About Us

Despite billions being spent on leadership development, only 19% of organizations have strong, principled leaders. Only 35% of employees trust their leaders’ integrity.

About Us

Decalō Leaders equips women leaders, teams, and organizations with principled, human-centered leadership development that turns insight into everyday action. Our services blend strategy, practical tools, and years of experience serving complex organizations—helping leaders strengthen culture, increase performance, and align daily behaviors with what matters most.

Whether you’re developing emerging leaders, elevating team effectiveness, or building a high-trust, high-performance culture, our programs are designed to create clarity, accelerate productivity, and deliver measurable results.

Expert Leadership Development

Decalō Leaders is led by Katherine Coles, a business leader, strategic coach, author, and speaker with more than 18 years of experience supporting executive teams, emerging leaders, and enterprise-wide initiatives. Katherine’s work centers on helping leaders and groups shape culture, build high-performing teams, and take genuine ownership of organizational goals. She brings a principled, human-centered approach to leadership development—designing practical, scalable programs that translate insight into everyday action and measurable results. At the heart of Decalō’s mission is building a community of principled leaders who understand the team–leader dynamic and are committed to supporting, mentoring, and expanding one another’s professional networks. We believe leadership grows stronger in community, and we create the conditions for leaders to learn together, rise together, and lead with clarity and integrity.

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Katherine Coles

Katherine Coles is a business leader, strategic coach, author, and speaker with more than 18 years of experience helping organizations navigate change, strengthen leadership, and build cultures where people can do their best work. As the CEO and Founding Principal of Decalō Leaders, she brings a principled, human‑centered approach to leadership development—one rooted in integrity, clarity, and measurable behavior change.

Katherine has designed and led enterprise‑wide initiatives across a wide range of environments, including federal agencies, courts, public‑sector organizations, corporate teams, nonprofits, small businesses, and faith‑based communities. Her work spans performance improvement, strategic planning, organizational assessment, team effectiveness, and leadership development. She is known for her ability to translate complex organizational challenges into practical, actionable solutions that leaders can apply immediately.

Through Decalō Leaders, Katherine delivers cohort‑based Leadership Labs, executive coaching, and customized programs that expand self‑awareness, strengthen trust and influence, and help leaders build sustainable, high‑performance cultures. Her approach integrates practical leadership theory with real‑world application, ensuring leaders not only learn—but transform how they show up, communicate, and lead.

Across every engagement, Katherine champions clarity, principled action, and the belief that leadership is both a responsibility and a privilege. She is committed to equipping women leaders and teams with the tools, confidence, and community they need to thrive in complexity and lead with purpose.

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Our Clients Say About Us

Discover how our professional solutions have positively impacted businesses worldwide.

Last year, my team and I experienced a profound transformation through leadership training and coaching from Katherine Coles, the founding principal of Decalō Leaders. She facilitated a Team Cohesion Workshop Series that provided us with invaluable tools to understand and refine our communication styles, resolve conflicts more effectively, and foster a stronger, more cohesive team. Katherine’s real-time coaching allowed us to apply these tools in practical situations, helping us see the positive intent behind each colleague's perspective and approach to problem-solving with newfound clarity. These tools have not only resolved immediate challenges but have also positioned us as empowered problem-solvers ready to tackle future obstacles.

FDA Middle Manager

What made Katherine exceptional was that her approach did more than deliver strong results; it built cohesive, healthy teams. People chose to follow her because she created an environment where collaboration felt natural, where accountability was shared, and where everyone clearly understood the vision and direction.

LMI Project Manager

I still think about what I learned from her almost every day. I now manage a younger team, and I intentionally apply the lessons I learned from Katherine. I try to communicate more clearly, be more direct, and remain respectful even in difficult moments. She showed me that true leadership is not about authority. It is about creating a culture where people feel safe to contribute and empowered to do their best work. Her influence extends beyond my professional life. When I need to approach sensitive or emotionally difficult conversations with my own family, I often pause and ask myself, “What would Katherine do?” Following that mindset has made me more confident and honest in all areas of my life. Katherine changed the way I lead, the way I communicate, and the way I show up for the people around me. She is the kind of leader who makes a lasting impact, and anyone who works with her will feel that difference immediately.

Lauren Designation

I have fully embraced Katherine’s approach to coaching and leadership development, both personally and professionally, which has led to greater self-awareness and stronger team dynamics. As the former Director of a government learning organization with 40 staff members serving more than 6,000 employees, I recognized that strengthening my leadership skills was essential to my success. Katherine provided me with the tools to shift from a predominantly transactional leadership style to a more transformational one, enabling me to navigate challenges and organizational change with clarity and confidence. Our individual conversations and team sessions created a safe space for vulnerability, which deepened trust within my team and ultimately contributed to the success of our division and the employees we served.

Valerie

Top of mind is the courage to speak up, express my truth, and challenge things that don’t support the outcomes we hope to achieve. I am less afraid of storming and engaging in conflict when it challenges artificial harmony and strengthens cohesion, creating better relationships and results.

Mia