Business Details
19 Years
experience
Emergency
services
Philadelphia's Trusted Private Investigators
Tri State Detective Agency has built a reputation as a trusted private investigation firm serving Philadelphia, New Jersey, and Delaware. Our team combines decades of investigative experience with cutting-edge technology to deliver discreet, results-driven solutions tailored to each client's unique needs. Founded on the principle that our clients' goals become our mission, we employ highly trained professionals with backgrounds in law enforcement, military intelligence, and corporate security.Our commitment to excellence is reflected in our rigorous training programs, 24/7 case management portal, and a diverse team of bilingual investigators equipped to handle complex domestic and corporate matters. With collective expertise spanning over 30 years, we maintain strict confidentiality while utilizing advanced forensic tools and nationwide database access to resolve cases efficiently and ethically.
Services
Infidelity Investigations
Digital Forensics
Missing Persons
Background Checks
Corporate Surveillance
Details
- Year established: 2007
Highlights and features
- Our investigators average 30+ years of combined experience in law enforcement and military intelligence
- Government-approved digital forensics specialists for cyber crime and electronic evidence recovery
- Bilingual investigators available to accommodate diverse client communication needs
- Secure 24/7 online portal for real-time case updates and evidence review
- No subcontractors - all investigations conducted by our directly supervised professional team
Associations and certifications
- Licensed
- Bonded
- Insured
What people say
5/5
Professional
Discreet
Experienced team
Effective results
Services
Infidelity Investigations
Our specialized team conducts discreet marital infidelity investigations using advanced surveillance techniques and GPS tracking. With experienced investigators trained in family law matters, we provide documented evidence admissible in court while maintaining strict confidentiality. Our ethnic and gender-diverse team ensures appropriate investigator selection for each unique case.
Digital Forensics
Government-approved specialists recover digital evidence from electronic devices, including cell phones, computers, and surveillance equipment. Our accredited forensic analysts handle cyber stalking cases, data retrieval, and eavesdropping device detection using certified methodologies that maintain evidence chain-of-custody for legal proceedings.
Missing Persons
Specialized investigators utilize nationwide databases and law enforcement networks to locate missing individuals. Our team employs tactical surveillance and skip tracing techniques while coordinating with authorities to ensure safe recoveries. We provide compassionate support to families throughout the investigation process.
Background Investigations
Comprehensive background checks for employment verification, tenant screening, and corporate due diligence. Our investigators access restricted databases and conduct in-person interviews to validate identities, criminal records, and professional histories with complete discretion.
Corporate Surveillance
Tailored surveillance solutions for businesses including workers' compensation fraud investigations, intellectual property protection, and employee misconduct monitoring. Our experienced team provides documented evidence using covert surveillance and GPS tracking technologies while adhering to legal compliance standards.
People
Thomas Nixon Sr.
Founder
Former fugitive apprehension specialist with 20 years experience at major detective agencies. Holds detective license and criminal justice degree. Recognized for solving high-profile cases and mentoring future investigators.
John Miller
Investigator
Former military intelligence officer with decade of investigative experience. Expert in risk assessment and analytical techniques. Committed to client satisfaction through thorough case resolution.
David Rodriguez
Criminal Investigator
12-year law enforcement veteran specializing in criminal investigations and tactical operations. Skilled in conflict resolution and strategic surveillance operations with proven case closure record.
Mark Thompson
Evidence Specialist
Former detective with expertise in evidence collection and witness interviews. Known for attention to detail and ethical approach to uncovering factual case information.
Jessica Hayes
Cyber Investigator
Military veteran with specialized training in cyber investigations. Proficient in digital forensics and information gathering techniques for modern investigative challenges.
Questions
What areas do you serve?
We provide investigative services throughout Pennsylvania, New Jersey, and Delaware with headquarters in Philadelphia.
Are your investigators licensed?
Yes, all our investigators are licensed professionals with backgrounds in law enforcement, military intelligence, and corporate security.
Do you handle corporate investigations?
Yes, we serve businesses, insurance companies, and law firms with surveillance, fraud investigations, and due diligence services.
Can you assist with digital evidence recovery?
Our government-approved digital forensics specialists recover data from electronic devices for cyber crime and surveillance cases.
Is your consultation confidential?
Yes, all initial consultations and investigative details are strictly confidential between client and investigator.
How quickly can you start an investigation?
We begin immediately after case evaluation. Emergency services available 24/7 for urgent matters.
