What we do. How we do it.

At GAT Consulting we have demonstrated expertise in providing Program/Project Management​ and Consulting services in Business Transformation & Change, Human Resources, Learning & Organisational Development.  We also provide Project Engineering services in Australia and internationally.

We work with a broad spectrum of clients from SME to multinational corporations, and governement organisations. We tailor our solutions to suit our clients’ requirements and budgets.

We also provide coaching and emotional intelligence assessment services as well as career counselling to individuals on a one off or ongoing basis.

Human Resources / Learning & Organisational Development

We develop integrated solutions for our clients in all people and workplace related matters, and ensure these are aligned with organisational objectives.​ We also provide discrete or ongoing HR advice on demand, actings as trusted advisors. 


coaching & emotional intelligence


We provide coaching, emotional intelligence assessments and support, professional development and career counselling services.




Business & Change Management Projects


Program/project management of a diverse range of projects from small transactional projects to large scale transformational programs, project governance, PMO activities, project implementation, PPM implementation, change management, training and communications, and business performance and integration.


We also provide interventions aimed at engaging staff in the change, minimising resitance based on sound psychological principles.


Project management & Engineering

PMO activities, front end design, HAZOP/CHAZOP management, contract management, procurement, construction management, site supervision, work permits, commissioning & maintenance.

our team

Our team consists of two principal consultants. We also engage additional consultants with relevant expertise to assist us on projects as required.

Annette Temmhoff

Annette is a HR/OD professional with 20 years’ experience across numerous industries in both Australia and Asia.  Her experience includes managing the HR/L&D function for a global strategy consulting company across seven offices in the Asia/Pacific region; assisting with the establishment of a HR service centre in Malaysia for a MNC and working on a significant change program; establishing and managing an HR function for an Australian subsidiary of a MNC following an M&A; and working as a recruitment consultant with a focus on professional services, government and large MNCs. Additionally, Annette works as a sessional lecturer and facilitator in Strategic HR, HR Development​ & Leadership.

Annette holds a Master of Human Resource Management, for which she won the Australian Human Resources Institute’s (AHRI) Award for Outstanding Achievement (Dux).  She also holds a Bachelor of Psychology & Management, a Graduate Diploma of Business (HRM), and a Certificate IV in Workplace Training & Assessment.  She is an accredited MBTI® and Emotional Intelligence (EQ-i2®) practitioner.  She is also qualified to administer a wide range of psychometric and skills based testing.

gerd temmhoff

Gerd is a results oriented Program/Project Manager (PMP certified) with 20+ years’ experience recruiting, leading and developing global and local teams. He has extensive experience in business transformational change, PMO establishment, project management, governance and PPM implementation.

Gerd’s experience includes working for a large MNC implementing large scale transformational change programs throughout the Asia Pacific region, as well as consulting to privately owned corporations and government in both program and project management.

Gerd is also a highly skilled Engineer with sound experience managing engineering teams and projects in the oil & gas industry spanning Aviation, Fuels, Bitumen, Distribution Terminals and Third Party Engineering Consulting, including design, construction, HAZOP/CHAZOP management, commissioning and maintenance.

Gerd holds a Bachelor of Engineering – Chemical (Hons) and is a fully certified Project Management Professional (PMP).