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Professional Investigations

fully licensed and insured as required by Texas rules and regulations for private investigators.

Full Service Private Investigations
214-843-6703
Serving the Dallas Fort Worth Metroplex area
North Texas Premier Investigative Agency
Criminal Investigations

Criminal Investigations

John Demny is a retired Senior Criminal Investigator from Riverside County, California. John has conducted literally hundreds of complex criminal investigations ranging from misdemeanor crimes up to and including homicide investigations.
Family Law

Family Law

John Demny has worked with many private family law attorneys and the public regarding sensitive family law matters. John has a proven track record of obtaining pertinent information during his investigations to aid clients with what is needed to assist with their family law matter.
Background Checks

Background Checks

John Demny has conducted hundreds of background checks/investigations for governmental agencies, small businesses, corporations and the public. Information such as bankruptcies, judgements, liens, real property, asset search and criminal conviction information is gathered for these types of investigations.
Welcome

Welcome to

John Demny Private Investigations

John Demny Private Investigations is located in McKinney Texas, just north of Dallas and is a full-service private investigative agency providing a wide variety of professional and confidential investigative services to attorneys, corporations, small businesses, governmental agencies, insurance companies and private citizens.

John Demny is a retired Senior Criminal Investigator from Riverside County, California. John has conducted literally hundreds of complex criminal investigations ranging from misdemeanor crimes up to and including homicide investigations.

Texas License A04131501 Read More
Testimonials
Quote John was hired to help me find my birth father. Many years had passed since I had seen my father. I hired John because I wanted my children to meet their grandfather. John contacted me soon after and gave me the sad news that my father had passed away several years prior. John just didn’t stop there. He gave me the location of my fathers final resting place. My girls and I visited his resting place and as sad as it was, we were able to pay our respects and have some closure.
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Arturo G.

Quote I retained the services of John Demny Private Investigations to help me find a long-lost friend that I had lost track of ten years ago. Literally within hours I was put in contact with my friend and we picked up right where we left off. John did a terrific job!
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Luis A.

Quote I hired John after he was recommended to me by my attorney. John was instrumental in me obtaining primary parental custody of my five-year-old daughter. John did exactly as he promised and did his job with professionalism and understanding to all involved. I can’t thank John enough for what he did for us.
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Gilbert E.

Contact Us

Contact me for any investigative needs!