
OBG CONTRACTING · Specialised Solutions
Project Management &
Engineering Consultancy
OBG Contracting provides expert project management and construction solutions across Western Australia’s mining and public infrastructure sectors. Delivering complex projects with precision, OBG ensures certainty at every project stage, from feasibility to execution.

On-site leadership that keeps project team aligned, milestones met, and maintains high safety and quality standards.
Construction Management

From inception to commissioning, we deliver structured project leadership that safeguards budgets, timelines, safety, and stakeholder outcomes.
Project Management

Access to specialised project management professionals at every level, ensuring expertise from planning through to delivery.
Expertise & Management

We ensure your organisation is fully prepared to move from planning into execution.
Project Execution

Independent risk reviews, supported by contingency planning. Construction risk assessment workshops that identify HSE risk and ensure safety is built into every stage of the project.
Project Risk Assessment

Streamlined tender preparation, vendor evaluation, and cost estimating to secure reliable contractors and competitive pricing.
Tendering & Bidding
Our Services
Mining Infrastructure. Roads. Bridges

Project Management
Partnering with you to manage projects that add insight, value, and certainty.
Our project management teams have extensive experience with the procurement, construction, and commissioning of resource sector and public infrastructure projects. At OBG, we do more than just manage projects; we improve them, provide perspective, add value, and increase bottom-line success. Our specialized services includes:
- Client representation to oversee and manage project delivery.
- Project scope and management plans that aligns with clients’ goals.
- Project planning and scheduling throughout project cycle
- Project budget development and stakeholders’ approval management.
- Stakeholder consultation and communications management.
- Risk and opportunity assessment ensuring that the risk are tracked from project inception through to execution.
- Project safety risk assessment and managing safety in design process.
- Project design co-ordination in collaboration with our design partners or the client nominated designer.
- Provision of specialised skilled project management personnel including, Project Directors, Project Managers, Bid Managers, Project Engineers, Supervisors, Planners, Project Surveyors, Estimators and Contract Administrators.
We aim to set the standard in project management while partnering with you at every stage.

Construction Management
On-site leadership that keeps project team aligned, milestones met, and maintains high safety and quality standards.
We work for Owners, EPCM companies and contractors and provide project coordination, construction planning, site management, and project control services.
- Ensure project teams maintain high standard of safety and quality on site.
- Facilitate project Critical Risk Assessment Workshop (CRAW).
- Manage contractors and client relationships and correspondence.
- Track project schedule and ensuring that key project milestone are achieved.
- 4D construction planning in all phases of project delivery including construction methodology staging in 4D.
- Site inspections and contractors’ supervision.
- Technical query management and co-ordinating with designers.
- Assess progress and variation claims.
- Forcast project cost.
- Manage and defend contractual claims.
- Manage communication and progress report updates for stakeholders.
- Prepare and defend time extensions on projects.
- Quality assurance and controls.

Project Execution Readiness
We ensure your organisation is fully prepared to move from planning into execution — reducing risks, preventing delays, strengthening stakeholder confidence, and increasing the certainty of project success.
- Independent readiness review of project scope, schedule and budget.
- Verify resources, skills and vendor alignment.
- Risk assessment with practical mitigation strategies
- Facilitate project stakeholders and kick-off meetings and workshops.
- Setup workflow and communication framework
- Safety, environmental and community impact risk assessment evaluation.
- Project schedule and cost sensitivity analysis
- Review cost reporting structure ensuring accurate cost forecasting.
- Quality control and assurance audits to ensure the project meets quality standards.
- Ongoing readiness monitoring and improvement recommendations.

Tender Bidding and Cost Estimating.
Tender bidding and estimating are crucial procurement processes ensuring that tenders are managed fairly and competitively. Our service includes:
- Tender process management in accordance with client procurement process.
- Preparation of tender documentation and communication with vendors and or clients.
- Bid evaluation based on client criteria such as price, experience, safety performance and technical capability.
- Project risk and opportunity assessments and contingency planning.
- Compare multiple vendor quotations.
- Estimate cost and prepare pricing schedules.
- Negotiate and finalise contract awards to contractors and suppliers.
Our Other Services

Expertise & Management
Access to specialised project management professionals at every level, ensuring expertise from planning through to delivery.

Estimating
Vendor comparison, detailed cost estimating, and budget development for stakeholder approval.

Quality Audits
Structured, independent, and planned assessments to evaluate a project’s compliance with specifications and organizational policies.





Why choose us?
We deliver industry-leading project management, providing dependable expertise and partnership through every stage of the project lifecycle

Integrity
We act with integrity in every decision and action — demonstrating honesty in our communication, respect for our people and partners, and accountability for our commitments and outcomes.

Safety
We are committed to building and sustaining a safety-first culture through daily conversations, proactive interactions, and continuous training — empowering every individual to safeguard themselves and the safety of others.

Teamwork
We believe teamwork drives success. By collaborating effectively and promoting inclusion, we strive to create an environment where outstanding results are possible to every project.




