Photo: Midpeninsula Regional Open Space District

Members & Supporters

Our organizational members and supporters – nonprofits and public agencies – protect and steward the land and connect people to that land.


The Open Space Council exists to share ideas, forge partnerships, and create a shared vision for the San Francisco Bay Area’s parks, trails, open spaces, and working lands. We are coalition of organizations – nonprofits as well as city, county, regional, state and federal public agencies – involved in conserving, stewarding, and promoting those places.


Members are organizations and agencies who acquire, manage and provide resources to land.


Supporters are nonprofit organizations who provide services to, connect people to, advocate for and otherwise support the protection of land.

 “The Open Space Council inspires and incubates progressive ideas in its members through its gatherings, and helps give a common voice to conservation around the Bay Area through its coordination of marketing and lobbying.”

Join Online

Dues are a sliding scale from $250 to $5,000 based on your organization’s or agency’s annual operational budget.

Benefits of Membership

Member Photo Strip



  • Stay on top of hot topics and connect with peers
  • Complimentary Gathering attendance (held 4x/year) for Board and staff
  • Discounted annual Open Space Conference tickets for Board and staff



  • Your job listings on our website reaching 1000s of people
  • Social media campaigns about you and our members with 100k+ impressions
  • Stories about your work featured on our blog
  • Listing in Open Space Conference program and on our website



  • A large and diverse constituency for your work with Outdoor Voice
  • Active advocacy for regional conservation funding
  • Regional vision and practical tool for protecting biodiversity with Conservation Lands Network
  • One year subscription to Bay Nature magazine


Become a Member Now

Your dues enable us to be a central hub of information, resources, and connections. Thank you!


Learn more:

Sarah Noel Ross, Community Engagement Manager
(510) 809-8009 ext. 258
[email protected]


Alameda County Resource Conservation District

Amah Mutsun Land Trust

Bay Area Ridge Trail Council

Brentwood Agricultural Land Trust

California Rangeland Trust

California State Coastal Conservancy

California State Parks

City of American Canyon

City of San Francisco

City of San Jose

City of San Ramon

City of Walnut Creek

Claremont Canyon Conservancy

Coastside Land Trust

East Bay Regional Park District

East Contra Costa County Habitat Conservancy

Golden Gate National Parks Conservancy

Jasper Ridge Biological Preserve, Stanford University

John Muir Land Trust

Land Trust of Napa County

Land Trust of Santa Cruz County


Livermore Area Recreation and Park District

Mare Island Heritage Trust

Marin Agricultural Land Trust

Marin County Parks

Marin Municipal Water District

Marin Open Space Trust

Midpeninsula Regional Open Space District

Napa County Regional Park and Open Space District

Pacifica Land Trust

Peninsula Open Space Trust

Pepperwood Preserve

Resource Conservation District of Santa Cruz County

San Francisco Bay Trail Project

San Francisco Public Utilities Commission

San Mateo County Parks

San Mateo County Resource Conservation District

Santa Clara County Open Space Authority

Santa Clara County Parks

Santa Clara Valley Habitat Agency

Santa Clara Valley Water District

Save Mount Diablo

Save the Redwoods League

Sempervirens Fund

Silicon Valley Land Conservancy

Solano Land Trust

Solano Open Space

Sonoma County Agricultural Preservation and Open Space District

Sonoma County Regional Parks

Sonoma County Water Agency

Sonoma Land Trust

Sonoma Resource Conservation District

The Nature Conservancy

Tri-Valley Conservancy

Trust for Public Land

U.S. National Park Service


Show that you are a part of something big by putting a Open Space Council button on your website.

OSC Button_verticalOSC Button_horizontal


Thank you, Members and Supporters!

Every fall we invite organizations and agencies to renew their membership or join our growing coalition. We’d like to share our gratitude from the roof tops but there isn’t one high enough in the Bay Area from where everyone could hear us. So we go to the internet. Check out our great members and supporters and get engaged with their work. They’re doing some important stuff.



In 2015 we shared postcards across social media showing our members and supporters make the Bay Area GREAT! Check out #BayAreaOpenSpace, and see them all on Facebook and Flickr.



In 2014 we thanked our members with Quiz Shows on Fridays. Check out #OSCQuizFridays on Twitter and Instagram. See them all on Flickr.



In 2013 we were all over the Bay Area map thanking our members and supporters. Find our gratitude on Flickr and Instagram.



In 2012 we used pictures and words to thank our members with Fotobabble.



In 2011 we had fun with pictures, all of which you can see on Flickr.

From the blog