The Truth Makes A Difference.
For over 35 years, Gradoni & Associates has provided licensed investigative services to Houston's legal and business community. Our investigators, former police detectives and federal agents, support corporate counsel with due diligence and workplace investigations, assist attorneys with civil and criminal casework, and conduct the surveillance and background work that both individuals and institutions rely on. Every case is handled with the discretion and documentation standard our clients expect, whether the audience is a jury, a judge, or a board of directors.
We approach every engagement the same way, regardless of size: with a clear investigative plan, methodical fieldwork, and a final report built to withstand scrutiny. That consistency is why so many of our client relationships outlast a single case.(opens in new tab)
Why We Exist
To make a meaningful difference through investigative work.
How We Behave
With integrity, professionalism, and complete objectivity.
What We Do
Provide truthful, accurate, and timely information.
How We Succeed
By employing the most proficient investigators in the business.
Firm Founded
Cases Investigated
Nationwide
Combined Experience
The Full Picture
Private Investigation Services, A to Z
Security Evaluation
Video & Photographic Evaluations
Competitor Intelligence Development
Electronic Counter Measures
Civil Rights Investigations
White Collar Crime Investigations
Expert Testimony
Asset Discovery
Financial Investigations
Personal Injury Investigation
Family Law and Custody Investigation
Pre-Employment and Background Investigations
Witness Location, Interviews, and Statements
Premises Liability Investigations
The Process
How It Works
A clear, confidential path from first call to final report, whether you are an individual, an attorney, or a corporate client.
Why Gradoni & Associates
Former Law Enforcement. Corporate-Grade Documentation.
Founded in 1988 by retired law enforcement officer J.J. Gradoni, our team includes former police detectives and federal agents who bring the same standard of documentation to a corporate boardroom that they once brought to a courtroom. Attorneys and corporate clients return to us because our reports are built to be challenged and to hold up anyway.
We've built long-standing relationships with respected Houston criminal defense attorneys, including Jack B. Carroll, Katherine Scardino, and Mark W. Bennett, who count on us case after case.
Landmark Cases in Our History
Cases that Made Headlines
Over more than three decades, Gradoni & Associates has been trusted to investigate some of the most closely watched cases in the Houston area, including the Bellville family murders, a high-profile Bugatti insurance fraud case that drew national attention, and the Andrea Yates case, one of the most significant criminal cases in Texas history.
Open A Case
Speak With an Investigator, Confidentially
Every call is private. Attorneys and corporate clients can request a case consultation directly; individuals can reach our team the same way, at no cost.
Trusted by Legal, Corporate Counsel & You
What Our Clients Are Saying
Case Success Series
Real Investigations.
Real Results.
Every other month, we publish a Case Success feature detailing how our investigators helped an attorney, a corporation, or a family reach the outcome they needed. Details are altered, and imagery is illustrative to protect client confidentiality.