Rose Percival


Key Skills

  • Investment Management decision making
  • Extensive experience in designing and delivering change
  • An excellent strategic thinker
  • Leading business and organisational change
  • Improving corporate governance
  • Strategic and operational performance of corporate functions
  • Analytical, logical and objectively critical

Rose is a highly experienced consultant and senior executive.   She has planned and led many programmes of organisational change and has a strong reputation for the quality of her analysis and her ability to produce high quality results under pressure. She is an experienced organisational and operating model reviewer.

During her varied career in consulting and executive management positions she has been a member of, and chaired, a range of governance bodies. Rose was previously Deputy Secretary, Organisational Development and Support at the Ministry of Justice and Acting Deputy Commissioner at the State Services Commission.

Rose leads Tregaskis Brown’s business case practice.  She has reviewed all significant business cases written by the Tregaskis Brown team, as well as providing advice on other agencies business cases. Rose is a trained ILM (Investment Logic Mapping) facilitator.

Rose is an independent member of the NZ Army Management Board.


  • Bachelor of Laws, Victoria University of Wellington
  • Bachelor of Arts, Postgraduate Diploma in Arts, University of Otago

Recent Assignments 

  • Fire and Emergency NZ - Portfolio support
  • Ministry of Foreign Affairs and Trade - Business Case support for the APEC 21 Programme
  • Ministry of Education - Governance Prioritisation for IMF Team
  • Whanganui District Health Board - Advice on Organisational Design  
  • Department of Internal Affairs - Review of a teams operating model
  • Governance workshops for a range of project boards on-boarding, and for groups of sponsors
  • Advice and support to a large programme to support the re-scoping and planning for delivery
  • Reviews of multiple business cases before they are finalised for the client
  • Support to another large transformation programme in framing the case for investment and change.