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Diva Detective Investigations
“I recently had the pleasure of working with Diva Detective Investigations, and I wanted to take a moment to express my appreciation for their outstanding service.”
Best Private Investigators in Westlake Village, CA
24 agencies listed · 4 in Westlake Village · 9 open 24/7 · 18 open weekends · 20 rated 4.5+
Data verified October 17, 2026
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Elliott Investigative Services
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Aenigma Investigation Agency
“Close attention to the small details of my case made the difference”
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G4S Secure Solutions
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Security Guard Solutions
- Peace
- Company
- Team
“Hey there if looking for jobs this will be you best spot slide up don't be shy too ask any questions you have great gentlemen I'm really proud of you with that good idea”
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Assertive Security Guard Private Patrol Services Los Angeles
- Company
- Team
- Property
“Assertive security services is by far the best Security guard company they patrol on all my Seven eleven stores and Gas stations all around California they have professional supervisors and a lot of deferent patrol vehicles I was checking the camer...”
The 24 agencies on this page are the private investigators listed for Westlake Village, 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: Westlake Village, CA
4 of the 24 agencies we list are based in Westlake Village; the other 20 serve Westlake Village from towns including Woodland Hills (13 mi), Agoura Hills (4 mi) and Simi Valley (10 mi). 23 of the agencies on this page have a rating, from 4.0 to 5.0 across 238 reviews; 2 have 50 or more reviews and 20 are rated 4.5 or higher. When clients rate these agencies on specific qualities, they most often praise professionalism (96%), responsiveness (93%) and quality (74%). 9 are open around the clock; 17 are open on Saturdays and 17 on Sundays. 9 show a license on their websites and 2 have a BBB rating of A or A+. Domain records put 14 websites of the agencies on this page at ten or more years old; the oldest dates from 1998. 9 offer urgent consultations; 6 offer a free initial consultation and 1 is family- or locally-owned. We have a website on file for 22 of the agencies on this page; 19 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.
Which investigators listed for Westlake Village describe their work online?
22 of the 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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Allstate Private Investigations
“Todd was very easy to work with and was able to do the job in a fast and very reliable way.”
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Wolfe's Investigations
- Needs
- Review
- Team
“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.”
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J R Investigations
“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...”
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ATI Investigations
“Because of his excellent service and confidential investigation, I got a full accounting of the money that had been taken from the estate.”
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Quest National Security
- Property
- Company
“I had great experience working with Quest National security in our location and in several events we had this year before all the closures happened, they are proffesional prompt , reliable and communicate with you at all times.”
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Tier 3 Investigations
“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.”
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L A Detctives
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Blue Knight Global
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A1 Small Claims
“I trust him completely and will MOST DEFINITELY use his services in the future!”
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Doerner Investigations & K9 Detection
- Dogs
“If you have any investigative needs, I would highly recommend you call Doerner Investigations & K9 Detection!”
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USA Express Legal & Investigative Services
- Company
- Phone
“Since Joseph started visiting our firm (in Koreatown, Los Angeles) the issues we have encountered (lack of updates, slow service and response to emails) has been addressed.”
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Glucroft Investigations
“Glucroft took the time to explain to me how to recover my money, I tried to pay him for his advice and time and he declined and stated that "if he could help, he would".”
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Private Protective Services
“For all your security needs, big or small, look no further.”
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Blackbird Investigations
“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.”
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LJ Proprieties Private Investigations
“I feel so safe knowing he is only a phone call away and can be there within minutes if I'm in trouble.”
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Coastline Detectives
“I hired Coastline Detectives on many occasions over the years for difficult witness statements, background investigations, surveillance, and service of process.”
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Executive Investigation & Protection Agency
“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.”
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Walter Johnson & Associates
Private Detective Services in Westlake Village, 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 273 cost profiles
Why these companies made our list
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