We deliver solutions through our family of companies with seamlessly integrated staff of engineers, scientists, and related technical and project support personnel.  We serve our clients from offices in the United States, Canada, the United Kingdom, Ireland, and Australia.

As a global business, Geosyntec maintains websites uniquely suited to clients of our consulting and engineering services, and our products across the globe. Visit our websites to learn more about how Geosyntec can help you overcome your most difficult challenges.

Geosyntec Consultants

Consulting and engineering services related to the environment, natural resources, and civil infrastructure

Website: geosyntec.com


Leading-edge remediation technology development and testing

Website: siremlab.com


The exclusive vendor of STAR and STARx technology for the safe and effective treatment of contaminated soil and liquid organic waste

Website: savronsolutions.com

Geosyntec Europe

All consulting and engineering services in the United Kingdom and Europe

Website: geosyntec.eu

CAT Alliance

CAT Alliance Ltd. is a joint venture company owned by Geosyntec Consultants, COWI, and Tauw

Website: cat-alliance.com