Cardno ChemRisk

ChemRisk is an internationally-recognized scientific consulting firm that focuses on understanding the hazards posed by chemicals in foods, soil, sediment, air, water and medical devices. Its principal focus is on risk assessment – in particular, the impact of chemicals on human health and the environment.

Headquartered in San Francisco, California USA, Cardno ChemRisk has eight locations in the United States serving clients in multiple countries and a variety of industries. The 95-person team consists mostly of PhD and Masters-level scientists with backgrounds in the areas of toxicology, industrial hygiene, epidemiology, ecotoxicology, environmental sciences, medicine, engineering, statistical analysis and risk assessment.

The team works in four core areas: occupational health and safety, product sustainability, consumer product safety and contaminated site evaluations.

ChemRisk is led by Dr Dennis Paustenbach, a board-certified toxicologist and industrial hygienist with nearly 30 years’ experience in risk assessment, environmental engineering, ecotoxicology and occupational health.   He says of the merger: “A partnership with Cardno provides significant opportunities to expand our services to existing Cardno clients, as well as opportunities for our staff to expand their careers on a global landscape.”


ChemRisk works with clients around the globe to improve the health and safety of their products, operations, workers, the public and the environment.  It brings a wealth of knowledge to Cardno and complements its current infrastructure and environmental services. Areas of special expertise include:

• Crisis management
• Epidemiology
• Exposure assessment and dose reconstruction
• Health and environmental risk assessment
• Nanotechnology
• Occupational health and safety sciences
• Product sustainability
• Regulatory compliance
• Risk communication
• Toxicology and ecotoxicology

For more information on ChemRisk’s services and expertise, visit the website


Clients of ChemRisk include, among others, major product manufacturers such as Johnson & Johnson, Dow Chemical, Ford Motor Company, Exxon, Shell and Caterpillar.​


* Photo features Paul Gardiner, President - Cardno USA, Dennis Paustenbach,
President and Founder - ChemRisk,Todd Williams, Division Manager/President -
Cardno ENTRIX and Dick Firth, Strategic Development Director - Cardno ENTRIX.