Assiduous Management Services

Personal, Professional, Proven Results

Areas of expertise

Project Readiness Review

Our team of experts are methodical at reviewing current project performance and determining key areas of improvement.

Project Feasibility and Initiation

How to determine if your project is feasible and how to best initiate it.

Project Health Checks

We review the project in-depth and ensure strategies and methodologies are in place for successful completion.

About the company

Established in 1995, Assiduous Management Services has played a key role in many large and complex construction projects around the world specialising in the successful delivery of:

  • Mega Projects
  • Complex Projects
  • Recovery of projects under stress
  • Project readiness reviews

Our team of project personnel have extensive experience in the skilful delivery of projects and have successfully countered numerous challenges on projects in various industry sectors and parts of the world. 

Meet The Team

Trevor Jarvis

Trevor Jarvis

Trevor has over 30 years’ experience on many complex, large projects as either the Estimating Manager or Estimator. Having participated in Owner, EPCM and EPC teams Trevor brings strong knowledge and competencies to support all aspects of project delivery.

Graham Downes

Graham Downes

Graham has more than 30 years’ experience as Project Manager / Portfolio Manager leading cultural change and use of technology to transform a diverse range of organisations. Originally in the Construction / Manufacturing sector however more recently in the financial / aviation sector utilising his Engineering roots.

Greg Gibbon, Owner of Assiduous Management Services

Greg Gibbon

With over 30 years’ experience on major infrastructure projects.

He brings valuable insight for clients, particularly in respect of Project Overview, Planning and Control.

Brian Dixon

Brian Dixon

Brian D has more than 30 years’ experience on complex, large projects as the Project Manager or Commissioning Manager. He is an outcome focussed individual who typically develops a dedicated successful team with him.

Garry Martens

Garry Martens

Garry has been a successful Project Director / Delivery Manager on many complex, large projects all with envious safety records. The industries have ranged across infrastructure, mining, processing, water/wastewater, rail, materials handling, power stations, telecommunication and oil & gas.

Hans Picard, Assiduous Management Service

Hans Picard

Hans is an international management consultant with 40 years construction execution planning, risk analysis and performance management on large energy, process and mining projects. Demonstrated breakthrough productivity and business results in engineering, construction, maintenance shutdown and production.

Jeff Spence

Jeff Spence

Jeff has over 20 years’ experience on complex, large projects more recently as the Project Manager. He is an outcome focused individual who usually has a dedicated successful team with him. He has a track record of mentoring and developing his teams.

Greg Klamus

Greg Klamus

Greg K has significant experience both as a senior line manager of operations and maintenance businesses and as Project Manager/Project Director/Project Board Chairman of major projects and programmes.

Neil Tregea

Neil Tregea

Neil has over 30 years’ experience as a successful Project Director on many complex, large projects all with envious safety records. The industries have ranged across infrastructure, petroleum, mining, processing, fabrication, materials handling, power and energy.

Previous Projects