For more than 30 years, RSSI has been a national leader in radiation safety and radiological health consulting.  Since its founding in 1975 by Herman Cember and Eli Port, RSSI's goal has been to serve clients with cost-effective solutions to keep people safe and clients in compliance.

RSSI provides our clients with:

• Radiation safety support and consulting on regulatory issues

• Ongoing radiation safety program management and support

• Technical expert and public communication assistance

•  A full service radiological laboratory

• An in-house radiation survey meter calibration range  

Our comprehensive experience, diverse radiation safety services and commitment to innovative solutions has enabled us to build lasting relationships with a broad base of clients from business and industry, medicine, academic institutions, and state and federal government agencies. Learn more about RSSI's history. 

RSSI manufactures and analyzes the most accurate alpha track radon gas test kit available today.

• Purchase a home radon gas test kit or check the results of your home or professional use radon gas test kit

• Learn more about radon, the health risks of radon gas, and how to check your home or building for radon gas

For more information about RSSI, our services or products, please contact us.

RSSI is authorized under Illinois Emergency Management Agency License IL-01429-01, recognized by the US Nuclear Regulatory Commission and all Agreement States. Canadian services are authorized by Canadian Nuclear Safety Commission R116 and R117.