About collective impact solutions
What drives us:
At Collective Impact Solutions (CIS), we believe in creating lasting change by working together to remove barriers and fix unfair systems. We focus on changing policies and practices that have held people back, especially in communities affected by racism and inequality.
We use the Single System of Support Framework (SSoSF), which combines research and real-life experiences to design solutions that meet each community’s unique needs. Our team includes experts from all levels—local, state, and national—who bring the best practices to help create change.
Working Together
We believe real change happens when we all work together in trust and partnership. We make sure that everyone—nonprofits, schools, governments, and communities—works toward the same goals. By aligning efforts, we build strong plans that deliver real results for the people we serve.
At CIS, we are driven by the idea that we can make systems fairer and create better opportunities for everyone through collaboration and shared commitment.
Our Team
Dr. Rebecca Celes Mendiola, Chief Executive Officer/Co-founder
Dr. Rebecca Celes Mendiola, Chief Executive Officer/Co-founder
Dr. Rebecca Celes Mendiola, Chief Executive Officer/Co-founder
Dr. Rebecca Celes Mendiola has over 25 years of experience working with children and families as an Educator, Social Worker, Mental Health Therapist, Behavior Specialist and Consultant. She has led, directed, and coordinated multiple student services departments and programs as an Assistant Superintendent, Director, and Coordinator at t
Dr. Rebecca Celes Mendiola has over 25 years of experience working with children and families as an Educator, Social Worker, Mental Health Therapist, Behavior Specialist and Consultant. She has led, directed, and coordinated multiple student services departments and programs as an Assistant Superintendent, Director, and Coordinator at the school site, district and county level ensuring system alignment and collaboration with stakeholders of all levels to coordinate efforts so that all students are provided equitable access and opportunity to quality education. Dr. Mendiola is a co-founder of the California PBIS Coalition. She established and directed the Santa Clara and San Diego County Offices of Education Positive Behavior Interventions and Supports (PBIS) Technical Assistance Centers.
After 23 years working in the government and education systems, she decided to leave the government system and co-founded a non-profit and is currently the CEO of Collective Impact Solutions. As CEO, she leads and guides community based organizations, school districts, cities, and counties through collective impact efforts to authentically engage youth, residents, community-based organizations, school districts, and local government to develop and implement a coordinated and collaborative single system of support framework (SSoSF) to address racial disparities in life outcomes and public investments with disadvantaged populations and geographies.
Mirna Castro, Director of Operations & Projects
Dr. Rebecca Celes Mendiola, Chief Executive Officer/Co-founder
Dr. Rebecca Celes Mendiola, Chief Executive Officer/Co-founder
A San Joaquin Valley girl, born and raised, Mirna Castro is a dedicated professional with a wealth of experience in the public service and nonprofit sectors. With over 6 years of impactful contributions in government, specifically in human services and public health, Mirna has demonstrated a passion for enhancing community well-being. Tra
A San Joaquin Valley girl, born and raised, Mirna Castro is a dedicated professional with a wealth of experience in the public service and nonprofit sectors. With over 6 years of impactful contributions in government, specifically in human services and public health, Mirna has demonstrated a passion for enhancing community well-being. Transitioning seamlessly to the nonprofit arena for the past 16+ years, Mirna's career has spanned diverse roles, including direct client service, advocacy, management, and operations. Her commitment to making a positive difference has been a driving force throughout her professional journey.
Currently pursuing a Bachelor's degree in accounting with a concentration in nonprofit accounting, Mirna is equipping herself with the financial expertise necessary to further support and strengthen nonprofit organizations. Her educational pursuits align seamlessly with her mission to empower nonprofits to achieve their goals and amplify their impact. Mirna Castro is not just a professional; she is a catalyst for positive change, combining her passion for public service with a strategic focus on nonprofit financial management.
Brian Williams, Project Manager
Dr. Rebecca Celes Mendiola, Chief Executive Officer/Co-founder
Puri Celes-Mendiola, Administrative Assistant
Brian Williams is a digital marketing professional with more that 20 years in the industry with a background of design and project management. He has experience working with nonprofits and small to large businesses.
Puri Celes-Mendiola, Administrative Assistant
Puri Celes-Mendiola, Administrative Assistant
Puri Celes-Mendiola, Administrative Assistant
Puri graduated with an Associates degree in Psychology from San Deigo Mesa College. She is currently attending San Diego State University for her Bachelor's degree in Psychology with a minor in Social Work. Puri has experience working with children with Autism as an Applied Behavior Technician and three years experience in retail.
OUR CONSULTANTS
Puri Celes-Mendiola, Administrative Assistant
OUR CONSULTANTS
Susan Barrett
Fred Buggs
Jennifer Del Bono
Tiffany Gipson
Tia Martinez
Ernie Pacleb
Dr. Cha See
Patricia Marquez Singh
Dr. Kim Yanek
California Afterschool Network