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Ruppert Detective Agency LLP

(717) 845-6066
Ruppert Detective Agency LLP


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Ruppert Detective Agency is a private investigation and security agency established in 1979 by retired York City Police Chief, Wayne Ruppert. The agency continues on as a family run business, owned by Gail Ruppert. Retired Police Chief David Sterner is Chief of Operations and Denise Mauzy is our Administrative supervisor. You can trust that your case is in good hands with our team! We pride ourselves in our confidentiality and discretion, making us one of the more respected firms in Pennsylvania. Give us a call today and we will get started!


  • Private Investigations
  • Armed and Unarmed Security Officers
  • Process Service
  • Executive Protection
  • High Risk Terminations
  • School Residency Investigation

Service Guarantee

We make every possible effort to serve your legal documents in a timely and professional manner.

Areas of Coverage

  • York County, Pennsylvania
  • Lancaster County, Pennsylvania
  • Dauphin County, Pennsylvania
  • Cumberland County, Pennsylvania
  • Adams County, Pennsylvania


  • National Association of Professional Process Servers (NAPPS)
  • Pennsylvania Association of Licensed Investigators (PALI)

Member Info

David P. Sterner
(717) 845-6066
Phone 2:
(717) 887-3751
(717) 812-0660
1505 S George St
York, PA, 17403
MD 563-2014

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

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Service Guarantee
Special Offer

Office Location

1505 S George St
York, PA
(717) 845-6066

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