Greg Tetzlaff Grad NZISM, GDPP (OHS), Dip NZ Pol

Health and Safety Professional
GNS Science
Wellington Region


I come from a military and policing background having spent 16 years in these environments acquiring a wide range of skills including leadership, risk management, project management, investigation, intelligence analysis and knowledge of the law.

In 2001 I started my own consultancy and grew my business helping organisations manage their risks in the areas of Health and Safety, Risk & Emergency Management and have worked with a wide range of government and private sector organisations. 

In particular I have provided consultancy and project management to large corporates and government agencies such as Transfied Services, (formally Areva and Alstom), Transpower, Office of the Clerk (NZ Parliament), Housing New Zealand, Contact Energy, Wellington City Council, & OMV. 

In 2008 I joined HazardCo, initially as an advisor, and this developed into my current permanent role providing innovative health and safety systems, simple tools, online training, advisory support, H & S performance monitoring and review processes to the construction, manufacturing, farming, and property management sectors. 

I'm also involved in Contractor Management and H & S Review Services to Commercial and Government using technology-based products to provide simple and effective risk management focused H & S Solutions. 

HASANZ Registered
  • New Zealand Institute of Safety Management
  • Graduate Diploma Professional Practice (OHS) - Level 7- Excellence
    Diploma NZ Policing
    Police Investigators, Intelligence Analyst, & Safety Trainer Internal Courses
    QSA Accredited Safety Auditor (RABSQA - Now Exemplar Global Lead Auditor Courses)
    SMS (Safety Management Systems) & ICAM (Investigation) courses
    Certificate Group Fitness (Health and training related qualification)
    Certified Protection Professional (International risk management qual includes investigations component)

My Skills and Experience

Postal address

1 Fairway Drive Avalon
Lower Hutt
Lower Hutt 5010

Street address

1 Fairway Drive Avalon
Lower Hutt
Lower Hutt 5010