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Business Details
We have served Houston as licensed private investigators since 1989. Our founder, Chief Investigator J.J. Gradoni, holds Texas License #A05741 and leads a team with over 90 years of combined investigative experience. We employ former law enforcement professionals who bring specialized expertise to every case. Our staff includes audio-visual experts, certified public accountants, and premise liability specialists. We deliver court-ready reports that withstand rigorous legal scrutiny. Our motto, "The truth matters," drives our commitment to leaving no stone unturned.

We provide cost-effective solutions for corporations, law firms, and private individuals alike. References are available upon request to verify our professional standards. We maintain ethical and honorable practices in all surveillance and background investigations. Our diversified team handles criminal defense, corporate, and family law matters with equal precision. We exist to make the world a better place through truthful, accurate investigative work.
Highlights and features
  • We have maintained continuous Texas licensure since 1989.
  • Our team possesses over 90 years combined investigative experience.
  • We employ former law enforcement professionals for specialized expertise.
  • Our reports are court-ready and withstand rigorous legal scrutiny.
  • We provide cost-effective solutions for corporations, law firms, and individuals.
Services
Surveillance
Our surveillance specialists utilize advanced audio-visual equipment and undercover law enforcement experience to conduct discreet monitoring operations. We serve attorneys, corporations, and private clients requiring evidence for family court, infidelity cases, or insurance fraud detection. Every investigation produces court-ready documentation backed by licensed investigator testimony.
Background Investigations
Our background investigations uncover hidden truths about potential employees, business partners, or personal relationships through comprehensive database research and field inquiries. We serve corporations conducting preemployment screening, law firms needing due diligence, and individuals verifying personal histories. Clients receive detailed reports revealing criminal records, financial standing, and character assessments.
Criminal Defense Investigations
Our criminal defense investigations support attorneys and wrongfully accused individuals by locating witnesses, analyzing evidence, and reconstructing crime scenes. We leverage former law enforcement expertise and certified public accountant resources to challenge prosecution narratives effectively. Our work has helped reclaim freedom for the wrongfully imprisoned and clear names in capital murder cases.
Corporate Investigations
Our corporate investigations protect businesses from internal theft, competitor espionage, and fraudulent insurance claims through strategic intelligence gathering. We serve Houston corporations requiring competitive intelligence, asset verification, and premise liability assessments with professional discretion. Each engagement delivers actionable findings supported by court-admissible evidence and expert testimony availability.
Family Law Investigations
Our family law investigations provide discreet surveillance and asset tracing for divorce, child custody, and premarital matters requiring factual evidence. We serve individuals and attorneys needing documentation of infidelity, hidden assets, or parental fitness concerns in Harris County courts. All findings are compiled into court-ready reports by licensed investigators with family court experience.
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Reviews (21)
Robert Campion
Jun 19, 2022 Report
I used Gradoni on an employment fraud matter from 700 miles away. They were incredibly thorough and most importantly were able to deliver the truth I was looking for. Their final report helped us settle the matter without question. Mr. Gradoni was very involved and was very easy to work with. I highly recommend this business.
V. H.
May 06, 2022 Report
I can't put into words how helpful everyone was towards me. And that was just over the phone. Thanks so much
Eduard Anton
Nov 23, 2021 Report
Called with some questions and gentleman over the phone helped me out with the steps I need to take in 5 minutes. He did not want my hard earned money for something so simple he said. Wish there were more genuine folks like this around. Very honest and true American! Thank you sir
Eduard Anton
Nov 11, 2021 Report
Called with some questions and gentleman over the phone helped me out with the steps I need to take in 5 minutes. He did not want my hard earned money for something so simple he said. Wish there were more genuine folks like this around. Very honest and true American!
M. & M. Juliangarza
Aug 19, 2021 Report
JJ Gradoni & Associates are the best of the best. JJ will personally review your situation and find the best way to proceed forward to resolve your issue(s). He's very attentive, professional, knowledgeable, and communicative. We appreciated his calming demeanor, caring attitude, and commanding presence. No job is too big or small for JJ & Associates. The office is pleasantly productive and welcoming. JJ's Associates are all professionally competent and willing to do what it takes to help.

Throughout our experience JJ made us feel valued, trusted, and welcomed. Houston's best Private Investigators are at JJ Gradoni & Associates. Not to mention, they are affordable too. They will work with you and your budget. God bless you guys!
Bunker Hill
Aug 16, 2021 Report
I contacted Gradoni & Associates to check out a sketchy moving company (who was already in my house). Keith was extremely helpful and prompt. He ran a quick background check, gave me tips and advice on what to do next. I can't thank these folks enough!
Bunker Hill
Aug 01, 2021 Report
I contacted Gradoni & Associates to check out a sketchy moving company (who was already in my house). Keith was extremely helpful and prompt. He ran a quick background check, gave me tips and advice on what to do next. I can't thank these folks enough!
Nina Garrett
Jul 29, 2021 Report
Highly professional, attentive to client needs, compassionate and understanding, top grade service providers in efficient and timely fashion consistent way.
Ruth Kantor
Jun 04, 2021 Report
We contacted Gradoni & Associates to help locate a missing person. Keith Kucifer, Robert Dodd, J.J. Gradoni and their entire staff were terrific! This is a fine group of professionals.they are prompt, thorough, responsive and know their business. What a pleasure to deal with good people!
Michael Gillam
Nov 24, 2020 Report
I hired Gradoni and Associates to help me with a background check on a family member who I've been suspecting of not being the person they claimed to be. They worked my case with care and haste. The owner J.J. Gradoni is a nice guy. He actually saved me money and never tried to upsell me on anything. They never did anything without my approval and I really appreciate that. I HIGHLY recommend Gradoni and Associates. I had nothing but a positive experience with them and will return if I need anything else.
Kathy Ordner
Jun 16, 2020 Report
I hired Gradoni & Associates to locate a missing at risk close relative. Keith Kucifer worked on my case diligently every day with very little to go on other than a last known location from two months prior. He updated me each day on what progress he had made and his plans for the following days. Within two week's time, he was able to tie down a probable location area and a phone number. He had found him!

I was thrilled, as I had given up hope that the police department would ever be able to locate this missing person. I recommend Gradoni & Associates for their professionalism and dedication to each case. They get the job done!
Michelle Anderson
Mar 03, 2020 Report
JJ and his team are fantastic. My ex is really difficult and avoids service. Twice I've had yo use Gardoni and Associates and both times they were successful in less than 24 hours when process servers and constables couldn't get the job done. My ex likes to hide behind gates, secretaries, and private parking garages, but he's no match for JJ and team! I never thought I'd be in the position of having to hire a PI; JJ made the time to explain processes to me and his pricing is very fair.

He made me feel comfortable and I trusted he'd get the job done.and he did. I will not hesitate to call on him again if goodness forbid I need to and I recommend him whole heartedly. Honestly there aren't enough stars to rate him as highly as I want to.
Susan Spurr
Dec 25, 2019 Report
So glad we found J.J.! He was able accommodate our quick notice(more than once!) for a child custody case. His reports were concise and well-written; easy for a jury to understand. We highly recommend him.; J.J. takes care of business-and fast. One great P.I: thank you so much!
Susan Spurr
Aug 03, 2019 Report
JJ GETS IT! We got everything we asked for. quickly. The report was well-written (with photos) and easy to understand. We'll definitely use JJ again! (P.S.- reasonably priced too!)
Susan S.
Aug 03, 2019 Report
JJ's got it all! He was able to surveil (at very short notice!) someone for a child custody case. The reports were well-written; easy for a jury to understand, and even had photos. We would highly recommend JJ to anyone searching for a discreet, reasonably-priced P.I. Thank you JJ! Susan and Tim
Lisa George
Sep 16, 2018 Report
Google had a lot to offer in the Houston area, HOWEVER, when needing answers and assistance I followed my gut intuition and it was SPOT ON. Gradoni & Associates were able to find and confirm details others had not. Work well done. I am deeply grateful to JJ & his team for getting the job done. Reliable, careful and concise. Thank you Thank you Thank you
Trevor Phipps
Jun 17, 2018 Report
I have had the pleasure of working with JJ and his staff at Gradoni & Associates on a number of occasions. Their expertise in the private investigations field is quite amazing. The background searches they conduct are thorough and have helped my business and I make a number of important decisions. I would highly recommend Gradoni & Associates to anyone for background checking or private eye services.
Michael Hampton
Jun 20, 2016 Report
They came through for us on our case. I though I was being railroaded on my case, the police didn't believe us, and I thought I was finished. When my lawyer Jack B. Carroll hired a private detective to investigate my claims, I thought he was just trying to raise my legal bill, but when the investigator came to court and testified on my behalf, with evidence that they got from God knows where, I knew the light was gonna shine on me. Even though I don't know these guys, my freedom is a testament to their expertise as private eyes. Thanks guys!
Robert Smeckler
They handle their business with silence, and provide comprehensive data, video, images, and detailed investigation reports. I don't care to share much about our relationship, but I can certainly recommend Gradoni & Associates if you're looking for one of the best investigators in practice and ethics.
Jana Black
When I thought he was cheating on me I figured I was just having unfounded suspicions. I'm glad I didn't marry that bastard. Thanks JJ for showing me the truth. A sharp gentleman and a great private eye. The investigation report was very detailed and I could make out everything and every face that I saw in the surveillance photos. Thanks for everything.
Michael Hampton
They came through for us on our case. I though I was being railroaded on my case, the police didn't believe us, and I thought I was finished. When my lawyer Jack B. Carroll hired a private detective to investigate my claims, I thought he was just trying to raise my legal bill, but when the investigator came to court and testified on my behalf, with evidence that they got from God knows where, I knew the light was gonna shine on me. Even though I don't know these guys, my freedom is a testament to their expertise as private eyes. Thanks guys!