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Quantum Investigations When you need the best Private Investigator Phoenix AZ has to offer, then call Quantum Investigations. We are uniquely trained, former military and former Phoenix PD, to help you to Expose the Truth! My name is Jeff, a personal private investigator Phoenix AZ agent for hire. We help law firms, businesses, and individuals (perhaps like yourself) who find themselves in a desperate situation looking for answers.

With over 23 years of (actual boots to the pavement) experience, my team of former military and former Phoenix PD have used our unique and specialized skills to help to uncover the truth.
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Looking for a private investigation company that can deliver real results? Quantum Investigations has a successful track record spanning over 23 years of getting answers and results for our clients. For a Free, Zero Commitment, Consultation, give us a call-Today! If you are not sure if it is a good idea to hire a private investigation Company to take care of your personal matters let us Paint a Little picture for you.
Over the past two decades, Jeff Penrod as become a leading Private Investigator in Phoneix AZ. The page will give you a background of how this all started. Jeff first got a taste of the private investigation industry during his years in the military. After serving in the military and by having a service background, he was able to land a job in law enforcement by working for the Phoenix police department.
Quantum Investigations is one of the leading Arizona PI's in the entire state. We have one of the most successful track records (23 years in the industry) of successful cases. These key technical members of our team provide us key information to narrow our search, and then we're out there on the streets like Dog the Bounty Hunter, pounding on doors, ruffling feathers, and smoking out the ones we are after or to pressure those who may have information to share that with us.We're one of the best at what we do.
Our private investigator agency provides superior, stealth-like, surveillance services throughout Arizona. Do you need someone tracked, followed, and monitored? Or.are you in danger and would like someone to monitor your home or workplace to ensure your safety? Perhaps you are an insurance company and you need us to follow someone who you believe has wrongfully filed a workman's comp related injury, and you would like us to follow them to validate their claim.When most people think about surveillance, they think of a drama movie with a police officer doing a stakeout on a bad guy's lair.
Reviews (16)
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Gage
Sep 08, 2021
Critical: Quality, Value Obviously did the bare minimum for $1000, did not even physically see person but then tried to act like they put in "an extra day" for me. I would avoid this business because they simply do not put in quality work.
Carla Reagan
Jun 17, 2021
I received an immediate response and quote regarding my inquiry. He's highly skilled and an experienced private investigator. He did amazing work, he didn't just sit behind a desk, he is boots on the ground and verified the information. I believe in life you get what you willing to pay for, Jeff's work was money well spent, professional, great quality work, in a timely manner.
J. J. Jonathan
Mar 28, 2021
Called back was excellent, communication was very much about helping me.
Cristina Doan
Apr 25, 2020
Jeff is professional and an extremely hard worker. I recommend him to anyone to get the job done.
Maria Shivone
Jan 17, 2020
I needed to hire Quantum Investigations to locate someone who owed on a court order. The service was quick and professional. I was able to locate the person within a few days and start to collect what I was owed. I would highly recommend them.
Tyler Carson Baldwin
Jan 14, 2020
Jeff is very professional, he makes every case a priority, however every case is different, some take more time then others, I have worked with Jeff for many many years, he is one of the best in the state at tracking down people and assets.
Paul West
Jan 04, 2020
Thank you for coming through for us. We really appreciate it! If you need a private investigator in Phoenix then you must call Jeff.
R. R.
Dec 19, 2019
I've done business with Jeff for years and have nothing but good to say about his work. With a Police career background and experience with people he knows how to get the info he needs to get the Truth. Well done.
Sandra Margot-Escott
Dec 12, 2019
An absolute pleasure to do business with! Reliable, knowledgeable private investigator. Thank you for your professionalism.
Dale Keliikoa
Dec 10, 2019
What a breath of fresh air to know that there are others out there who genuinely have my best interest at heart. Thank you Jeff and team for your excellent communication and being persistent with following through with all of my directions. Highly recommend!
Kevin N.
Nov 04, 2019
If you needing investigative work done right Quantum Investigations is the place to go. They have very reasonable rates and their investigative staff are seasoned investigators with years of experience in all types of investigations from missing persons, due diligence, counter surveillance to difficult infidelity cases. I was very satisfied with their work and they were very easy to talk to and get in touch with when I needed them.
Ronald Escott
Oct 11, 2019
Incredible investigators awesome results. Very professional and knowledgeable. Thank you so much
Michael S.
Jul 09, 2019
I hired Jeff and his partner to find my 12 year old daughter who ran away they boasted about the technology they had and how it was cutting edge. I felt very confident about their abilities to find my daughter but was quickly disappointed with the results. An average investigation costs about $50-$100 an hour Jeff charged me almost $1700 without producing any results.

My daughter returned home on her own thankfully but unfortunately I had already paid dearly. I'm a single parent and a disabled veteran so I asked if there could be some adjustment because they barely had my case for a day before my daughter returned and had zero leads, I was brushed off as it was no big deal. Not only do I feel very taken advantage of but have spent a good portion of my emergency funds. If you're missing a child or anyone don't buy into this, their tech isn't worth the cost.
Tyler Baldwin
Jun 13, 2019
Thank you Jeff, I called quantum Investigations to locate a few people to recover funds I was stiffed on, he told me there was no guarantee on the out come, I must say I was shocked on how much the team at Quantum did for me, I actually recovered 80% of what I was owed. I highly recommend Quantum Investigations. Thanks again.
Doctor Jamison Nd
May 30, 2019
I have serious concerns about professialism and contractual obligations made with firm. To my knowledge they did NOT adhere to business ethical standards within industry norms. I will seek clarification during discovery phase of civil law suites when filed. I am approaching better business bureau and licencing boards to further rectify the situation. Hopefully a positive solution can be meet where both parties are satisfied and the apparent situation may be resolved.
Janis Griffin
Mar 11, 2019
I hired QI to find a missing family member. The Agreement was that he would find an address and verify the status of the family member. QI kept the $2750 and provided me with an unverifiable address that is as useless as a $10 online people search.