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A-1 Detective Agency

A-1 Detective Agency

At A-1 Detective Agency, Inc., we specialize in providing attorneys, businesses, and private individuals with professional investigation and services, in the state of Illinois. We offer a wide range of professional services to law firms, insurance companies, businesses, organizations, and private individuals, including criminal & civil investigations, missing person locates, background screenings, and more.


  • Criminal and Civil Investigations

Service Guarantee

1st attempt made within 2-5 days
Rush Service-Attempt the same day.

Areas of Coverage

  • Nationwide
  • Cook, Will, Lake, Mchenry,


  • ACFE

Member Info

Darryl Ellis
(773) 818-8969
33 N. County Street , Suite 507
Waukegan, IL, 60085

The Lawgical Promise The Lawgical Promise guarantees this member has been pre-screened to verify their qualifications.

E&O Insured
Western Union, American Express, Visa, MasterCard, Check, PayPal
Service Guarantee

Office Location

33 N. County Street , Suite 507
Waukegan, IL
(773) 818-8969