Bank of Marin President and CEO Robert Griswold to Retire June 30; Bank Also Names Russell A. Colombo as Successor to Griswold.

CORTE MADERA, Calif. -- The Bank of Marin (NASDAQ:BMRC) Board of Directors has announced the retirement of Robert Griswold from his position as President and CEO, effective June 30, 2006. Griswold steps down from the position after serving with the Bank of Marin since its founding in 1989, when he was named Executive Vice President and Chief Operating Officer. The Bank's Board also announced that Russell A. Colombo, Bank of Marin's Executive Vice President and Chief Operating Officer, will assume the duties of President and CEO, effective July 1, 2006.

"This is something I've been discussing with our Board of Directors over the past year," said Griswold. "We've come a long way since our humble beginnings in 1989 and I'm extremely proud of the legacy of which I've been a part. Our growth has been phenomenal, our performance superb and we have assembled one of the finest teams in banking. I leave with tremendous pride in what we've accomplished and the vital role we play in our Marin and southern Sonoma County communities."

"Bob is clearly one of the top business and community leaders in all of Marin," said Judith O'Connell Allen, Chairman of the Board. "Through his vision and outstanding leadership, we have posted consistent record earnings, grown in size and scope and expanded our customer base and product offerings, while at the same time intensifying our community support and involvement. We are deeply appreciative of all he has done."

"Russ is already a highly valued member of our team," continued Allen. "Over the past few years, the Board of Directors and the CEO have been addressing Succession Planning and have in fact dedicated considerable time to attracting, hiring and retaining strong, well qualified Senior Executives. We feel confident that we have positioned the bank to address this change with a positive, supportive attitude and with the right person in place. He is a respected and accomplished banker whose influence has already been felt throughout the bank."

"I am honored to be chosen for this challenging role," said Colombo. "While Bob will be a tough act to follow, I look forward to continuing to work alongside him over the next several months to insure a seamless transition. Along with our dedicated and professional staff, we will continue to focus on balancing strong business growth with improved financial performance and deepening our roots in our various communities."

Griswold served as Executive Vice President and Chief Operating Officer for Bank of Marin from 1989 to January 1995, when he was named President. In January 1998, he was elected to also serve as CEO. Under Griswold's stewardship, the Bank of Marin has grown to a ten-office financial institution, recording double digit earnings growth in every quarter of its 15-year history. He is past-chairman of the Board of Directors of the North Bay Council, a director of the California Film Institute, a director of the San Francisco Yacht Club, a director of the Marin Workforce Housing Trust, a director and executive committee member of the Marin County School to Career Partnership Board and chairman of the Buck Institute Business Council. He has resided in Marin County for more than 30 years.

Colombo joined Bank of Marin in March 2004 as Executive Vice President and Branch Administrator and was elevated to the position of Executive Vice President, Chief Operating Officer in 2005. Prior to joining Bank of Marin, Colombo had amassed 29 years of banking experience, and served as senior vice president and group manager in the San Francisco office of Comerica Bank for six years. Prior to Comerica, he served in various capacities for Union Bank of California for 19 years, most recently as Senior Vice President and Regional Manager. Colombo holds a BS in Agricultural Economics & Business Management from University of California, Davis and an MBA in Banking & Finance from Golden Gate University. He serves on the Board of Hanna Boys Center. He and his family reside in San Rafael.

Bank of Marin has ten offices with locations in Strawberry, Corte Madera, downtown San Rafael, Andersen Drive in San Rafael, Northgate, Ignacio, downtown Novato, Sausalito and two offices in Petaluma. The bank's third branch in Petaluma is scheduled to open before month's end. The Bank's Wealth Management Services are located at the Corte Madera location.