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4 Square offer services such as hazardous area equipment management, training, consultancy and equipment integrity assurance in all industry sectors.


4 Square Engineering Consultancy Limited is a specialist engineering consultancy founded on over two decades of experience in safety engineering and improvement of safety in the workplace.

We enjoy providing a wide range of specialist consultancy services dedicated to and often tailored specifically to client requirements.

We are active in many industrial sectors such as petrochemical, food and beverage, manufacturing, pharmaceutical, defence, utilities, water treatment, power generation, mineral extraction, semi-conductor manufacture and aerosol manufacture.

Our main consultancy services are listed below. We will be pleased to discuss any of these with you. Please contact us to discuss your particular requirements.

  • ATEX compliance and DSEAR compliance.
    • Gap analysis
    • Equipment auditing and inspection
    • Risk assessment
    • Explosion protection documents
    • Preliminary assessment of workplace inventory / activities
    • Creation of major accident prevention policy
    • Creation of emergency response plans
    • COMAH compliance audit
    • Creation of emergency response exercise scenarios
  • Process Safety Engineering Studies
    • SIL assessment (LOPA, risk graph, etc.)
    • PHSER (Project Health, safety & Environmental Review)
  • Training
    • Safety
    • Instrument / electrical engineering
  • Machinery Safety
    • Equipment auditing and inspection
    • Risk assessment
  • Health and Safety Compliance
    • Health and Safety Compliance
    • Advise on health and safety compliance requirements
    • Workplace health and safety auditing
    • Health and safety procedures / policies
    • Personnel competence assessment systems
  • Fire Regulations
    • Fire risk assessments
    • Workplace fire regulation compliance audit
Our Services