grey-wallDennis J. DaRos, the owner and principal consultant of Great Island Consulting, brings more than 35 years of business and organizational experience to his clients. He has had successful careers in education as a faculty member and college administrator; as an Executive with Digital Equipment Corporation; and as a senior Organization Development and Training resource. For the past nineteen years he has developed a reputation as a highly respected Consultant working with clients in the U.S and internationally.

He has led large-scale change efforts, as well as targeted interventions in manufacturing, finance, sales and marketing, city government, and education. Whether he is working with a small non-profit or global company he consistently delivers results.

Dennis is frequently invited to speak at national conferences and seminars on a wide range of topics ranging from Diversity and Inclusion; Leadership, and Organization Development. He serves as an Executive Coach to multiple organizations.

Dennis is dedicated to partnering with clients to create organizations that bring out the best in people and excel in their respective industry.

His clients have included:


  • City of Portland, Maine
  • City of San Diego
  • Conoco, Inc.
  • County of Arlington VA
  • Cummins Engine Company
  • Eastern Maine Medical Center
  • Eastman Kodak Company
  • Farmers' Insurance
  • Food Lion LLC
  • Foreningen Gestalt i Organisation (Sweden)
  • GE Capital Mortgage Company
  • Hannaford Bros
  • Hartford Financial Services Group
  • International Association of Fire Chiefs
  • Kellogg Company
  • Lowes'
  • Maine School Administrative District 75
  • Massachusetts Teachers Association
  • Miller Brewing Company
  • Millersville University
  • Minnesota Fire Chiefs Association
  • Mobil Oil Company
  • Perlan Dialog och Ledarshkap AB (Sweden)
  • Sandia National Labs
  • South Central Foundation, Alaska
  • State of Maine, Epidemiology Group
  • Sweetbay Supermarket
  • Toyota Motor Sales
  • UNUM
  • Zurich Insurance

Dennis is a member of the Gestalt International Study Center, and the Organization Development Network. He currently lives in South Portland, Maine.

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