| Year | Chair | Association |
| 1965-66 | Ted Harpainter | |
| 1967 | Mickey Hoag | |
| 1968 | Bill Owen | |
| 1969 | Pasco Balzarini | |
| 1970 | Lionel McCormick | |
| 1971 | Dave Cox | |
| 1972 | Manual Pagan | |
| 1973 | Scott Essen | |
| 1974 | Jim Sugai | Town of Los Gatos |
| 1975 | George Litton | City of Union City |
| 1976 | Dan Freitas | City of Livermore |
| 1977 | John Chamberlain | City of Walnut Creek |
| 1978 | Roy Swanson | City of Saratoga |
| 1979 | John Hoffman | City of Burlingame |
| 1980 | Tony Acosta | City of Oakland |
| 1981 | Rich Langevin | City of Newark |
| 1982 | Rich Quadri | City of Burlingame |
| 1983 | Herb Fong | Stanford University |
| 1984 | Leo Levesque | City of Fremont |
| 1985 | Harold Jones | City of Petaluma |
| 1986 | Rick Sealana | City of Union City |
| 1987 | Phil Evans | San Francisco State University |
| 1988 | Dean Nisson | |
| 1989 | Ken DeSilva | City of Antioch |
| 1990 | Darrell Ledford | City of Livermore |
| 1991 | Deborah Ellis, M.S. | Consulting Arborist & Horticulturalist |
| 1992 | Phil Evans | San Francisco State University |
| 1994 | John Mendoza | City of Santa Clara |
| 1995 | Ken De Silva | City of Pleasanton |
| 1996 | Jim Connor (till 8/96) | |
| | Jim Brandenburg | City of Livermore |
| 1997 | Jim Brandenburg | City of Livermore |
| 1998 | Bill Gardner | City of Hayward |
| 1999 | Larry Laquinto | City of Sunnyvale |
| | John Laquinto | City of Los Gatos |
| 2000 | Gordon Mann | City of Redwood City |
| 2001 | Ed Murdock | City of Livermore |
| 2002 | Eric Willyerd | City of Hayward |
| 2003 | Jack Kincaid | Repcor Inc. |
| 2004 | Michael Santos | HortScience Inc. |
| 2005 | Carol Randisi | City of Milpitas |
| 2006 | Ray Morneau | Mountain View |
| 2007 | Dorothy Abeyta | City of San Jose |
| 2008 | Chris Hughes | PG&E |
| 2009 | Stephen Pree | UC Berkeley RSSP Grounds |
| 2010 | Carol Randisi | HortScience, Inc |
| | Ken De Silva | MCE/City of Dublin |
| 2011 | Deanne Ecklund | City of Palo Alto/HortScience, Inc |
| | Igor Lacan | University of California |
| 2012 | Elizabeth Lanham | City of San Jose |
| | John Leffingwell | HortScience, Inc |
| 2013 | | |
| 2014 | Nelson Kirk | City of Union City |
| | | City of San Jose |
| 2015 | Jennifer Tso | Traverso Tree Service |
| | Maryellen Bell | Irvine Company |
| 2016 | Jennifer Tso | Traverso Tree Service |
| | Rich Langevin | |
