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Trusted Private Investigation Services in Pittsburgh, PA
Passant & Passant has built a reputation for excellence through decades of dedicated service. Founded in 1990 as Passant & Passant by Ralph and Frank Passant, the company transitioned to Passant & Passant under Rebekah's leadership in 2022, ensuring continuity of expertise. With over 30 years of combined experience, our team leverages modern technologies to deliver thorough investigations tailored to corporate and individual needs across Pittsburgh and beyond. Holding licenses as Pennsylvania Private Investigators and maintaining memberships in the Pennsylvania Licensed Investigators Association and the National Association of Professional Process Servers, we prioritize professionalism, accuracy, and client satisfaction.

Our services span civil, personal injury, liability, and domestic investigations, supported by process service, research, witness interviews, and nationwide surveillance. Frank Passant's legacy of meticulous work remains integral to our commitment to excellence. Every client receives personalized attention, ensuring transparency, reliability, and results that surpass industry standards. This dedication positions Passant & Passant as a trusted partner for complex investigative needs.
Services
Civil Investigation Personal Injury Liability Claims Domestic Investigation Process Service Surveillance Research Witness Interview Pre-Employment Screening Traveling Notary
Highlights and features
  • Licensed Pennsylvania Private Investigators with 30+ years of combined experience
  • Utilize modern technologies for accurate, efficient investigative outcomes
  • Maintain memberships in leading professional associations for accountability
  • Offer nationwide surveillance and process service capabilities
  • Commitment to personalized client service and transparent communication
Associations and certifications
  • Pennsylvania Licensed Investigators Association (PALI)
  • National Association of Professional Process Servers (NAPPS)
Services
Civil Investigation
Our civil investigation services address disputes, fraud, and legal matters with meticulous research and evidence collection. Clients receive detailed reports to support litigation or resolution processes. Our team ensures compliance with legal standards while maintaining discretion.
Process Service
Professional delivery of summons, subpoenas, and legal documents ensures timely compliance with court requirements. We utilize thorough research to locate recipients accurately, providing documented proof of service for legal proceedings.
Surveillance
Nationwide surveillance operations document personal injury, liability, and workers' compensation claims through discreet observation. Our team uses advanced equipment to capture actionable evidence, supporting case outcomes with verifiable data.
Witness Interview
Legally trained professionals conduct structured witness interviews to gather critical information. Timely execution and detailed reporting ensure client needs are met while preserving the integrity of testimonial evidence.
Research
Comprehensive research services include asset verification, public records analysis, and court filings review. Our team delivers actionable insights for due diligence, legal cases, or business decisions with precision and confidentiality.
People
Frank Passant
Investigator
Frank Passant, a licensed Pennsylvania Private Investigator, brings decades of experience in environmental investigation and witness interviews, contributing to Passant & Passant' reputation for excellence.
Rebekah
Investigator
Rebekah leads Passant & Passant with expertise in accident scene photography, background checks, and social media analysis, ensuring modern investigative techniques align with client needs.
Barry
Surveillance Specialist
Barry specializes in surveillance operations, providing discreet monitoring services that support personal injury and liability claims with documented evidence.
Bobby
Process Server
Bobby handles process service, background checks, and location research, ensuring legal documents are delivered efficiently and in compliance with state regulations.
Mona
Office Manager
Mona manages accounts and office operations, maintaining financial accuracy and administrative support to ensure seamless service delivery for clients.
Questions
What services does Passant Investigations offer?
We provide civil, personal injury, liability, and domestic investigations, along with process service, surveillance, witness interviews, and research-based services.
Are your investigators licensed?
Yes, both Frank and Rebekah are licensed Pennsylvania Private Investigators, ensuring compliance with state regulations and professional standards.
Do you offer nationwide services?
Our surveillance and process service capabilities extend nationwide, supporting clients beyond Pittsburgh and Pennsylvania.
How do you ensure client confidentiality?
We maintain strict confidentiality through secure communication channels and adherence to ethical guidelines during all investigative activities.
What sets Passant Investigations apart from competitors?
Our 30+ years of experience, use of modern technology, and personalized approach ensure accurate, reliable results tailored to client needs.