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Grindstone Investigations
Granbury & Ft. Worth, TX.

Trusted by attorneys, corporations, and individuals — we specialize in person locates, asset investigations, and professional background checks.

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Precision. Discretion. Results

With decades of investigative experience, we offer unmatched skill in tracking missing persons, verifying backgrounds, and supporting sensitive legal and HR cases. Whether you’re an attorney preparing for litigation, a city agency managing risk, or an individual in need of answers — we deliver

Missing Persons & Witness Locates

Asset Investigations

Background Checks for Employment & Security Clearance

Wrongful Death, Injury & Workplace Investigations

Harassment & Discrimination Investigations

HR Investigative Support

Precision. Discretion. Results

With decades of investigative experience, we offer unmatched skill in tracking missing persons, verifying backgrounds, and supporting sensitive legal and HR cases. Whether you’re an attorney preparing for litigation, a city agency managing risk, or an individual in need of answers — we deliver

Missing Persons & Witness Locates

Asset Investigations

Background Checks for Employment & Security Clearance

Wrongful Death, Injury & Workplace Investigations

Harassment & Discrimination Investigations

HR Investigative Support

Specialized Services

Person Locates

Fast, discreet tracking of missing persons, witnesses, estranged relatives, and hard-to-find individuals

Asset Investigations

Locate hidden or unknown assets for legal, divorce, or estate purposes

Background Investigations

Thorough, documented background checks designed to meet the highest standards — whether for pre-employment screening, public safety roles (police, fire, EMS), or corporate hiring

Corporate & HR Investigations

Address workplace incidents professionally: violence, discrimination, and compliance support

Criminal Investigations

Build a stronger case with fact-driven investigative support for criminal defense or prosecution. We deliver detailed reports that stand up in court

Civil Investigations

Support your civil cases with comprehensive investigations for wrongful death, personal injury, liability, and workplace disputes. Our findings help attorneys and clients uncover the truth and pursue justice with confidence

What Our Clients Say

John has tremendous work ethics, he is a very pleasant person and very reliable. Have had great results with working with him. I very highly recommend John for any tasks or positions needed
Natalie
John is a professional beyond reproach. You can contact John and know your information will be held confidential. Also, know that John is working for you in the highest capacity on your behalf
Katherine

I recently hired Mr. Avila and was extremely impressed with his attentiveness to detail. The results he provided were more than what I asked for and he was very sensitive in regard to the subject matter being investigated.

I would highly recommend Mr Avila. Beyond having years of experience, his integrity alone, rates him much higher than other investigators

Darla

Get in Touch Today

Fast, discreet tracking of missing persons, witnesses, estranged relatives, and hard-to-find individuals

Name

530 N. Crockett St. #721
Granbury TX 76048
Texas PI License #A28372501

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