UK Private Investigators

Detective agency without over 200 years of combined investigations expertise

iSpy Detectives offer professional private investigator services all over the UK with a 98.6% success case rate. We are one of the UK’s leading private detective agencies. Our team are experienced, discreet and get results you need.

Our hand-picked team is made up of former police officers, cyber experts, military, and business professionals with over 200 years of combined expertise. We are fully-versed in personal and business investigations. iSpy offers a comprehensive range of services including.

People Tracing & Background Checks

• Missing Persons Location
• Relative & Family Reconnection
• Beneficiary Tracing for Wills & Probate
• Debtor Tracing
• International People Tracing
• Birth Parent & Biological Family Finding
• Background Checking
• Address Tracking
• Telephone Number Tracing
• Land Owner Identification

Surveillance & Monitoring

• Covert & Undercover Surveillance
• GPS Vehicle Tracking
• Infidelity & Affair Investigations
• Mystery Shopper Investigations
• Evidence Gathering for Legal Proceedings
• Vehicle Recovery & Stolen Property Location

Corporate & Business Investigations

• Corporate Due Diligence
• Breach of Non-Compete & Restrictive Covenant Investigations
• Employee Misconduct & Theft Investigations
• Business Partner Investigations
• Financial Investigations
• Brand Protection Investigation
• Corporate Espionage Detection

Fraud & Cybercrime Investigations

• Fraud Investigation (Benefits, Insurance, Pension Scams)
• Identity Theft Investigations
• Cybercrime Detection & Prevention (Pen Testing, Ethical Hacking)
• Computer Forensics & Security Testing
• Cryptocurrency Theft Investigation
• Phone & Computer Hacking Investigations

Technical Investigation Services

• Bug Sweeping (Homes, Offices, Vehicles)
• Covert CCTV Installation
• Lie Detector Testing (Polygraph Examination)
• Security Penetration Testing

Legal Support Services

• Process Serving (Divorce Papers, Writs, Notices)
• Court Order Service
• Court Hearing Documentation
• Witness Interviews & Statements
• Evidence Gathering for Litigation

Personal & Family Matters

• Child Custody Investigations
• Child Support Enforcement
• Family Law Investigations
• Dating Profile & Catfishing Investigations
• Stalking & Harassment Investigations
• False Allegations Investigation
• Neighbour Dispute Investigations

Specialised Investigations

• Coercive Behaviour & Psychological Abuse Documentation
• Cult Infiltration & Investigations
• Caregiver & Domestic Staff Investigations
• Grooming Investigations
• Fly-Tipping Investigation
• Close Protection Services

iSpy Detectives has been serving clients throughout the UK for years and now possess a team of highly skilled investigators who can tackle an array of investigation needs. Our detectives are operating daily in London, Manchester, Birmingham, Glasgow, Leeds, Edinburgh, Bournemouth, Liverpool, Bristol, Sheffield, Cambridge, and more.

Contact iSpy Detectives for your private investigation needs on 0800 002 9153.

iSpy Detectives are a fully legally compliant Investigations and Tracing Agency that has been featured in the press worldwide, including The NewYork Post, Huffington Post, The Sun, Metro, Yahoo Life, The Mirror, England Times, Lad Bible, Unilad, Express, Bristol Post, and Wales Online.

Unfaithful Partners

If you suspect your partner is cheating, then I-Spy Detective Agency will conduct an investigate to provide you with conclusive proof. If your partner has given you even just a slight reason to suspect them of unfaithful behaviour, I-Spy Detective Agency are here to help you obtain peace of mind – by either clarifying your suspicions or putting your mind to rest. Our definition of a successful assignment is that you, our client, are in possession of all the facts, whatever they may be.

Surveillance Services

Surveillance plays a huge part in all of our operations. The reason for this is because manned surveillance will give you the factual evidence you need to get the results you require.

We have clients contacting us daily for:

Surveillance for Personal Reasons

1. Suspected Infidelity – Confirming or disproving suspicions of a cheating partner.
2. Child Custody Disputes – Gathering evidence of a parent’s behaviour for family court.
3. Teenager Monitoring – Ensuring teens are safe and not involved in risky behaviour.
4. Elderly Care Monitoring – Checking that caregivers are treating elderly family members properly.
5. Missing Persons – Tracking down runaway teens or missing family members.
6. Stalking or Harassment – Gathering evidence against a stalker or harasser.
7. Neighbour Disputes – Documenting noise complaints, boundary issues, or harassment.
8. Home Security – Monitoring home perimeters and access points.
9. Nanny Surveillance – Ensuring children are being cared for properly when parents are away.
10. Property Vandalism or Theft – Identifying perpetrators damaging or stealing from personal property.

Surveillance for Business & Corporate Reasons

11. Employee Theft – Catching internal theft or fraud.
12. Workplace Misconduct – Documenting harassment, inappropriate behaviour, or violations of company policy.
13. Time Theft / Productivity – Monitoring employees suspected of time fraud or misusing work hours.
14. Unauthorised Access – Identifying individuals entering restricted areas.
15. Insurance Fraud – Investigating questionable workers’ comp or liability claims.
16. Corporate Espionage – Preventing or proving theft of intellectual property or trade secrets.
17. Vehicle Fleet Monitoring – Tracking company vehicles to ensure proper use and routing.
18. Inventory Loss – Pinpointing sources of product or equipment loss.
19. Compliance Monitoring – Ensuring staff adhere to industry regulations and safety practices.
20. Background Verification – Covertly observing candidates or new hires in high-trust roles.
21. Brand Protection – Identifying counterfeit operations or unauthorised brand usage.
22. Customer Behaviour Tracking – Observing how customers move through retail environments.
23. Access Control Verification – Ensuring only authorised individuals enter secure areas.

Surveillance for Legal & Investigative Reasons

24. Litigation Support – Gathering evidence to support or refute legal claims.
25. Fraud Investigations – Detecting insurance, identity, or financial fraud.
26. Process Serving – Locating hard-to-find individuals for legal service.
27. Background Checks – Covertly verifying someone’s lifestyle or activities.
28. Harassment or Discrimination Claims – Validating workplace allegations.
29. Contract Disputes – Documenting breaches of agreement.
30. Patent or Copyright Infringement – Tracking illegal use or reproduction of protected works.
31. Hidden Asset Discovery – Observing someone suspected of concealing wealth.
32. Restraining Order Enforcement – Monitoring an individual under a legal protection order.

Surveillance for Security & Crime Prevention

33. Preventing Break-ins – Deterrence and identification of burglars.
34. Suspicious Activity Monitoring – Watching individuals or groups acting unusually.
35. Drug Activity Surveillance – Identifying illegal transactions or activity.
36. Gang or Organised Crime Monitoring – Gathering intelligence on criminal groups.
37. Public Safety Monitoring – Observing large events or high-risk areas.
38. Anti-Terrorism Efforts – Supporting intelligence gathering for threats.
39. Human Trafficking Investigations – Locating and documenting trafficking networks.
40. Vandalism and Graffiti Prevention – Catching culprits in high-risk zones.
41. Trespassing Documentation – Proving repeated unauthorised entries.
42. Illegal Dumping or Environmental Violations – Monitoring remote sites for illegal activities.

Surveillance for Real Estate & Property Management

43. Tenant Monitoring – Observing tenants suspected of lease violations.
44. Squatter Issues – Confirming and documenting unauthorised occupancy.
45. Construction Site Security – Preventing theft or sabotage.
46. Vacant Property Surveillance – Keeping watch over empty or foreclosed properties.

Surveillance for Event & Venue Monitoring

47. Crowd Control – Observing behaviour at public or private events.
48. VIP Protection – Monitoring surroundings for threats.
49. Theft Prevention at Events – Keeping an eye on high-value areas.
50. Staff Conduct Oversight – Ensuring event staff behave professionally.

Surveillance for Technology & Remote Monitoring

51. Smart Surveillance Systems – Integrating cameras and AI for 24/7 monitoring.
52. Drone Surveillance – Aerial monitoring of large areas or inaccessible terrain.
53. GPS Tracking – Monitoring location of vehicles or individuals.
54. Cybersecurity Incident Investigation – Complementing digital forensics with physical monitoring.

We have a vast wealth of knowledge and experience in combining our highly popular vehicle tracking with manned surveillance to cost effectively monitor the movement of any subject across the country twenty-four hours a day seven days a week! We also have a vast range of specialist surveillance equipment at our disposal. we are on the very cutting edge of the latest technological developments within the industry.

Our equipment includes highly modified surveillance vehicles, specialised static surveillance vehicles, button cams, bag cams, body cams and other extremely covert devices.

We offer the following with our surveillance packages:

• Physical manned surveillance by highly trained and experienced agents
• Vehicle tracking (optional but highly recommended in all operations that use vehicles)
• Fully equipped surveillance vehicle
• Static surveillance setups (most commonly known as vehicle observation posts)
• High definition photographic stills compiled into every detailed report we issue at the end of each day of surveillance
• Professionally edited video / DVD footage, if required.

Interested? If so please call your local office today or get in touch via our contact page. All consultations and estimates are free and treated with discretion. There is no obligation to proceed.

Vehicle Tracking

Our vehicle tracking package provides the best and most cost effective way of monitoring a subject’s whereabouts and movements twenty-four hours a day, seven days a week. Vehicle tracking allows you to discreetly monitor the location of vehicles and individuals from the luxury of your own home. Due to our advanced operating GPS tracking systems you, the client can observe and monitor the subject from your home computer, laptop, smartphone or tablet device.

The vehicle tracking devices themselves are incredibly small and discrete meaning they can be concealed in small spaces. The tracking device can be fitted and removed in seconds, there will be no modification required, no damage to the vehicle and the device will never fall without being removed from the vehicle by one of our highly skilled agents.

 You can arrange to have the device fitted at a time and location that suits you, all our agents have experience fitting and removing vehicle tracking systems from a multitude of makes and models of vehicles so we will always know the best location to prevent the device being discovered. Our GPS vehicle tracking is highly recommended with all surveillance packages we supply. You will also benefit from huge reductions in manual surveillance costs with the use of our tracking systems. During the vehicle tracking package, you can use your login identity code to access the tracker online and view the following detailed information:

• Current location of the tracker/ subject’s vehicle
• Speed and direction of movement of the subject’s vehicle
• Full history of movements of the vehicle
• You can log into our system to view the tracker’s location, history and reports in real time at any time.

 All vehicle tracking packages include fitting and removal of the GPS tracking system from all vehicles. 

Benefits of using a vehicle tracking service:

• Provides continuous Tracking 24 hours a day, 7 days a week
• Daily Updates, detailed reports containing exact location and addresses
• Covert installation and removal of device included in price
• Fitted in a matter of seconds
• Incredibly accurate, providing street names and house numbers
• Discrete device
• Most cost effective method of tracking the subject’s movements
• Helps analyse best times for manned surveillance 

Interested?If so, please call your local office today or get in touch via our contact page. All consultations and estimates are free and treated with discretion. There is no obligation to proceed.

UK Private Investigator Costs

You may be wondering whether it’s worth the expense to hire a private investigator in the UK. Private investigation work isn’t an unskilled or unqualified task; we employ professional, highly experienced and trained operatives to ensure a discreet service and the most robust evidence gathering and report writing for our clients across Britain.

Many private investigations go awry when clients attempt to undertake these independently or engage cheap, less experienced or unethical agencies to carry out this work. Surveillance or vehicle tracking undertaken by an untrained person and subsequently exposed or discovered by the subject will completely invalidate any evidence obtained and eliminate future opportunities to gather more, rendering any issue or challenge unresolvable.

The full cost of the work i-Spy Detectives undertakes for you will depend upon the specifics of your situation and services required, but a rough guide to our costs is provided below to assist in your decision.

People tracing services from £99 to £489. Surveillance ranging from £389 to £780. GPS tracking devices from £99 to £988. Lie detector testing from £450 per test. Corporate investigations starting from £740. Bug sweeping services starting from £998.

About I-SPY Private Detective Agency

The investigative organisation I-SPY Private Detective Agency serves the entire UK as a reliable provider of private investigative services. Our company, established years ago, specifically provides discreet, professional and reliable private investigator services throughout Britain.

Our position as the UK’s leading private detective agency motivates us to combine conclusive services with complete security measures, as we value absolute confidentiality. For anyone requiring private investigation services across the UK, the trusted choice should be I-SPY.

Why Choose i-Spy Detectives Private Investigators UK?

When you contact our UK private investigators, you can be assured of a non-judgemental and respectful response, with our absolute guarantee of full confidentiality and discretion. We will listen to you to fully understand your difficulty or dilemma, then talk you through the solutions we can provide, ensuring you know exactly what work we can undertake, what you will receive, and how much it will cost to best and most effectively achieve your aim.

Throughout any investigation undertaken for you, you will receive regular updates so that you know what’s happening and have the reassurance that the work we’re doing is being carried out in a thorough, proactive and competent manner. At the conclusion of any investigation we undertake for you, we will provide a comprehensive professional report including photographic evidence, ensuring you have all the documentation and concrete proof you need.

The key reasons to choose I-SPY Private Detective Agency for your investigative requirements are:

Expertise and Experience

With numerous years of expertise, our UK private investigator agency brings seasoned professionals who specialise in various investigative matters.

Comprehensive Investigation Services Across the UK

Our nationwide operation runs a comprehensive range of investigation services extending from surveillance and background checks to fraud investigations and asset tracing operations.

Discreet and Confidential

Detective services provided by I-SPY throughout the UK maintain absolute confidentiality, allowing for both precise investigative work and operational secrecy with privacy protection.

Use I-SPY services for UK-based investigations to receive professional and reliable solutions for your needs.

Final Summary Report with State-of-the-Art Technology

Our UK-based private detectives deliver a complete final summary report containing clear, precise and actionable findings after your investigation has concluded. Our nationwide surveillance experts utilise state-of-the-art technology to obtain accurate data through advanced tracking tools and digital forensics to support their findings.

Our advanced technologies allow both clients seeking UK-based private investigative services and those handling extended cases across Britain to receive precise, data-based choices.

No Hidden Charges

Transparency is essential to our way of working at our agency. Our UK private investigator services come with zero hidden charges. All aspects of the case are handled professionally by our private detectives throughout the UK, with no hidden fees. We will deliver outstanding service and complete transparency.

Our Commitment to Excellence

We have the capacity, knowledge and resources to ensure that all of our private investigation work is fully compliant and undertaken in a lawful and ethical manner. Most importantly, we achieve the results you need.

At our UK PI agency, we employ a large and dedicated team and background check all agents. All of our private detectives, both male and female, are fully trained and sourced from government, military or police backgrounds, possessing the expertise to guarantee that you receive competent and effective service. They are tenacious, creative and highly skilled.

We work with both private and commercial clients to provide the highest quality private investigator services, ensuring the most robust and irrefutable evidence for you.

At i-Spy Detectives, we recognise the significance of our outcomes, and you can have complete confidence that we will always go the extra mile to provide a bespoke and individualised service to obtain everything you need.

If you require a private investigator in the UK, contact us now to discover how we can provide the most effective solution to your needs. We can start most investigations immediately and ensure the swiftest results. We guarantee the strictest confidence and confidentiality for all enquiries and investigations undertaken by us.

Get in touch

If so, please call your local office today or get in touch via our contact page. All consultations and estimates are free and treated with discretion. There is no obligation to proceed.

Private Investigator FAQ for i-Spy Detectives UK

Is hiring private investigators in the UK legal?

It’s completely legal to hire private investigators throughout the UK, provided it’s with a professional and regulated private investigators’ agency like i-Spy Detectives. It’s extremely important for clients wishing to hire private investigators to stay within the confines of the law.

What is a private detective agency allowed to do?

We at i-Spy Detectives are a professional private investigator firm that works only within the parameters of the law. While there are some grey areas, we would never step over the line that would place our clients or ourselves in legal strife.

A private investigator can trace someone, use GPS tracking, run background checks, use social media and access public databases and open sources, all within the law. We have access to software and data sources that the general public do not. We also have an extensive network of investigators who have assets and information sources that they can call upon to gain the desired result.

When should I hire a private investigator?

The best time to hire a private investigator is when you have exhausted all options that are available to you, or when you have realised that it would be better to hire people with specialist skills to get the job done quicker.

For example, tracing people or locating assets can be done by everybody, but the process is very time-consuming if you do not know where to look, or if you do not have the tools to do it effectively. You may also miss valuable information or clues along the way.

With projects that require surveillance, this can be quite dangerous if you are placing yourself in a tough positions with unsavoury people. Our surveillance investigations team know how to keep a low profile, how to get the desired results, and how to maintain a distance that will not compromise the operation.

How much does a private investigator cost in the UK?

The type of investigator you hire and the type of project will affect the cost of our investigation services. The cost of a private detective depends on how long you want the investigation to last and what your specific needs are. You can get in touch with us for a detailed pricing based on your specific requirements.

How discreet are private investigators?

All of our private investigators are trained professionals with many years of experience. We understand that issues of a sensitive nature are frequently involved, and that is why we follow strict guidelines when it comes to be discreet. We never compromise the identity or integrity of our clients.

Do you investigate abroad?

We have overseas personnel who can take up international investigations projects. Each day, companies and individuals come to us for corporate investigations, surveillance, people tracing, bug sweeps, and lie detector testing in across Europe, Africa, North America, Asia, Oceana, and the Middle East.

Do you offer bug sweeping throughout the UK?

Absolutely. Our detectives have substantial experience working with corporate clients and high-net-worth individuals to bug sweep homes, offices, cars and hotel rooms across the globe. We are also seeing a growing number of requests for bug sweeps in rental properties, like Airbnb. There are some unscrupulous owners who have been caught spying on those renting their property.

I think I’m being followed. Do you provide counter surveillance?

Yes, we offer counter surveillance for our clients. Our anti-surveillance team has recently conducted operations across the UK for senior politicians, celebrities, high-net-worth individuals and people who think they’re being stalked. Our ex-army professionals are trained in counter-surveillance so that our customers feel safe and secure.