Cardinal Bank To Sponsor Metropolitan Washington Economic Index.

Dr. Stephen Fuller Named Chief Economist

TYSONS CORNER, Va. -- Cardinal Bank (NASDAQ:CFNL) is pleased to announce its sponsorship of the Metropolitan Washington Economic Index, which examines the current and near-term performance of the local economy. The Index is prepared monthly by the George Mason University Center for Regional Analysis. In its role as sponsor, Cardinal is providing a resource for businesses, local governments, educational institutions, and others in the public and private sectors with an interest in the current status and future direction of the local economy.

In a related announcement, Cardinal Bank has named Dr. Stephen Fuller as the bank's new Chief Economist. As University Professor and Director of the Center for Regional Analysis, School of Public Policy at George Mason University, Dr. Fuller is uniquely qualified to oversee the Economic Index. He has more than 25 years' experience in tracking and reporting on the Washington area's economy, and is also the Dwight Schar Faculty Chair at GMU.

"We are very proud to sponsor the Cardinal Bank Metropolitan Washington Economic Index, and to welcome Dr. Fuller as our Chief Economist," said Bernard H. Clineburg, Chairman and CEO of Cardinal Bank. "We believe this sponsorship will provide a continuing, vital resource to all those interested in the region's economy, and will help businesses and governments in their planning and policy decisions."

In the July report, Dr. Fuller noted, "the Economic Index found that the Washington metropolitan area is still generating net new jobs at an above-projected rate. For the May-to-May period, the Washington area added 53,200 jobs. The number of area residents who held jobs in May also increased, rising 38,200 from May 2006. These new resident workers reflect population growth and increased labor force participation rates." A link to the Cardinal Bank Metropolitan Washington Economic Index can be found on the Cardinal Bank website: www.cardinalbank.com.

Continuing its close collaboration with George Mason University, Cardinal Bank will again sponsor the annual Cardinal Bank/George Mason University Conference for the Greater Washington Area Economy. The event will be held on January 11, 2008 at the McLean Hilton. Further details concerning the conference will be available later this year.

About Cardinal Financial Corporation

Cardinal Financial Corporation, a financial holding company headquartered in Tysons Corner, Virginia with assets of $1.720 billion at March 31, 2007, serves the Washington Metropolitan region through its wholly owned subsidiary, Cardinal Bank. Cardinal also operates George Mason Mortgage, LLC; Cardinal Trust and Investment Services, a $6.1 billion trust division; and Wilson/Bennett Capital Management, Inc. The Company's stock is traded on NASDAQ (CFNL). For additional information, please visit our Web site at www.cardinalbank.com or call [phone].