid and effective design and verification of semiconductors. Synplicity’s high-quality, high-performance tools significantly reduce costs and time-to-market for FPGA, structured/platform ASIC and cell-based/COT ASIC designers. The company’s underlying Behavior Extracting Synthesis Technology® (BEST™), which is embedded in its logical, physical and verification tools, and has led to Synplicity’s top position in FPGA synthesis, now provides the same fast runtimes and quality of results to ASIC and COT customers. The company’s fast, easy-to-use products support industry standard design languages (VHDL and Verilog) and run on popular platforms. Synplicity employs over 280 people in its 20 facilities worldwide. Synplicity is headquartered in Sunnyvale, California. For more information visit http://www.synplicity.com.

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Synplicity and Behavior Extracting Synthesis Technology are registered trademarks of Synplicity Inc. BEST is a trademark of Synplicity Inc. All other names mentioned herein are the trademarks or registered trademarks of their owners.

Synplicity Contact:
Doug Mill
Synplicity, Inc.
408-215-6000
ir@synplicity.com

Synplicity PR Contact:
Steve Gabriel
Porter Novelli
408-369-1500 x627
steve.Gabriel@porternovelli.com