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BEST RATED PHILADELPHIA, PA PRIVATE INVESTIGATION SERVICE

3 Best Private Investigation Service in Philadelphia, PA

Expert-recommended Top 3 Private Investigation Service in Philadelphia, Pennsylvania. All of our private investigators actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and general excellence. You deserve only the best!

Felder & Associates Investigations Inc. - Philadelphia, PA Private Investigation Service - Company Logo
4+ YEARS IN TBR
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FELDER & ASSOCIATES INVESTIGATIONS INC.

(5.0 Score)
1700 Market Street, Suite 1005,
Philadelphia, PA 19103 Directions

Since 2012

Specialty:

✓Criminal Defense Investigations ✓Federal Criminal Defense and Federal Habeas Corpus Investigations ✓Locate Investigations ✓Executive Protection and Site Security ✓Process Service ✓Attorney-Litigation Support

" Felder & Associates Investigations Inc. is a professional private investigation firm licensed by the Commonwealth of Pennsylvania and is also bonded in Philadelphia County. They have over 20 years of combined law enforcement and investigation experience. The firm provides complete, detailed, strategic client interviews, photography, surveillance, court presentation reports, and special projects. Their mission is to provide their clients with uncompromised confidential services while protecting their legal rights and gathering key information on their behalf. They utilize cutting-edge technology and equipment that offer excellent investigation outcomes. Their top priority is to serve their clients with the highest level of honest, ethical, and dependable service while maintaining the highest level of integrity. They also provide flexible end-to-end solutions that assist companies and individuals in meeting their objectives by giving the best possible service at an affordable fee.

2026 Highlights: Felder & Associates Investigations Inc. offers 15 min Initial Consultation through a phone call. "

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License #4158351

Contact:

(267) 507-5448

Mon-Fri: 8am - 6pm
Sat & Sun: Closed

TBR® Inspection Report:

M. Goldman Investigations, LLC - Philadelphia, PA Private Investigation Service - Company Logo
7+ YEARS IN TBR
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M. GOLDMAN INVESTIGATIONS, LLC

(4.9 Score)
107 West Ridley Avenue, Ridley Park,
Philadelphia, PA 19078 Directions

Since 1989

Specialty:

✓Video Surveillance ✓Background Checks/Locates ✓Computer/Cell Phone Forensics ✓Internet/Text Message Retrieval ✓Criminal Defense Investigations ✓Custody/Support Investigations ✓Bug Detection Sweeps ✓Hard-To-Get-Research ✓Hidden Cameras ✓Polygraph Exams ✓Asset Research ✓Telephone Number Research ✓Interviews and Statements ✓Infidelity Investigations

" M. Goldman Investigations, LLC is a professional and licensed investigative company that provides professional services to both the business and residential communities. The firm is located 17.0 miles from Philadelphia, PA. Their team of highly skilled investigators will provide you with impeccable service and communication. They are experts in matrimonial, divorce, forensic, and criminal defense investigations. They are a professional, service-oriented organization that emphasizes their client’s needs and satisfaction. Their investigators are experienced in interviewing and obtaining statements from witnesses, becoming familiar with incident scenes, gathering relevant research, and exterior video evidence. They specialize in Capital Charges, Drug-Related Charges, and other Felony and Misdemeanor cases. M. Goldman Investigations is available 24 hours a day, seven days a week, to assist you with your investigative requirements. They conduct infidelity investigations using the most effective technology available in the field of undercover investigations. M. Goldman Investigations also offers a 24-hour free consultation.

2026 Highlights: M. Goldman Investigations, LLC professional investigators successfully document all of your Subject’s activities with clear, quality, timed, and dated videotape. "

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License #3845088

Contact:

(800) 505-5423 (610) 889-9311

Open 24 Hours

TBR® Inspection Report:

Tri State Detective Agency - Philadelphia, PA Private Investigation Service - Company Logo
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TRI STATE DETECTIVE AGENCY

(4.9 Score)
325 Chestnut Street, Suite 809,
Philadelphia, PA 19106 Directions

Since 2007

Specialty:

✓Infidelity Investigations ✓Cohabitation Investigations ✓Child Custody Investigations ✓Missing Persons ✓Surveillance ✓Activity Checks ✓Alive and Well Verification ✓Locates and Skip Tracing ✓Site Inspections ✓Service of Process ✓Recorded Statements ✓Accident Scene Diagrams ✓Background Investigations ✓AOE/COE Investigations ✓Clinic Inspections ✓Courthouse Research ✓Statewide Bank Search With Background ✓National Bank Search With Background ✓Digital Forensics ✓Bug Sweeping (TSCM) ✓Corporate Espionage ✓Insurance Fraud ✓Due Diligence

“ 2026 Highlights: Tri State Detective Agency has 30+ years of experience. Their team of experienced private investigators specializes in a wide range of services, including surveillance, background checks, infidelity investigations, and corporate investigations. With decades of experience, licensed professionals, and law enforcement backgrounds, they deliver court-ready evidence clients rely on for serious legal and personal investigations. With a commitment to confidentiality and professionalism, the firm utilizes the latest technology and investigative techniques to deliver accurate and timely results. Whether you need personal or business-related assistance, Tri State Detective Agency is your trusted partner in uncovering the truth. The firm covers 3 states and has 100% Client Satisfaction. Tri State Detective Agency is licensed in PA, NJ, and DE. ”

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License #0451179476

Contact:

(267) 733-6166

Open 24 Hours

TBR® Inspection Report:

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FELDER & ASSOCIATES INVESTIGATIONS INC. REVIEWS

I had the privilege of using Felder & Associates for a very important situation. With the help of Mr Felder the matter was handled immediately and very professionally.. I would recommend using his services for all of your needs that require private investigations, process servers or other needs. I give him 5 stars.

Ron was so helpful in my case! He was diligent, and determined to get the job done. He even reassured me that he was gonna accomplish the task at hand! I wanna thank him from the bottom of my heart for the hard work he put forth.

Very helpful, kind and courteous. Extremely professional. I work in music and needed to find the daughter of a deceased Philly musician and Ronald got it done quick fast and in the right way. Highly recommended.

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M. GOLDMAN INVESTIGATIONS, LLC REVIEWS

Contacted the firm and received a call the same day there was no wait and they were able to make an impromptu appointment with no hesitate after explaining the matter. We met up for payment and results were delivered in 3 days with detailed information they even went a step further to investigate something that stood out to them on the rwport. Would highly recommend. Thank you M . GOLDMAN for your services.

Mark Goldman provided top notch service for our family in a time of need. He is very responsive, professional, and courteous. I would recommend anyone to contact Mark.

Mr Goldman was patient and understanding with our case with the utmost professionalism. Went above and beyond for us and we are very appreciative.

TRI STATE DETECTIVE AGENCY REVIEWS

Our family went through one of the most difficult experiences imaginable when a loved one went missing. Hiring this investigator was one of the best decisions we could have made. From the very beginning, he was professional, compassionate, and completely committed to helping us. Every time we found a new lead or received new information, he immediately started investigating it and didn’t hesitate to go directly to the location to follow up. His quick response and determination gave us confidence that every possible avenue was being explored. He stayed in constant communication with us, kept us updated throughout the entire process, and treated our family with genuine care and respect. It was clear that this wasn’t just another case to him—he truly cared about finding our loved one safely. Thanks to his persistence, dedication, and countless hours of hard work, our loved one was found safe and is now receiving the care they need. During one of the most stressful and emotional times of our lives, having someone we could trust made all the difference. If you’re looking for a private investigator who is responsive, relentless, compassionate, and truly committed to helping families, I cannot recommend him highly enough. We will always be grateful for everything he did for us.

There were some things going on in my life that required the services of Mr. Nixon. He was caring and compassion for my concerns. Mr.Nixon was efficient, punctual, and prompt in giving me the information that I needed. I highly recommend his services.

Got amazing results. Highly recommend their services.

TBR® Inspection Score Report

FELDER & ASSOCIATES INVESTIGATIONS INC. Total Inspection Points: 119/120
Business Hours: 9
Acknowledgments: 10
Contact Info: 10
License: 10
Emblem: 10
Exact Services: 10
Legitimate Ratings: 10
Location Proximity: 10
Review Analysis: 10
Reviews Accuracy of : 10
Reviews Study: 10
Website Standard: 10

TBR® Inspection Score Report

M. GOLDMAN INVESTIGATIONS, LLC Total Inspection Points: 118/120
Location Proximity: 9
Social Media: 9
Acknowledgments: 10
Business Hours: 10
Contact Info: 10
License: 10
Exact Services: 10
Experience: 10
Legitimate Ratings: 10
Reviews Accuracy of : 10
Reviews Study: 10
Website Standard: 10

TBR® Inspection Score Report

TRI STATE DETECTIVE AGENCY Total Inspection Points: 117/120
Complete Info: 8
Experience: 9
Acknowledgments: 10
Business Hours: 10
Contact Info: 10
License: 10
Exact Services: 10
Legitimate Ratings: 10
Location Proximity: 10
Reviews Accuracy of : 10
Reviews Study: 10
Website Standard: 10