UK Private Investigators

Professional Detective Agency with a 98.7% Success Rate

Whether you need 24-hour surveillance, an asset trace, to locate a person, an office bug sweep, a legal paper serve, or a fraud investigation, UK Private Investigators have the expertise to deliver the results you require. 

Our detectives are discreet, have a proven track record, and operate 24/7 globally. 

Providing speedy and professional document service nationwide

Discreet and dependable investigations professionals

We have a global network of private detectives across 80 countries

UKPI Detective Agency is one of the leading professional investigator firms in the UK.

Why choose UKPI Detectives?

UKPI are an experienced and reliable detective agency specialising in Private InvestigationsProcess Serving, Asset and People Tracing, Corporate Investigations, Bug Sweeps, and undertaking Lie Detector (Polygraph) testing.

Our five decades of in-house expertise enable us to handle instructions effectively, anticipate issues, and deliver consistent results. Our team is made up of ex-military, ex-police force, cyber security experts, and tracing professionals. 

Whether you are a private individual requiring a sensitive cheating partner investigation, law firm requiring legal documents to be served, or a business with a fraud issue, we have the team to deliver the results you require.

Over 50 Years of Investigstions Expertise

Using over 30+ years of investigations expertise, our detectives work closely with our clients to ensure we deliver rapid results, in a discreet and professional manner.  

company established
2026
Instructions To Date
1000
Corporate Invetigations
+

Our Investigation Services

When the Truth Matters, Trust UKPI.

Some questions can’t be answered with a Google search. When you need real answers — about a person, a business, a threat, or a betrayal — you need investigators who know how to find them.

UKPI brings together former police officers, military intelligence specialists, and forensic financial experts under one roof. We’ve traced hidden assets across three continents, uncovered corporate fraud before it cost millions, and delivered evidence that’s stood up in courtrooms across the country. Our investigators don’t guess. They dig, they verify, and they deliver.

UKPI professional uk investigation services

Our services include Private Investigations, People Tracing, Asset Tracing, Process Serving, Fraud Investigations, Benefits Cheat Investigations, Debtor Tracing, Care House Investigations, Cheating Partner Investigations, Child Welfare Investigations, Neighbour Dispute Investigations, and Landlord Investigations. 

We also have a team of detectives that focus solely on Corporate Investigations. Our team has a depth of expertise in Covert Surveillance, Director Tracing, Brand Protection, Office Bug Sweeps, Counter Intelligence, Employee Investigations, Background Checks, Pre-Merger Due Diligence, Evidence Gathering, Hidden Asset Tracing and Pre-Litigation Investigations.

No case is too complex. No trail too cold. Whether you’re a solicitor building a case, a business protecting its interests, or an individual seeking answers, we bring the same relentless rigour to every investigation we take on.

This is what real investigative expertise looks like.

Confidential and reliable investigation services throughout the UK

Private Investigation

Legal documents serving throughout the UK

Process Serving

Trace People or Hidden Assets anywhere in the world.

Tracing Services

Find listening devices & hidden cameras in your home, office, hotel or vehicle.

Bug Sweeping

Protecting your business through discreet, intelligence-led corporate investigations.

Corporate Investigations

Uncover the truth and ensure clear, honest answers

Polygraph Testing

UKPI Press Coverage

Our investigators have been featured in the global press

Our professional investigators are amongst some of the most experienced detectives in the world. That is why they are often contact for expert opinions by leading international press titles, including The Sun, MSN news, Daily Express, The Mirror, Huffington Post, Liverpool Echo, Bristol Post, Glasgow Live, A1.ro, Maariv, Kent Live, Essex Live, and Peroz.ro.

UK Private Investigators has been feature in the Sun
UK Private Investigators has been feature in MSN news and lifestyle
UK Private Investigators has been feature in the Daily Express
UK Private Investigators has been feature in the Daily Mirror
UK Private Investigators has been feature in the Huffington Post
UK Private Investigators operates in the UK and abroad. We take on international investigations.

Our Global Coverage

We're a UK-based investigations agency with a international reach

With offices in London, Manchester, Birmingham, Glasgow, Liverpool, Leeds, Edinburgh, Bristol, Cardiff, Belfast, Sheffield, Bournemouth and Newcastle, UKPI delivers boots-on-the-ground investigative capability across every corner of the country. This isn’t a network of subcontractors — it’s our own team, embedded in the communities they operate in and ready to respond fast, wherever your case takes us.

And when an investigation crosses borders, our reach doesn’t stop at the coastline. Through an established network of trusted international partners, we conduct investigations across Europe, North America, and beyond, giving clients the same rigour and reliability whether the trail leads to Leeds or Los Angeles.

News & Advice

Our recent private investigations

Recent Investigations

Our detectives help our clients in many ways. Here is a selection of some of our most recent projects.

Tracing a Lost Daughter

A mother from Leeds hadn’t heard from her daughter in over a decade after a family estrangement. Our tracing team located her living in Perth, Australia, now married with two children. A cautious, mediated reunion followed.

Partner Background Check

A man wanted to confirm his fiancée’s background ahead of their wedding and a planned business investment together. We found no red flags, and her financial and employment history matched exactly what she’d disclosed. He proceeded with confidence.

Finding a Cowboy Builder

A couple’s extension was left half-finished after their contractor vanished mid-project. Our investigators identified his new company registration and current work address in Birmingham. This was passed to their solicitor for formal recovery action.

Cheating Partner Surveillance

A wife suspected her husband was having an affair during frequent “business trips” to Manchester. Discreet surveillance confirmed he was meeting someone at a hotel each visit. She used the evidence in subsequent divorce proceedings.

Care Home Investigation

A family suspected their grandmother’s belongings and cash were going missing from her room. Discreet investigation identified a pattern linked to a particular carer’s shift rota. The matter was referred to management and local authorities.

Locating Company Assets 

Following a contentious shareholder dispute, one party suspected company funds had been diverted overseas. We traced a portion of the funds to an offshore account linked to a shell company. This evidence supported subsequent legal action.

Hire a UKPI investigator

Whether you know what type of investigations assistance you require, or you are looking for some advice, our detectives can help. Simply enter your details below or give us a call and we will provide you with the most suitable course of action. Our team operates in a discreet manner, so we can call you at an exact day or time, should your situation be sensitive in nature.