Klein Investigations provides professional process service for attorneys, law firms, and legal organizations throughout Texas.
Our process service division supports the legal community with reliable, timely, and compliant service of legal documents. We understand the importance of accuracy, proper documentation, and adherence to legal requirements in every assignment.
As Rule 103–certified process servers, our team is experienced in handling routine and difficult serves, including evasive subjects and time-sensitive matters.
Process service capabilities include:
• Service of process under Texas Rule 103
• Subpoena service
• Court and legal document delivery
• Detailed service documentation and affidavits
We work closely with legal professionals to ensure service is completed correctly and efficiently.
Lead Investigators in Charge

CEO, Emeritus
Philip R. Klein, TPLI-PPO
Philip Klein is a nationally recognized investigator and personal protection officer with more than 40 years of experience. He founded Klein Investigations in 1992 and has worked extensively with government agencies, law firms, and major insurance companies on complex investigations throughout the United States.

President
Caroline K. Gear, TPLI, M.Ed
Caroline Gear is a licensed private investigator and senior leader at Klein Investigations with more than 17 years of experience in investigative services, child advocacy, and case management. She plays a central role in the firm’s operations and is nationally involved in missing children investigations and family court–related services.

Co-President, Operations
Charles “Charley” Klein, TPLI-PPO
Charley Klein is a senior investigator and operations leader at Klein Investigations with more than 15 years of experience in field investigations, personal protection, and operational oversight. He oversees investigative field operations and equipment management and is relied upon for complex, time-sensitive assignments nationwide.
FAQs
What is Rule 103–certified process service?
Rule 103 certification authorizes qualified individuals to serve legal documents in Texas in accordance with state law. Our process servers meet these requirements and understand proper service procedures.
Who typically uses your process service?
Our process service is used primarily by attorneys, law firms, and legal professionals who require reliable and compliant service of legal documents.
Can you handle difficult or time-sensitive serves?
Yes. We are experienced in handling routine, evasive, and time-sensitive service requests while maintaining proper documentation.
Talk to Our Investigators
Reach out to discuss your situation and learn how our team can assist. All inquiries are handled discreetly and professionally.
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