Board of Directors
About Our Board of Directors
Impact100 Sonoma is governed by an all-volunteer Board of Directors, each member 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. To learn more about board service opportunities, contact our Governance Chair at governance@impact100sonoma.org. We will post leadership opportunities here when they become available.
2025/2026 Board of Directors
Leslie Blankenship Leslie Blankenship PresidentLeslie is an attorney who has served as corporate counsel for several high-tech companies. Employing both her legal and business experience, she has spent the last 25 years serving on a number of local nonprofit boards. She joined Impact100 Sonoma in 2017.
Vice President/Grants Oversight Co-ChairAlison is a former management consultant and executive recruiter with extensive experience in strategy, talent, and organizational change. She led large-scale transformation projects for Fortune 500 clients and later conducted executive searches in the education technology sector. She joined Impact100 Sonoma in 2022.
Kathryn Rakow Kathryn Rakow Grants Oversight Co-ChairKathryn is a former management consultant and software executive with experience in strategic management, marketing, product management, and operations and has served on the boards of numerous nonprofit organizations. After retiring from the corporate world, she started a garden design business, which she still enjoys. She joined Impact100 Sonoma in 2022.
Barbara Insel Barbara Insel TreasurerBarbara has been deeply involved in the wine industry since 2004, most recently founding wine-business consultancy Insel & Co. in 2018. Over the previous 20+ years, she built a distinguished career with leading firms in international finance, investment strategy, and research, and taught at the college and professional level. Throughout, she has engaged in community development and charitable support activities. She joined Impact100 Sonoma in 2022.
Beth Daecher Assistant TreasurerFollowing her education in software engineering, Beth served as director for several high-tech firms, gaining experience in software development, project and product management, and sales. After many years in the corporate world, she pivoted to interior design and architecture and is currently the principal of a small design firm. She also has volunteered for a number of nonprofit organizations. She joined Impact100 Sonoma in 2023.
Bobbie Collins Bobbie Collins SecretaryBobbie is a former regulatory compliance and risk management professional with more than 30 years of experience in banking and other industries, serving in staff, management, and consulting roles. Since retirement, she has tapped into her creative side to support nonprofit organizations and community projects. She joined Impact100 Sonoma in 2014. |
Margery Mayer Margery Mayer Governance ChairMargery has been a program management leader with deep experience in high-tech manufacturing and pharmaceuticals. She built and sold a program management consulting company that advised executives of various industries, and holds a Ph.D. in Behavioral Science. She joined Impact100 Sonoma in 2022. ![]() Cheryl Shimek Cheryl Shimek Engagement & Education ChairAfter 10 years as a cardiovascular critical-care nurse, Cheryl earned an MBA and began a career in the medical device industry. She spent more than 30 years leading multidisciplinary teams and companies in the development, manufacturing, and marketing of unique tools for monitoring and treating critically ill patients. She joined Impact100 Sonoma in 2019.
Linda Murphy Linda Murphy Events ChairLinda has worked in corporate and social catering and events management for the past 30 years with clients in some of Silicon Valley’s top companies and organizations. She also has studied meditation and healing arts since 1985 and is currently an intuitive counselor. A part-time nonprofit employee and engaged community volunteer, she joined Impact100 Sonoma in 2023.
Ann Arabian Ann Arabian Membership Co-ChairAfter performing worldwide with Up with People, Ann spent 16 years as a United Airlines flight attendant before dedicating herself to raising her two children and volunteering at their schools. Most recently she served three years as president of the Sonoma Valley Newcomers Club and five years on the P.E.O. California State Chapter board, supporting educational opportunities for women. She joined Impact100 Sonoma in 2020.
Stephanie Chakmak Stephanie Chakmak Membership Co-ChairA former banking project manager, Stephanie specialized in international trade finance, acquiring skills that transitioned seamlessly from the boardroom to raising her two children. An avid community volunteer, she has served as a Los Angeles Zoo docent and Girl Scout leader, as well as conquered 52 peaks in Southern Nevada. She joined Impact100 Sonoma in 2018.
Cristine McMillan Cristine McMillan Communications ChairCristine is a marketing professional with more than 20 years of experience supporting growth at Bay Area technology companies. She specializes in developing training programs, creating compelling content and communications, and building resources that engage diverse stakeholders. She is passionate about empowering organizations through clear, strategic messaging and effective enablement. She joined Impact100 Sonoma in 2022. |
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