ETS is one of the leading Private Detective & Security Agencies in the United States
We provide best-in-class information, investigative, security, consulting, and training services to clients throughout the United States and abroad.

We primarily service Business to Business (B2B), Business to Government (B2G), and Business to Education (B2E) clients. Support for Business to Consumer (B2C) cases is generally limited to those which are direct referrals from an attorney or an  existing client.


Message from the Executive Team

The ETS team continually strives to exceed client expectations in every matter.

Our team of over 40 experienced investigators and security consultants in the Chicago area and several hundred more nationwide can handle all types of cases. Our practice areas include background screening, employment investigations, social media and online investigations, digital forensics, surveillance, hostile termination security, biometrics, and many types of training for employers and software programs.

Please take a look around the site and let us know how we can assist you!

Background Checks

human resources
employment screening
background checks
criminal records check

Existing screening clients click below to access our secured portal to enter your background search requests.

New Clients: (847)665-0400 to get set up!

Hire ETS


New matter? No Problem!

The link below takes you to our online case assignment portal. We'd love a phone call or an email too if that's easier!

Livescan Fingerprinting

private detectives
private investigators
security guards
off-duty police
background checks

10 N. Martingale Rd Suite 400

Schaumburg, IL 60173

(847) 665-0400 or