Highly Credentialed

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Areas of Expertise

Serving Dallas/Fort Worth/Arlington and the entire Metroplex

Most people go through life never even thinking about needing to hire a private investigator. There’s a strong chance you’re one of those people. Alliance Investigations understands that this is an unsettling time for you. We are a client-focused private investigation firm based in Arlington, TX, serving the Dallas-Fort Worth metroplex.

We specialize in private investigations for cases such as infidelity and workers compensation claims, as well as background checks and business surveillance services. If you suspect that your spouse is cheating, you require background checks on employees or volunteers, or need us to look into business matters relating to possible theft or forgery, contact Alliance Investigations today.

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Comprehensive Capabilities


At Alliance Investigations, we don’t only provide private investigation services and simple background checks. Our comprehensive suite of investigative and research services provides our clients with a completely scalable solution to their needs. Our local and federal enforcement experience has afforded us the ability to provide a range of professional services.

We specialize in pre-employment screenings, workers comp claims violation investigations, infidelity and cheating spouse investigations, corporation and LLC investigating, business surveillance and intelligence services. To learn more about how Alliance Investigations can assist you in your situation, simply give us a call.

Investigative Services

What People Are Saying

My friends told me a rumor that my husband, a long distance truck driver, had been arrested for a very disturbing sexual offense. When I confronted him, he lied and denied it ever happened. I turned to Alliance Investigations who were able to confirm the rumors. I needed the truth and they provided it.

Very affordable and very professional!”

Erica S.
Dallas, TX

I was in the middle of a bad marriage that was turning nasty. Alliance Investigations provided the information I needed to make serious decisions for my future.

They are trustworthy, confidential and very professional.”

Diane S.
Ft. Worth, TX

I was really in need of information when I contacted Alliance Investigations for help.

The professionalism and experience they exhibited solved my needs and eased my mind.”

Frank W.
Dallas, TX

I called and I got the help I needed. He was nice, ready to help me, and was fast. I wish I would’ve called sooner.

Thank you, Mike!”

Veronica S.

Mike Duncan was able to quickly and efficiently help us track down our “cheating” significant others. He kept in constant contact with us to update significant information. He was very professional and worked in a timely manner, so as to minimize our costs. He did exactly what we asked him to do, and the photos and videos he provided were exactly what we needed. He was easy to communicate with, and we felt like he cared about us. In other words, we weren’t just “another assignment”, but real life people whom he was genuinely concerned about. The information he provided was invaluable. We would most definitely use his services again.

Liz and Susan

Don't Delay


For suffering marriages, each passing day of speculation leads to compounded stress and anxiety. You know that the outcome of your specific situation could impact your future drastically. Get the answers you need now and get back to living a life free from suspicion. The team of professional infidelity investigators at Alliance Investigations stands ready to uncover the truth you need and provide you with the peace of mind you deserve.

Call Alliance Investigations to speak with an infidelity investigation specialist today to discuss your concerns, budget and end goals. We’ll provide you with expert, sound advice – and we provide all of our potential clients with a free consultation.

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