Lumen Impact Group
Lumen Impact Group

About Us

At Lumen Impact Group, everything we do is designed to support the leaders and teams of our clients. Every ah-ha we help clients discover and every challenge we help leaders and teams successfully address, powers us in achieving our greatest impact … by helping you achieve yours.
Lisa Diaz, Founder

Leaders turn to Lisa Diaz when they need to shape ideas into strategies and create an organizational culture that unites teams and positions them to thrive. With more than 20 years of experience, Lisa guides organizations and leaders through the rigorous exploration of values, mission, vision, goals and impact, using processes and tools that advance and align their teams. Her probing, insightful questions spark conversation and creative thinking, and her customized approach is responsive, flexible and timely, based on client needs.

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Kelly Cadman, Senior Partner

After more than 25 years in the education world, Kelly Cadman is Lumen’s on-the-ground expert for school founding, improvement and quality, and operations.  She has brought innovation to her work with schools since the very beginning of her career in education as a traditional public-school teacher in Douglasville, Georgia. In that position, she pushed the envelope for school […]

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Dr. Laura Groth, Senior Partner

Laura is the resident research enthusiast, bringing evidence and data to help education leaders and teams solve real problems of practice.  She has 10+ years of experience working in K-12 and higher education research, technical assistance, and project management. Recently, Laura led the publications work of a USDOE-funded resource center. Laura managed and wrote reports and toolkits […]

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Stephanie VanDyk, Junior Partner

Stephanie brings experience from an educator’s perspective to Lumen Impact Group. As an educator for 9 years, Stephanie worked in both charter and traditional public schools in Michigan and South Carolina teaching in urban, suburban and rural environments.

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Barbara Owens, Program Manager

Barbara works with teams to help them manage the intricate details of their projects. She brings attention to detail and attentive listening to the Lumen Impact Team, to ensure accuracy and compliance for high-stakes programs. Barbara has spent the past 10 years in education, both as a teacher and a mentor. In addition to her […]

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"Lisa Diaz and Lumen Impact provided invaluable support to Colorado Charter Facility Solutions during our start-up phase. I was the new non-profit organization’s executive director (and only employee at the time), and Lisa knew answers to questions that I did not even know to ask. She made sure the board of directors was set up correctly and that the organizational documents were in place. Lisa helped me establish the organization’s goals and ways to track progress. Lisa is organized, patient and kind, and worked quickly, thoroughly and collaboratively. She is a good listener and even acted as an executive coach/therapist at times. When necessary, Lisa can be direct, yet she is always focused on the goals of the organization and its success. I highly recommend Lisa Diaz and Lumen Impact Group. "
Jane Ellis
Executive Director, Colorado Charter Facility Solutions
"Lumen Impact Group has been critical in supporting Bluum’s efforts in Idaho to manage our $17.1 million federal Charter School Program grant. As one of the country’s first non-profit organizations to receive federal CSP funding, the stakes for our work are very high, and our efforts to help open, expand and replicate public charter schools face scrutiny. I sleep better knowing Lumen Impact Group has worked closely with us to build our processes, procedures and playbook for managing the responsibility of directing and overseeing a significant federal grant. I highly recommend them to others. They are true pros."
Terry Ryan
CEO, Bluum
"You were patient, confident, helpful and supportive, and you coaxed and lovingly nudged us through a process that on our own we wouldn’t have been able to do. It was a very pleasant experience, and even though we still have a lot of challenges ahead of us, we are better suited to meet them. "
Colin Sharkey
Executive Director, Association of American Educators
"Lisa did a fantastic job with our entire strategic planning team. Her process was beyond organized. As a new administrator, I was able to lean on Lisa for her expertise and knowledge of strategic planning. She did everything from meeting organization and to facilitating subgroups, focus groups and staff culture surveys. Her work with the school board and administrative team was respectful, while also filled with appropriate advice and constructive feedback. I could not imagine going through this process without Lisa. She will continue to be a trusted resource for years to come."
Jamie DeWitt
School Leader, NexTech High School
"I have worked with Lumen Impact Group at both the individual and organizational level. As a coach, Lisa has a natural ability to get to the heart of the matter quickly and to ask questions that help her clients translate insight into action. Each team member who has worked with Lisa in a coaching capacity has demonstrated visible growth that has positively impacted individual and team performance. As an organization, we are trying to be purposeful about the culture we are creating, as a means of best fulfilling our mission. Lumen Impact Group has been a tremendous thought partner along the way and has facilitated critical steps in a collaborative yet efficient and fun way. Our team was in awe at how much we accomplished collectively in a short period of time. We are moving toward our ideal culture much more quickly than I thought possible, and I have no doubt it is because of Lumen Impact Group’s guidance. "
Kasey Miller
Chief of Staff, National Association of Charter School Authorizers
"As a family-owned and operated company, we needed to preserve our culture and define our mission, vision and values better as we grew. Lumen Impact Group helped capture a variety of diverse perspectives and hopes for the future in a way that connected everyone involved. Lumen Impact Group helped us create a clear strategic focus and for our future stabilized our culture. Lisa also coached our leadership team in supporting implementation."
Mark Smith
President, Krapohl Ford & Lincoln