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Hannah Brownsey


Contact Details

E: Hannah Brownsey Tel: 44999363

Key skills

  • Experienced leader utilising continuous improvement methodology to improve system performance
  • Significant skill in relationship management, HR management and leading/mentoring individuals
  • A good working knowledge of public/state sector legislation
  • Experienced manager and leader of business improvement, financial management, obtaining stakeholder buy-in, and achieving business goals


Hannah has significant operational and strategic management clout.  She brings considerable experience in Organisational development and Change Management to the Tregaskis Brown team.

Hannah’s passion is leading teams through the difficult and emotionally charged journey associated with organisational change.

Hannah is qualified in Management of Portfolios (MoP™) with experience in helping organisations to achieve strategic objectives. She is a certified PROSCI™ Change Management professional  and has completed the Better Business Case (BBC) Foundation certificate.


  • Postgraduate Diploma in Healthcare Management and NVQ4 Management Skills, University of Birmingham and DeMontfort University (Sep 2003 – Sep 2005)
  • Certificate in Reflective Management Practice, De Montfort University (2005)
  • Bachelor of Science HONS – Speech Sciences (Sep 1999 – June 2003)
  • Towards Strategic Leadership, ANZSOG [2 weeks] (2015)
  • Strategy in Action, University of Queensland [5 days] (2013)


Recent Experience

  • Ministry of Defence, P3M3 Practices - Hannah was one of the team supporting the Defence Capability Change Action Programme with their large and ambitious change agenda. Hannah supported the Programme Manager across a number of projects and took a lead role in facilitating and producing design thinking and high level implementation approaches to new, integrated ways of working across the P3M environment in Defence
  • The Treasury, Trusted Advisor Capability Network - Hannah was engaged in a short piece of work to help the IMAP team in Treasury finalise their Trusted Advisor Capability Framework. This involved applying best practice models to the capabilities identified by the IMAP team and assisting with the final development of the framework and practical tips on implementation
  • Ministry for Culture and Heritage, Work Programme Management and Governance - Hannah was engaged to introduce a new approach to work programme governance and management in MCH. This has involved providing a customised suite of processes and tools to suit the needs of the organisation.  In addition, Hannah provided the Chief Executive with change management support across his wider programme of organisational change
  • Department of Internal Affairs, Review of the EPMO - Hannah was engaged to undertake a review of the current EPMO mandate and structure by the Chief Portfolio Officer to determine whether the EPMO is fit for purpose going into the future. 

For general Enquiries

Tregaskis Brown


+64 4 499 9363

Office Location

Level 8, Berl House

108 The Terrace

Wellington 6011

New Zealand

Postal Address

PO Box 25 242

Wellington 6140

New Zealand