P.O. Box 417, Sewell, NJ 08080, US

(856) 832-5062

Hire a Private Investigator-Private Detective in New Jersey & Pennsylvania

Hire a Private Investigator-Private Detective in New Jersey & Pennsylvania

Hire a Private Investigator-Private Detective in New Jersey & PennsylvaniaHire a Private Investigator-Private Detective in New Jersey & PennsylvaniaHire a Private Investigator-Private Detective in New Jersey & Pennsylvania


1.  "I have used Bob on numerous occasions for a variety of assignments, including social media searches and locating witnesses and parties, all with excellent results.  He has proven himself to be both thorough and prompt and my go-to for all private investigative needs."

Justin A. Britton, Esq. - Cooper Levenson Law Firm

2.  “I used Zimmerman Investigative Services for a difficult investigation involving two hard to find individuals.  Bob relentlessly pursued the statements I needed. The statements changed the case in our favor.  Bob’s efforts were extremely professional and also completed in a very timely manner.  I will continue to use ZIS on my difficult cases.  I highly recommend Bob to attorneys and law firms who need expedited and thorough results.”

Matthew P. Lyons, Esq. - Gebhardt & Kiefer Law Firm

3.  “We have used Bob’s services in numerous matters to include digital investigations, surveillance, and service of process.  He is always very responsive and prompt with his work product.  We will continue to use Bob’s services in the future and recommend that others in South Jersey do the same.”

“My law firm has used Bob’s services on multiple occasions and he always provides outstanding results in a professional and timely manner.  We highly recommend him!”

(FIVE STAR GOOGLE REVIEW for Zimmerman Investigative Services, LLC)

M. Brian Hall, Esq. - Law Offices of Ward, Shindle & Hall

4.  “Has been great working with Bob and plan to get back in contact if I need anything.  Helpful, organized and follows through with everything.  Extremely professional and would  highly recommend to anyone needing his help!!”

Jessica Sciangola, Senior Tax Accountant  

5.  “I have been working with Zimmerman Investigative Services to do comprehensive background screenings on my new employees.  The screenings always come back quickly, which is very important in my staffing business.  I would highly recommend using Bob’s services.  They are very professional, reliable, and efficient!!”

Jackie Polillo, Owner - Professional Medical Staffing

6.  “I have used Zimmerman Investigative Services in our district primarily for residency issues.  The services provided were very helpful to our district and were done in a professional manner.  Bob is very professional and detail oriented in his work.  All investigations and reports were completed in a timely manner and were very thorough to provide the necessary information to our specific cases.  We will continue using Zimmerman Investigative Services based on the experiences we have had to date.  If you are in need of an investigator, I would recommend using Bob due to his extensive knowledge and services he can provide.”

Peter Koza, Ed. D., Superintendent - Upper Deerfield Township Schools

7.  “I contacted Zimmerman Investigative Services for a suspected infidelity case.  I was seeking peace of mind and clarity in my relationship.  Having had no experience in this matter, the entire idea made me very nervous.  But from the very beginning of our phone conversation, Bob made me feel at ease and was sensitive to my situation.

Throughout the entire process he was very thorough, efficient and maintained great communication.  I was aware of every detail while the investigation was taking place.  In the end, I found him to be very honest, straight forward and extremely professional.  I would highly recommend his services to anyone.”

Confidential Client - Cumberland County, New Jersey 

8.  “A simple ‘thank you’ is not nearly enough to express Rita’s and my sincere appreciation for your work in bringing Kevin back safely.  Your knowledge, expertise and dedication to this matter, under difficult and potentially dangerous conditions is not only a credit to you, but also your profession. Your work was OUTSTANDING!!!!!  The police detectives in OC with whom you coordinated this investigation were most complimentary to you.

Bob, you are indeed a true professional and a very dear friend.  God Bless!"

John and Rita Warren, Ocean City, New Jersey

9.  "It is my pleasure to recommend Zimmerman Investigative Services for all your student residency investigations.  The Greenwich Township School District has used Zimmerman Investigative Services for several student residency investigations over the last three years.  Mr. Zimmerman's investigations are extremely thorough, detailed oriented and are completed in a timely fashion.  I would strongly recommend his services to other school districts or anyone else in need of hiring a licensed private investigator.

The amount of knowledge that Mr. Zimmerman has from his previous law enforcement position has helped our district out on numerous occasions.  Mr. Zimmerman goes over and above what he should do to assist you with your problems.  

Again, I recommend Zimmerman Investigative Services without reservation."

Scott A. Campbell, Business Administrator / Board Secretary - Greenwich Township School District

10.  "Finding Mr. Zimmerman and his team has helped me win cases.  There is simply no other way to describe his services other than exceptional.  My clients compliment his professionalism, speed and fair pricing.  My firm will not use a different investigation team on any case."

“Warren Law Group only uses 1 investigator—Robert is the best there is - my clients rave about his efforts!”

(FIVE STAR GOOGLE REVIEW for Zimmerman Investigative Services, LLC)

Bruce K. Warren, Esq. - Warren Law Group, PC 

11.  "Professional, thorough, discrete and timely...  I can't say enough about the level of service Zimmerman Investigative Services provides.  I would recommend highly, and without reservation.  Prepare to have your expectations exceeded." 

Dr. Nancy Cresse, DNP, ANP. 

Rutgers University

12.  "I’ve used Zimmerman Investigative Services and was very impressed with Bob as he quickly met with me and effectively evaluated my situation.  He provided me with a couple of plan options, updated me throughout the investigation process, and upon completion provided me with a professional and comprehensive report.  All his work was within the reasonable cost estimation that he provided at the onset.  Bob is honest and a true professional, whom I highly recommend!"

Ben Guzzardi - Title Insurance Account Manager

13.  "I’m very thankful for the services I received from Robert Zimmerman.  I think most people who hire a PI find themselves in a less than desirable situation.  Mr. Zimmerman was not only extremely efficient, a quick thinker, and extremely resourceful he was also extremely compassionate towards my situation and showed genuine care.  I’d recommend him to anyone who needs this type of service.  You won’t be let down." 

Anonymous Female Client - Child Custody Case

14.  "Bob went well above what I ever expected from him.  His rates are fair but his services are far above what you’d expect from what he charges.  He’s a man on a mission and won’t stop until he figures everything out.  He’s very quick to figure things out and think on his toes.  He’s also very communicative.  You wont find someone better.  Or more affordable.  He’s your guy." 

Eddie Rider - Former Law Enforcement

15.   "I can’t say enough good things about Zimmerman Investigative Services.  They are reliable, honest and easy to work with.  As an attorney, it’s important for me to partner with investigators who are ethical, hard working and communicative - Bob is all three.  In fact, he goes above and beyond what is required to deliver a level of service only seen in the most dedicated and sophisticated individuals."

Daniel L. Blanchard, Esq. (Corporate Litigation) - Lauletta Birnbaum, Attorneys At Law  

16.   "Using Zimmerman Investigative Services was a smart choice.  The money spent ahead of time, saved me lots of headaches later.  Armed with the facts, the best decisions can be made.  I'm a happy customer.  Thanks, Bob!"

Gina Marie Santore - Woolwich Township, New Jersey 

17.   "I engaged Bob Zimmerman and Zimmerman Investigative Services, LLC to assist me and my client in a very complex criminal case that required investigative acumen, people skills, and the utmost discretion.  Bob hit all the marks, and added much to the defense team.  I look forward to working with him again.  I’d recommend his business services for all your investigative needs."

Rocco C. Cipparone, Jr., Esq. - Law Offices of Rocco C. Cipparone, Jr. (Criminal Defense Attorney - Former Federal Prosecutor @ United States Attorney’s Office)

18.   Zimmerman PI has done great work on behalf of my clients.  They are thorough and professional.  I highly recommend them for any surveillance and background check work!” 

Amy E. Rudley, Esq. - Cooper Levenson, P.A., Attorneys at Law

19.   All I can say about Bob Zimmerman is he is a straight up, stand up guy, who will do everything and anything he can to help you for what is right.  I am a landlord and my house was ruined by my tenant’s within six months.  The damages totaled over $20,000.00.  My tenant’s fled and only had a P.O. Box for an address.  They tried so hard to elude me, because of what they had done to my property.  I had no choice but to call a private investigator for help.  I reached out to Zimmerman Investigative Services and within 24 hours got results.  With Bob Zimmerman’s help, I was able to get a full judgment against my previous tenant’s.  I thank you Zimmerman Investigative Services for all of your help!”

Michael Friel, Landlord - West Deptford, New Jersey

20.  “I wanted to take a moment to thank you for services most recently rendered to me on behalf of my clients.  The practice of law has many demands so I very much appreciate that when I ask Zimmerman Investigative Services to investigate a matter or make service of process or any number of other things, I can rest easy that the task will be done promptly and professionally.”

John A. Alice, Esq. - Law Offices of John A. Alice

21.  "Thanks Robert, for all of your prompt and thorough service in locating our missing family heir.  The very professional report which you prepared will be very helpful in the event this matter ends up in court at some point in the future.  We will not hesitate to recommend your services to others in the legal field.  Best wishes." 

“Our Law Office has worked with Robert Zimmerman and Zimmerman Investigative Services over the last month or so regarding an Estate matter, and specifically a missing heir.  Robert has done an outstanding job for us and has prepared a very detailed Report of his work and the results achieved. There is no question that Mr. Zimmerman will serve as a knowledgeable and experienced witness if testimony beyond the content of his Report is required.  Robert’s law enforcement background and experience is evident in his work product.  We highly recommend Zimmerman Investigative Services where great attention to detail and thorough reporting is required.” 

Chris Straub, Esq. - Pyfer, Reese, Straub, Gray & Farhat, PC (Lancaster, PA)

22.  “I hired Zimmerman Investigative Services for an investigation involving a search for my child’s mother.  Through skip traces Bob worked diligently and professionally to provide me with the results I needed.  These skip traces helped land me a judgment in the court of law that was favorable to the case.  Bob’s hard work is commendable and absolutely professional along with getting the job done ahead of the anticipated time.  I definitely recommend Bob‘s services for those seeking private investigative services.  He is without question the best of the best.” 

Wilburn A. Adams, Jr. - Blackwood, New Jersey

23.  “Bob was great to work with!  He was quick to respond to emails, very professional and informative.  He got the job done that others could not.  He also gave us a very detailed report when the job was complete.  Would definitely recommend and use again.  Thank you Bob!” 

Debbie Folk, Estate Paralegal - Pyfer, Reese, Straub, Gray & Farhat, PC (Lancaster, PA)

24.  “We had a tragedy in our family and because of this we had lost contact with our precious daughter.  After trying unsuccessfully to locate her on our own we realized we needed help.  We contacted Bob Zimmerman with the hope he could help us locate her.  Bob was helpful and kind and walked us through the process.  His prices were very reasonable.  Within 2 days he had located her, sent us the information.  We could not have asked for a better outcome.”

James Montgomery - Des Moines, IA 

25.  “In my 25 years of practicing matrimonial law, Mr. Zimmerman is by far the best investigator I’ve utilized.  He understands the legal issues involved, investigates thoroughly, and communicates every step of the way.  He is conscious of my client’s budget and seeks guidance from me before incurring expenses.  His reports are accurate, complete and are able to withstand cross-examination.  He is a pleasure to work with and I highly recommend him.”

Anonymous Lawyer - Family Law Attorney, Southern New Jersey

(Personal Reference Available Upon Request)

26.  “Zimmerman Investigative Services never ceases to impress.  Thanks so much again, Bob.  Pictures from the cell phone are going to be a big help.”

John H. Shindle, Esq. - Law Offices of Ward, Shindle & Hall 

(FIVE STAR GOOGLE REVIEW for Zimmerman Investigative Services, LLC)

27.  “Our firm could not be happier with the professional way that Zimmerman Investigative Services has handled our legal matters which required top notch investigations.  The five star rating that I gave is most certainly well earned!

Joseph J. Hoffman, Jr., Esq. - Law Office of Hoffman DiMuzio

(FIVE STAR GOOGLE REVIEW for Zimmerman Investigative Services, LLC)

28.  “I’d like to let everyone know that my experience with ZIMMERMAN Investigation was nothing but the most professional and outstanding job that anyone can do for their client.  I strongly recommend their services as they are very professional, thorough, and it was nothing but a complete positive experience.”

BVW Services, LLC - Cherry Hill, New Jersey

(FIVE STAR GOOGLE REVIEW for Zimmerman Investigative Services, LLC)