FatguyPILicensed Private Investigator
Private Investigator Philadelphia PA
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Licensed PI · Philadelphia PA 19136 · Est. 1990

Philadelphia

Philadelphia's Most Trusted Licensed PI

Headquartered in Philadelphia PA 19136, Gary DeFinis has been the city's go-to private investigator since 1990. Every neighborhood. Every case. Relentless.

(215) 338-3303
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What We Offer

PI Services in Philadelphia

Every service is conducted by a licensed Pennsylvania investigator using 100% legal methods — delivering court-admissible results.

Surveillance

Covert mobile and stationary surveillance with HD video documentation — legally admissible in Pennsylvania courts.

Background Checks

Comprehensive subject profiles including criminal history, financial records, and employment verification.

Person Locates

Skip tracing and nationwide person locates. We find people no matter how well they hide.

Process Serving

Proper service of all legal documents with affidavit of service. Rush service available.

Fraud Investigation

Insurance fraud, workers' compensation fraud, and corporate fraud investigations.

Child Custody

Discreet investigations to document violations of custody agreements and parental fitness.

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Private Investigator Philadelphia Pennsylvania
36+
Years Experience
Why Choose Us

Philadelphia's Most Trusted
Private Investigator

Gary DeFinis has been conducting investigations in Philadelphia since 1990. With deep knowledge of local courts, law enforcement, and geography — he delivers results that hold up.

Philadelphia Court System Expert
Decades of experience presenting evidence in Philadelphia Court of Common Pleas, Federal District Court, and Family Court. We know what sticks.
Every Philly Neighborhood
From Fishtown to Frankford, South Philly to Roxborough — Gary knows every block, alley, and shortcut in the city.
Philly Law Enforcement Network
Extensive professional relationships with Philadelphia law enforcement, attorneys, and the legal community built over 36+ years.
Headquartered in Philadelphia
Based in Philadelphia PA 19136 — we can mobilize surveillance operations anywhere in the city within the hour.
Licensed & BondedPA State CertifiedCourt-Admissible Evidence100% Confidential
Common Questions

FAQ — Philadelphia

Yes. FatguyPI is headquartered in Philadelphia, PA 19136. Gary DeFinis has been conducting investigations in Philadelphia since 1990 and knows the city inside and out.

Get In Touch

Free Consultation —
Philadelphia

All inquiries are handled with strict confidentiality. Your information will never be shared. No obligation.

Phone
(215) 338-3303
Email
garydefinis@gmail.com
Hours
Mon–Fri · 8am–2pm · On Call After 2pm
Serving
Philadelphia, PA & Surrounding Areas
Also Serving
PhiladelphiaBucks CountyDelaware CountyMontgomery CountyChester CountyNew JerseyDelaware

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100% Confidential · No Obligation · Licensed & Bonded