Board of Directors

The SF Bicycle Coalition is governed by a volunteer Board of Directors. The board is responsible for the organization’s financial health and achievement of its mission. Any SF Bicycle Coalition member can run for the board. Members are invited to attend board meetings. Check out our Events Calendar for meeting dates and times, and download meeting minutes from our archive. To submit questions or comments to the board, please email

Marie Jonas

Marie Jonas, President

Marie Jonas brings to the board her love of riding and commitment to justice and community-building. Marie is an attorney with Folger Levin, where she represents nonprofits, businesses and individuals on a wide range of issues. She also volunteers her skills to represent children in immigration proceedings and advocates for various political causes, currently with the nonprofit Sister District Project, where she specializes in voter engagement. As an avid bike commuter and recreational cyclist, Marie is devoted to sharing the joy of riding and to transforming our city so that everyone in San Francisco feels welcome to ride a bike.

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Sarah Barnes, Secretary

Sarah is a deeply optimistic individual working on the future of urban mobility, and in particular cycling and bikeshare. She has worked in bikeshare internationally, and published transportation research with the UN, Siemens, LSE Cities and more. Sarah also shares her thoughts on the future of transport in a weekly transportation + technology newsletter, Along for the Ride. You can usually find Sarah exploring San Francisco with her bikes, Mildred and Stella. When she’s not thinking about transportation, she loves to read about art history with a cup of tea, go cold-water swimming in the Pacific, and host dinner parties. Sarah holds a BA in Human Geographyfrom UBC, and an MSc in City Design and Social Sciences from the London School of Economics.

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Roan Kattouw, Treasurer

Roan was born and raised in the Netherlands, and like most Dutch kids he grew up biking everywhere. When he moved to San Francisco in 2012, the first thing he did was join the SF Bicycle Coalition, to support the creation of the kind of safe bicycling infrastructure he rode on back home. Roan is a software engineer at the Wikimedia Foundation by day, and an advocate for bike infrastructure, safer streets and better transit by night.

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Ernesto Cuellar

Ernesto Cuellar is a San Francisco, Bayview District original. Ever since his school years, he has relied on his bicycle for mobility and independence. Understanding this, Ernesto is a policy and political advocate for safe streets for all road users, especially in communities with high levels of traffic violence. Ernesto is currently serving as Vice President of the San Francisco Young Democrats, as well as involved with queer organizations across the city. All the while, working to uplift immigrant youth with the San Francisco Office of Civic Engagement and Immigrant Affairs (OCEIA). Ernesto is excited to connect gen Z, Black, and latinx voices to the world of bicycle advocacy as he believes the work we do today will mean an easier path for the voices of tomorrow.

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Raynell Cooper

Raynell brings a lifelong passion for problem-solving, stakeholder engagement, and transportation planning to support the San Francisco Bicycle Coalition’s mission to make SF as friendly as possible of a place for cyclists of all ages and abilities. Raynell learned how to ride as an adult so he knows first-hand the barriers to expanding the city’s cycling community and is committed to helping overcome them. Bikes help build community, help save lives, and help save the planet, which is why the work of the Coalition is so important.

Raynell works as a transportation planner and previously served on San Francisco’s Redistricting Task Force, which adjusted Supervisor district boundaries after the 2020 Census. You can often find him biking (on Baywheels or on his own steed, Julius) on the Page Slow Street.

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Joanna Gubman

Joanna serves as Executive Director of Urban Environmentalists, where she advocates to transform cities and towns into more sustainable, human-centered, and just communities through land use policy reform. Previously, she spent many years in public service addressing climate change and ensuring that people who’ve been shut out gain access to safe, effective, and affordable infrastructure. On visiting fellowships in Berlin, she researched micromobility and transportation electrification policies.

Joanna is committed to environmental and transportation justice and believes in the power of bicycling to make SF a safer, more just, and more vibrant city.
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Jean Kao

Jean Kao works in civic technology at where she helps cities manage their shared mobility programs to achieve safety, equity, and sustainability goals. She’s committed to growing our inclusive bicycle community and building collaborative relationships grounded in transportation justice and equity. Jean’s been an SFBC volunteer and advocate for 10+ years. She’s also an organizer of the Norcal Bicycle Touring meetup and a legal observer with the National Lawyers Guild.

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Meaghan Mitchell

Meaghan Mitchell has had success in building the trust of residents from the most vulnerable neighborhoods in SF, stemming from growing up in Bayview, a historically marginalized community. Meaghan’s background is multifaceted and focuses at the intersection of diversity, inclusion and community engagement.

Over time, Meaghan’s outreach work has helped establish the legislated “African American Arts & Cultural District” of SF, launched the first dock-less e-bike share system in SF JUMP Bikes, debuted Hoodline’s Bayview news coverage through journalism, and lead the “Play Streets For All” initiative while working for Livable City.

Victoria Norman

Victoria is an avid cyclist – you will see her commuting around the city, teaching indoor cycling classes at 17 Reasons Why Athletic Club in the Mission, training for AIDS Lifecycle or a Climate Ride, or refueling after a long ride. As a sustainability professional, Vic is acutely aware of the need for individuals and society to quickly adapt to the challenges that come with climate change and adopt greener modes of transportation. She is determined to make San Francisco an ever more bike-friendly city for all – regardless of socioeconomic status.

Ryan Patterson

Ryan Patterson is a land use lawyer focusing on housing construction throughout California. He is an avid bicycle commuter and an advocate for bike safety and increased ridership. He believes education, infrastructure, and community are key to achieving these goals, and that biking can make a vital contribution to public health, the environment, and a vibrant city.

Ryan also serves on the Board of Directors of the Upper Noe Neighbors Association.

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Brandon Powell

Brandon is a lifelong cyclist whose earliest memories include riding his bike to the zoo with his father and brother in his hometown St. Louis. He is devoted to his adopted city San Francisco, and passionately believes that everyone who wants—needs—what the city has to offer should have access to it. Brandon is excited by the prospect of getting more black and brown folks out on bicycles, and he knows that safer streets will unlock that possibility.

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Lisa Ratner

Lisa Ratner has been an SFBC member for over 10 years! She is a User Experience Researcher specializing in making tech products inclusive and is dedicated to the transportation sector. She has worked on a wide range of transportation projects spanning bike share, street design advocacy, public-private partnerships, mode-shift software, and safe driving tools. She has studied bike urban planning in Amsterdam and Copenhagen and dreams of a SF network of street promenades that connect the neighborhoods across the city.

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Alex Thornton

A San Franciscan since 2011, Alex loves getting around in anything besides a car. He is passionate about how accessible, safe bike infrastructure can be a tool for mobility, equity, climate impact, and just plain fun. He works on climate in roles that have spanned energy policy, solar, food waste, and carbon analytics. He lives in the Inner Sunset with his wife and two kids. You can see him most mornings and evenings using his trusty cargo bike as the family minivan.

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Juli Uota

As a teacher and graduate of Adult Learn to Ride, and a member for over ten years, Juli is dedicated to the SF Bicycle Coalition’s mission bringing critical insight into the challenges of riding in San Francisco with a focus on expanding the community of people who bike. She was staff Phone Bank Coordinator for almost a decade, Interim Membership Department lead twice, and now continues her phone bank work as a volunteer. Juli has extensive community and political organizing experience, managing volunteer efforts in presidential campaigns, state races, and as Chair of Democracy Action, a prominent electoral advocacy group.

Pronouns: she/her/hers