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Leisha John is a seasoned CPA and ESG Advisory expert with over 30 years of experience in environmental sustainability, tax, and finance. She has held various leadership positions at EY, including Americas Director of Environmental Sustainability and CEO of Global Shared Services Center. Leisha is also a certified public accountant and holds a degree in accounting from the University of Montana.

Credentials

  • ESG Certification
    Competent Boards
    Dec, 2021
    - Apr, 2026
  • LEED Accredited Professional
    USGBC
    Dec, 2008
    - Apr, 2026
  • Member
    Florida Institute of CPAs (FICPA)
    Sep, 2021
    - Apr, 2026
  • Member
    American Society of CPAs
    Jan, 2021
    - Apr, 2026
  • Certified Public Accountant
    Montana Board of Public Accountants
    Feb, 1984
    - Apr, 2026

Experience

    • Earthwatch, Chair
      • Sep 2017 - Present
      • Americas

    • Americas Director of Environmental Sustainability (CSO/ESG)
      • Apr 2008 - Sep 2021

      I pioneered EY’s Chief Sustainability Officer (CSO) / Environmental Social Governance (ESG) role for the Americas practice of over 30 countries, 180 offices, 75,000 employees and $17B in revenue. For over a decade, I engaged with multiple stakeholders (C-suite / Global and Americas Executive Board members, employees, clients, vendors) to set the course for EY’s ESG journey. Capitalizing on emergent opportunities in the dynamic ESG arena, I drove the professional services sector’s demand for sustainable (LEED) commercial office space, initiated a substantial energy efficiency project in EY’s US headquarters, spearheaded renewable energy investment in two large-scale windfarms, initiated climate risk scenario planning, harmonized EY’s sustainability reporting efforts globally and published an award-winning sustainability report for EY Americas.

    • CEO of Global Shared Services Center - Bangalore & Gurgaon, India
      • Sep 2004 - Mar 2008

      As the CEO of EY’s Global Services Center in India, I transformed the firm’s service delivery model and scaled its offshore workforce, growing headcount 10x. I established new operating models and go-to-market practices that catapulted extraordinary growth in the depth and breadth of service offerings. The Center laid the foundation for EY’s backbone of global capabilities which remains the catalyst for billions of dollars of continued growth today. In addition to these business successes, on a personal level, I was proud that the job creation elevated thousands of Indians into the middle class.

    • Director of Strategy and Innovation
      • May 2001 - Aug 2004

      I pioneered this role for EY's National Tax Compliance Practice, which resulted in strategy and innovation being baked into the fabric of the organization and remains a foundational engine for continued growth today.

    • Reengineering Leader / Director of Large-scale Implementations
      • Sep 1995 - Apr 2001

      In this role, I was a leader in a large-scale reengineering effort that addressed every aspect of EY’s tax compliance operations, transforming professional services delivery at EY. I was named the Implementation Leader for the new business processes and enabling tools, responsible for deploying them across the US, in over 100 offices.

    • Client Server - Tax
      • 1991 - Aug 1995

      Led tax services delivery for clients in the venture capital, commercial real estate and not-for-profit spaces.

    • Sr. Tax Manager
      • 1989 - 1991

      Provided tax consulting and compliance services to high net-worth individuals and businesses.

  • Arthur Young
    • Anchorage, San Francisco, New York City
    • CPA / Client Server
      • Nov 1983 - May 1989
      • Anchorage, San Francisco, New York City

      Audit and Tax service delivery for clients in real estate, law, financial services and not-for-profit sectors as well as entrepreneurial companies in emerging and strategic growth markets.

Education

  • 2021 - 2021
    Competent Boards
    Certificate, ESG for Boards
  • 2021 - 2021
    Briyah Institute
    Certificate, CEO Meet and Master
  • 2015 - 2015
    The Climate Reality Project - Leadership Training
    Climate Reality Leadership Training - Delhi, India (Feb 2015) & Miami, FL (Sept 2015)
  • 2016 - 2016
    Miami Dade College
    Environmental Science
  • 2010 - 2010
    ISOS
    Certification for completing GRI Training, GRI Sustainability Reporting
  • 2008 - 2008
    Everblue Training
    LEED Accredited Professional
  • 1979 - 1982
    The University of Montana - School of Business Administration
    B.S., Accounting

Suggested Services

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Industry Focus. “Accounting”

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