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Forward Thinking

Working Towards Future Endeavours


Strategic Planning

Care and consideration are key to a successful result


Settling Reassurance

No matter of the situation we are hear to undertstand and assist you with your problems


Confidence & Direction

We can help decide the best way forward


Outstanding Results

We are a results driven company and thrive off customer satisfaction


Welcome to William Stewart Investigations

Investigation, Intelligence & Legal Support Specialists serving Corporate and Private clients Worldwide


  • Tracing People & Assets 
  • Background & Financial Investigations
  • Asset Location & Reunification
  • Due Dilligence Reports acquisitions, mergers
  • Surveillance Solution
  • Fraud Matters / Investment Scam
  • Cryptocurrency Matters / Blockchain
  • Cyber Security & Intelligence
  • Risk, Strategy & Dispute Advisor
  • Penetration Testing & Vulnerability Solutions 
  • Family & Corporate Wealth Disputes 
  • Probate Research (including Contentious) 
  • Family History Research 
  • Genealogy 
  • Births, Deaths, Marriage Research & Certification 
  • TSCM / Technical Surveillance Counter Measures (Bug Sweeps) 
  • GPS Tracking Solutions 
  • Business Analysis 
  • Crisis Management 
  • International Assistance 
  • Pre-Sue Reports 
And much more……


Matrimonial Investigations

Premarital Enquiries 

Cohabitation Cases 

Legal Sector Support 

Family Matters

And Much More… 


Due Diligence 

Background Checks 

Pre Employment Checks

Risk Assesment 


And Much More…


Debtor Tracing

Beneficiary Tracing

Employment Tracing

Missing Persons Tracing 

Tenant Tracing 

And Much More… 


Cohabitation Cases 

Matrimonial Cases 

Employment Issues

Insurance Claims 

Corporate Espionage

And Much More…

Fraud and Scams 

Cloned Firms

Identity Theft 

Investment Scams 

Email Scams

Boiler Room Scams

And Much More…



Phishing Emails

Money Transfer Fraud

Fake Exchanges 

Scam Coins 

And Much More…


Tracing Beneficiaries 

Probate Matters 

Family Research 

Family Trees 

Births, Deaths, Marriages 

And Much More…

Bug Sweeps

Household Sweeps 

Office Sweeps 

Vehicle Sweeps 

Corporate Sweeps 

Commercial Sweeps 

And Much More…

GPS Tracking

Vehicle Tracking

Asset Tracking 

Cargo Tracking 

Motorcycle Tracing 

People Tracking 

And Much More…

Private Investigator Brighton

Welcome to William Stewart Investigations, your premier choice for Private Investigator services in Brighton. As a distinctive private investigation firm, we set ourselves apart by delivering a discreet, reliable, and highly effective service to clients globally. Our commitment is to ensure complete satisfaction throughout every stage of our engagement, providing you with absolute peace of mind.

Our comprehensive suite of services spans a diverse range of areas, encompassing tasks such as tracing beneficiaries, conducting matrimonial surveillance, and addressing all intermediary points. Situated in the central hub of West Sussex, our wealth of experience positions us as adept partners in assisting both domestic and commercial clients in uncovering the answers they seek with utmost professionalism.

"I had the pleasure of working with this private investigation company on a recent case and I can confidently say that they exceeded my expectations. From the moment I contacted them, they were responsive, professional, and extremely knowledgeable. Their attention to detail and tenacity in uncovering the necessary evidence was truly impressive. They were able to provide me with the information I needed to win my case and their testimony in court was invaluable. I highly recommend William Stewart Investigations to anyone looking for a trustworthy and effective private investigation firm in the UK."

David MatthewsSolicitor

"We recently engaged the services of William Stewart Investigations to assist with an internal investigation and we couldn't be more pleased with the results. The team at William Stewart Investigations were extremely thorough in their approach, and their findings were presented to us in a clear and concise manner. Their professionalism and expertise were evident from start to finish, and we were impressed with their attention to detail and dedication to the task at hand. They were able to provide us with the information we needed to make informed decisions and take appropriate action. We would not hesitate to recommend this Private Investigation Company to other companies in need of investigative services."

Mr KellerCorporate Buiness Owner

"I have been using the services of William Stewart Investigations for many years now, and I can confidently say that they are the best tracing company out there. Their team of experts are highly skilled at what they do and have consistently delivered outstanding results for me. They have helped me to locate individuals for a variety of reasons, from tracking down missing family members to finding debtors who have absconded. Their dedication and commitment to their work is second to none, and they always go above and beyond to ensure that they deliver the results that I need. I highly recommend William Stewart Investigations to anyone in need of tracing services."

Steve BruceDebt Collection Specialist

I wanted to take a moment to express my appreciation for the excellent surveillance work you recently conducted. As a fellow private detective, I know firsthand how challenging and demanding this line of work can be. It requires a great deal of skill, patience, and attention to detail, and you clearly possess all of these qualities in abundance.

Your ability to conduct discreet and effective surveillance was truly impressive. You were able to gather critical evidence that was instrumental in solving the case at hand, and your thorough and meticulous approach ensured that nothing was overlooked. Your attention to detail and ability to think on your feet helped us to navigate some difficult situations with ease, and your professionalism throughout the entire process was exemplary.

I am truly impressed with your work and would not hesitate to recommend your services to anyone in need of a skilled and reliable private detective. You are a credit to our profession, and I am proud to call you a colleague.

Thank you again for your outstanding work, and I look forward to working with you again in the future.

Paul ClarkePrivate Investigator

Private Detectives Brighton

If you’re seeking the type of Private Investigator Brighton can rely on, look no further. William Stewart Investigations offer a professional service in all areas, and will be happy to discuss your needs in more detail before deciding on the most effective approach.

As a leading Private Investigation company with a focus on continuous improvement, we are able to call on the latest technology in order to achieve our goals. We have the experience and the knowledge to find out the facts in as quick a time as possible, so be sure to contact the finest Private Investigator Brighton can provide.

Whether you are looking to track down a debtor, locate a long-lost relative, find out more about an absent employee, investigate the practices of a business rival or seek a beneficiary to a will, one call to William Stewart Investigations is all you need to start the ball rolling.

For a confidential chat with a friendly specialist, get in touch today and see what we can do to help you. Just give us a call on 0800 158 3683 or use the form on our Contact Page.

Private Investigator Brighton

Have a question? We’d be delighted to hear from you…get in touch

 Private Investigator Brighton


Brighton Office: 15-17 Middle Street, Brighton, BN1 1AL

London Office: 6 South Molton Street, Mayfair, London, W1K 5QF

Corporate Office: International House, 36-38 Cornhill, London, EC3V 3NG

Phone Number: 0800 1583683



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