Awarded contract

PHAST 334 x 2, PHAST 133 x 1, S-13817 x 1

Details

Supplier(s)
DNV UK Limited
Value
£18,339.81
Duration
5 years
Topic
Software package and information systems
Published
28 October 2026

Tender description

The PHAST modelling software developed by DNV is a globally adopted solution for modelling discharge, dispersion, fires, explosions and toxic effects of a wide range of loss of containment scenarios. The software is regularly used by SEAD for commercial projects, HSE funded research projects1 and incident investigation. The tool is often used by both SEAD and CEMHD5 as part of general regulatory activities. It is a tool widely used by industry and duty holders often use it as part of their Control of Major Accident Hazards (COMAH) Regulations report risk assessments and sometimes there is a requirement for HSE to check the method used and the results produced. Currently, PHAST is being extensively used by SEAD for a number of net-zero projects that relate to the key areas of the Government's Ten Point Plan for a Green Industrial Revolution. HSE would not be able to continue supporting this work without continued and easy access to PHAST licences. Within SEAD we also regularly deliver commercial work where we utilise this software. ## Contract award

Timeline

  1. Completed: Award published28 October 2026
    Current notice
  2. Completed: Award date28 October 2026
  3. Next: Contract expiry date31 August 2031in 5 years

About the buyer

Health and Safety Executive regulates workplace health and safety standards across Great Britain as a central government agency. The Department for Work and Pensions sponsors it as a non-departmental public body. Regulatory oversight spans high-hazard sectors including construction, offshore oil and gas, waste management, agriculture and health and social care.

Each year a published commercial pipeline report sets out contracting opportunities for the coming year on GOV.UK.

Over the past 5 years, most of the Health and Safety Executive's contract awards have been in research and development, business services and software and information systems.

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