Private Investigation Services in Dallas, Texas
While many people search for a “private investigator,” our work typically involves complex, multi-phase investigations requiring strategy, discretion, and advanced resources.
Advanced Surveillance Operations
Strategic, multi-day surveillance designed for complex or sensitive investigations.
Why Hire a Professional Private Investigator?
Because Information is Your Best Defense
At American Special Investigative Group (ASIG), we work with clients in Dallas and throughout the surrounding region on complex investigations requiring precision and discretion. Our team includes former law enforcement and intelligence professionals supporting legal teams, corporations, and individuals navigating high-stakes matters.
Our Process: How We Uncover the Truth
A structured, strategic approach from consultation to results.
The Confidential Consultation
Every engagement begins with a confidential consultation where we evaluate your situation, understand your objectives, and determine if the case aligns with our scope of work. This ensures we focus on cases where we can deliver meaningful results.
Strategy & Case Planning
Based on the consultation, we develop a strategic plan outlining the appropriate approach, resources, and timeline required for complex, multi-phase investigations.
Investigation & Fieldwork
Our team conducts investigations in Dallas and across our extended network, utilizing advanced research methods, professional databases, and strategic surveillance when required.
The Final Review And Report
Once the investigation is complete, findings are compiled into a detailed, professional report. We review the results with you to ensure clarity, accuracy, and readiness for legal or strategic use.
The Intelligence & Experience You Need, The Precision You Expect
Why Choose ASIG?
At ASIG, we approach investigations with a structured, strategic mindset designed for complex and high-stakes cases. Our team combines law enforcement, intelligence, and forensic expertise to support complex cases requiring discretion, strategy, and precision.
From complex financial investigations to multi-phase surveillance and litigation support, our work is designed for cases where accuracy and discretion matter most.
ASIG Investigations is fully committed to providing the best service possible
Years of Combined Experience, and Counting
Clear Answers. Proven Results. Complete Discretion.
A Private Investigative Firm Built for Complex Cases
At American Special Investigative Group (ASIG), we focus on complex investigations requiring discretion, strategy, and high-level resources. Our team is composed of former law enforcement and intelligence professionals who support legal teams, corporations, and individuals navigating high-stakes situations.
We approach each case with precision and planning, ensuring that every investigation is structured to produce accurate, defensible results. Our work is designed for clients who require more than surface-level answers.
From Dallas to nationwide investigations, we operate with complete confidentiality and a commitment to delivering clear, actionable findings.
Frequently Asked Questions About Private Investigations
What to Expect When Working With ASIG
Hiring a private investigator for a complex or sensitive matter often comes with important questions. At ASIG, our work is focused on strategic, multi-phase investigations for legal, corporate, and high-stakes cases. Below are answers to common questions about how we operate, what to expect, and how to determine if your case is the right fit.
ASIG focuses on complex, high-stakes investigations supported by professionals with backgrounds in law enforcement and intelligence. Our work is structured, strategic, and designed for clients who require more than basic investigative services.
Look for experience, discretion, and the ability to handle complex investigations. Not all firms operate at the same level, many are structured for basic or short-term cases, while others specialize in more advanced investigative work.
We take on a limited number of personal cases when they require documented evidence for legal proceedings. We are not typically structured for short-term or one-time surveillance requests.
We focus on litigation support, corporate investigations, advanced surveillance, and complex intelligence work. Our services are best suited for cases requiring discretion, strategy, and documented evidence for legal or business use.
Yes. We work with clients locally and across the country, depending on the scope of the investigation. Many cases require coordination beyond a single location.
Timelines vary depending on the scope and complexity of the case. Most investigations are multi-phase and designed to ensure accurate, defensible results rather than quick or surface-level findings.
Yes. Licensed private investigators operate within strict legal guidelines to ensure that all information is obtained lawfully and can be used for legal or professional purposes.
Costs vary depending on the scope and complexity of the investigation. At ASIG, most engagements are structured as multi-day or multi-phase investigations rather than hourly or one-time services. We are best suited for clients requiring in-depth, strategic investigative work.
Dedicated To Your Success
Meet Our Experts
Our professional investigative team is made up entirely of former law enforcement professionals, US intelligence agents, and industry-leading experts in various fields of investigations within the private sector.
Proven Results, Trusted By Many
Client Testimonials
When I’ve seen them on the news for high profile cases throughout the years I figured they’d be really good but not this good. I have to say Trent and Tim were absolute rockstars and did an incredible job for me and my attorneys! If you’re in need of top notch investigators give them a call
AZ’s best investigative agency. They have a Scottsdale / Phoenix office that I have worked with and have always been impressed with the unique abilities, backgrounds, and resources of the team. Thank you for making them a resource for Flagstaff and the surrounding areas
When I needed a private investigator in Sedona Trent took care of my case. The investigator was very experienced with the area from restaurants to hiking trails and was able to stay undetected all weekend while getting really good evidence for my case so I would definitely use them again
I’m glad that ASIG expanded beyond their Phoenix office as we have had needs to investigative services in Flagstaff with our company expanding. Their services is beyond 5 stars and I can highly recommend them
As Seen On
Expansive Service Area
We’re More Than Local
Our team has created a wide network of investigative professionals from varying fields of investigation and intelligence. With our vast team, we are able to serve you regardless of the nature of your case and in multiple locations nationwide. We make great efforts to have a specialist available that can assist you in finding the information you need.
