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Blue Systems International
- Surveillance
- Cyber Security
- PI
“I was working on a custody case that needed a PI to document and validate information, and I started with Keith as my PI, and he referred me to MJ to use for my PI needs.”
Best Private Investigators near Placentia, CA
These agencies serve Placentia from nearby bases in towns including Santa Ana, Orange and Tustin.
24 agencies listed · 5 open 24/7 · 15 open weekends · 23 rated 4.5+ · 10 show a license
Data verified October 16, 2026
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Peterson Investigations
- Communication
- Matter
- Team
“I recently did some business with Eric and his team at Peterson Investigations who were not only communicative from the start, they sure got the job done and have created an outstanding reputation of service!”
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Confidential Controls - Private Investigator
- Questions
- Sound
- Price
“This report had critical information that helped a legal case I was fighting, and because I got the report so fast, it made me less stressed and relieved.”
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Brapga Security Systems
- Supervisor
- Thanks to Them
- Homeless
“I called a few days ago and spoke with Santos, he gave me good information, he was interested in an event service, he explained its security structure very well and finally we reached an agreement, the day of the event arrived and I was satisfied.”
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JPL Process Service
- Fees
- Company
“After years of issues with larger nationwide legal services companies, I've been pleasantly surprised by the quality we've gotten from this "smaller" company.”
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DBM Private Investigator
- Expertise
- Prices
- Information
“Moreover, Derrick maintained clear communication and kept me informed every step of the way, which greatly eased my concerns and assured me that my case was in capable hands.”
The 24 agencies on this page are the private investigators listed for Placentia, CA. What each one states about its license, its specialties and the areas it covers comes from its own website; ratings and quotes come from public reviews.
Area overview: Placentia, CA
The 24 agencies on this page are rated from 4.3 to 5.0 across 465 reviews; 2 have 50 or more reviews and 23 are rated 4.5 or higher. The topics that come up most in reviews of the agencies on this page are "communication", "expertise" and "results". 5 are open around the clock; 14 are open on Saturdays and 11 on Sundays. 10 show a license on their websites and 4 have a BBB rating of A or A+. 17 have ten or more years of experience, the longest 48 years. 5 offer urgent consultations; 8 offer a free initial consultation and 1 lists coupons or special offers. 1 has Spanish-speaking staff. We have a website on file for all 24 of the agencies on this page; 20 publish a contact page and 20 list a public email. We count these figures across the agencies on this page; hours and prices change, so confirm the details with the agency before you book.
Which investigators listed for Placentia describe their work online?
All 24 agencies on this page have a website on file. Those pages are where an agency states its license, the kinds of investigation it takes on, and whether it works mainly for attorneys, for companies or for private clients. That last point changes how a report gets written.
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Lockjaw Legal Process Services
- Company
“You couldn't have a better person on your side !!”
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Gomez Investigations Unit- Detective Privado
“Whether you're going through a divorce, suspect a cheating spouse of infidelity, need a background check, or any need for investigations, Nestor and his well experienced team will go above and beyond to help you.”
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Excaliber Investigations
“Reliable, trustworthy and highly recommended investigated service.”
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Southern California Private Investigations
“I recommend Southern California Private Investigations Inc 100%”
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Tag Force Security & Patrol Services
“This company is so great the supervisor is someone who will do the most for you and asks for a tiny return just show up and do your job I am so greatful and so blessed to be there thank you Tagforce”
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Oeis Private Investigation
- Informative
“Maybe a suggestion is provide more resources in class for students to take home and use or study(handouts, websites, etc) probably just knitpicking but just an area for feedback.”
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Schubert Investigations
- Expert
- Know
- Expectations
“I would like to thank him individually and the entire company for delivering such outstanding and professional service for their clients and know that this brief review cannot encompass the full experience of being helped when so many other people ha...”
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Discreet Services
“Very responsive, quality work product”
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Santoni Investigations
“I received a referral to Santoni Investagations from another business owner who has used them for several years for background checks and surveillance.”
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Justice Solutions Group
- Background Checks
- Results
- Team
“I had a terrific experience with Justice Solutions: their work was excellent, prices were reasonable, service was terrific, turnaround was fast, and they overdelivered.”
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R.H. Young
- Process Server
“I can say without reservation that NTIS has been the most responsive to my needs and they have provided affidavits admissible in court to prove that we did our due diligence in notifying the tenants, thus protecting our clients and their estates.”
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C Jackson Investigations
“Cameron saved us a ton of possible future headaches and issues - he does really great work and have suggested him to other business owners and attorneys.”
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Elevate Investigations
- Background Check
- Information
“I was looking into night nurses and had Hannah run a background check on them.”
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Vision Security Consultants
“With today's growing security concerns, there is no better time to ensure that you have the best protection available. We will provide you with a free evaluation of your security and the safety of your business or family.”
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Galilean Investigations
“This investigation company did an excellent job they operate very fast and have a high level of professionalism!”
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Logic Investigations
“He is professional, great at communicating and Thorough.”
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AIB
“POV: You Searched This”
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Global Spy Agency
“They are nationwide and fully equipped with outstanding experience, spy gear and all the tactics an experienced pi should know.”
Private Detective Services in Placentia, CA Cost Estimates
Minimum cost
$310
Maximum cost
$9788
National Average
$1237
Avg Per Hour Rates
$129
$722
$2061
Average price range is based on 289 cost profiles
Why these companies made our list
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