In the public sector, Sobel has served as a planning commissioner and vice mayor of Petaluma, California, and been a candidate for the California State Assembly. Brian is past chairman of the Sonoma County Transportation Authority and is currently a member and past president of the 4th Agricultural District, appointed by the Governor of California. Sobel is also a member of the Golden Gate Bridge, Highway and Transportation District Board of Directors.
His non-profit services include duties as president of the Board of Directors of Northbay Ecumenical Homes and a corporate officer and trustee of the Cedars Foundation of Ross. Sobel is also past-president of the Board of Directors of the Petaluma Area Chamber of Commerce and is currently a director of the Bank of Marin, headquartered in Novato, California.
Sobel is the author of two books and numerous articles that have appeared in national publications including The Wall Street Journal and others. Specializing in military history, Sobel has contributed to a variety of military magazines and has often appeared on radio and television discussing military, historic and current affairs, including numerous appearances on the History Channel. Additionally, Sobel frequently comments on radio and television concerning national and regional politics.
Sobel helped lead the Pacifics’ efforts to gain San Rafael City Council approval for the team’s use of Albert Park during the team's inception in 2012.