Ruppert Detective Agency LLP
  • Contact Name:

    David P. Sterner

  • Primary Phone:


  • Secondary Phone:


  • Fax:


  • Established:


  • Mailing Address:

    1505 S George St
    York, PA 17403

About Ruppert Detective Agency LLP

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!



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


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


  • York County, Pennsylvania
  • Lancaster County, Pennsylvania
  • Dauphin County, Pennsylvania
  • Cumberland County, Pennsylvania
  • Adams County, Pennsylvania is a partner site of