
I-Spy Detectives – The Leading Private Investigators in Cardiff
With a 99.3% success rate, I-Spy Detectives is Cardiff’s number one choice for professional and discreet private investigator in Cardiff. Whether you need covert surveillance, people tracing, cheating partner investigations, corporate fraud detection, process serving, or advanced bug sweeping (TSCM), our expert team is here to deliver results quickly and efficiently.

Why Choose I-Spy Detectives in Cardiff?

✔ Proven Expertise
Our investigators come from highly specialized backgrounds, including ex-military, ex-police, and cybercrime investigation experts. This diverse skill set ensures unparalleled precision and effectiveness in every case we handle.
✔ Cutting-Edge Technology
We use state-of-the-art surveillance equipment, GPS tracking, and digital forensic tools to uncover the truth and provide irrefutable evidence.
✔ Trusted & Discreet Service
At I-Spy Detectives, we understand the sensitive nature of private investigations. We guarantee absolute confidentiality and professionalism, ensuring our clients’ privacy is protected at all times.
✔ Unmatched Success Rate
With a 99.3% success rate, we outperform the competition and ensure that our clients receive the answers they need.
Our Professional Investigation Services in Cardiff
We offer a comprehensive range of investigative services, including:
🔍 Covert Surveillance – We specialize in discreetly monitoring individuals and locations, providing clear photographic and video evidence for personal and legal cases.
📍 People Tracing – Need to find someone? Whether it’s a missing person, long-lost relative, runaway debtor, or witness, our expert tracing service can track them down anywhere in the UK and beyond.
💔 Cheating Partner Investigations – If you suspect infidelity, our highly trained surveillance experts can provide definitive proof to help you make informed decisions.
🏢 Corporate Investigations – Protect your business from fraud, theft, misconduct, and internal security breaches with our specialized corporate investigation services.
📑 Background Checks – We conduct comprehensive background investigations for businesses and individuals, ensuring trust and safety in personal and professional relationships.
⚖ Process Serving – We offer fast, reliable, and legally compliant process serving in Cardiff, ensuring court documents are delivered correctly and on time.
🎙 Lie Detector Testing (Polygraph) – Our certified polygraph experts conduct professional lie detector tests for personal and legal matters.
🔧 Bug Sweeping (TSCM) – Protect your home, office, or vehicle from unwanted surveillance and electronic eavesdropping with our advanced counter-surveillance technology.
Case Studies – Real Results from I-Spy Detectives in Cardiff
At I-Spy Detectives, we pride ourselves on delivering proven results with discretion and professionalism. Here are four real-life case studies that showcase our expertise across different investigative services.
📌 Case Study 1: Catching a Cheating Partner
Client: Sarah, Cardiff
Case: Suspected infidelity
Solution: Covert surveillance and digital forensics
Outcome: Sarah suspected her husband of cheating but had no concrete proof. Our team conducted discreet surveillance, tracking his movements and providing video evidence of multiple secret meetings. Through phone data analysis, we uncovered hidden messages confirming infidelity. With our evidence, Sarah was able to successfully proceed with her divorce, protecting her financial assets and emotional well-being.
📌 Case Study 2: Finding a Long-Lost Family Member
Client: David, Swansea
Case: Missing relative search
Solution: Advanced people tracing and database tracking
Outcome: David had lost contact with his brother over 15 years ago and wanted to reconnect. Using our specialist tracing tools and extensive network, we located his brother in just 10 days. After verifying identity and confirming mutual interest, we facilitated a reunion. David and his brother are now in regular contact, proving that our tracing services help bring families back together.
📌 Case Study 3: Exposing Employee Fraud in a Business
Client: Large Cardiff-based company
Case: Internal fraud and theft
Solution: Corporate surveillance, undercover investigation, and digital forensics
Outcome: A company suspected a senior employee of embezzlement and leaking sensitive business information. Our team conducted covert workplace surveillance, gathered financial transaction records, and deployed undercover investigators within the company. Within three weeks, we provided irrefutable evidence of financial misconduct, leading to a successful legal case and full recovery of stolen assets.
📌 Case Study 4: Bug Sweep for a High-Profile Client
Client: Prominent Cardiff entrepreneur
Case: Suspected illegal surveillance
Solution: Technical Surveillance Countermeasures (Bug Sweeping – TSCM)
Outcome: A high-profile entrepreneur feared their business and home were being monitored. Using specialist bug detection equipment, we conducted a thorough electronic sweep and uncovered multiple hidden listening devices planted in their office. Our expert team removed the threats, traced the source, and assisted the client in taking legal action against the culprits.
📌 Case Study 5: Locating a Missing Tenant in Cardiff
A landlord in Cardiff contacted us after a tenant abruptly stopped paying rent and left the property without any notice. Using our tracing expertise, we reviewed rental agreements, examined previous addresses, and spoke with known associates. Within days, we tracked the individual to a new flat in the Canton area of Cardiff. We supplied the landlord with a verified address and contact details, allowing them to recover unpaid rent through the appropriate legal channels.
📌 Case Study 6: Corporate Investigation for a Cardiff-Based Business
Cardiff-based IT company suspected an employee of leaking confidential project details to a competitor. We conducted covert surveillance and digital forensics, focusing on activity at the company’s office in Cardiff Bay. By analyzing email trails, phone logs, and after-hours office visits, we confirmed the employee’s involvement in the data breach. Our detailed report provided the business with the evidence needed to take decisive legal action and protect their intellectual property.
📌 Case Study 7: Bug Sweeping for a Cardiff Law Firm
A prominent Cardiff law firm, headquartered in the city centre, became concerned that sensitive client discussions were being leaked. Our technical surveillance team conducted a thorough bug sweep of their boardrooms and private offices. In a meeting room, we discovered a concealed recording device linked to an external receiver. Once we removed the device and secured the premises, the law firm resumed operations confidently, knowing their confidential conversations were protected.
📌 Case Study 8: Infidelity Investigation in Roath
A client living in Roath suspected their partner of having an affair. Our surveillance team discreetly monitored the partner’s movements over a three-week period, focusing on evenings and weekends. We identified a pattern of unexplained visits to a property in Pontcanna. The evidence we gathered—photos, timestamps, and video footage—confirmed the client’s suspicions, giving them the clarity needed to make informed decisions about their relationship.
📌 Case Study 9: Background Check for a Cardiff Bay Property Manager
A property management company in Cardiff Bay needed a thorough background check on a prospective tenant for a high-end apartment. We conducted a deep dive into the applicant’s rental history, credit records, and previous addresses within Cardiff and the surrounding area. Our findings revealed inconsistencies in the applicant’s financial information and a history of unpaid rent at a nearby Grangetown property. The property manager was grateful for the information, which helped them make a more informed decision.
📌 Case Study 10: Tracing a Long-Lost Relative in Llandaff
Cardiff resident in Llandaff reached out to us to locate a long-lost sibling who had not been in contact for over a decade. Using the limited information provided—an old Llandaff North address and a previous job—our team conducted a detailed search through local records and online databases. Within a few weeks, we found the sibling living just a few streets away in Whitchurch. The family was able to reconnect and rebuild their relationship.
📌 Case Study 11: Stolen Equipment Recovery for a Cardiff Construction Firm
A construction company based near Leckwith Stadium experienced multiple thefts of valuable equipment from their site. They hired us to investigate, and we conducted surveillance on the site and its surrounding areas. Our team identified suspicious activity in a nearby Splott warehouse, where the stolen equipment was being stored. With this evidence, law enforcement recovered the stolen goods, and the client implemented additional security measures to prevent future incidents.
📌 Case Study 12: Process Serving for a Cardiff Business Owner
A small business owner in Cathays needed to serve legal documents to a former employee who had moved around Cardiff frequently. Our process serving team quickly verified the individual’s current residence in the Adamsdown area and ensured the documents were delivered in compliance with legal standards. The timely service allowed the client’s case to proceed without delay.
📌 Case Study 13: Matrimonial Surveillance in Pontprennau
A client from Pontprennau suspected their spouse was meeting someone in secret during lunch breaks in Cardiff city centre. Our investigators conducted discreet surveillance over a two-week period and observed regular meetings at a café in St. Mary Street. The evidence we provided helped the client confirm their suspicions and approach their partner with the truth.
What Our Clients Say
“I-Spy Detectives handled my case with absolute discretion and efficiency. Their professionalism and expertise gave me the evidence I needed!” – Sarah L., Cardiff
“Thanks to I-Spy Detectives, I was able to track down a long-lost relative. Their people tracing service is second to none!” – Mark D., Cardiff
Final Summary Report with State-of-the-Art Technology
At the end of every operation, our local private investigators in Cardiff compile a detailed report that includes high-quality graphics, high-definition images, and clear video footage.
We use state-of-the-art technology, including the latest software and hardware, to ensure professional results. All reports are electronically delivered within 48 hours of the operation’s completion.
Upon request, hard copies can also be provided. All materials, including photos and videos, are time- and date-stamped, making them admissible as evidence in court if required.
No Hidden Charges
We have a straightforward pricing structure that is clearly communicated to clients from the start. There are no hidden charges or unexpected costs as the investigation progresses.
The price we quote is the price you pay. As a renowned private investigator firm in Cardiff, our operations may require travel, but clients are not charged extra for travel expenses.
Locations Across the UK
Our clients are our priority, which often means following leads across different regions. Investigations may extend beyond Cardiff to other parts of the UK or even internationally if needed.
With multiple offices across the UK, we can handle leads wherever they take us. Our professional networks and collaborative efforts allow us to solve cases efficiently, even on a global scale, to deliver the results our clients need.
Contact I-Spy Detectives Today
If you’re looking for Cardiff’s most trusted private detective agency, I-Spy Detectives is here to help. Our discreet and professional investigators are ready to take on your case with precision, efficiency, and confidentiality.
📞 Call us now for a free consultation
📧 Email us today for expert advice
Let I-Spy Detectives uncover the truth for you!