Gradoni & Associates
13810 Champion Forest Dr # 210
77069, Houston
+1281-440-0800

Horario de apertura

  • Domingo: (closed)
  • Lunes: 8h-17h
  • Martes: 8h-17h
  • Miércoles: 8h-17h
  • Jueves: 8h-17h
  • Viernes: 8h-17h
  • Sábado: (closed)

Our agency is headed by our founder, Chief Investigator J.J. Gradoni, a well known and respected Houston private investigator who has remained licensed since 1989.

Since 1989 we’ve handled thousands of a investigations for our corporate, law, and private clients. Our newsletters chronicle some of our most interesting cases.

Gradoni & Associates offers the full range of investigative services. Click the button below to learn more about our services, and how we’re able to help you.

If you think they’re cheating we’ll get you the truth, with evidence. We’re also adept with divorce, child custody, pre-marital, and asset related investigations.

If you need someone followed, are looking to gather evidence for family court, or if you suspect your significant other of cheating, we’ll keep an eye out for you.

We help the wrongfully imprisoned reclaim their freedom, wrongfully accused to clear their names, and numerous Houston law firms fight for their clients.

Houston private investigators since 1989, Gradoni & Associates offers a wide range of investigative expertise. We’ve had successful experiences conducting major investigations for law firms, insurers, and corporations, and have also achieved success for individuals who came to us looking for a private investigator for a personal matter.

A number of the private investigators & detectives on our team have professional law enforcement backgrounds, and are considered experts in criminal defense preparation.

Our staff includes audio-visual experts and professional surveillance agents that have undercover law enforcement experience. Our investigative team also has a premise liability and security expert, a certified public accountant, and experienced Civil Rights investigators.

I take great pride in the reputation our firm has earned since its· inception 29 years ago as providers of a professional, accurate, and timely work product for our clients. We have a diversified staff of Investigators who can handle any assignment to further our clients’ needs. We are experts in criminal defense, corporate and family law surveillance, background and asset investigations, and interviewing witnesses. Our motto “The truth matters” is the driving force underlying our efforts to leave no stone unturned on every client matter we undertake.

On a normal basis we work with well known and respected Houston criminal law attorneys such as Jack B. Carroll, Katherine Scardino, Mark W. Bennett and others with regard to criminal investigations, death penalty cases, and murder investigations.

If you’re a private practice lawyer, associate attorney or partner of a law firm that needs a trusted source for investigation matters, contact Gradoni & Associates today. We have numerous references and strong relationships with multiple law firms and attorneys in the Houston area.

When you hire a private investigator from Gradoni & Associates, you can take solace in knowing that you’re working with an elite detective that knows the ropes, has the patience to get the job done, and the professional experience to do it right.

We’ve served as investigating detectives on well known and publicized cases like the Andrea Yates child drownings case, the Bellville Family Murders, and the Bugatti insurance fraud case that made its rounds in Houston and national media.

Our newsletter sheds light on the murky world of the private investigator. We invite you to have a cup of coffee and read about our successes in the field, conducting investigations.

Gradoni & Associates has conducted thousands of investigations, developed hundreds of sources and partnerships, and has remained a cutting edge Houston private investigator for nearly 30 years. If you need to discuss a personal or business matter with an experienced private investigator, call Gradoni & Associates at 281-440-0800 (Houston) or 979-997-5697 (Brazoria County).

Gradoni & Associates: Opiniones

4.8/5 (52 Opiniones)
Jennifer Publicada en Google 4 months ago

Experiencia fantástica: As a criminal defense team practicing in Texas for over three decades, we've worked with many investigative firms—but Gradoni and Associates truly stands out. They’ve been in the business for many years and have built a solid, well-earned reputation for delivering results. Their proven track record is one of the reasons we first reached out, and they’ve exceeded expectations every step of the way. Their communication is excellent—always responsive, professional, and clear. The reports they provide are detailed, thorough, and easy to work with, which is critical when building a solid defense. Turnaround time is consistently quick, and they never cut corners. What really sets them apart is their team. Gradoni and Associates offers a variety of experienced investigators, each with their own area of expertise. No matter the challenge, they’ve had the right person for the job. It’s been a pleasure working with them, and we wouldn’t hesitate to recommend Gradoni and Associates to any legal professional looking for dependable, high-quality investigative support. -David Kiatta, Segura & Kiatta Criminal Defense

Caleb Sick Publicada en Google 10 months ago

Experiencia fantástica: Grandoni & Associates are prompt, professional, and most importantly personable when it comes to how they operate. Keith was very respectful and patient, I would not hesitate to recommend Grandoni & Associates - they are a well oiled machine and a class act.

William Payne Publicada en Google 11 months ago

Experiencia fantástica: Keith K., Private Investigator at Gradoni & Associates, was very thorough, compassionate, and professional in helping us to resolve conditions surrounding the death of a loved one.

Roberto Paredes Publicada en Google 1 year ago

Experiencia fantástica: Gradoni & Associates has an incredible work ethic—they simply get the job done right. Mr. J.J, the owner, provided personalized and efficient service. This firm is responsive, answers calls, and handles everything professionally. Unlike other firms that drag their feet and delay responses, they are reliable and proactive.

Adrienne Jackson Publicada en Google 1 year ago

Experiencia fantástica: Our firm Bivona Law uses Gradoni & Associates to track down individuals related to motor vehicle accidents. I've worked with them on several occasions and each time they have provided exceptional service. There is no other company I would trust to get the job done. I'd use them over and over again!

Elmstreettexas Elmstreettexas Publicada en Google 1 year ago

Experiencia fantástica: Hired Gradoni and Associates to help with a legal matter. JJ offered insights, suggestions, cautions and even a much-appreciated compassionate ear. His team followed up without relenting, eventually giving us a great laugh when a young woman, “Kitty Cat” was able to serve, “Determined Dodger” while dressed up on Halloween night! This act alone provided us with a key, but reluctant witness, who helped to cinch our case. JJ’s team went above and beyond in conducting surveillance, background searches, finding what we believed he would find and then providing top-notch reports for court. Through the process, we were kept informed of all the details. Victory is sweet and satisfying, JJ is balm for battle wounds, a determined force and a man of honor, doing what he says he will do with all diligence. His is team is professional, thorough and committed. No regrets and very thankful! JJ came through for us. The huge lesson I’ve learned in all of this… when heading to court, take no chances with who is on your team!

G L Publicada en Google 1 year ago

Experiencia fantástica: I called the firm for a minor case. Keith worked on it very professionally, efficiently and friendly. He is very helpful. I am very grateful for his service and his kindness. I would highly recommend the firm.

David Smith Publicada en Google 1 year ago

Experiencia fantástica: Gradoni & Associates is an exceptional private investigation firm. Their team is professional, thorough, and highly effective. They have handled cases for my firm with utmost care and delivered outstanding results. I highly recommend their services to anyone in need of reliable and efficient private investigators. Thank you, Gradoni & Associates!

Agnes Adarkwa Publicada en Google 1 year ago

Experiencia fantástica: Worked with Keith on what I thought would be a minor straightforward case and he ended up discovering so much more than I could imagine. He discovered criminal activity occurring with my client and ultimately testified on my behalf with his findings. He is amazing. Very responsive, helpful and definitely went above and beyond. The price was good for the amount of work that he did and I will use them again in the future should the need arise.

Robert Fickman Publicada en Google 1 year ago

Experiencia fantástica: I am a criminal defense attorney. Gradoni and Associates have been my investigators for over 30 years. JJ Gradoni is a great private investigator and his associates, under his guidance, always do a great job. On just about every case I have won, Gradoni and Associates have played a critical role in achieving victory. JJ Gradoni is hard-working, very intelligent, ethical and leaves no stone unturned. I have gone with him to visit scenes and interview witnesses. JJ has the ability to go into any neighborhood and get almost anyone to open up and talk to him. I am very grateful for all the years Gradoni and Associates have helped me provide a better, more thorough defense for my clients. Thank you, JJ for all you've done for me and my clients.

Steve Moore Publicada en Google 1 year ago

Experiencia fantástica: I watched him work miracles in court with his evidence, Enough said.

E. Mac Publicada en Google 2 years ago

Experiencia fantástica: Excellent and full of knowledge! Took their time to work with me to find an individual and even provided a great resource to assist in my search. I am a returning client and highly recommend them!

Allan Cease Publicada en Google 2 years ago

Experiencia fantástica: I recently used this firm to interview two critical witnesses that the police did not talk to concerning a sexual assault. I submitted the affidavits along with other information to the ADA, in charge, who presented it to a grand jury. Yesterday, the grand jury no-billed the case. I started using this firm some years ago. They are very timely, thorough and effective. I highly recommend their services.

Karma Publicada en Google 2 years ago

Experiencia fantástica: Can u help us we turned down a lawsuit settlement because it wasn't what we wanted & ever since than they be stalking us

Mr Audit Publicada en Google 2 years ago

Experiencia negativa: Spoke to Mr Gradoni about a case I would of like him to do, but denied my case and was very very rude about it.

Mary V Huse Publicada en Google 2 years ago

Experiencia fantástica: Quality performance with great results.

Michael Singh Publicada en Google 2 years ago

Experiencia fantástica: Keith was amazing. Very quick and competent. I would highly recommend him. I thoroughly appreciate the help he gave.

Linda Post Publicada en Google 2 years ago

Experiencia fantástica: PI Keith helped me with the information I needed quickly and efficiently. I highly recommend Keith and Gradoni & Associates. Thank you Keith. L. Post

BackTFup Publicada en Google 2 years ago

Experiencia fantástica: They help people win!

Dria Holliday Publicada en Google 2 years ago

Experiencia fantástica: Best detectives ever! ThNks!

Roxanne C Publicada en Google 2 years ago

Experiencia fantástica: Excellent detectives. Great company!

o AYO o TuRn Up Publicada en Google 2 years ago

Experiencia fantástica: Thank you! Money well spent! Saved me millions!!!

Pat S Publicada en Google 3 years ago

Experiencia fantástica: Gradoni & Associates recently helped me with a personal matter and I couldn't be happier with the results. Both Mr. JJ Gradoni and Mr Keith Kucifer were professional, efficient, and went above and beyond to get the facts I needed. Their commitment to the case was impressive and they kept me in the loop throughout their investigation. I'm grateful for the outcome I received and I highly recommend Gradoni & Associates to anyone in need of private investigation services in Houston. Their expertise and attention to detail were exceptional. I couldn't have asked for a better experience. If you're in need of a reliable and trustworthy detective agency, call JJ Gradoni & Associates. They're professionals that'll get the job done.

Trace Livengood Publicada en Google 3 years ago

Experiencia fantástica: Gradoni & Associates provides a high quality service at a reasonable price. If you value professionalism and clear communication, I highly recommend this company.

Nesha Berry (TEXAS TEA) Publicada en Google 3 years ago

Experiencia fantástica: Great detectives and private eyes. They get proof they of the truth!

Brittney Jones Publicada en Google 3 years ago

Experiencia fantástica: They were a great help on my legal situation. I recommend them as private investigators.

Kevin n shay Foster Publicada en Google 3 years ago

Experiencia fantástica: JJ is the best. If you need information, their detectives and private investigators will get it for you.

Kimmy O Publicada en Google 3 years ago

Experiencia fantástica: Called in and he was so nice and professional. Was so helpful and gave me information! Highly recommend

Bria Riggs Publicada en Google 3 years ago

Experiencia fantástica: No complaints. The service was great and I got all the answers I was looking for. Thank you JJ.

Robert Campion Publicada en Google 3 years ago

Experiencia fantástica: 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 Publicada en Google 3 years ago

Experiencia fantástica: I can't put into words how helpful everyone was towards me. And that was just over the phone. Thanks so much

Eduard Anton Publicada en Google 4 years ago

Experiencia fantástica: 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

M&M Juliangarza Publicada en Google 4 years ago

Experiencia fantástica: 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!

Alice Publicada en Google 4 years ago

Experiencia fantástica: Highly professional, attentive to client needs, compassionate and understanding, top grade service providers in efficient and timely fashion consistent way.

Bunker Hill Publicada en Google 4 years ago

Experiencia fantástica: 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!

Ruth Kantor Publicada en Google 5 years ago

Experiencia fantástica: 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 Publicada en Google 5 years ago

Experiencia fantástica: 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.

KINGSLEY UGO Publicada en Google 6 years ago

Experiencia fantástica: Awesome People... 20 stars

Gradoni & Associates
Gradoni & Associates

Thanks for the excellent rating Kingsley!

Kathy Ordner Publicada en Google 6 years ago

Experiencia fantástica: 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!

Gradoni & Associates
Gradoni & Associates

Thanks for the glowing review of our services and hard work and tireless effort we expend for our clients. We're grateful for this review. Thank you Kathy!

Michelle Anderson Publicada en Google 6 years ago

Experiencia fantástica: 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.

Gradoni & Associates
Gradoni & Associates

It's not everyday that we get this type of recognition from our clients and that's largely due to the secretive nature of our work. We as a team are grateful for the 5 star rating and the detailed review of your experience working with us. Thank you for giving us the opportunity to serve you.

Greig Llewellyn, SMA Publicada en Google 6 years ago

Experiencia negativa: Whined about the job being difficult and never called me back.

Gradoni & Associates
Gradoni & Associates

Mr. Llewellyn, we’re never worked with you as a client, and we would never accept a client or fees from a person that know we can’t help. We regret that we could not provide service to you, but we don’t deserve the one-star review. In most cases, we can help folks, but if we don’t have enough information to go on, we won’t waste the client’s (your) time. If you have any questions, we encourage you to contact us to bring this matter to a speedy resolution and so that we may rescue any potential relationship that we might have.

Susan Spurr Publicada en Google 6 years ago

Experiencia fantástica: 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!

Gradoni & Associates
Gradoni & Associates

Thanks for the fantastic review of our service Ms. Spurr! We're thankful to have earned your professional respect.

David Montgomery Publicada en Google 6 years ago

Experiencia fantástica: They did excellent work on my case. I found out everything I needed to know to make the right choice in my situation. Good luck.

Gradoni & Associates
Gradoni & Associates

Sorry for the late affirmation of this excellent review Mr. Montgomery. If you ever need us again, we're here for you! Thank you!

Andrew Graves Publicada en Google 7 years ago

Experiencia fantástica: Gardoni and Associates is completely professional and will handle your case is a timely manner. They got what I needed for my case within 1 day out in the field. Thank you for your help.

Gradoni & Associates
Gradoni & Associates

Thanks for sharing the excellent review of your experience working with us with the world. Thank you Andrew. Happy New Year!

Lisa George Publicada en Google 7 years ago

Experiencia fantástica: 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

Gradoni & Associates
Gradoni & Associates

Thanks Lisa for the kind words about our company. We appreciate and value the positive feedback. You're welcome welcome welcome!

Cedric James Ong Publicada en Google 7 years ago

Experiencia fantástica: I want to thank JJ and his staff for helping my sister out with her case. I won't go into details but they were very professional and thorough with their work

Gradoni & Associates
Gradoni & Associates

No problem Cedric! We told you we could help! Thanks for the excellent review!

William Hodge Publicada en Google 8 years ago

Experiencia fantástica: Mr. Gradoni is the one of the best investigators in the country! He specializes in criminal, domestic, workers comp and injury cases. His surveillance team is the best in Texas. Very professional and ethical. The best results.

Gradoni & Associates
Gradoni & Associates

Thanks for the kind words and the strong vote of confidence Mr. Hodge. We mean it. Thank you.

Trevor Phipps Publicada en Google 8 years ago

Experiencia fantástica: 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.

Gradoni & Associates
Gradoni & Associates

Thanks for telling others about your 5-star experience working with us! Any company working to be the best private investigation agency in Houston can't afford to let their clients down. Thanks for giving us the chance to serve you and your business Mr. Phipps!

John Gonzales Publicada en Google 8 years ago

Experiencia fantástica: Thanks for all the hard work! It paid off! I recommend J.J. Gradoni and Keith Kucifer. They can be trusted and are men of integrity.

Gradoni & Associates
Gradoni & Associates

Thanks for reviewing our company and please forgive me for not replying to this excellent review sooner. Thank you Mr. Gonzales!

Jack Carroll (Attorney Jack B. Carroll) Publicada en Google 8 years ago

Experiencia fantástica: We wanted to thank J.J. and the other investigators at Gradoni & Associates for all the good work they've done for us over the years. - Jack

Gradoni & Associates
Gradoni & Associates

Working with Jack B. Carroll & Associates is a feather in our cap. We're grateful for your business and will continue to work diligently on your cases.

Voss Five Publicada en Google 8 years ago

Experiencia fantástica: JJ is a smart guy and will get to the truth of the matter.

Gradoni & Associates
Gradoni & Associates

Voss Five, thank for taking the time to share your kind words about our investigation services. If you ever need us again, reach out to us.

Michael Hampton Publicada en Google 9 years ago

Experiencia fantástica: 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!

Gradoni & Associates
Gradoni & Associates

It was tough, but worth the effort. You're a good man.

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