ESS Laboratory is a full service analytical laboratory that is dedicated to providing engineering consultants, industry and government with high quality analytical data and superior customer service. We pride ourselves on our reputation for providing accurate data and meeting the expectations of our customers. ESS Laboratory maintains several State and Federal certifications and approvals, and has been NELAC Accredited since 2005.

Our 18,000 square foot laboratory facility is designed for maximum production efficiency and safety. It is equipped with state of the art automated instrumentation and computerization including on-line access to analytical data. Our technical staff is a highly skilled group of degreed chemists and scientists with diversified experience in environmental analysis, managed by a knowledgeable team of professionals who are dedicated to quality and customer satisfaction.

Our parent company, Thielsch Engineering, Inc, is a rapidly growing, employee owned company, comprised of over 500 people, providing a broad range of engineering, laboratory, and fabrication/repair services. Thielsch corporate headquarters is located in Cranston, Rhode Island with branch operations in Florida, Maine, Ohio, Texas, and Wisconsin. For more information about Thielsch Engineering, Inc, visit their web site at

ESS Laboratory
185 Frances Avenue
Cranston, RI 02910

 (401) 461-7181 (p)
(401) 461-4486 (f)
M - F, 8:00 am - 5:00 pm EST