Mike Davis is the Chief Executive Officer of Purpose Built Schools Atlanta and oversees the strategic vision and community impact initiatives to advance PBSA’s mission to cultivate PBSA’s students’ skills and agency in pursuit of their unlimited potential. He has more than two decades of non-profit, business, and educational experience, including leadership roles at Sheltering Arms Early Education and Family Centers, Fulton County Schools, and Charlotte-Mecklenburg Schools. After beginning his career in the private sector, Mike entered education as a Fellow in the Broad Residency in Urban Education and founded his own educational consulting company. He is on the board of the Reinvestment Fund and a member of the Leadership Atlanta Class of 2025.

Mike earned a bachelor’s degree in business administration from Morehouse College and a Juris Doctor from Fordham University School of Law.

Favorite Subject: History

Cara Frattasi serves as the Chief of Staff at Purpose Built Schools Atlanta, where she drives strategic initiatives and ensures effective collaboration and impact across teams. Working closely with the CEO, Cara supports PBSA’s mission by leading key projects related to external relations, communications, development, and achieving the organization’s strategic goals.

Cara earned a bachelor’s degree in political science from Loyola University Chicago and a master’s degree in public policy from New York University.

Her favorite non-work pastimes include reading long books, running with her dog (Clark), and playing tennis.

Favorite Subject: English

Siobhan Gardner is the Chief Academic Officer of Purpose Built Schools Atlanta, where she leads the strategic vision for academic excellence while ensuring operational and instructional success of PBSA schools.

She brings more than 22 years of experience in education having served as a Senior Academic and Program Strategy Consultant at Bellwether, where she supported districts, networks, and school leaders with instructional coaching systems, curriculum implementation, executive coaching, and strategic planning.

Previously, Siobhan was Principal of KIPP South Fulton Academy in East Point, Georgia where she led the school from a “C” to an “A” rating on Georgia’s Governor’s Office of Student Achievement report card in just two years and earned recognition as a Title I Distinguished School, placing it among the top 5% of Title I schools statewide.

Siobhan began her career as a middle school math teacher with Teach For America in Newark, NJ, where she developed a deep belief in the power of data, transparency, and strong partnerships with families and students. Growing up in the Bronx, she experienced firsthand the inequities of the education system, an experience that fuels her commitment to schools grounded in excellence, shared responsibility, and care for the whole community.

She holds a master’s degree in education from National Louis University and a bachelor’s degree in Spanish and Economics from Emory University. Siobhan lives in East Point with her husband, Marcus, and their sons, Malcolm and Matthew.

Dr. Natasha Hogan-Mahan is the Principal of Price Middle School, where she leads with vision and dedication to creating a positive and inclusive educational environment for all students. She oversees academic programs, manages faculty and staff, and fosters a well-rounded educational experience that prioritizes academic excellence, social-emotional development, and community involvement. Earlier, Dr. Hogan-Mahan served as Price Middle School’s assistant principal where she oversaw all school operations and academic progress.

Dr. Mahan holds a Bachelor of Arts in English from Fort Valley State University, a Master of Arts and an Education Specialist degree in Curriculum and Instruction from the University of Phoenix, and a Doctor of Education in Leadership from Valdosta State University.

She is an avid traveler and lover of the outdoors. She enjoys sports and activities that connect her with nature, embodying her favorite color, green—a symbol of life, renewal, and her adventurous spirit.

Favorite Subject: Literacy, Journalism, Creative Writing

Niomi James serves as Principal of Carver STEAM Academy, bringing over 20 years of educational and leadership experience, including roles as vice principal, school effectiveness specialist, instructional coach, and teacher. As principal, Ms. Henry provides a clear vision for personal growth and academic achievement, fostering a safe, positive, and inclusive learning environment.

She earned a master’s in education administration from Strayer University, a doctor of educational leadership from Georgia College and State University, and a bachelor's degree from Spelman College.

Ms. Henry has an appreciation for the arts and culinary creativity, finding joy in ballet, live theater, documentaries, historical dramas, and experimenting in the kitchen.

Favorite Subject: History

As principal of Slater Elementary School, Jovan Miles shapes the vision for school improvement and works to foster a positive school culture. With over 20 years of experience in education, his leadership is rooted in a deep commitment to student success and community engagement, ensuring every child has the opportunity to thrive.

Previously, Mr. Miles served as Dean of Academics at Thomasville Heights Elementary School, later becoming its Principal in 2019. He led the school until its closure and subsequent merger with T.H. Slater Elementary in the fall of 2022.
He completed his post-secondary education at Georgia State University where he earned a bachelor’s degree in business administration, a master’s in educational research, and a specialist’s degree in educational leadership.

In his free time, Mr. Miles loves diving into films, getting lost in a good book, jamming to his favorite music, hitting the open road on his motorcycle, and nurturing his growing collection of plants.

Favorite subject in school: English and Music

Nichole Stone is a fierce advocate for equity and educational opportunities for all students. As the leader of talent, recruitment, human resources, staff culture, and wellness at PBSA, she is dedicated to supporting and empowering the team that drives the organization forward. Ms. Stone also oversees performance management, professional development, and leadership support, ensuring a thriving and cohesive work environment.

She earned a bachelor’s degree in English and communications from James Madison University.

Outside of work, Nichole enjoys exploring new destinations, visiting farmers markets, savoring local cuisine, and hosting gatherings. She’s also a proud mom to three wonderful children and loves spending time with her family.

Favorite subject in school: English and Sociology

Jonathan Tugman oversees operations, IT, nutrition, and finance, while also contributing to strategic initiatives in talent and data. He joined PBSA in 2019 as Chief of Staff and became COO in 2021.

He holds a master’s in business administration from The Wharton School, a Master of Science in education policy from the University of Pennsylvania, and graduated from UNC-Chapel Hill in business administration and economics.

Outside of work, you can find him cheering for Carolina basketball, Braves baseball, and studying organizational psychology.

Favorite Subject: Language Arts