Meet Our Leadership Team

Mary White is the Founder and CEO of Gemelli Business Services, specializing in HR consulting for ABA therapy companies and BCBA/BCaBA clinic owners. With deep expertise in HR operations, employee relations, onboarding, recruiting, and workplace investigations, Mary helps behavioral health practices build compliant, efficient, and people-centered HR systems.

As a published author of multiple HR books, Mary brings proven frameworks and practical solutions to the unique challenges faced by ABA providers - from HIPAA and BACB compliance to RBT supervision policies and behavior crisis protocols. Her mission is simple: protect your people, protect your business, and enable responsible growth.

Mary's approach combines deep HR expertise with a genuine understanding of the clinical and operational realities of running an ABA practice. She partners with clinic owners to create policies, documentation, and training that reduce risk, strengthen teams, and free up time for what matters most - serving clients.

Tiera Watkins leads brand strategy, digital marketing, and community engagement at Gemelli Business Services, focusing on helping ABA therapy companies and BCBA clinic owners discover the HR solutions they need to grow sustainably. With 15+ years of digital marketing experience and over 10 years in service-based industries, Tiera understands how to connect with business owners facing real operational challenges.

Tiera has scaled social media communities to 80,000+, 50,000+, and 15,000+ followers, generating over $40,000 in annual revenue through strategic content and authentic relationship-building. Her expertise in Facebook and Meta ad campaigns has helped businesses reach their ideal clients efficiently and cost-effectively.

At Gemelli Business Services, Tiera's marketing philosophy centers on education-first content, relationship-based growth, and data-informed decisions. She ensures ABA practice owners discover practical HR resources, understand compliance requirements, and feel supported in building thriving, people-centered organizations.

David Watkins III serves as Chief Operating Officer at Gemelli Business Services, bringing expertise in operations management, systems optimization, and strategic growth planning for service-based businesses. David ensures that Gemelli's HR consulting services, HRIS implementations, and recruiting partnerships are delivered efficiently, reliably, and at the highest quality standards.

With a focus on operational excellence, David streamlines internal processes, manages client engagements, and builds scalable systems that allow Gemelli to serve ABA therapy companies of all sizes - from solo practitioners to multi-location organizations. His strategic approach ensures that every client receives timely, professional support tailored to their unique practice needs.

David's leadership philosophy centers on continuous improvement, client-centered service delivery, and building operational frameworks that support long-term growth. He works closely with Mary and Tiera to align Gemelli's operations with the mission of protecting people, ensuring compliance, and helping ABA practices thrive.