Bill Sadler, J.D., M.U.R.P., has been the executive director of the CivicSpark fellowship since September 2022. Bill resides in Los Angeles and has 20+ years of leadership & management experience with nonprofit organizations, government agencies and cross-sector coalitions across the U.S. His primary focus has been on creating and implementing programs, policies and strategies in…

Mariah Thomson serves as the Program Implementation Coordinator with CivicSpark, bringing expertise in leadership development, mentorship, and training facilitation. She strives to cultivate confidence in our Fellows as they embark on their climate career journeys. Mariah first joined the CivicSpark team as a Regional Coordinator for the Washington region in 2023. She is an alum…

Lily Swanbrow Becker is based in Tallahassee, Florida and brings over a decade of experience centered on the environmental and psychosocial dimensions of climate change adaptation in both public and non-profit settings. She previously worked at the Florida Fish and Wildlife Conservation Commission, where she developed an agency-wide climate change adaptation program with a focus…

Justin Brosseau is based in the Sacramento region and brings 15+ years of experience working in public and non-profit environments with a focus in building teams and designing programs that lead to lasting change.  His career in collegiate and youth athletics was predicated on instilling positive life lessons and skills within the organization’s membership, preparing…

Mamie Murry serves as CivicSpark’s Recruitment Manager overseeing the program’s recruitment and marketing activities. As a two-time AmeriCorps member and nonprofit professional, she knows the everlasting impact AmeriCorps has on its members and the community served. Upon completing her terms of service, Mamie held various roles within the nonprofit sector managing operations, coordinating volunteers, and…

Skylar serves as Program Implementation Manager with CivicSpark, bringing 8 plus years of experience managing sustainability programs and people. She originally joined the team as a Regional Coordinator for the Central California region in 2021. Prior to CivicSpark, Skylar worked as Sustainability Specialist for UC Davis Student Housing and Dining Services where she managed the…

Tim Mok is the Program Implementation Manager and initially served as the Southern California Regional Coordinator.  Tim has 8+ years of experience in the resiliency field where he worked on philanthropic collaboration advocated for environmental justice policies led environmental education and service learning workshops and served as an AmeriCorps member.He’s also an interim board member…

Ariadna is the Operations and Compliance Manager for the CivicSpark program. Prior to joining CivicWell as a staff member in 2016, she served as a CivicSpark Fellow herself for the 2014-2015 service year, supporting the Sacramento region on two projects; one with the Sacramento Metropolitan Air Quality Management District (SMAQMD) and the Sacramento Tree Foundation…