Geoff GuilfoyGeoff Guilfoy
Geoff helps CEOs and their executive teams improve their strategic and business focus. He specializes in leading change initiatives, coaching leaders to become better leaders, teaching organizations and teams how to be more effective, and in improving the business processes that are essential to success. Geoff has been a management consultant since 1995 and has consulted with numerous private sector, government and nonprofit clients. Prior to founding Lumen Leaders LLC in 2012, Geoff established and was the Partner in charge of the management consulting group at a regional CPA and business consulting firm. He is a Certified Management Consultant and an active member of the Institute of Management Consultants.

Geoff has a MBA from Willamette University and a Bachelor of Science degree from San Jose State University.  He is an Executive Professor at Willamette University’s Atkinson Graduate School of Management and teaches courses on management consulting, nonprofit management, and government.  Geoff also serves on the Board of Directors of Co-Serve International, a program that teaches leadership at universities in Central Asia and in other parts of the world.


LumenLeadersYvonneSmYvonne Deckard
Yvonne helps organizations and individuals identify and address barriers to their success and lead change initiatives. As an outside consultant, she is called in to share her expertise in organizational leadership and strategic development. Prior to her affiliation with Lumen Leaders LLC, Yvonne founded YLD Consulting and served for more than 13 years as the Director of Human Resources for the City of Portland. She led a major reorganization, building a nimble, responsive and effective corporate client-based human resources system. Her leadership and vision was instrumental in developing and implementing an organization wide equity and diversity program. Yvonne successfully uses a variety of negotiating and problem solving approaches to guide groups from conflicting positions to mutual agreement, and provides individualized coaching for executives and senior-level management.

Yvonne has a Bachelor of Arts degree in Psychology and Speech Education from Pacific University.  She served on the Board of Trustees for the Portland Fire and Police Disability Retirement Fund. Yvonne also serves as a member of the City of Portland Golf Advisory Board that is responsible for four large municipal golf courses.