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Our Leaders

Principals. Partners. Trusted Advisers.

Deep Waters is led by co-founders Nick Harvey and Giselle Wansa-Harvey, whose complementary experience spans the Public, Commercial and Civil Society sectors.

Senior judgement, directly applied.

You work directly with senior advisers—no layers, no handovers.

You work with principals who bring the experience, judgement and stewardship needed to navigate complexity.

  • Experienced

    Decades of senior leadership across the Public, Commercial and Civil Society sectors.

  • Principal-led

    Every engagement is personally led by a principal.

  • Trusted

    We earn trust through integrity, discretion and delivering on our promises.

  • Impact focused

    We work alongside clients to achieve meaningful, lasting outcomes.

Our Principals

Portrait of Nick Harvey

Nick Harvey

Co-founder & Principal

Nick is a trusted commercial adviser and business leader with over three decades of experience leading and helping organisations navigate growth, transformation and complexity.

He combines strategic clarity with practical commercial judgement, aligning people and priorities to deliver measurable results.

Nick’s commercial perspective was shaped early with Enterprise Cars in the United States. After progressing through its management pathway, he led the Love Field Airport operation in Dallas, responsible for a fleet of more than 300 vehicles and overall performance. This grounded him in people leadership, profitability and performance improvement at scale.

After returning to New Zealand, Nick acquired an underperforming packaging company in 2002, rebuilt it and sold it in 2008. He has since worked with business owners, executives and leadership teams to strengthen strategy, performance and organisational capability. He also advises boards and governance groups, drawing on direct board experience and a grounded understanding of governance, stewardship and accountability.

Areas of expertise

  • Commercial Strategy
  • Governance
  • Executive Leadership
  • Strategic Facilitation
  • Business Growth
  • Organisational Performance
  • Mergers, Partnerships & Collaboration
  • Leadership Development
Portrait of Giselle Wansa-Harvey

Giselle Wansa-Harvey

Co-founder & Principal

Giselle is a senior adviser and leader with more than two decades of experience across government, public policy, institutional reform and community transformation.

She combines strategic insight with a collaborative, pragmatic approach and a steady, values-led leadership style. Known for maintaining clarity and resolve in demanding environments, Giselle helps leaders navigate complexity, strengthen organisational and system capability, and translate policy intent into meaningful outcomes for people and communities.

Giselle’s public-sector perspective has been shaped by senior roles across Australian federal and state governments and New Zealand’s public sector. Her work has involved complex transformation and reform across government departments and Crown entities, giving her a practical understanding of how policy, institutional settings and operational delivery intersect across different jurisdictions.

She draws on this breadth to guide leaders through demanding reform and transformation—connecting strategic intent with the structures, capability and delivery disciplines needed to achieve sustainable, real-world results.

Areas of expertise

  • Government Transformation
  • Organisational Transformation
  • Public Policy & Reform
  • Governance
  • Community Capability & Social Impact
  • Workforce Capability
  • Stakeholder Engagement
  • Cross-sector Collaboration

Our network

Our network. Your advantage.

We deliberately remain principal-led while maintaining a trusted network of specialists and delivery partners—bringing the right expertise at the right time.

Leadership & CoachingGovernance & BoardsStrategy & TransformationCommunity DevelopmentDelivery PartnersSubject Matter ExpertsDeep Waters Consulting

Typical network expertise

  • Leadership & Executive Coaching
  • Workforce Capability
  • Governance & Boards
  • Community Development
  • Strategy & Transformation
  • Digital & Data
  • Programme Delivery
  • Facilitation & Engagement
  • Commercial & Procurement
  • Subject Matter Experts
Two consultants walking along a waterfront boardwalk at sunset