Private Investigators London & UK | K3K Investigations
Discreet private investigators in London, operating UK-wide. Surveillance, tracing, cyber and fraud. Free confidential advice, 24 hours: 020 3343 7007.
K3K Investigations — private investigators in London, operating UK-wide and internationally. Call 020 3343 7007 (24 hours) or email [email protected]. K3K Investigations Ltd, company 14781961, ICO-registered data controller ZB535305.
What we do
K3K Investigations is a London-based private investigation agency working across the United Kingdom and internationally. We are instructed by individuals, solicitors and businesses who need a question answered with evidence rather than assumption: where someone is, what they are actually doing, who they really are, or where money has gone.
Every instruction begins with a free, confidential conversation with a senior investigator, is quoted as a fixed price before any work starts, and ends with a written report you can act on — and, where it matters, that a court will accept.
Our investigation services
Covert surveillance — trained field teams gathering timestamped, court-ready footage of what is happening, on foot and by vehicle, anywhere in the UK.
People tracing — finding missing family, debtors, beneficiaries and former tenants, with no-trace, no-fee terms on most standard traces.
Matrimonial and infidelity investigations — discreet answers for people who need to know before they decide, with evidence family solicitors can use.
Fraud investigations — evidence gathering and asset tracing for individuals and businesses who have been defrauded.
Corporate investigations and due diligence — executive vetting, counterparty evaluation, internal fraud and corporate intelligence for UK businesses.
Workplace investigations — independent, tribunal-ready evidence on sickness-absence abuse, moonlighting, theft and misconduct.
Cyber investigations — online fraud, harassment, impersonation and digital evidence recovery.
Vehicle tracking — lawfully deployed GPS tracking, run on our own K3K Intelligence platform.
Bespoke investigations and bug sweeping (TSCM) — technical surveillance countermeasures, asset tracing and complex cases that do not fit a category.
How we work
Understand. We take the time to understand your situation, your concerns and exactly what is at stake.
Advise. We advise on the most effective lawful course of action — and tell you honestly what evidence can realistically be obtained. If the answer is that you do not need an investigator, we say so.
Solve. Our specialists deploy the right people and technology to gather facts with precision and discretion.
Report. You receive a clear, comprehensive written report — evidence you can act on with confidence.
Why clients instruct K3K
Senior investigators on every case, not subcontractors. Our own in-house intelligence platform rather than rented tooling. Fixed quotes agreed before work begins. A 24-hour line answered by someone who can actually advise you. And lawful method throughout — K3K Investigations Ltd is an ICO-registered data controller (ZB535305) and documents the lawful basis for every instruction.
Speak to an investigator
Free, confidential, no obligation. Call 020 3343 7007 — 24 hours — or book a call online. Read our investigation guides, anonymised case stories, or the areas we cover.