Willdan Group, Inc. (“Willdan”) (NASDAQ:WLDN), today announced the planned date for its third quarter 2009 financial results and conference call. On Thursday, November 12, 2009, after market close, Willdan plans to announce its third quarter 2009 financial results. Following the announcement, Chief Executive Officer Thomas Brisbin and Chief Financial Officer Kimberly Gant plan to host a conference call at 5:00 p.m. Eastern / 2:00 p.m. Pacific on the same day, to further discuss the Company’s financial results and business development activities.

Interested parties may participate in the conference call by dialing 877-941-8609 (480-629-9818 for international callers). When prompted, ask for the “Willdan Group 3rd Quarter 2009 Investor Call.” The conference call will be webcast simultaneously on Willdan’s Web site at www.willdan.com under Investors: Events.

The telephonic replay of the conference call may be accessed approximately two hours after the call through November 26, 2009, by dialing 800-406-7325 (303-590-3030 for international callers). The replay access code is 4179044#. The webcast replay will be archived for 12 months.

About Willdan Group, Inc.

Founded over 40 years ago, Willdan Group, Inc. is a leading provider of outsourced and consulting services to public and private agencies and utilities located primarily in California and other western states. Willdan Group, Inc. assists cities and other government agencies and, to a lesser extent, private industry and public utilities with a broad range of services, including civil engineering, building and safety services, geotechnical engineering, energy efficiency, water conservation, renewable resource strategy, financial and economic consulting, and disaster preparedness and homeland security. For additional information visit Willdan’s Web site at www.willdan.com

Forward-Looking Statements

Any statements made in this release that are not based on historical fact are forward-looking statements. Any forward-looking statements made in this release represent management’s best judgment as to what may occur in the future. However, Willdan Group, Inc.’s actual outcome and results are not guaranteed and are subject to certain risks, uncertainties and assumptions, and may differ materially from what is expressed. For a description of factors that could cause actual results to differ materially from such forward-looking statements, see the discussion under the section “Risk Factors” included in the Company’s Form 10-K filing with the Securities and Exchange Commission.