Alessi Investigations

Fantastic experience: I’ve had Mr. Alessi help me serve my defendant for 3 different cases. He’s very fast to respond and phenomenally helpful!

Fantastic experience: Quick response Didnt obtain services due to cost. Price seemed very reasonable for services provided. I already have my own proof of info originally desired. Let me know if your hiring ...I love this stuff when necessary

Fantastic experience: Best investigator/process server that I have used in my 6 years of paralegal work.

Fantastic experience: Alessi Investigations is one of the most professional, confidential, investigation teams I have met. They are very well trained and committed to getting the job done. I highly recommend them for all your investigation needs.

Fantastic experience: I had my first experience with this team, and let me say that it was professional. They waist no time in getting the job done. These people gets your man!! Darrin Brewer.

Fantastic experience: Was very helpful with what I needed and I would definitely use them again.

Fantastic experience: I found Mr. Alessi to be very professional, and thorough. He will literally leave no stone unturned to find the truth.

Fantastic experience: Very fast and prompt service. Always finds my difficult people and is always willing to go above and beyond what is asked. Highly recommend.

Fantastic experience: Nathan is very nice to work with. I will use him again if needed.

Fantastic experience: Great job and fast service!

Fantastic experience: Highly recommended.

Fantastic experience: I have been a paralegal for 23 years and Nathan Alessi is the best PI and process server I have had the pleasure to work with. He gets the job done and he will not stop trying to locate an individual until he finds them. I highly recommend you use Alessi Investigations.

Fantastic experience: Alessi Investigations is the best PI Tulsa has! Very efficient and professional. I highly suggest and recommend Nathan for all your PI needs.

Fantastic experience: We've used Nathan's services for years. Nathan is consistently reliable, professional, and responsive. Highly recommended!

Fantastic experience: Alessi Investigations is wonderful. They really helped me out. I'm so thankful for them!

Fantastic experience: Best Private investigator in the state! Too many people are incompetent in their job. Alessi investigations is the most competent private investigation agency you will ever deal with. Don't hesitate to call, you will be glad you did!

Fantastic experience: If you're looking for a reliable and trustworthy PI, who completes the task and is cost efficient, then look no further. Nathan Alessi is the best in the business and is a business man who operates with good character.

Fantastic experience: We use Alessi Investigations for all of our Legal Process Service and they are the Best. They continually go above and beyond our expectations with fantastic service and communication. Highly Recommend.

Fantastic experience: We've used Alessi Investigations for years and Nathan never ceases to deliver the best customer services in the industry.

Fantastic experience: I have never used Alessi Investigations, but I do know Nathan Alessi - and have for over a decade. He is a laid back and gregarious man, with a drive to do the right thing, find the truth, and is honorable, even when he doesn't have to be. I know several people who have used him, (Some at my recommendation) and none have been disappointed. If I had a need for a P.I. , there is no other I would turn to.

Fantastic experience: My company has used Alessi for over 2 years and if you're looking for a reliable investigator, give Alessi a try. I can always count on Nathan to find the answers I need.

Fantastic experience: I wouldn't use anyone else! Nathan is a man of integrity and he charges the right amount of money for his services. Thanks for doing a great job!