Our Team

 Sarah Tuneberg CEO 

Sarah Tuneberg


Geospiza Co-Founder and CEO, Sarah Tuneberg is passionate about harnessing data, analytics, and technology to solve complex challenges. After more than a decade in emergency management and public health, Sarah founded Geospiza to transform the way emergency management decisions are made.

Sarah leads our interdisciplinary team of problem solvers focused on developing data-driven, evidence-based solutions, models, and processes that reduce risk and enhance resilience, especially for the most vulnerable. 

Sarah holds a Bachelor of Social Work from the University of Georgia and a Master’s degree in Public Health from Tulane School of Public Health and Tropical Medicine.


 Craig Kalick CTO

Craig Kalick


Craig Kalick is CTO and Co-Founder of Geospiza. He brings more than a decade of experience leading teams of engineers to solve complex problems across various industries and technologies. 

With a background in Economics, Computational Operations Research, Computer Science, Modeling and Simulation, and Data Analysis, Craig brings a broad skill set to Geospiza. He believes in the power of technology to be a transformative force in the world and to create better lives for the people in it.


 Chessa Rae Johnson Research & Media Partner

Chessa Rae Johnson
Research & Media Partner


Chessa Rae Johnson brings a decade of operations, project management, and strategic planning experience to Geospiza.  With a focus on capacity-building in marginalized communities, Chessa Rae combines passion with pragmatism to deliver practicable documentation and design for our project partners.

Chessa Rae studied Social Policy & Practice at Tulane University, co-majoring in Economics.  Through the lenses of mathematics and behavioral science, she gained insight into how individuals and communities interact with systems and institutions.

As State Chair of CARE (care.org), Chessa Rae learned how to understand, support, and engage these communities-in-need toward realization of equity and dignity. She brings this compassionate center to help Geospiza's partners realize safety, security, and resiliency for their communities.


Shawn Savageau

Software Engineer


Shawn Savageau is a talented software engineer with expertise in front-end development. After receiving his M.A. in Music Performance, he taught himself to program and now brings a degree of detail and craftsmanship to projects formerly known only to classically trained musicians. In Shawn's natural habitat, he can be found hammering computer shortcuts into a mechanical keyboard and wearing over-sized, high fidelity headphones while sipping what many consider to be too much coffee. He believes that technology can be used to changes our lives for the better and hopes to be a part of an effort that counts.




Rachel champions the development and growth of people and organizations by shining a light on opportunities in ways that motivate and inspire. Her passion lies in helping organizations engage and scale so that they  not only survive but thrive in their market. She coaches executives and leaders on developing their organizational capabilities to rapidly learn, respond, and change. More than 15 years of immersion in different coaching engagements across various industries gives Rachel plenty of experience to pull from in helping companies find the right path. As a regular performer in an improv comedy group, she has learned, and taught us all, how to say “Yes, and” to any situation.



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