6 Sonoma Valley organizations make top 100 nonprofits list

A giving community

Sonoma County is home to more than 3,100 registered nonprofit agencies and not-for-profit organizations that reported about $2 billion in annual revenue, according to data compiled by GuideStar and the Economic Research Institute, using the most recently available tax forms.

A new ranking released by the Press Democrat uncovered surprising data about some of Sonoma Valley’s better- and lesser-known nonprofits.

Near the top of the list is a nonprofit that many Sonomans have likely never heard of. The Valley’s single largest 501c3 is Plastic Recycling Corporation of California, which since 1987 has been working to increase public awareness and the recycling rates for polyethylene terephthalate (PET) beverage containers.

While the county list is topped by Redwood Credit Union and the Community Foundation Sonoma County, other top Valley entries range from health care and human services to education, arts and culture.

In reviewing the list, Sonoma-based philanthropy consultant and Sonoma Valley Fund Board member Katherine Fulton pointed out that the data includes foundations as well as operating nonprofits, for whom the numbers mean completely different things.

“I spent several months in 2017, with some other volunteers, trying to make a list like this for Sonoma Valley, and we quickly found out that the data is full of apples, oranges and peanuts that makes comparisons very difficult,” she said. “But a list like this is useful for seeing the amazing range — and the scale — of the efforts underway here to help address poverty, to help elders and children, to provide health care, to entertain us and show us beauty and so much more. It’s heart-warming and so important.”

The following are the largest nonprofits and not-for-profit organizations operating out of headquarters in Sonoma Valley, ranked in order of annual gross receipts reported in their most recent tax filing. The IRS defines "gross receipts" as "the total amounts the organization received from all sources during its annual accounting period, without subtracting any costs or expenses."

This list was created using GuideStar and the Economic Research Institute data, based on the most recently available tax forms ― in most, but not all, cases the nonprofit’s 2019 return.


Sonoma Valley’s Top 6

7. Plastic Recycling Corporation of California: $36.6 million. Develops programs and policies for the reclamation and recycling of polyethylene terephthalate beverage containers. 935-1997,

29. Sonoma Valley Hospital Foundation: $15.8 million. Cultivates community support and raises funds for Sonoma Valley Hospital. 935-5070,

38. Sonoma Valley Community Health Center: $13.3 million. Health care for those in need, especially the underserved of Sonoma Valley. 939-6070,

73. Transcendence Theater Company: $5.1 million. Performing arts organization. 877-424-1414,

88. La Luz Center: $3.9 million. Assistance for recent immigrants in the Sonoma Valley. 938-5131,

100. Presentation School: $3 million. Private primary school. 935-0122,


Another 100 nonprofit organizations serving the community in Sonoma County had revenue exceeding $1 million in their most recent annual report, Sonoma Valley’s entries include:

Rebuild NorthBay Foundation: $2.8 million. Supports efforts to rebuild the North Bay better, safer, greener, faster. 938-7624,

Clark Janis Foundation: Glen Ellen, $2.8 million. Contributions to a variety of community organizations. 757-622-3366

Pets Lifeline Inc: $2.8 million. Protecting and improving the lives of cats and dogs in the Sonoma Valley through sheltering, adoption, humane education, and community programs. 996-4577,

Sonoma Valley Museum of Art: $2.7 million. Art museum and educational programs. 939-7862,

Boys & Girls Clubs of Sonoma Valley: $2.7 million. Provides positive opportunities for youth to learn and succeed. 938-8603,

Sonoma Ecology Center: Eldridge, $2.5 million. Works with the community to enhance and sustain ecological health in Sonoma Valley. 996-0712,

Woodland Star Charter School: $2.5 million. Primary charter school. 996-3849,

Sonoma Charter School Inc: $2.1 million. Charter school. 935-4232,

The Mental Insight Foundation: $2 million. Mental health foundation. 938-8248

Vadasz Family Foundation: $1.9 million. Private grantmaking foundation. 938-3014

Sonoma Valley Education Foundation: $1.7 million. Primary fundraising and volunteer resource for the Sonoma Valley Unified School District. 935-9566,

Valley of the Moon Natural History Association: Glen Ellen, $1.5 million. Preserves the historic and natural beauty of the park while creating innovative opportunities for recreation, education and enjoyment. 938-5216,

Sonoma Valley Visitors Bureau: $1.4 million. Promotes public awareness of Sonoma Valley. 996-1090,

Sweetwater Spectrum: $1.3 million. Continuing care facility for adults with autism. 996-3104,

Sonoma Valley Mentoring Alliance: $1.2 million. Pairs caring adults with children in need of social or emotional support so that they may flourish in school and in life. 996-6843,

Frank H. Bartholomew Foundation: $1.1 million. Owns and operates Bartholomew Park, the historic site and vineyards established by Count Agoston Haraszthy. 938-2244,

Sonoma Community Center: $1.1 million. Enriches the lives of the people of Sonoma Valley by fostering a broad range of cultural, educational, recreational and community services in an affordable space as well as helping to preserve and restore our historic buildings. 938-4626,

Little People of America, Inc.: $1.1 million. Support group for short-statured individuals. 888-572-2001,


This article is based on data compiled by Mary Fricker for the Press Democrat, where the list appeared in full on Jan. 31, 2021.

A giving community

Sonoma County is home to more than 3,100 registered nonprofit agencies and not-for-profit organizations that reported about $2 billion in annual revenue, according to data compiled by GuideStar and the Economic Research Institute, using the most recently available tax forms.

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