Principal Consultants
The members of Germane’s team are chosen – and choose Germane – for our ability to see into what is most important and true about our clients. We are highly intuitive and hold advanced degrees in the science of our profession. At the same time, we each bring unique expertise and when needed work as a team to deliver outstanding results.
Nancy Heaton Lonstein, Principal Consultant

Nancy Heaton Lonstein is a certified executive coach, and a recognized expert in the fields of leadership development, change management and organizational learning. She has held management roles in Fortune 500 companies, strategy consulting firms, small business and non-profit organizations.
Nancy has an undergraduate degree in physics and a Master’s Degree in organizational consulting from Harvard University. She was one of the original members of The Institute for Noetic Sciences and a current member of the New England Society of Applied Psychology, The Society for Organizational Learning, the Organization Development Network and Boston Facilitator’s Roundtable.
Nancy has and continues to make significant contributions to the fields of leadership and organization development. She co-authored a chapter in Peter Senge’s best-selling book, “The Fifth Discipline Fieldbook,” and is working on “Raising the Curtain, The Real Lives of Leaders,” with David Kantor. She also collaborated with David Kantor on the Kantor Profile Instrument Suite, a set of behaviorally based assessments that give leaders tools to communicate and lead others more effectively in highly intense situations when it matters most. Lonstein and Kantor’s recent speaking engagements include “Losing It: When High Stakes Situations Erode Communicative Competency.”
Jerry Zevin, Principal Consultant
Jerry Zevin is a senior organization development consultant with over 20 years experience. He works in the profit and not-for-profit sectors, and has practiced both as an internal consultant to Fortune 100 companies and as an independent consultant. His areas of expertise include leading large systems change, organization design, team development, executive coaching, and survey design. He is highly respected for his work in building high performing and self-managing teams as part of an organization design strategy.
“Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime.” Chinese Proverb
Jerry teaches clients to fish. Some might say he teaches them to design and build a better fishing rod. He creates a dual focus – increasing change management capability through action learning while collaborating with clients to design and implement strategic change initiatives. By doing so, he ensures clients’ success with the current and future project. Jerry delivers business return on investment through pro-active strategies designed to pre-empt predictable crises.
Jerry enjoys working on challenging situations with concrete business goals in mind, including maximizing revenue, organization turnaround support, technology implementation, business model/strategy shift, organization redesign and international consulting. Clients enjoy Jerry for his expertise as well as his collegiality and many become life-long friends.
Jerry was the Senior Director of Organization Development at PacifiCare Health Systems and an Organization Development consultant at the former Digital Equipment Corporation. His accomplishments include
- Design and implementation of a change management program to implement CRM resulting in a 30% decrease in customer phone wait times and 20% lower cost of operation.
- Redesign of a manufacturing organization to incorporate self-managing teams
- Implementation of complex information technology solutions with external customers – a change management approach
- Increase in competitiveness and profitability of worldwide services organization in Japan, Southeast Asia, Australia, Western Europe, Canada and the U.S. Transformed organization strategies, structure and culture in response to a changing business model.
Jerry has a B.A. in Political Science from California State University, Northridge, and a M.A. in Clinical Psychology from Pepperdine University. He studied at the Gestalt Institute of New England and NTL Institute. He is a graduate of the Advanced Program in Organization Development at Columbia University and is certified in to use Myers Briggs Type Indicator and the DiSC System.
Jerry is a member National Human Resource Association, Organization Development Network, American Society for Training and Development, Human Resource Strategy Forum, and Professional Coaches and Mentors Association. He lives in Irvine, California where he enjoys time with his wife and life partner Judy, who is a psychoanalyst, and serves on the board of his synagogue. Jerry enjoys photography, collecting stamps, reading, and following professional sports with his two grown sons – Eli and Avi.
Susan Mazza, Principal Consultant

Susan has worked with leaders and their organizations for over 20 years to substantially improve the performance of their organizations and their people.
For the first 10 years of her career Susan worked successfully in many facets of Business System design, development and implementation from both the end user and IT sides of the process including requirements definition, relational database design, managing development teams, overall project management, as well as client services.
She then parlayed her unique talent for facilitating change and attaining unusually high customer satisfaction with business systems into a focus on transforming the human systems that enable the success of organizations. With her unique experience as a change agent both internally and externally and an unquenchable thirst to unlock the potential of the human spirit, she has worked successfully with people around the world in business, as well as with non-profits and in k-12 education.
Her clients include: Prudential Financial, Tyco, AT&T, Sedgwick Claims Management Services, Lucent Technologies, SMART Business Advisory and Consulting, LLC, The Morris School District, DelSano Construction Company, Heller Communications Design, and The Cloud Institute for Sustainability Education.
Susan has a B.S in Finance with an emphasis in International Business from The Pennsylvania State University and is certified to use the NetTPS Values System.
