Get Clarity, Gain Confidence, Be Empowered

Decalō Leaders is dedicated to cultivating leaders who value integrity, honesty, and social responsibility. We offer public programs for individuals interested in exploring the core principles of leading high-performing teams. We design customized application strategies through group and personal coaching. Our public programs are available for licensing, with Decalō Leaders conducting train-the-trainer workshops for organizations wanting to develop and sustain an internal program without the cost of customization. We also create tailored, principle-based, human-centered programs rooted in client data and adapted to specific client needs.

Meet Our Team

A smiling woman with short gray hair and glasses, wearing a mustard yellow blazer, sitting on a staircase with white railings.

Hi, I’m Katherine Coles, Founding Principal, Decalō Leaders

Katherine Coles is a dedicated leader in organizational development with over 18 years of experience supporting executive teams, emerging leaders, and complex organizations. She has extensive expertise in enterprise-wide initiatives that enhance organizational performance, strategic planning, and strategy implementation. Her passion for leadership development, team performance, and change management shines through in her work. She is a subject matter expert on how leaders and groups influence inviting cultures, build high-performing teams, and foster individual ownership of organizational goals. Katherine’s approach is based on adult learning principles and data-driven strategies, which she uses to develop teams that perform and deliver exceptional results. She excels at translating strategic goals into practical, scalable development plans that drive meaningful change.

  • "Brilliant OD and leadership development expert and facilitator. I can't wait to read her future books."

  • "Brilliant and creative leader. She takes appropriate risks and has the courage and knowledge to see them through."

  • "Powerful and dynamic facilitator who delivers thoughtfully-crafted learning session designs."

  • Solid academic background and great instincts. She is knowledgeable, direct, and impactful."

Hi, I’m Natalie Spangler, Founding Principal, Decalō Leaders

Natalie is a dedicated consultant specializing in stakeholder engagement and leadership development. Grounded in her faith and a deep commitment to service, she empowers organizations and professionals to build meaningful connections, foster collaboration, and drive impactful growth. Believing that leadership is more than just strategy—it’s about purpose, integrity, and uplifting those around us—Natalie guides individuals and teams to refine their leadership approach with wisdom, empathy, and vision. Her work bridges gaps between stakeholders, ensuring alignment and engagement that leads to sustainable success. With a strong foundation in nonprofit leadership, program design, and values-driven consulting, Natalie is passionate about helping professionals unlock their full potential.