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Antioch Private Investigators

Browse these private investigators with great ratings from Thumbtack customers in Antioch.

  • 20 years in business
  • 105 hires on Thumbtack
Sonja D.
Verified review

I called from out of town to set an appointment for the service of papers. My call was answered immediately and followed up with a text giving me all the directions,and information for my request. I emailed the documents over with payment through PayPal (so easy!). Had I not put down the wrong address, the service would have been complete in less than 8 hours from our initial conversation! The next day, first thing in the morning I received a text that the service was complete and my documentation was emailed. So professional!!! I highly recommend Rivera & Associates Private Investigators!!!

Nero & Associates
4.6
from 54 reviews
  • 16 years in business
  • 143 hires on Thumbtack
Araceli M.
Verified review

Excellent service! My investigator made me feel secure and safe about this process.

  • 23 years in business
  • 102 hires on Thumbtack
Antoinette M.
Verified review

Moses and Julia were handling my case and did a phenomenol job. I am forever grateful for Eagle Investigations. Moses is dedicated to his line of work, and my safety was his first priority at all times. He went above and beyond what was expected and I recommend their services to anyone out there needing a process server or private investigator or both! They will get your job done, no questions asked.

  • 3 years in business
  • 90 hires on Thumbtack
Ernest G.
Verified review

Personable. Anxious to help. Trusting. Investigation still in progress so to early to give a complete critique.

  • 13 years in business
  • 42 hires on Thumbtack
Dina R.
Verified review

K&K Confidential Investigations responded to my request for service immediately. They were very professional and took care of the process service within hours of speaking.

  • 6 years in business
  • 23 hires on Thumbtack
Sydni T.
Verified review

John got into contact with me immediately and performed great, accurate service and was very friendly, professional, and helpful. Highly recommend him as a private investigative resource that is cost effective.

STMI Investigations
5.0
from 10 reviews
  • 4 years in business
  • 21 hires on Thumbtack
Cathy H.
Verified review

STMI, Did a excellent job on my very difficult case. Dave was very compassionate and understanding to my needs.He went above and beyond what he was hired to do for me. He comforted me and kept me calm throught the case. I would absolutely recommend him if you need a great P.I.

Krollpfeiffer & Co.
4.4
from 8 reviews
    Shem I.
    Verified review

    It's a business nightmare. I had a trusted employee whom I suspected of stealing large sums of money over an extended period of time. I didn't know what to do, but I did know who to call. I contacted Stephen Krollpfeiffer and explained the situation. He knew that if I confronted the employee I could be opening a legal can of worms. He instructed me to go about my business as if all was fine. He began his investigation and had soon documented proof of the theft. He even handled the termination. I appreciate that Stephen was very sensitive to my company's needs, and other than a few key individuals, no-one knew anything had happened. I was able to continue to focus on business and, thanks to Krollpfeiffer and Co, we never missed a beat. Now Krollpfeiffer and Co performs background checks on all new hires, so I'll never find myself in the same situation again. If you own a business, you can't afford not to have this same protection.

    • 18 years in business
    • 1 hire on Thumbtack
    Luke V.
    Verified review

    Central Investigation found bank accounts offshore that helped me collect on an old judgement I had from 7 years ago. Highly recommended Danny and his team.

    • 31 years in business
    • 29 hires on Thumbtack
    Colleen R.
    Verified review

    Frank was quick to respond to my request and was able to provide fast , affordable service. I would use him again in the future. He provided me with excellent video needed for my court hearing.

    Delphi Investigations
    4.2
    from 5 reviews
    • 43 years in business
    • 3 hires on Thumbtack
    Courtnee R.
    Verified review

    I had a need for a private investigator for a very complex matter involving several states and a foreign country. The first company I hired didn't do a good job at all. I then found Delphi Investigations in California. After a brief consultation I hired them feeling very comfortable with their abilities They handled the case in a very professional manner and the results were better than anticipated, especially the part involving the foreign country and Interpol. I highly recommend Delphi Investigations to anyone needing truly professional investigators. Courtnee F. Rex Seattle, WA

    Fishbaugh and Associates
    5.0
    from 1 review
    • 10 years in business
    • 1 hire on Thumbtack
    Nick G.
    Verified review

    Fishbaugh and Associates has helped me a couple different times now. Connie was amazing at getting me the answers I needed fast and I thought the service was very affordable. I will use them again if needed.

    Robert H.
    Verified review

    I have worked with Mr. Sanchez for many years. Mr. Sanchez is a skilled investigator and his vast experience will guarantee a quality work product. His experience will often reduce the hours needed to complete your case and reduce the end cost to the client. If your case involves the need for speaking Spanish, Mr. Sanchez is fluent in Spanish and you will save the cost of an interpreter. Mr. Sanchez is very trustworthy and you can be certain your case will remain confidential. Mr. Sanchez has my highest recommendation. Best regards, Robert Hessee Hessee & Associates Investigative Services

    About

    I Provide a Quality Product for a Great Price!

    About

    We provide surveillance video, interview, honest employee, research, property, backgrounds, locates, security and protection. We are professional and discreet.

    • 6 years in business
    About

    We are licensed private investigators in northern California. We have networked with many talented attorneys, investigators, and law enforcement members. At Valley Investigations, we take our vast law enforcement, surveillance, and litigation experience and put it to work for you! Contact us today for a free consultation 24/7.

    • 4 years in business
    About

    I am here to help you get answers. I am available 24/7, and I will do my best to get the proof you're looking for.

    • 27 years in business
    About

    integrity; professionalism; attention to detail; you will know the facts as they are uncovered "not" what you want to hear. There is no benefit to you in a proceeding if you are blind sided by details that should be revealed in the normal course of investigation.

    About

    Custom Protection and Investigation provides private security guard, private investigation, process server, mobile notary/notary signing agent services.

    About

    ASAP Investigations provides legal support to attorneys in both civil and criminal matters. Our staff is highly trained and dedicated to our clients' needs. ASAP Investigations offers polygraph testing to the public as well as many other services.

    • 8 years in business
    • 4 hires on Thumbtack
    About

    Nate is a California licensed private investigator (PI), with 6 years of experience and is operating out of the San Francisco Bay area. In addition to his experience as a professional PI, Nate served in the US armed forces, a private contractor in the Middle East and a vice and narcotic detective operating a K-9. Nate is a well-respected and trusted individual who has assisted his clients with sensitive investigations and work, to include the following: * Surveillance * Background checks * Computer forensics * Counter surveillance * Armed escorts * Protection services * Infidelities * Poor business practices * General monkey businesses * Tenant/landlord disputes * Vehicle tracking * Business disputes

    Q & A

    Answers to commonly asked questions from the experts on Thumbtack.

    What does a private investigator do?

    First and foremost, good private investigators follow laws. Unlike on TV, they don’t break in windows or hack into hospital computer systems to get you intel. When you hire a private investigator, you’re hiring a professional to gather facts and find information for you. Although they can’t obtain certain information (such as health records), they do have access to information that most civilians do not. Often private investigators are hired to perform surveillance or background checks or investigate cases such as adultery, child custody, missing persons, hidden assets, or debugging, and theft or other crimes.

    Private investigators can be hired to interview people and provide that information to the client, perform photo or video surveillance, monitor activity at a location where you suspect criminal activities or questionable behavior, track a person’s movements, find missing people, do deep-dive background checks, and more. Private investigation can be helpful if you’re trying to get a court order but need evidence. Private investigators can also help find birth parents. Nationally, the average price range for private investigation is $70-$210 per hour.

    What does a private investigator cost?

    Private investigation isn’t just for blockbuster action movies. Hiring a private investigator can help in all kinds of situations ranging from finding a birth parent to improving personal security. Nationally, the average price range for private investigation is $70-$210, although pricing often hovers between $40 and $100 depending on the complexity of the services you need. Where you live in the country will affect your costs for private investigation; larger cities have higher business overhead and a higher cost of living, which in turn means higher service rates. The complexity of your case can also affect cost. A basic background check may have a flat rate, while hiring a private investigator to help with your child custody case may require more legwork and research, and therefore cost more. Some private investigators work on retainer. A retainer is essentially a nonrefundable deposit you pay to the professional — meaning you have retained their services — who then works against that amount. Here are some examples of average private investigation costs:

    • Hourly rate: $60-$70; costs can vary based on current fuel prices.
    • Flat rate: $100 for comprehensive background investigation services.
    • Retainer: $1,500 minimum retainer required by some pros before starting work.
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