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Board of Directors

Impact100 Sonoma is governed by an all-volunteer Board of Directors, each of whom is responsible for a particular aspect and function of operation. Board members also chair the committees of volunteers who keep the organization running.  If you are interested in participating on our Board, please contact our Governance Chair, Debbe Noto at

Download a board application form

View the 2020-2021 Impact100 Sonoma organization chart

Claudia Sims, Co-President

In 2002, Claudia and her husband bought what was then a second home in Sonoma. As remodeling was completed and work-lives were wound down, it became their full-time residence. Claudia has a 35+ career in welfare casework and employee benefits. As a benefits consultant many of those years, she became quite experienced at preparing or analyzing benefit plan proposals. Little did she know that experience would be useful at Impact 100 Sonoma.

Debbe Noto, Co-President and Governance

Debbe spent her 30+ year career in the banking industry with experience in operations, relationship management, sales, marketing and communications. In 2009 she and her husband bought a second home in Sonoma and fell in love with the community. In 2016, Debbe retired and they moved into their newly built home in a neighborhood where several Impact100 members live. Debbe joined Impact100 in 2017 and knows this is where she wants to dedicate her time and energy. In her free time, Debbe loves to read, travel with her husband and is slowly learning to speak Spanish. 

Ann Iverson, Secretary

Marney Malik, Treasurer

After retiring from a 30+ year financial career, most recently as an Executive Officer for a NYSE listed company in Oregon, Marney and her husband Shah moved to Sonoma in 2015 to be closer to their family. She joined Impact100 in 2016 to enjoy the company of like-minded women interested in encouraging the development and support of a vibrant and effective nonprofit community in Sonoma Valley. Her previous nonprofit experience includes 13 years on the board of Easter Seals Oregon, as Treasurer, and as a mentor for college bound students through Marathon Education Partners in Portland, Oregon.

Sarah Carroll, Membership

Sarah joined Impact100 in 2017 as a NextGen member and happily said yes to all the new opportunities that came her way.  Inspired by her mother’s commitment to community and social causes, Sarah has found her tribe within Impact100 Sonoma.  With a background in travel and hospitality, she spent many years traveling and meeting new people through work, and is now learning the wine industry from within the marketing team at a family-owned wine company in Sonoma.  Sarah and her husband have lived in Sonoma for over ten years.  When she isn’t working or volunteering, Sarah is trying to slow down time while raising a young daughter.

Sandee Crisp, Member Engagement

Sandee joined Impact100 in 2016 after she and her husband bought a second home in Sonoma.  Falling in love with Sonoma, they gave up their Hawaii Island home of 17 years and moved to Sonoma full time in 2018.  After 25 years away from the Bay Area, Sandee especially enjoys living close to her childen and grandchildren and is happy to be making wonderful new friends through her involvement with Newcomers and Transcendence Theater Company as well as Impact100.

Vianette Contreras, Diversity & Sponsorship

Vianette was born and raised in Sonoma, moved away for college, then decided to return to her family and roots. She joined Impact100 in 2017 as a member of the NextGen Program’s third cohort. Vianette is Vice President of Operations at Puente-Internacional, a local spirits company, and volunteers as a mentor through the Sonoma Valley Mentoring Aliance. When Vianette isn’t working, volunteering or helping out family and friends, she enjoys reading and spending time with her recently-wed husband.

Dian Duvall, 

After spending years biking and hiking throughout Sonoma County on weekends, in 2010 Dian and her husband bought a home in Sonoma. Dian recently retired after a 30 year career with Gensler, a Global Design and Architecture firm. While there Dian, a Princpal in the firm, focused on developing new design practices and building a global client relationship network across the U.S., Greater China and the Asia Pacific regions. Dian joined Impact 100 in 2020 focused on Grants Review with a keen interest in supporting the success of various non-profit organizations in Sonoma.  

Nancy Wever, Co-Communications

An Indiana native, Nancy lived in the East Bay and worked in San Francisco as a federal agency attorney and administrative judge for 30 years before happily retiring and moving to Sonoma with her husband in 2014. She has served on the Board of the Sonoma Valley Newcomers, and currently volunteers for La Luz (as a citizenship tutor), Jack London State Historic Park, and Transcendence Theatre Company, in addition to working part-time in Guest Services at Benziger Family Winery. In her free time, she loves to hike and go on long walks with her 4-year old Sheltie.  

Dana Simpson-Stokes, Grants Oversight

Dana and her husband moved to Sonoma in 2012, returning to California after living in three other states and three European countries. Dana worked in retail buying and interior design before “retiring” to raise two children and become very adept at moving! She has served as an officer for multiple school and community organizations, and joined Impact100 in 2013. She volunteers as a docent with the di Rosa Center for Contemporary Art, serves on the board of Sonoma Plein Air, and is active with Newcomers. Dana enjoys playing tennis and biking, and making art as a printmaker and mixed-media artist.

Robin Layton, Co-Grants Chair

Robin and her husband moved to Sonoma in 2013 after retiring from the U.S. Department of Commerce, where Robin worked principally as a trade negotiator.  They live in the Diamond A community on Sonoma Mountain, and Robin is active in the community’s neighborhood association.  Moving to Sonoma allowed her husband David to indulge his passion for wine with a small hobby vineyard for which Robin often serves as vineyard worker.  She enjoys cooking, flower gardening and travel.  

Mary Jane Stolte, Co-Grants Chair

Mary Jane moved from San Francisco to Sonoma in 2009 after a 25+ year career as a Speech Pathologist, and now works as a Wine Host at MacArthur Place Hotel. She has recently completed a Wine Executive MBA degree and serves on the Sonoma State University MBA Alumni Board. Joining Impact100 in 2013, she has been on the Impact Grant Review Committee for four years. Mary Jane enjoys traveling and playing trivia with her team at Murphy's Irish Pub.

Kathleen Bloch, Assistant Grants Oversight

Kathy is retired from the practice of law. She served as the General Counsel of a technology company in San Jose and previously was a partner at the law firm of Wilson Sonsini Goodrich & Rosati in Palo Alto. Since retiring in 2013, Kathy has enjoyed a number of volunteer activities.  In addition to serving on the Board of Impact 100, she has served as Chair of the Stanford Law School Board of Visitors, she is currently on the Boards of Girl Scouts of Northern California and Teen Services Sonoma, and she is a docent at Sonoma’s historic State Park.


A Thriving Sonoma Valley

Empowering women of Sonoma Valley to invest in a more sustainable nonprofit community through collective giving and responsible stewardship

Impact100 Sonoma is a member of Philanos

Impact100 Sonoma
P.O. Box 1958
Sonoma, CA 95476
(707) 939-5007

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