January 26, 2023
REI Celebrates 40th Anniversary

COOKEVILLE, TN |   In 2023, Research Electronics International (REI) will be celebrating 40 years in business designing and manufacturing electronic security equipment. So much technology has changed since 1983 when Bruce Barsumian, a young, self-taught inventor launched REI. Ronald Reagan...

  October 25, 2022
REI Founder Retires

COOKEVILLE, TN – Research Electronics International (REI), recently held a dinner honoring company founder, Bruce Barsumian. This event celebrated more than 40 years of innovation, leadership and dedication as a pioneer in a niche technology industry. In 1983, Barsumian, along with a handful...


World Police Summit
5-7 March 2024

Security and Policing
12-14 March 2024
Farnborough International Exhibition and Conference Centre, Hampshire

MESA® 2.0 One-day Training
April 9th 2024
Harrah’s Las Vegas
MESA® 2.0 One-day Training registration & information

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Research Electronics International

REI manufactures TSCM equipment for technical security applications. REI equipment detects electronic eavesdropping and illicit surveillance devices to protect your organization from information theft. REI provides the tools necessary for corporate, commercial, law enforcement, military, and government technical surveillance countermeasure (TSCM) operations.