Shielding Integrity Services, Inc., (SIS)  was founded in 1988.  We offer over 75 years combined staff field experience in performance testing of all types of radio frequency shielding, semi-anechoic, fully anechoic chambers and open area test sites on a worldwide scale. 
We have the capabilities to test any type of shielded or anechoic chamber, regardless of size or world location.
SIS is success oriented:  We will troubleshoot performance anomalies and go quickly and directly to the source of the problem. Then, when possible, we will lead any efforts in correcting the condition. All of our equipment is modern, up to date and in current calibration, supported by many custom built accessories and peripheral equipment. 

SIS is not affiliated with any chamber manufacturers or contractors. We are a completely independent third party performance evaluator.

Our subsidiary, Probotic Systems, offers patented and custom designed dielectric probe positioners, quiet zone scanners and other accessories used in chamber performance testing.