Tetra Tech helps clients reduce risk and protect people through process safety and resilience services.

We support safety case development for high-risk operations and emergency response planning for organisations exposed to environmental disaster. Across the UK’s industrial, property, water, energy, transport, buildings, infrastructure, and defence sectors, we combine the agility of a small business with the strength of a global organisation.

Our team provides comprehensive process safety services, including risk identification, evaluation and mitigation, supported by deep regulatory expertise and tools such as quantitative risk assessment and consequence modelling to strengthen compliance and decision-making for safer, more resilient operations everywhere.

Our expertise
We support industrial clients with planning, due diligence, permitting, operation and change, with services tailored to complex and high-hazard sites.

We work with industrial operators, property owners and asset managers to help them navigate regulatory obligations, operational change, legacy liabilities and major hazard risk. Whether the requirement is early-stage advice, technical assessment, operational support or delivery of change, we can draw on the right specialists at the right time.

Our expertise includes:

• Environmental permitting and compliance
• Environmental coordination and regulatory support
• Ground risk, contaminated land and remediation
• Air quality, odour and emissions
• Hydrology, flood risk and drainage
• Water and wastewater
• Environmental due diligence and strategic advisory
• Process safety and major hazard management
• Hazard identification and risk assessment
• Hazard studies, QRA and consequence modelling
• ATEX, DSEAR and COMAH support
• Fire engineering and fire risk support
• Asbestos and legionella consultancy
• Machinery safety assessments
• Independent audits and assurance
• Decarbonisation and emerging technologies