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CK Investigations, LLC

(715) 581-3020
CK Investigations, LLC


Mention ServeNow to receive: FASTRACK! Whether you’re behind the eight ball or simply have a rush job, our FASTRACK! program assures your case receives immediate attention. CASHBACK! For a limited time only, we're rewarding our repeat customers with a special CASHBACK! offer. It pays to work with the best!

30 years of law enforcement experience and professional training.

Areas only full-time, professionally trained investigative agency dedicated to quick, accurate, and secure results seven days a week, twenty-four hours a day.

Dedicated customer service team with a passion for excellence.

Email: [email protected]


  • Paper & Document Service
  • Secure Document Delivery
  • Professional Investigations
  • Background Check
  • Insurance Investigations
  • Welfare Checks
  • Covert Surveillance
  • Consulting Services
  • Fraud Investigations

Service Guarantee

"Having served as a police officer and detective for over 30 years, I have the professional training and investigative skills to help you get the job done in a professional, timely, and economical manner.
I personally guarantee your satisfaction."
- Charles D. Knapp

Areas of Coverage

  • The State of Wisconsin


  • ServeNow
  • PInow

Member Info

Charles D. Knapp
(715) 581-3020
PO Box 1691
Wausau, WI, 54402
WI 16878-62

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

E&O Insured
Service Guarantee
Special Offer

Office Location

PO Box 1691
Wausau, WI
(715) 581-3020