The highest-rated Private Investigator & Detective companies out of 43 vetted & reviewed in the London area.
Learn how we score.
Top-rated companies A-Z in Dallas
Power Up Electric
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Noteworthy finalists A-Z in DallaS
Power Up Electric
Highlights Chicago Electrical Services
Sapphire Electric
Learn how we score.
Prominent finalists A-Z in London
ASV LAW
Alpha 1 Legal Services
Argo Investigations
Bravo Security
Conflict International
Eaglewatch Private Investigator
Helios Investigations
London Private Detectives
National Private Detective Force – Npdf
National Private Investigators
Nationwide Investigations Group
PEL Consultancy Services
Private Detective London
Private Investigator
Private Investigator London – Principal Investigations
Private Investigator UK
SPS Investigations
Sloane Risk Group
Tacet Global
The Local Detectives
Trojan Surveillance Private Investigator
Valorous Group
Verity Henton Private Investigations Mayfair
Westminster Security
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The Local Detectives
(28)
Job
Company
Evidence
“The Local Detectives carried out some investigations for my company in London, Robert was very professional and helpful.
Excellent job guys, thank you”
“Very happy with the service provided by this firm. I instructed them to gather information on my husband to see if he was infact living with someone - despite him lying in our divorce and claiming he was not. Safe to say I got the evidence I needed ...”
i
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Alpha 1 Legal Services
(18)
Surveillance Cases
“First Class.
Very professional service; my business has used this company several times over the last 4 years and have always been impressed by them. Would recommend Alpha 1 to anyone in similar position as we were. Thank you to the whole team.”
i
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Tacet Global
(9)
Legal and Other Services, Investigation Services, Security Services
“Super fast service. They found the person I wanted on the day they started the work. Am really impressed. Thanks guys!”
i
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Private Investigator London - Principal Investigations
(21)
Understanding
“Definitely I'll recommend this service. They are professional, and most importantly friendly!!
thank you very much”
i
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Nationwide Investigations Group
(7)
Fraud Investigations, Due Diligence, Tracing Missing Persons
“We use Nationwide Investigations Group and their team on a regular basis to cover our work south of london. They are always ready and willing to help out and deliver an exceptional service!
Competitively priced and often provide more information t...”
“I am a long term client and I would highly recommend them. Very professional and discreet. I wouldn't go anywhere else, service is excellent.”
i
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National Private Investigators
(19)
“Professional. Excellent service. Jack was great help. Received information within 5 days, very thorough and detailed. Definitely recommend to others. Great work Jack :)”
i
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Sloane Risk Group
(8)
Professional
Team
“Hired to deliver two training sessions on a specific topic to two separate groups of staff; good professional training received from the team on a technical subject, including practical sessions, and sourced subject matter experts on specific topics.”
i
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SPS Investigations
(3)
Surveillance, Bug Sweeps, Vehicle Tracking
“SPS handled my sensitive issue with the upmost professionalism. Shaun was exceptionally responsive and gained the evidence I required. I would absolutely recommend their service.”
“These guys were very helpful and efficient. Would definitely recommend”
i
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Private Detective London
(9)
Out of Hours Services, Matrimonial Investigation, Tracing Services
“Peter and his team are really professional, communicative, and easy to work with. I've worked with PDL for a couple of years now, and will continue to do so. Highly recommend!”
i
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Verity Henton Private Investigations Mayfair
(7)
“Pleasure to work with. Professional, knowledgeable and results are accurate!”
“Excellent and professional service. Don't listen to these google reviews. I am really surprised to see any low ratings. PEL were incredibly professional and understanding, and I highly recommend them. They are responsive, prompt and straightforward w...”
i
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London Private Detectives
(8)
Surveillance, Lie Detector Test, Digital Forensics
“Thank you again for your service. Highly recommend.”
“Great company, top surveillance operatives who are able to undertake complex surveillance work in central London successfully !!!”
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ASV LAW
(16)
International Arbitration, Commercial Litigation Strategy, Corporate Services
“This firm has been unfairly accused!!! Some low life has been using their name and credentials to scam people in several countries. Do not believe that these people have anything to do with that. I contacted them to alert them that I had been cont...”
i
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Argo Investigations
(1)
“they have been of great help in recovering money from our creditors”
i
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Conflict International
(1)
“A comprehensive range of excellent services!”
i
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Bravo Security
(11)
Team
“Bravo security provide exceptional security, professional staff and are diligent with organisation. For business events or other security requirements, I highly recommend Cezar and the team!”
i
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National Private Detective Force - Npdf
(2)
“Professional Investigator - very pleased with the results”
i
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Eaglewatch Private Investigator
(5)
“Good service professional and descret. Thank you”
“From the moment the phone operator took my call, and then put me straight through to the Operations Director, I knew I had made the right choice with Westminster Security. I experienced utmost professionalism, warmth, understanding of my situation an...”