Private Investigators Southampton

Private Investigator in Southampton for Businesses and Individuals

Private Investigator Southampton

NPI are Private Investigators in Southampton with national reach. We are the go-to agency for individuals and businesses who have reason to suspect their personal or professional interests are at risk. Our team of investigators is large and diverse and includes many with specialist military and police training, as well as those with extensive training and experience in the deployment of high-tech investigative tools.


We are committed to a single outcome: the truth. We do not judge our clients, take sides or draw conclusions. Instead, we assess your situation, determine what methods are required to obtain the truth and then present the results to you in a straightforward, easy to understand final report. Regardless of the nature of your concerns or the players involved you can be certain we will provide you with competent and effective services.

Truth & Discretion Guaranteed

Our NPI guarantee ensures thorough private investigations, accurate results & absolute discretion.

Private Investigator Services

Private Surveillance Reviews

Luke Annan
Luke Annan
I couldn’t be happier with the service with NPI. Very professional and everything was explained really clearly. Great work! Would highly recommend!
josh large
josh large
Fantastic !!! The work done by NPI was quick and the response and results and were hassle free. I got the results I needed and I was grateful of the judgment free professionalism they provided. Would recommend to anyone.
Ash Chap
Ash Chap
Very insightful, professional and knowledgeable - thank you so much.
Breaking Mad UK
Breaking Mad UK
Very Helpful! Awesome Stuff thanks!
Renna Ren
Renna Ren
Very professional. Great service! Thank you for the efficient and speedy service.
dylan hibbert
dylan hibbert
Essential Company when seeking due diligence on a recent merger.
Dorian Szymanski
Dorian Szymanski
Thanks so much for the help, great service
Becky Hilditch
Becky Hilditch
The person I spoke with was very helpful, friendly and professional. Highly reccomend using this very approachable judgement free company.
Kimberley Hatfield
Kimberley Hatfield
Brilliant service, thank you for all your help and assistance. Would definitely recommend!
Philip Kendall
Philip Kendall
National Private Investigators service was brilliant. Resolved my issue very quickly.
I'm very happy with the work provided from National Private Investigators. I would highly recommend their service. Thank you!
David G
London UK
Excellent service throughout, we were kept up to date on the investigation every step of the way. We couldn't have asked for more.
Lucy E
Cambridge UK
Amazing result! As a business, we've worked with a few companies over in the years, and NPI get the job done. Highly recommended!
Johnathan M
Greater London UK

Don't Let Your Suspicions Go Unanswered Any Longer.

Tailored Investigative Services That Get Results

We understand that no two situations are exactly alike. Therefore we tailor our service to meet each client’s specific needs. Whatever the methodology employed you can be sure we prioritize discretion and adhere to strict legal and ethical guidelines.

Why Hire a Private Detective in Southampton?

If any of the following circumstances apply to you it may be time to enlist the services of a Private Investigator in Southampton:


  • You believe a staff member is stealing product or money.
  • You suspect your significant other is carrying on an affair.
  • You are in the midst of a combative divorce and suspect your spouse is hiding assets.
  • You suspect outsiders are actively attempting to steal trade secrets.
  • You believe someone has bugged your home or office or installed cameras.
  • A loved one has begun acting erratically or has suddenly vanished.
  • Someone has filed what you believe is a bogus injury lawsuit against you.
  • You need to vet a potential hire for an important position.


If your situation is not on the list contact us anyway. Chances are we can help.

Our Services

  • Private Investigations
  • Corporate Investigations
  • Insurance Investigations
  • Fraud Investigations
  • Background Checks
  • GPS Vehicle Tracking
  • Missing persons cases
  • Tracing Agents
  • Bug Sweeping
  • Lie Detector Tests

Working With NPI: A Short Primer


If you have reason to suspect your partner, business associate, employee or anyone else is up to no good you need to determine quickly whether your suspicions are warranted. If you ignore your suspicions you could wind up walking into a trap. The best thing to do if you suspect nefarious activity is to get in touch with NPI. You will find working with us to be a very straightforward process that entails 4 simple steps:

1. Contact Us

The first step on the road to the truth entails you getting in touch with us. One of our expert case managers will listen in a non-judgemental fashion as you sketch the situation in broad strokes for them. Once you’ve finished they will present you with what they believe to be your best option going forward.

2. Information

If our case manager has determined that your situation would benefit from a Private Detective they will ask that you get more specific. You may be reluctant to divulge certain information but rest assured, we have many years of experience and understand the fundamental importance of confidentiality.

3. Investigation

Our Investigator will devise the most effective approach to your case based on the background information you provided. That may include public records searches, high-tech monitoring, personal surveillance, discreet photography or thorough background checks of the parties concerned.

4. Report

Once we are satisfied we have uncovered the truth we close the investigation and within 24 hours of doing so we issue a final report detailing our findings. The report will be delivered to you in a discreet fashion and what you ultimately do with the enclosed information will be entirely up to you. Remember, we do not pass judgment. We only uncover the truth.

Contact National Private Investigators

Whether a loved one is missing or a competitor is attempting to undermine your business interests, you need to know exactly what is going on so you can make smart decisions going forward. If you have reason to suspect the worst, get in touch with NPI by calling 020 7459 4526 and ask about hiring a Private Detective in Southampton.

Scroll to Top