Our core service areas



  • Technical Safety

  • Escape, Evacuation and Rescue Analysis

  • Safety Case

  • Quantitative Risk Assessments (QRA)

  • Consequence Modelling

  • Fire and Explosion Risk Assessment

  • Process Safety

  • HAZID/Risk Analysis






SIL and Reliability

  • RAM / Production Assurance

  • SIS Lifecycle/IEC61511

  • Functional Safety Plan

  • SIL Allocation / LOPA

  • Safety Requirements Specification (SRS)

  • SIL Compliance Verification

  • Functional Safety Assessment (FSA)

  • Safety Manual/SAR

  • SIS Performance Monitoring

  • Fault Tree Modelling



barrier and integrity management

  • Barrier Strategy Development

  • Barrier Management System Implementation

  • Bow-tie Analysis

  • Performance Standards

  • Risk-based Maintenance

  • Optimization of test intervals

  • Obsolescence Management

  • Root Cause Analysis


Risk-based Project Services

  • Project Risk Assessment

  • Project Interface Management

  • Operational Readiness Review

  • Cost & Schedule Risk Assessment

  • Integrated Design Reviews (IDR)


Highly specialized risk and safety advisory

Since its foundation, ORS has been involved in hundreds of projects around the world. Our clients typically include asset-owners, engineering- and construction companies or system suppliers. We perform specialist studies, independent 3rd party verifications or contract subject matter experts. Our engagement varies from providing specific studies to delivering full-package risk- and safety services for complex industrial development projects. Few examples are:

  • Delivery of full-package risk- and safety services for an offshore field development project in Mediterranean Sea. (including deliverables related to HAZID, HAZOP, SIL, dropped object studies, EERA, dispersion studies, RAM analysis, active/passive fire protection studies, ENVID etc.)

  • Barrier- and Integrity Management support for numerous subsea tie-back projects, primarily in Norwegian Continental Shelf (NCS).

  • Long-term production assurance/RAM specialist support for a regional gas transportation network operator

  • Functional Safety and SIL Support for multiple asset / facility development projects in Norway, Denmark, Sweden, USA, Australia, Angola, Mexico, Singapore etc.

  • Contracting Technical Safety- and HSE resources for development projects- and operational support in multiple industries (petrochemicals, petroleum, offshore fish-farming, carbon-capture)

  • Facilitation of specialist workshops (HAZID, HAZOP, FMECA, WHAT-IF, SAFOP, SIMOPS etc.) globally

  • Extensive risk- and safety studies involving design- and operations of subsea blowout preventers (BOP)