David McKelvie is the director of DMcK Management Pty Ltd, trading as SAFE MIX.

DMcK Management Pty Ltd commenced trading in December 2012 and has since worked closely with many Australian workplaces inclusive of publically listed companies, family businesses, industry associations, law firms and government/industry partnerships.

SAFE MIX was registered as a business name in May 2014 to reflect the services being undertaken by DMcK Management Pty Ltd.

SAFE MIX provides a personalised service and mix of Workplace Health and Safety solutions to assist in reducing your Workplace Health and Safety risk profile to an acceptable level, therefore improving your Workplace Health and Safety culture and your WHS performance.

SAFEMIX focuses on three fundamental elements of sustainable WHS Management


  1.  Verify what you’re doing and identify what you’re not doing,
  2.  Advise through facilitation of learning and provision of knowledge, and
  3. Challenge, so as you continually improve and sustain that improvement!

These 3 fundamental elements are purposely designed to support Workplace Health and Safety Professionals and Business Owners in ensuring that accountability for WHS performance belongs to those who manage the business.



David began his career as a concreter in the construction industry and has always valued and utilised the lessons he learnt in those early years, primarily an intimate understanding of and respect for the values and concerns of the people he worked with.

David’s passion for Workplace Health and Safety (WHS) was formed in those early years, often witnessing serious workplace incidents and always wondering why this seemed so acceptable and just part of the job!

David operated his own concrete contracting business and has experienced over ten years in quarry and concrete plant operational management prior to taking on the never ending challenge of a career in Workplace Health and Safety Leadership in 1993.

David has learnt through many years of WHS Leadership that sustainable and continual improvement in WHS performance is only achieved through intentional and collaborative behaviour at all levels from the floor to the board room.

This behaviour is based on respect of others, understanding their roles and responsibilities, realising the potential risk people are exposed to and requires an organizational culture that thrives on accountability and results.

Having worked as a concreter, an operations manager and an executive gives David a unique insight to the workings that are required to bring people together, so as to achieve and share an equitable and successful WHS journey.

Prior to the establishment of DMcK Management Pty Ltd, David held the position of National Health and Safety Manager of Holcim (Australia) Pty Ltd reporting to the CEO and the Board Safety, Health and Environment Compliance Committee. David has held senior positions in OHS since 1993 working both in Australia and internationally.

Qualifications and Education

  • Graduate of IMD OHS Leadership Program. Lausanne Switzerland, 2010
  • Graduate Diploma of Occupational Hazard Management, University of Ballarat, 2005
  • Safety Health and Environment Lead Auditor (QSA) Chisholm Institute 2004
  • Certificate 4 in Workplace Training and Assessment, Australian National Training Authority, 2000
  • Quarry Managers and Shot Firers Certificate, Department of Minerals & Energy Victoria, 1997
  • Diploma of Occupational Health and Safety, National Safety Council of South Australia 1994

Industry Association Memberships

  • Certified Generalist OHS Professional Member of the Safety Institute of Australia
  • Associate Member of the Construction Materials Processors Association of Victoria
  • Member of the Quarry Institute of Australia