View our Excel tool for process hazard analysis

Unwin Company is a resource of specialists in process safety and risk management, quantitative risk assessment, process hazard analysis, site vulnerability analysis and system reliability management. Incorporated in 1996, we are a company of consultants who have dedicated our long careers to building expertise in process safety, loss prevention, and risk management. For us, risk management is not simply a business direction, but a career commitment.


To our friends and clients:
This year we celebrate the 20th anniversary of Unwin Company, and we'd like to thank you. The key to our continuing success is our clients' understanding of the distinction brought by career dedication to our discipline: the analysis and management of process safety, risk and reliability. Your appreciation of this distinction is our advantage. Thank you again.

Partner in Safety
Unwin Company is a Partner in Safety with logo


cover of 'Essential Practices for Managing Chemical Reactivity Hazards'
Free CCPS Publication
Unwin Company consultants authored the AIChE Center for Chemical Process Safety book Essential Practices for Managing Chemical Reactivity Hazards under the guidance of the CCPS Reactive Chemicals Subcommittee. Because of the widely recognized importance of this information, CCPS, U.S. OSHA, U.S. EPA, American Chemistry Council, SOCMA, and have supported making the entire text of this book available for free access at