Best Private Investigators near Brea, CA

1 of these agencies is based in Brea; the others serve Brea from towns including Santa Ana (13 mi), Tustin (14 mi) and Fullerton (5 mi).

3 open 24/7 · 14 open weekends · 20 rated 4.5+ · 12 show a license

Data verified October 17, 2026

Patrick Goodrich Investigations Claim Services

Patrick Goodrich Investigations Claim Services

“Experienced investigations-claim services firm, offering a full spectrum of services: surveillance, interviews, record review, background investigations. PGINV”
In Business Since 2008
Licensed
Se Habla Español
524 E Imperial Hwy Ste. A-147, Brea, CA 92821
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Blue Systems International

Blue Systems International

(43)
  • Surveillance
  • Cyber Security
  • Background Checks
“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.”
Free Initial Consultation
In Business Since 2005
Licensed
Coupons & Offers
1580 E Edinger Ave t, Santa Ana, CA
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Peterson Investigations

Peterson Investigations

(50)
  • Communication
  • Matter
  • Information
“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!”
In Business Since 2015
Free Initial Consultation
Serving Brea Area
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Clete Security Services, Esq.

Clete Security Services, Esq.

(12)
  • Company
  • Patrols
“Indeed, it worked: The bad person figured immediately that this calm and soft-spoken man was NOT to be trifled with, and the usual belligerence was instantly replaced with polite and courteous behavior!”
In Business Since 2020
Coupons & Offers
154-A W Foothill Blvd #370, Upland, CA
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Brapga Security Systems

Brapga Security Systems

(15)
  • Supervisor
  • Company
  • Thanks to Them
“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.”
In Business Since 2016
Emergency Services
Serving Brea Area
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JPL Process Service

JPL Process Service

(27)
  • Fees
  • Priced
  • Communication
“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.”
In Business Since 2003
Accepts Paypal, Check, All Major Credit Cards, Debit
14482 Beach Blvd Ste X, Westminster, CA
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The 24 agencies on this page are the private investigators listed for Brea, 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: Brea, CA

22 of the 24 agencies on this page have a rating, from 4.3 to 5.0 across 333 reviews; 1 has 50 or more reviews and 20 are rated 4.5 or higher. 3 are open around the clock; 13 are open on Saturdays and 10 on Sundays. 12 show a license on their websites and 3 have a BBB rating of A or A+. Domain records put 16 websites of the agencies on this page at ten or more years old; the oldest dates from 2000. 3 offer urgent consultations; 8 offer a free initial consultation and 2 list coupons or special offers. 2 have Spanish-speaking staff. We have a website on file for 23 of the agencies on this page; 17 publish a contact page and 16 list a public email. We count these figures across the agencies on this page; distances are straight-line, and hours and prices change, so confirm the details with the agency before you book.

Do investigators listed for Brea discuss a case free?

8 of the 24 agencies state that a first consultation costs nothing. Use it to describe the problem and hear whether the work can be done lawfully at all. A straight agency will sometimes tell you on that call that what you want cannot be obtained, which saves you a retainer.

Lockjaw Legal Process Services

Lockjaw Legal Process Services

(5)
  • Company
“You couldn't have a better person on your side !!”
In Business Since 2021
BBB Rating: A
Free Initial Consultation
Serving Brea Area
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Gomez Investigations Unit- Detective Privado

Gomez Investigations Unit- Detective Privado

(4)
“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.”
Free Initial Consultation
In Business Since 2005
PILICENSE#2877
Accepts All Major Credit Cards
14311 Newport Ave g280, Tustin, CA
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Excaliber Investigations

Excaliber Investigations

(1)
“Reliable, trustworthy and highly recommended investigated service.”
In Business Since 1994
BBB Rating: A+
1440 W Hillandale Ave, La Habra, CA
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Southern California Private Investigations

Southern California Private Investigations

(2)
“Farzin and his team were a pleasure to work with during a very stressful legal case and difficult time.”
In Business Since 1992
Licensed
Emergency Services
310 W First St, Tustin, CA
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Tag Force Security & Patrol Services

Tag Force Security & Patrol Services

(3)
“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”
In Business Since 2007
Licensed
Free Initial Consultation
Serving Brea Area
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Schubert Investigations

Schubert Investigations

(24)
  • Expectations
  • Expert
  • Know
“After getting over the initial shock, financial ruin, and finding out about all of his other secrets (using numerous addresses, owing IRS, owing EDD for false statements, owing court collections, and even using a fake address somewhere else to claim ...”
Serving Brea Area
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Discreet Services

Discreet Services

(1)
“Very responsive, quality work product”
Free Initial Consultation
In Business Since 2018
Licensed
Transparent Fees & Pricing
Serving Brea Area
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Justice Solutions Group

Justice Solutions Group

(18)
  • Team
  • Background Checks
  • Results
“I had a terrific experience with Justice Solutions: their work was excellent, prices were reasonable, service was terrific, turnaround was fast, and they overdelivered.”
In Business Since 2015
Serving Brea Area
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R.H. Young

R.H. Young

(6)
  • Process Server
“There are so many process servers out there, but you don't know if they will just attempt to serve and still be unsuccessful; with Rob we don't have this problem because he is not only diligent but innovative in figuring out how to serve the opposin...”
In Business Since 2013
Licensed
Free Initial Consultation
Serving Brea Area
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Elevate Investigations

Elevate Investigations

(6)
  • Information
  • Background Check
“I was looking into night nurses and had Hannah run a background check on them.”
In Business Since 2023
Licensed
2271 W Malvern Ave #94, Fullerton, CA
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Logic Investigations

Logic Investigations

(2)
“He shared his knowledge and expertise regarding our case and stayed in close communication with me providing frequent updates.”
In Business Since 2011
Licensed
Accepts All Major Credit Cards
Serving Brea Area
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AIB

AIB

(2)
“Great meats”
In Business Since 1980
Licensed
161 Fashion Ln #200, Tustin, CA
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A Pineda Polygraph Services

A Pineda Polygraph Services

(1)
“Even though I gave him a hard time due to stress was extremely helpful and he possibly saved my marriage of 8 years.”
In Business Since 1985
Accepts All Major Credit Cards
Emergency Services
345 W Foothill Blvd Suite D, Glendora, CA
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PAX Investigations

PAX Investigations

(4)
  • Team
  • Attention
“I have utilized their services on multiple occasions and each time I have been throughly impressed with the professionalism and attention to detail their team has brought.”
In Business Since 2022
Licensed
Serving Brea Area
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Fugitive Recovery Agent

Fugitive Recovery Agent

(1)
“No fuss”
Upland, CA
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Global Spy Agency

Global Spy Agency

(1)
“They are nationwide and fully equipped with outstanding experience, spy gear and all the tactics an experienced pi should know.”
In Business Since 2014
Serving Brea Area
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Smarthire

Smarthire

(1)
“Back ground checks and private investigating”
In Business Since 1964
2250 Lindsay Way, Glendora, CA
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Gailey Associates

Gailey Associates

“The investigators at Gailey Associates have assisted attorneys and parties in litigation since the company's inception. We interview witnesses, canvass incident locations for additional witnesses and evidence such as surveillance cameras and photogra...”
In Business Since 2002
Licensed
Free Initial Consultation
Serving Brea Area
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Private Detective Services in Brea, CA Cost Estimates

Minimum cost
$300
Maximum cost
$9500
National Average
$1200
Avg Per Hour Rates
$125
$700
$2000
Fair price range is based on 341 cost profiles
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Average Cost $1200
Minimum cost $300
Maximum cost $9500
Avg Per Hour Rates $125

Fair range $700 to $2000 is based on 341 cost profiles.

Why these companies made our list

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