About DDI
Welcome to DDI
Get to know DDI, a global leadership consulting firm celebrating 50 years of helping organizations hire, promote, and develop exceptional leaders. From first-time managers to C-suite executives, our commitment is to be by your side to help you make every moment of leadership count. We invite you to spend a few minutes getting to know us, and our approach to leadership.
Better leaders mean better business.
Our passion is to help leaders grow and deliver impact for a better future - for your company, for themselves, for their families, and for their communities. We do this at every level of the organization, from helping you recognize the first signs of leadership potential to putting your next CEO in place.
Ask anyone at DDI what they do, and they’ll tell you: They help build better leaders for a better future. Every person you’ll work with is invested in helping you drive success. Over the years, Bersin’s Leadership Development Study has cited DDI as serving its clients more effectively than 22 other leadership development consultancies. For every step of your journey, DDI is by your side to find success.
We Help You Hire, Promote and Develop Exceptional Leaders
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We can help you create leadership strategies that can solve your biggest business challenges.
CHALLENGESSolve business challenges
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We offer a range of leadership solutions to help you choose and develop the exceptional leaders you need to drive your business.
SOLUTIONSExplore our solutions
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From emerging leaders up to your C-suite, we will help you develop a strong pipeline of leaders at every level.
LEVELSCreate a strong pipeline of leaders at every level
Our Approach
We failed to create a 25th hour in the day. Instead, we created Leadership 480SM.
Based on our work with millions of leaders for five decades, we came to one simple conclusion: Time is the #1 barrier to great leadership.
We can change that. Leadership 480SM is DDI’s strategic framework to help you hire, promote, and develop exceptional leaders who maximize their effectiveness in every minute, every day, and every month of their careers. And it all revolves around one powerful number: 480.
Our Leadership Team
Our management team has a long history of entrepreneurship and a business philosophy that equally benefits our clients, our associates, and our company. Click on a photo below to get to know our leaders.
Tacy Byham, Ph.D.
Chief Executive OfficerAs DDI Chief Executive Officer, Tacy oversees the organization’s day-to-day operations and is spearheading increased strategic focus on DDI's core of leadership insight and growth.
David Tessmann-Keys
PresidentPresident David Tessmann-Keys is committed to promoting a workplace where both men and women have opportunities to advance their careers and to realize their full potential.
William C. Byham, Ph.D.
DDI Founder and Executive ChairmanBill is cofounder and executive chairman of DDI and works to establish the vision, values, and strategic direction of the company. He supervises major DDI product development and consulting projects.
Matthew Paese, Ph.D.
Senior Vice President, Executive ServicesMatt is the leader of DDI’s Executive Services group, where he and his team help CEOs, boards, senior teams, and executives enhance leadership to grow business, cultural, and personal success.
Douglas Reynolds, Ph.D.
Executive Vice President, Innovations and TechnologyDoug Reynolds, Ph.D., is the Executive Vice President of Innovations and Technology at DDI.
Patsy Tsao
Senior Vice President and Chief Financial OfficerPatsy Tsao is senior vice president and chief financial officer of DDI. She is responsible for the administrative, financial, and risk management operations of the company worldwide.
Bruce Watt, Ph.D.
Vice PresidentDr. Bruce Watt, Ph.D., is the Vice President for DDI Europe, India, Australia, licensee operations, and our Global Centre for Excellence.
Mindy Yeh
Vice President, AsiaMindy Yeh leads DDI's business strategy and operations in the Greater China region, including Hong Kong, Mainland China, and Taiwan.
DDI’s U-SPARK! Grant Program
Make a Difference With Your Favorite Nonprofit Organization!
DDI is committed to not only enhancing organizational performance, but to enriching people's lives, communities, and the world. We believe that by building skills and sharing our leadership programs, we will help make them more effective in fulfilling the missions of their organizations.