Best Private Investigators in Thousand Oaks, CA

Handpicked from 103 vetted & reviewed Private Investigator & Detective agencies in the Thousand Oaks area, discover the top 5 leading options among the selected group of 24 finalists.

ATI Investigations

ATI Investigations

(3)
  • Professionalism
“His professionalism, along with his results have been excellent.”
Locally Owned & Operated
In Business Since 1995
Emergency Services
Thousand Oaks Boulevard, Thousand Oaks, CA
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Diva Detective Investigations

Diva Detective Investigations

(3)
“She is just a good person all around.”
In Business Since 2003
Licensed
3835 Thousand Oaks Blvd Suite 123, Westlake Village, CA 91362
i
Aenigma Investigation Agency

Aenigma Investigation Agency

(1)
“Close attention to the small details of my case made the difference”
In Business Since 2019
DVBE Certified
3435 E Thousand Oaks Blvd #3905, Westlake Village, CA 91359
i
Paul Chamberlain International

Paul Chamberlain International

“We offer a full range of litigation support services catering to law firms' interests and needs including white collar crime and background investigations, assets location, financial and insurance fraud inquires and witness location and interviews.”
In Business Since 2001
Serving Thousand Oaks Area
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J R Investigations

J R Investigations

(9)
  • Professional
“The team has done swift and thorough background investigations on too-good-to-be-true online dating scammers; served witnesses who had been trying to hide; found assets of defendants who were pleading poverty; and most recently helped a distraught da...”
Accepts Check, All Major Credit Cards, Paypal
In Business Since 1994
Emergency Services
Transparent Fees & Pricing
Serving Thousand Oaks Area
i
Best of 2024

Qualification Criteria for best of Winners

Minimum Overall Score
96 (100)
Minimum Reputation Rank
99.7 Percentile
All of our award winners are based on identifiable facts - reviews, performance, and experience - collected by scientific means. We use this data to assess each business’s essential features, weighting them according to their importance to customers.
Read our methodology
Prominent finalists
Ragan and Associates

Ragan and Associates

(15)
  • Professional
“They know how to get the job done and they don't give up no matter how hard it is to serve the person that needs to be served, especially when that person is avoiding you!”
Free Initial Consultation
In Business Since 2013
Licensed
855 Aviation Dr 201 A, Camarillo, CA
i
Quest National Security

Quest National Security

(13)
“We have approximately 15 construction sites throughout the town and are extremely happy with the professionalism and attention they are providing thus far.”
Emergency Services
In Business Since 2004
Licensed
Serving Thousand Oaks Area
i
A1 Small Claims

A1 Small Claims

(1)
“I trust him completely and will MOST DEFINITELY use his services in the future!”
Transparent Fees & Pricing
25+ Years Experience
Emergency Services
2551 Galena Ave #922, Simi Valley, CA
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Jim Rockford

Jim Rockford

(28)
  • PI
  • Job
  • Call
“He was a little rougher around the edges, and seemed to have a slightly harder time of things, but between the two of them they managed to solve my case.”
Serving Thousand Oaks Area
i
Tier 3 Investigations

Tier 3 Investigations

(10)
“The services were very much met to the touch got answers within minutes of me calling very good price very Professional n plus Gives very Good Advice I would definitely go through services again with this business Thank you very Much Mr.”
In Business Since 2020
Emergency Services
Serving Thousand Oaks Area
i
Rita King Investigations

Rita King Investigations

(1)
Family Law Matters, Adoption Investigations, Surveillance and Covert Investigations
“We are thrilled with the work you do for our firm, Cheers!”
Free Initial Consultation
In Business Since 2017
Emergency Services
Serving Thousand Oaks Area
i
Blue Knight Global

Blue Knight Global

Protection & Security Services, Private Investigations, Security Consultations
“Blue Knight Global Services team consists of dedicated professionals. Our senior management team collectively posses an average of 30 years of experience either as senior leaders from Fortune 100 company, law enforcement or other government agencies....”
In Business Since 2011
Emergency Services
Serving Thousand Oaks Area
i
Dga Detectives

Dga Detectives

In Business Since 1999
Emergency Services
4936 Verdugo Way, Camarillo, CA
i
Elliott Investigative Services

Elliott Investigative Services

“"As your private investigator, you have my personal guarantee your investigation will be conducted with the highest level of integrity, ethics, and professionalism--backed up with the expertise gained through my extensive experience, and worldwide as...”
Accepts All Major Credit Cards, Check, Paypal
In Business Since 2003
Free Initial Consultation
FBI Certified
Serving Thousand Oaks Area
i
Tausig & Associates

Tausig & Associates

(2)
“They took great care of me and made me feel like one of the family, even calling me back way after hours when he was not in the office.”
Free Initial Consultation
In Business Since 2017
Accepts All Major Credit Cards
1000 Paseo Camarillo # 227, Camarillo, CA
i
Blackbird Investigations

Blackbird Investigations

(2)
“I called around looking for a private investigator and after talking to Steve something in my heart told me if anyone could help me it would be him.”
In Business Since 2018
Serving Thousand Oaks Area
i
Executive Investigation & Protection Agency

Executive Investigation & Protection Agency

(1)
“She asked me to send her all the information, pictures, anything regarding my case that may be of interest and she said she would read it all that night.”
In Business Since 2019
Serving Thousand Oaks Area
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G4S Secure Solutions

G4S Secure Solutions

Serving Thousand Oaks Area
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Cowley Advisory Group

Cowley Advisory Group

“Cowley will be merged into Gryphon as its West Coast operation. Tom Cowley, the firm's founder is a former FBI agent with over 35 years of investigative, compliance and security experience in both the public and private sectors. Tom will stay on as a...”
In Business Since 2011
Serving Thousand Oaks Area
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Ensite Security Investigations

Ensite Security Investigations

“Located in Southern California, our local service area includes Los Angeles, Orange, Ventura, Riverside and San Bernardino Counties. We'll meet our clients' needs in Seattle, Portland, the San Francisco Bay area, San Diego, Las Vegas, Phoenix, Tucson...”
In Business Since 2017
Serving Thousand Oaks Area
i
Kinsey Investigations

Kinsey Investigations

(30)
Drug Testing
“Their dedication to professionalism and helping us understand what we were to expect from the service and actually caring about our situation made our experience less painful.”
Accepts All Major Credit Cards
In Business Since 2006
Licensed
4712 Admiralty Way Suite 866, Los Angeles, CA
i
Wolfe's Investigations

Wolfe's Investigations

(24)
Criminal Defense, Child Custody, Full Service Listing
“The author further explains in a post script that a key plot element involving a decision of a US President he does not think would really happen, it was done to set up what if scenarios.”
Accepts All Major Credit Cards
In Business Since 2013
Emergency Services
Licensed
Serving Thousand Oaks Area
i
Corporate Security Investigations

Corporate Security Investigations

(8)
  • Money
  • Job
  • Court
“Keith located and obtained the evidence that we needed to resolve our questions.”
Accepts All Major Credit Cards
In Business Since 2010
Emergency Services
Free Initial Consultation
25852 McBean Pkwy Ste. 515, Santa Clarita, CA
i
D.a.d. Protection Services

D.a.d. Protection Services

(6)
Specialized Services, Private Investigations, Executive Protection
“Been Dealing with DAD and Daniel for the past 8yrs For not only my investigative needs but also to provide armed guards and the highest quality of EP agents and Security Drivers for some of my client which are C-Suite Executives and wealthy familie...”
Emergency Services
In Business Since 2013
Free Initial Consultation
Accepts All Major Credit Cards
1000 Town Center Dr #300, Oxnard, CA
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Private Detective Services in Thousand Oaks, CA Cost Estimates

Minimum cost
$358
Maximum cost
$11307
National Average
$1429
Avg Per Hour Rates
$149
$834
$2381
Typical price range is based on 414 cost profiles
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Average Cost $1429
Minimum cost $358
Maximum cost $11307
Avg Per Hour Rates $149

Typical range $834 to $2381 is based on 414 cost profiles.

Why these companies made our list

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