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Sulivant & Sulivant Investigations We are a full service state licensed, bonded and insured private investigative firm offering many proven, services at available rates to law companies, public and private entities, insurance businesses and persons.

We have a network of investigators with the skills, training, euipment and specialization to meet all of your investigative requirements, and are dedicated to making a professional, thorough and quick investigation at any case and time.

Your confidentiality is significant, that is why we are handling each client's confidentiality with the utmost importance. We will fulfill each case with a personal quality. We are trying to bring results and provide feedback in every situation.
Served areas
  • State of Oklahoma
Associations and certifications
  • Better Business Bureau, Oklahoma Private Investigators Association, Tulsa Metro Chamber
  • National Council of Investigation & Security Services, Fraternal Order of Police
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Services
Sulivant & Sulivant Investigations is a Full Service Oklahoma Private Investigation Agency, providing comprehensive investigative services customized for a vast array of clients nationwide. We start with fragments of information provided by the client, then utilize our unique investigative resources and expertise to build a comprehensive background check report.
Usually a 24-hour notice is adequate. It is often possible to start a case immediately. The information obtained by our licensed investigators will be courtroom quality evidence of all pertinent activities. Our investigators can also provide expert witness testimony. Please provide us with a physical description as well as any photos of the Subject.
When you come to us for a free initial consultation, you will receive personal attention and an experienced assessment of your case. If you have a situation that requires an investigation in Oklahoma don't hesitate to take action.
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(918) 895- 2530
Reviews (16)
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Christopher Holm
Mar 30, 2021
I found them knowledgeable and helpful. Their prices were upfront and reasonable. I will definitely use them again in the future.
Kelly W.
Nov 24, 2020
I have hired them three times to do background and asset reports. I have never been disappointed with the results. They are affordable and reliable.
Sandra Godsey
Sep 15, 2020
Took the time to explain services, process and cost. No BS here
D. Martin
May 08, 2020
Used this firm in a pinch and they handled everything quickly, very precise and thorough! You won't go wrong with this firm!
Priscilla Crider
Dec 04, 2019
Very professional and efficient. Always prompt in their replies. They have helped me gather all the info that I need for my case. Most importantly they care. It was a pleasant experience working with them. I would highly recommend their service.
Heidi Farquharson
Nov 05, 2019
This service was insanely helpful and accurate. I called them in the middle of the night. Around 3 AM if memory serves. I couldn't sleep due to the situation. They were more than accommodating. I had previously called the PI service above theirs on Google, Tulsa Private Investigations, LLC but the lady that answered asked if it was an emergency and scolded me for the late hour and promptly hung up on me even though the hours stated they were open 24/7. Sulivant and Sulivant promptly answered and talked to me for an hour. Emailed me immediately and sent me the results within a VERY short period of time.

The fee was also very reasonable. Much less than I had expected. I will be using their service again! Doesn't matter if it's a background check on a babysitter or to look up an opponent in a lawsuit if the need arises, or just to check out a phone number. These WILL be my go to guys from now on. Thanks a million, guys! You are soo appreciated!
Scott Vereb
Aug 16, 2019
Thorough, professional, (and most important), efficient! Speedy resolution of cases. Highly recommended!
Susan Frazier
Dec 29, 2018
The service was provided quickly, professionally and comprehensively. I was impressed with the followup with me to inquire if I had questions and to explain several items in the report. Staff were all professional, polite and extremely helpful. They went the extra mile to provide the information I needed. Thank you.
Ken Bennefield
Jun 01, 2018
Excellent service. Completed job as promised. Highly recommended. Professional service worth your consideration.
Ryan Roach
Apr 10, 2017
These folks are professional and very effective. They helped me out in ways I can not describe. I recommend anyone needing these types of services greatly considers this group. They won't let you down!
Paula D.
Feb 04, 2017
I have never had to hire anyone regarding a service of this nature. The people I talk to here were professional and kind. Made me feel that I wasn't asking stupid questions and were very helpful and reasonable. Really worth it to me!
Paula D.
Feb 03, 2017
I have never had to hire anyone regarding a service of this nature. The people I talk to here were professional and kind. Made me feel that I wasn't asking stupid questions and were very helpful and reasonable. Really worth it to me!
John Babyar
Jan 08, 2017
I have used this PI firm to assist me in some big cases twice in the last year. If not for their diligence in locating some evidence that had been moved from Arkansas to Oklahoma my client may have been wrongly convicted of a felony.
Ryan Roach
These folks are professional and very effective. They helped me out in ways I can not describe. I recommend anyone needing these types of services greatly considers this group. They won't let you down!
Susan Frazier
The service was provided quickly, professionally and comprehensively. I was impressed with the followup with me to inquire if I had questions and to explain several items in the report. Staff were all professional, polite and extremely helpful. They went the extra mile to provide the information I needed. Thank you.
Cory Lee
Helped me find the truth. Very diligent and responsive. Highly recommended!