No Excuses - Just Results. Call: 314-359-1987

No Excuses - Just Results. Call: 314-359-1987

No Excuses - Just Results. Call: 314-359-1987


St Louis Private Investigator & Security Consultant - Call (314) 359-1987 for a consultation

Cornerstone Investigations & Intelligence is a full service private investigation agency headquartered in St. Louis, Missouri. We are the preferred vendor for over 100 top law firms and 130 businesses throughout the St. Louis area. Our team of state licensed investigators consists of former counterintelligence team chief, federal agents and decorated local law enforcement veterans. Our investigators are augmented by our support team consisting of computer, cellular, crime scene, DNA, video/audio forensics experts, a public relations specialist, a mental health professional and our legal counsel.

We primarily provide investigation and litigation support to individuals, businesses and law firms. Over the course of our careers we have conducted thousands of hours of documentable investigations. If your situation requires a professional team of investigators with a minimum of 15 years of professional experience we are the team for you.

We provide our specialized services to government, law enforcement agencies, law firms, corporations and private individuals. Reputation is everything in our business and as such we tackle the most delicate of situations with the highest level of discretion. We have the network, resources, state of the art equipment and experience to resolve your situation or obtain the information you require quickly, quietly and efficiently.

To schedule an in office consultation or to discuss your situation in detail call us now at (314) 359-1987.

To learn more regarding our capabilities and resources please see below for a sanitized summary of some of our work:

$250,000 Investment Fraud - We were contacted by a private client who suspected she was the victim of an elaborate investment fraud. The client had voiced her concerns to local, state and federal authorities but no action was undertaken. Upon validating her concerns we launched an extensive undercover operation resulting in the documentation of substantial evidence. At the clients request, we coordinated directly with state and federal investigators resulting in the federal prosecution of the subject. The subject entered a guilty plea was sentenced to 14 months in prison and was ordered to pay full restitution (including all investigative costs).

Infidelity - We were contacted by an out of state client who's spouse was coming into town for a convention. The client suspected her spouse was cheating and ordered surveillance. Surveillance was conducted and the client's spouse was videotaped as he spent the weekend engaging in an adulterous affair with a same sex partner. The client was provided with ample evidence to include a detailed report, photographs, video, night vision video, GPS tracking logs and receipts.

Blackmail and Extortion - We received a call from a senior executive with a large well known company who informed us that he was being targeted in an extortion scheme. As it turned out this particular executive was involved in negotiating a significant business deal at the time. We took over all communication posing as the client and opened an undercover investigation. Within 24 hours irrefutable evidence was secured proving that the other party involved in the negotiations had hired an individual to distract and harass our client in an attempt to gain the upper hand in the negotiations. Instead of simply neutralizing the threat we used the opportunity to provide the other party with misinformation seriously degrading their position while providing our client with actionable intelligence he was able leverage to his advantage personally and professionally.

Investment Intelligence - An investment firm client requested that we put together a profile on the senior executives of a potential acquisition as well as obtain intelligence from a conference that the executives planned to attend prior to the acquisition. In the course of the operation it was determined that a key senior executive had some "habits" that would have been a public relations disaster for the client had the executives actions come to light. In addition, valuable intelligence was collected at the conference. With our reports in hand the client had considerable leverage and was able to make an informed decision regarding the acquisition.

Competitive Intelligence - We were retained by a new landscaping company to identify the accounts of their top five competitors. We conducted surveillance on the client's competitors five days a week for three weeks enabling us to document when and where the competition conducted lawn care and landscaping. With this information in hand we were then able to recreate the competitors client list. After conducting some additional investigation we were able to determine the rates being charged by the competitors on each of the accounts. Our client was able to call down the list and offer excellent introductory deals based on the rate sheet we provided immediately increasing their revenue by 46% in just four weeks.

Missing & Endangered Youth - A youth diagnosed with psychological issues stole jewelry, cash and prescription medication from his family's home. We were requested to locate the youth and "intervene to ensure his safety" at which point we were to coordinate with local law enforcement to take him into custody on a psychiatric hold at the direction of his treating psychiatrist. We located the youth within six hours of the onset of the investigation. We recovered the cash and jewelry and the youth was taken into custody by local law enforcement without incident.

Please call (314) 359-1987 to discuss your situation by phone or to arrange a confidential consultation at our office. We are happy to provide you with any information you may need to make an informed decision with regard to hiring our firm.