Hazardous, Non-Hazardous, and Radioactive Waste Management

NSSI is a full-service environmental company with a solid reputation of providing safe and reliable solutions to organizations in all industries. NSSI is a fully permitted RCRA Part B hazardous waste TSDF and one of only three facilities in the United States providing storage and treatment of hazardous, radioactive , and mixed waste.

We are Serving Clients Across the U.S.
with dedicated representatives in

HOUSTON   |   KNOXVILLE | 713.641.0391


Since 1971, NSSI has supported the government, education, pharmaceutical, power generation, oil & gas, and aerospace sectors with our hazardous and radioactive waste management expertise.

We understand the importance of providing timely & concise service. Our operating procedures revolve around expediting every step of the process while adhering to the highest standards of safety and compliance.