About Jimmy

  • Global expert in scalable vertical development programs
  • Over 30 years of transforming executives, leadership teams, and large organizations
  • Personally led over 100 org transformation initiatives in multiple Fortune 50 companies and multiple industries – technology, healthcare, energy, retail, and public sector
  • Facilitated over 500 events with groups of all sizes
  • Former attack helicopter pilot and U.S. Marine Corps officer, U.S. Naval Academy graduate
  • PhD in developmental psychology applied to organizational transformation

Jimmy Parker | jimmy@vertical.dev | (404) 969-5323


    What People Have Said

    • Jimmy is the best I have seen…nothing short of phenomenal - Chuck H, Chief Strategy Officer
    • Jimmy is one of those rare catalysts able to propel an organization's personnel to the next level. - Chris J, Chief Technology Officer
    • Jimmy has an innate ability to help others discover their strengths and weaknesses for improvement and growth. - Chris W, Chief Executive Officer
    • I am absolutely blown away by Jimmy's work. - John A, Business Professor and Management Consultant
    • Jimmy was the driving force behind our success. - Greg T, CEO

    Publications & Interviews


    in the book Maturing Leadership: How Adult Development Impacts Leadership 

    with Forbes contributor and author of Wired for Disruption, Henna Inam

    World’s largest study to measure organizational culture using vertical development stages



    Jimmy Parker
    jimmy@vertical.dev
    (404) 969-5323

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