Our Team



Precious Arney

Membership Director

As Progress Alliance's Membership Director, Precious (she/her) helps recruit, on-board, and engage our growing membership. For the past nine years, she has organized with GABRIELA Seattle, a grassroots organization that advocates for the rights of Filipino women and currently serves on the executive committee of the national alliance, GABRIELA USA. She most recently worked at the Washington State Budget & Policy Center, coordinating operations and outreach activities, including managing the annual Budget Matters policy conference. Precious has built many relationships in the Seattle community through organizing and advocacy, during her tenure in theater, and as a barista and restaurant manager in the Fremont and Mount Baker neighborhoods.




Dionne Foster

Executive Director

Dionne (she/her) brings a wealth of experience in strategy development, public policy research, social movement funding and advocacy to her work as Executive Director at Progress Alliance. Dionne has worked as a grassroots organizer, Mayoral policy advisor, researcher and funder on issues as diverse as climate justice, youth employment and legal protection for diverse gender identities. The common thread of her career has been organizing people, information and resources to advance progressive policy and racial equity. Before joining Progress Alliance, Dionne was a Senior Program Officer at Seattle Foundation where she aligned resources strategically in support of policy and systems change by and for low income communities and communities of color. Dionne was raised in Virginia and is a graduate of George Mason University and the University of Washington. When she's not working, she loves to rock climb, read and adventure with her kiddo. Dionne joined Progress Alliance in January 2021.




Jessica Jones

Deputy Director

Jessica (she/her) joined Progress Alliance in 2017 as Operations Manager and has since brought both operations and programmatic leadership to the team, including strengthening our fiscal sponsorship infrastructure, overhauling our grantmaking processes, facilitating PA’s first-ever LGBTQ power-building investments, and was a key partner in supporting our 2020 Census work. In Spring 2021 she stepped into the role of Deputy Director, and is excited to deepen her support of our team, board, grantees, and strategic direction. Jessica brings 9+ years of experience in progressive political non-profits. Prior to joining the Progress Alliance team she held roles in our larger grantee network, most recently as Operations Director of The Washington Bus (2014-2017), as well as supporting candidate recruitment as a Fellow with Progressive Majority Washington (2013-2014). Jessica is a native Washingtonian with roots in Lakewood and Tacoma. She holds a Bachelor of Applied Science in Behavioral Science and a Chemical Dependency Specialist certification from Seattle Central College. She has a passion for making systems efficient and information accessible and aligning organizational policies and practices with anti-racist values. In her free time, Jessica loves seeing live music and being anywhere near water.




Tiffany Mendoza

Political Director

For over a decade, Tiffany (she/her) has worked with advocacy organizations, community leaders, and elected officials for progressive change including Washington Conservation Voters, Fuse Washington and Moxie Media - a female led national political consulting firm. During this time she worked to defeat anti-transgender efforts as a consultant for Washington Won’t Discriminate, helped craft the Transform Washington narratives project and worked to elect women of color into federal, state and local offices. As the Interim Political Director, she led the re-launch of Amplify - a progressive candidate support organization focused on people of color, women, LGBTQ people, and young people. Most recently, Tiffany worked as the Director of Strategic Initiatives with Front and Centered, a coalition of 60+ community of color led organizations working to pass statewide environmental justice policies addressing health disparities in Washington.




Maggie Thompson

Senior Advisor

Maggie (she/her) comes to Progress Alliance with a decade of political and policy work in campaigns and government including as the Seattle Regional Field Director for the marriage equality campaign and the Transition Staff Lead for the Seattle Mayor's Office. Most recently, she was the Equity and Policy Director with the Finance and Administrative Services Department at the City of Seattle, where she led collaborative work with staff teams to build new infrastructure for moving racial equity forward. She holds a Master's in Social Work from the University of Washington.






Susan is co-founder and Executive Director of the Na’ah Illahee Fund, and is a former training and technical assistance specialist for youth tribal programs for the U.S. Department of Justice, Office of Juvenile Justice, and Delinquency Prevention's Tribal Youth Programs through Education Development Center, Inc. Susan carries valuable expertise in all levels of nonprofit operations and management, having been an independent consultant working with tribes, artists, and nonprofits, and currently serves on the board of the Potlatch Fund.

Rod practices environmental law at the Cascadia Law Group PLLC. He has done extensive environmental advocacy, including serving as environmental representative on a number of commissions and task forces, including the Growth Strategies Commission, which led to the creation of the Growth Management Act, the Regulatory Reform Task Force, the Blue Ribbon Commission on Transportation, and the Climate Action Team. Most recently, he co-chaired Governor Inslee's Carbon Emissions Reduction Task Force.

Sharon's interest areas for activism include chemical policy reform, growing the electorate, and shared prosperity. She currently serves on the boards of Washington Conservation Voters and Toxic-Free Future. She has a Computer Science Engineering degree from Princeton University and formerly worked at Microsoft for 12 years. Today Sharon lives in Capitol Hill with her husband Peter and three school-aged kids. If it weren't for pushing to make the world a better place, she would spend more time armed with a camera capturing the beauty of this world.

Vu is a writer, speaker, vegan, Pisces, and the former Executive Director of Rainier Valley Corps, a PA grantee and nonprofit in Seattle that promotes social justice by developing leaders of color, strengthening organizations led by communities of color, and fostering collaboration between diverse communities. Vu’s passion to make the world better, combined with a low score on the Law School Admission Test, drove him into the field of nonprofit work, where he learned that we should take the work seriously, but not ourselves.

Holly worked in hotel management and then spent 10 years at Microsoft managing varied groups, with expertise in organizational and managerial development and leadership. Since retiring from Microsoft, she has done leadership consulting and mentoring, and has served in several volunteer leadership roles with Boards of Directors at Giddens School, Billings School, and Mad P, a neighborhood p-patch her family helped to establish. Holly is inspired by the nuances of people and organizational dynamics and her passion lies in helping people and organizations develop to their full potential. Holly and her husband Bill have been PA members since 2013.

Cary is an urban planner and civic activist. She directed the People's Waterfront Coalition, which helped reclaim Seattle's downtown waterfront as civic space. Cary has a Masters in Landscape Architecture, an Urban Design certificate from University of Pennsylvania, a BS in Engineering from University of Michigan, and an earlier career as a systems engineer. She is currently launching a new advocacy effort in Seattle to promote sustainable, just, innovative urbanism.

Estevan is a program officer with the Piper Fund, where he oversees grant making to support community organizing and advocacy to advance state and municipal money-in-politics reform. He also serves as chair of the Funders' Committee for Civic Participation's Money in Politics Working Group and board president of Rainier Valley Corps. He is a tireless advocate for fair representation and racial equity in our democracy and passionate about youth engagement, community organizing, and the diffusion of power.

Scott is a licensed clinical psychologist in independent practice in Wallingford, where he provides psychotherapy to adults. He formerly supervised graduate students and early-career therapists at the Fremont Community Therapy Project and the Alliance Community Psychotherapy Clinic, organizations offering clinical training and low-fee psychotherapy. Scott serves on the board of the Bainum Family Foundation and was previously a director of Choice Hotels International and a trustee of Crisis Clinic, where he served as chair. He lives in Capitol Hill with his wife, Katie, a teacher and nonprofit consultant, and his teenage son and daughter.

Brooke is a native Oregonian who grew up walking precincts with her family of small-town politicians. She has made Seattle her home since 2005, when she moved to the region to work for then-Congressman Jay Inslee. After working as a Congressional staffer and public involvement consultant on transportation projects, she's spent the last five years volunteering with organizations including Social Venture Partners, Southeast Seattle Education Coalition, OneAmerica, and the Northwest Immigrant Rights Project. Brooke and her husband Josh live in Madison Valley with their son. 




We share our gratitude for the contributions of photography for this website from: OneAmerica, Mike Harring, Tara Gimmer, Sharon Chang, Jessica Jones, and Unsplash contributors Rob Walsh, Markus Spiske, Kyle Glenn, and Taylor Vick.