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Your Best Choice For Professional and Ethical Investigation and Security Consulting Services.

Our team serves Dallas and Fort Worth with unparalleled skills in the fields of investigation and security consultancy.

At Purple Mountain Associates, our team is committed to providing you the most cost-effective professional services available.

Purple Mountain Associates is equipped with cutting edge industry technology, techniques, and specialized training in order to satisfy our clients’ need for thorough, diligent collection of evidence and dedicated, up-to-date, step by step processes and procedures.

We provide all our clients with frequent project updates and consultations. We finalize all our written assignments by providing you, our client, with an executive summary report detailing the entire investigation or assignment.

A relentless pursuit for reliable and trustworthy information is at the heart of everything we do. Truth is why we take a closer look at things, ask questions, and think ahead with our clients best interest in mind.


Professionally Licensed and Acredited


Bonded and Insured


Disabled Veteran Owned Company

Talk to an Investigative Consultant today!

Karl Snow, MBA, LPI

President and Principle Consultant / Investigator

Mr. Snow currently owns and operates Purple Mountain Associates, a Service-Disabled Veteran Owned Business.  Mr. Snow holds a Master of Business Administration (MBA) from Southern Methodist University (SMU), and a Bachelor of Arts degree in Human Resource Management from Ashford University.  He is also an experienced law enforcement officer certified by the State of California and Federal Law Enforcement Training Center (FLETC) and is a United States Army Iraqi War Veteran having served with the 2nd Ranger Battalion, 75th Ranger Regiment and other units in Iraq and other overseas locations. As a Texas Licensed Private Investigator, Mr. Snow is a Certified Missing and Exploited Children Investigator and a member of Reclaim 611, a Charitable, Non-profit organization combating human trafficking.

Gregory Lilyhorn, BSCrJ, CFC, CAS, CPP, CHS-V

Senior Consultant

Mr. Lilyhorn is an accredited and certified practitioner with over forty years of diverse broad-based knowledge and experience in security risk management and law enforcement. He is a graduate of the University of Nebraska and a Vietnam war veteran having served in the USAF Security Police in southeast Asia. Mr. Lilyhorn retired from the U.S. Department of Homeland Security as a law enforcement and security specialist after over twenty years of service. He was then employed as a security and investigative specialist by with Tenet Healthcare Corporation, one of the nation’s largest for-profit healthcare organizations. Mr. Lilyhorn is an accomplished “Toastmaster” guest lecturer, and a seasoned speaker who’s an experienced state licensed instructor in law enforcement and private security. He is also an accredited court-qualified expert with “successful court case experience” in formal reviews and detailed written opinions on matters involving: premises liability, foreseeability, negligent or inadequate property protections. He has contributed to a number of articles and pod-casts and can be found on a number of professional websites such as and LinkedIn. He is also listed in the prestigious Marquis Who’s Who  Directory which is a listing for colleges, universities, and public library directories world-wide in recognizing highly successful individuals in varying areas of professional expertise. Mr. Lilyhorn’s security risk and emergency management expertise is unique with significant and substantial experiences and accomplishments. Additionally, his career experience in complex criminal and corporate investigative matters is highly noteworthy.

Working with Purple Mountain Associates

Independent & Objective Advice – we are not affiliated, and we do not accept fees, commission or other valuable consideration from any manufacturer, organization, or individual whose equipment, supplies or services we recommend.

Ethical & Confidential – Our professional staff are members of the leading organizations for security professionals, where they pledge and are mandated to adhere, adopt, and promote their codes of conduct, confidentiality, and ethics as a binding condition.

Competent & Certified – Our multidisciplinary, independent consultants are experts in their fields; they hold and maintain a number of industry certifications

Broad Market Exposure – Our experts bring their gained and valuable knowledge from a variety of market sectors and industries such as government, education, energy, critical infrastructure, sports & entertainment, residential, telecommunications, healthcare, agriculture, commercial, and hospitality.

Expertise- Our select team of professionals bring years of security and investigative expertise in Texas, regionally, and national security industry and are part of an elite group of respected consultants with case/project experience across four decades.

Multidisciplinary proficiency- We draw on our multidisciplinary background to bring you, the client, the right balance of expertise and a practical perspective on addressing your multifaceted security and investigative needs and aligning them with current realities of security threats..

Initial Consultation

Request a free consultation from our team to help us understand your needs and goals.


Our team excels at finding effective solutions to your needs and use this to your advantage.

Final Documentation

You will be provided with a detailed documented outline that will hold up against scrutiny in the court of law.