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A-1 Detective Agency

(773) 818-8969
A-1 Detective Agency


Mention ServeNow to receive: 5% discount if you mention NAPPS

A-1 Detective Agency, Inc. is a full-service private investigation agency based in the Chicago Land area of Illinois, providing professional, confidential investigations and related services to clients throughout 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 screening and more.

Your case is as important to us as it is to you and every case we conduct is handled with the highest level of professionalism, diligence and expedience. We utilize the latest information sources, equipment and investigative techniques available to help ensure we obtain the results you need.


  • Witness statements
  • Scene documentation
  • Skip trace Process service - difficult serves are a specialty *
  • Case analysis, trial preparation, evidence management
  • Judgment collection
  • Asset discovery

Service Guarantee

"First attempts are made within 72 hours"

Areas of Coverage

  • State of Illinois and Nationwide


  • N.A.P.P.S.
  • N.D.I.A.
  • N.N.A.-Mobile Notary

Member Info

Darryl Ellis
(773) 818-8969
1751D Howard St. #149
Chicago, IL 60626

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

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Office Location

1751D Howard St. #149
Chicago, IL
(773) 818-8969