Best Private Investigators in Harpenden

The highest-rated Private Investigator & Detective companies out of 40 vetted & reviewed in the Harpenden area.

Enigma Investigations - Private Detective Agency London

Enigma Investigations - Private Detective Agency London

(21)
  • Professional
  • Company
“Don't usually write reviews but had to , Amazing professional company That got the job done, And provided all the right information required will definitely be using them again saved lots of money and completed the job before the deadline that I ne...”
Emergency Services
Serving Harpenden Area
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Private Investigator UK

Private Investigator UK

(27)
Stalking Investigations, Mobile Phone Number Tracing UK, Investment Fraud Investigations
“An amazing service. Definitely worth the money. I had a little issue that I needed to clarify and are they safe was able to address the issue in a professional timely manner. I would recommend all!! 5 stars”
In Business Since 2013
Free Initial Consultation
1st Floor, 2 Woodberry Grove, London N12 0DR
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Focus Detectives

Focus Detectives

Missing People, Matrimonial and Relationships, Background Checks
“Focus Detectives provides investigation services throughout the whole of the UK, 24hrs a day, 7 days a week. All of our private investigators are licensed and have vast experience in all fields of investigations, corporate sector, locating missing pe...”
Licensed
Emergency Services
Free Initial Consultation
Serving Harpenden Area
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E1 Security

E1 Security

(1)
Private Investigation, Door Supervisors, Close Protection
“Have used E1 multiple times in my property management role, going back 5 years - From Hackney to Hampstead - and no complaints! Highly recommend”
In Business Since 2009
Free Initial Consultation
202b, Tally Ho corner, London N12 0EH
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Private Detectives Corporation

Private Detectives Corporation

(2)
“He was knowledgeable, friendly and easy to communicate with.”
Serving Harpenden Area
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Stevenage Detectives

Stevenage Detectives

“Parallels is a worldwide leader in virtualization and automation software that optimizes computing for consumers, businesses, and Cloud services providers across all major hardware, operating systems, and virtualization platforms.”
In Business Since 2009
Serving Harpenden Area
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Alpha 1 Legal Services

Alpha 1 Legal Services

(18)
Surveillance Cases
“We used Alpha 1 to trace a client who had "vanished" with a considerable debt and their services proved invaluable. Their knowledge of this industry is fantastic and service is second to none.”
Emergency Services
124 City Rd, London EC1V 2NX
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Nationwide Investigations Group

Nationwide Investigations Group

(7)
Enquiry Agent, Corporate Intelligence, Fraud Investigations
“I was unsure about using a Private Investigator do internal investigations into my stock losses, Nationwide Investigations Group not only managed to help me confirm my suspicions but they gave me a full discourse on how it was being done and what st...”
Emergency Services
100 Borough High St, London SE1 1LB
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Private Investigator

Private Investigator

(3)
Bug Sweeping Services, Person Tracing, Corporate Intelligence
“These guys really helped me with a person who stole money from me using eBay. I didn't have to pay any moneys upfront.”
In Business Since 2004
Emergency Services
49 Queen Victoria St, London EC4N 4SA
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Argo Investigations

Argo Investigations

(1)
“they have been of great help in recovering money from our creditors”
In Business Since 2017
Licensed
Emergency Services
60 St Martin's Ln, London WC2N 4JS
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Conflict International

Conflict International

(1)
“A comprehensive range of excellent services!”
In Business Since 2006
Emergency Services
180 Piccadilly, St. James's, London W1J 9HF
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The Local Detectives

The Local Detectives

(28)
  • Results
  • Money
  • Professional
“This company were excellent and carried out their services exactly to my requirements. Would highly recommend them to anyone needing this type of the service.”
30+ Years Experience
Emergency Services
3rd floor, 86-90 Paul St, London EC2A 4NE
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Tacet Global

Tacet Global

(9)
Investigation Services, Security Services, Legal and Other Services
“These guys are amazing. I used them to help me with a person who was sending non stop abusive content, and I wanted to put something together to take to the police. They also undertook a complete check on my online details, to find out what public in...”
In Business Since 2019
Emergency Services
Transparent Fees & Pricing
International House, 124 Cromwell Rd, London SW7 4ET
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Private Investigation Detectives

Private Investigation Detectives

(18)
People Tracing, Phone Data Retrieval, Corporate Investigation
“Sadly I can only rate these guys a 5 star ... best at what they do ... what he was able to find with little information I was able to give him... he solved my case in no time ... brilliant I'm a very very happy client Can't praise these guys enough ...”
25+ Years Experience
Emergency Services
Serving Harpenden Area
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Private Investigator London - Principal Investigations

Private Investigator London - Principal Investigations

(21)
  • Understanding
“Really helpful and honest Private Investigator London. I had a massive problem with online harassment and was at my wits end with it all. This agency helped me to get the evidence and proof I needed. Thank you so very much.”
Craven St, London WC2N 5NP
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Trojan Surveillance Private Investigator

Trojan Surveillance Private Investigator

(6)
Corporate Client Services, Asset Tracing, Private Client Services
“We use All Seeing Surveillance for our London office - being based in NYC it's so crucial to find a company available around the clock to work in our time zone but with a personal service based in the UK - we've worked with them six months now - Grea...”
Emergency Services
5th Floor, 167-169 Great Portland St, London W1W 5PF
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National Private Detective Force - Npdf

National Private Detective Force - Npdf

(2)
“Professional Investigator - very pleased with the results”
Emergency Services
Transparent Fees & Pricing
Free Initial Consultation
3, Bolt Court, Fleet St, London EC4A 3DQ
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National Private Investigators

National Private Investigators

(19)
“I found the service excellent and very helpful what the say they can do they d it and it is a fast and efficient service , I would recommend them highly.”
Emergency Services
71 75 Shelton St, London WC2H 9JQ
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Westminster Security

Westminster Security

(15)
Close Protection, Surveillance Services, Private Investigation
“Our house was broken into whilst we were on holiday, we found Westminster Security on Google and called them for assistance. They dealt with securing our property, the clean-up and repair, I can't thank them enough for everything they did. Great comp...”
16 Old Queen St, London SW1H 9HP
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Private Detective Redbridge

Private Detective Redbridge

(6)
Lie Detector Test For Theft In Redbridge, Corporate Lie Detector Test In Redbridge, Matrimonial Lie Detector Test In Redbridge
“Private Detective Redbridge were very efficient and helped me through a really difficult and emotional time they put me straight at ease the team were all so caring I would not hesitate to use if needed again.”
25+ Years Experience
Free Initial Consultation
Emergency Services
Transparent Fees & Pricing
160 City Road, London, GB, EC1V 2NX
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Sloane Risk Group

Sloane Risk Group

(8)
  • Professional
  • Team
“Used Sloane Risk Group recently. Excellent service and they quickly understood our requirements to tailor their service. High quality team. Would definitely recommend.”
In Business Since 2020
Emergency Services
71-75 Shelton St, London WC2H 9JQ
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1st Call Detectives

1st Call Detectives

(4)
Tracing Services, Find Missing Person, Risk Assessment
“Finally a service that provides what it offers. These guys WILL get you the results you need, they provided me more info than I asked for and did not charge me further. They believe that the service and customer satisfaction is what counts and I will...”
In Business Since 2010
Emergency Services
2 Chepstow Rd, London W2 5BH
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Valorous Group

Valorous Group

(3)
Security System Design, Surveillance Detection, Physical Protection
“Earlier this year, we had the pleasure of working in conjunction with Valorous Group on a fast paced, high profile surveillance task. Valorous Group supplied all the equipment required (top of the range), to all operatives working on the task. Th...”
Emergency Services
4th Floor, 43 Berkeley Square, London W1J 5AP
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SPS Investigations

SPS Investigations

(3)
Private Investigations in London, Surveillance, Cheating Partners
“Truly a wonderful honest company that I would recommend to anyone who isn't too sure how this industry operates. Both Patrick and Shaun were easy to work with and very professional in their manner. They dealt with the situation promptly and gave me g...”
Emergency Services
First Floor Office, 3 Hornton Pl, London W8 4LZ
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