Decisions in Life Are Best Made on Facts

International organisations across the UK and abroad consider Dion International as Glasgow's best private detective agency, why? Because our experienced private investigators find effective solutions to problems through proven strategies that get results in the quickest time possible. Our local Glasgow private investigators have the knowledge, expertise, and resources our clients need and trust.

Dion International private detective agency boasts award-winning private investigators and are the primary private investigator agency for private investigation services throughout the west of Scotland and Glasgow for all sectors including, corporate clients, private clients, legal firms, housing associations and local authorities. Our professional private investigators are highly experienced, and each has a diverse range of skills developed from military and police backgrounds, which enables us to handpick the right skill set of private investigators to competently conduct your investigation.

We understand the sensitivities involved when contacting a private detective company in Glasgow for the first time and for some this can be daunting, but rest assured our highly experienced private detectives will guide you through the process and options relating to your case. Having dealt with all types of cases over the years we will make this as painless as possible. Our private investigators in Glasgow can offer a wide range of services and assist clients internationally with sensitive private investigations and stressful business disputes. All private investigations conducted throughout Glasgow, the UK and abroad are executed by our specially selected in-house private investigators, meaning when you instruct Dion International your investigation is handled in the most professional, discreet, and cost-effective way possible.

Private Investigator Services Glasgow

Every case in Glasgow is treated with a unique approach and fresh thinking


What Can Dion International Investigations Do For You And Your Business?

Dion International Ltd offers a wide range of private investigator services throughout Glasgow, these include witness statements, professional witness, security audits, missing persons, fraud investigations, matrimonial investigations, background checks, employee disputes, child custody investigations, due diligence, computer forensics, cohabitation, tracing debtors, rural surveillance, TSCM bug sweeps, cheating partner investigations, GPS vehicle tracking, process servers and covert CCTV intelligence-gathering.

At Dion international, we are specialists in our chosen fields and are considered one of Glasgow’s best providers of covert surveillance investigators and tracing agents. Our highly trained tactical team of professional investigators and covert surveillance teams in Glasgow are well disciplined and know what is required for effectively accomplishing all set objectives. Surveillance is one of the best investigative approaches when researching an individual’s day-to-day behaviour, movements, and general lifestyle. The ultimate objectives are obtaining crucial information, evidence gathering and doing so in an incredibly covert but legal way.

Enquiries are treated strictly private and confidential and all operations throughout Glasgow will be conducted within the law. Our private investigators are qualified to the national standard level 3 for professional investigators and Dion International hold all essential insurances and is registered with the information commissioner’s office and as such conform with the data protection act.


Why Choose Dion International Private Detectives In Glasgow?

Seeking the services of a professional private investigator in Glasgow? Look no further than Dion International. With our world-class tactical team of investigators, we provide comprehensive, effective, and discreet investigative services that get results.  Our private investigators in Glasgow are not just seasoned; they are also equipped with years of on-the-ground experience and industry leaders. With an impressive background in various fields including military, law enforcement and intelligence, they bring a wealth of expertise and skills to every case they handle.  Whether you need assistance with surveillance, background checks, corporate investigations, or personal matters, Dion International has got you covered. We offer a broad spectrum of private investigation services tailored to meet your specific needs.  Your privacy is our utmost priority. At Dion International, we handle all cases with the highest level of discretion. Rest assured; all information shared with us remains strictly confidential.   When it comes to private investigation services in Glasgow, Dion International stands unparalleled. Our experienced team, extensive service range, and commitment to your privacy make us the go-to choice for all your investigative needs.  When you’re faced with a personal dilemma of any kind, the best decisions are based on facts. Highly experienced in using a variety of skills and up-to-date technology on the market to gain solid evidence, Dion International can provide you with clear, undeniable evidence. We are not like other companies who portray to be national, only to sub-contract your case out to underqualified personnel on open networks. All investigations are conducted by our in-house professional and experienced investigators.  We will conduct a full subject analysis before putting boots on the ground, where others will deploy investigators straight away resulting in your budget being used in the quickest time possible.  At Dion International, we will gather intelligence to pinpoint the best time for us to deploy our investigators, thus resulting in less time on the ground and keeping costs to a minimum.  Our local private investigators are trained to the highest standards with decades of experience conducting sensitive private investigations and stressful business-related matters in Glasgow and have extensive local knowledge whether you’re in the City itself or surrounding areas of Paisley to Coatbridge or East Kilbride to Bishopbriggs.


A Turnkey Solution, Let’s Get Started

Our professional private investigators have the knowledge, expertise and resources or clients need and trust.

Surveillance Form

Surveillance Form

Surveillance is conducted by concealing it from the subject, or by ensuring they are unaware of its presence. Complete our form now to get started. Submit Form

People Search Form

People Search Form

We offer a No trace no-fee service, meaning if we’re not able to find the person during our search, you don’t pay. Complete our form now to get started. Submit Form

Process Serving Form

Process Serving Form

Effective service needs to be carried out by assertive, reliable, and trustworthy agents. Same day service available. Complete our form now to get started. Submit Form

Frequently Asked Questions

There are no two cases alike, and to determine the cost, several factors must be considered, including methods of delivery, number of hours, number of operatives to be provided for the investigation to be conducted professionally, mileage, and any other special resources required for the investigation to succeed.

Typical private investigator costs in Glasgow are between £25.00 - £125.00 per hour.

At Dion International we are clear about our prices, here are some to give you an idea of costs involved when hiring a private investigator in Glasgow.

Typical Rates:

General Enquiries – Our general enquiry costs start at £40.00 per hour but depends on the number of detectives required and the time of day or night the service is needed.

Surveillance – Our surveillance service costs start at £50.00 per hour. ( Minimum 4 hours ) this also depends on the number of operatives required to conduct the operation correctly and professionally, and any specialist equipment that may be needed.

Travel Time – Hourly rate of service.  We offer daily rate packages where travel time is included in the set price.  Meaning you know exactly what you are paying from the start.

Mileage – 0.60p per mile.

Report – Our reports start at £150.00, this will depend on the duration of the task.  The longer the task the longer the report which will require additional costs; however, our daily rate packages include a full report, meaning, no additional costs will be added when committed to one of our packages.

People Search – Our trace service starts from £99.00 - £249.00, additional costs may be required depending on the information provided to us.  The basic information we ask is a, name, date of birth and last known address.

Process Server – Our process serving service starts at £80.00 - £175.00, additional costs include the number of pages that may need printing, travel time and mileage.

Vehicle Tracker – £45.00 per day.  Additional costs for mileage may apply depending on hire duration.  The devices we utilise are the best on the market which reflects the price.  The price includes monitoring and reporting.  We will not provide anyone login details for these devices. 

Visual Surveillance – From £45.00 depending on duration of hire, prices include monitoring and reporting.  The covert equipment is the best on the market at the moment and is utilised for obtaining intelligence on a subject. 

Bug Sweeps - Our bug sweeping service starts at £400 and prices can rise depending on the size of the sweep, rooms swept, and complexity of the situation.  Please get in touch to discuss your bug sweeping needs where we can give you a more accurate estimate.

Surveillance Daily Rates:

Dion International offer surveillance daily, usually broken down for investigations lasting long periods. Fixed rates take into account the hourly rate, travel time, mileage, and the final report — thus giving you a clear understanding of your costs upfront.

Costs are important when considering what private investigation company to choose in Glasgow but getting it wrong can have dire consequences.

Hiring a private investigator in Glasgow who is more results-oriented than money-oriented and does their best to obtain the required evidence in the quickest time possible is certainly a company worth considering.

Hiring a UK private investigator does not violate any rules of law, in the UK. However, there is certain conduct that private investigators cannot engage in or else they will be violating the law.

You should check with the private investigator, before you hire them, that they follow all the rules and laws for private investigation. Following a set of rules and procedures with individual discretion, private investigators in Glasgow can ensure that all investigative work is completed to the highest standard and is fully admissible in a court of law.

The investigative techniques utilised by a private investigator can differ from one company to another. However, most companies will use various methods to obtain information for either individual or corporate purposes.

A private investigator is often useful for a number or reasons, but when a case or claim is necessary in a court of law, these professionals are invaluable at finding information and revealing the whereabouts of needed witnesses. It is important to contact a private investigator in Glasgow when anything that requires extensive research or surveillance is involved.

  • Type private investigator near me in the search bar
  • Head to the three-pack map section (This is where you will hopefully find a local private detective agency)
  • Click on the website and find the home page of that site, at the footer you will see the correct address for the business.
  • Make sure you check the reviews, these can be easily spammed. Click on one of the names to see if the same person has provided a review for the same company in multiple locations throughout the UK.  (Note most private investigation companies won’t have hundreds of reviews as most will likely work with people who don’t want their details, business and personal life spread over the internet)  Here is a link to our review profile on google: Reviews
  • When you find an investigations company you believe to be near you, call them but listen out for the accent.  (Note not all will be hundreds of miles away if they don’t have a local accent)
  • Ask if you can attend the office to meet in person.  Dion International do not have an office in Glasgow we will meet with clients in Edinburgh where we are based. (Please note this will be charged at a fee and an appointment is required)

You may require a private investigator in Glasgow in a wide variety of situations, such as when a person has disappeared or you suspect an employee of lying about a serious illness, but in this time of privacy as well as a strict legal system, how can you be certain that everything that your Glasgow detective does is legal and upholdable in a court of law?

The protection of personal security and privacy in Glasgow are rightfully protected by several laws and regulations, including, GDPR and RIPSA.

These laws protect your safety and prevent individuals from violating human rights.  With plenty of speculation surrounding the industry, it is imperative that when picking a private investigator in Glasgow they understand the powers of a private investigator and you select the one that places the law above all else.

If you have ever seen a thriller starring a private eye, you are probably familiar with them being somewhat unorthodox.  Depending on the situation, they are known to stop playing by the rules. However, in reality, that is simply not what private investigators do.

Private Investigators in Glasgow are not able to access someone’s computer or mobile phone without the express permission of the owner. They do have access to these devices, but they can only do so with the owner's permission.  Likewise, they are forbidden from obtaining bank records without appropriate permissions, although they may be able to see them when working directly with a lawyer who has obtained these authorisations.

Additionally, private investigators in Glasgow are not permitted to obtain criminal histories, unless criminal records are publicly available.  Private investigators cannot access CCTV systems remotely, nor can they call someone at MI5 to do this.

Individuals are embracing the role played by a private investigator, but there are limits to what private investigators are allowed to do when investigations or surveillance is conducted.

All operations executed throughout Glasgow are governed by the law.  Keep this in mind when hiring a private investigator in Glasgow.

  • Static Surveillance – Normally undertaken by one operative.  They can be carefully positioned outside a property and will be employed to film and record the movements of a person, or persons at an address or location in Glasgow.
  • Mobile Surveillance – This is when we are asked to follow a person/persons. It is usually undertaken by a team, whether that be two, three, four or more operatives.  We have the capabilities of utilising a variety of vehicles applicable to the job as well as all the latest technology and equipment to capture the required evidence for our clients throughout Glasgow.
  • Rural Surveillance – Required when our operatives are asked to monitor a scenario whilst in a rural area.  Depending on the circumstances, this can usually be conducted by one operative.

Please call one of our case managers and we will be happy to direct you.  We have listed a few below that may help you.

Intelligence & Surveillance Glasgow

In Glasgow, whether you require assistance with matrimonial, infidelity, Fraud Investigation, or child custody matters, Dion International can utilise a multitude of professional services throughout the UK and abroad. This includes providing covert surveillance teams to obtain evidential footage of matrimonial infidelity taking place to lifestyle checks and peace of mind.  Every case is different, so we deploy the services you need for your exact situation.

When you are faced with a personal dilemma of any kind, the best decisions are based on facts. Our professional highly trained investigators can help establish those facts and give you tangible evidence to help you make important life choices.  The spouse who is acting strangely. The child who might be hanging out with the wrong crowd. Or the money that has gone missing from the business accounts.  You can deal with such problems fairly if you have clear, undeniable proof.

Over 95% of our cases in Glasgow involve surveillance because our experts successfully find evidence where others fail. Highly trained in our military or police backgrounds, we melt into crowds as we follow people on foot or in vehicles. We remain unseen while observing a fixed address. And we convincingly pose undercover as customers, workers, or strangers in a bar.  Our private investigators will work lawfully, discreetly, and quickly to give you all the facts you need.

We will suggest the most effective means of minimising the possibility of a compromise by the subject or third parties and, upon consideration of specific circumstances and requirements, we may impose a minimum deployment requirement.  Their ultimate objectives are obtaining crucial information and doing so in an incredibly covert but legal way. We have male and female operatives available to work both within rural and urban environments.

Tracing Agent Glasgow

Dion International continue to work all over the world to locate people and we have an impressive 94% success rate.  Dion International's investigators succeed where others fail because of our experience, diligence, and dogged determination.  When searching for a missing parent, long-lost child, former partner, or old friend, allow us to take the stress off your shoulders, we simply ask for a name, date of birth and last known address/area to be provided.

Workplace Fraud Investigations Glasgow

In small and big businesses, trust is sometimes abused. In criminal court cases and tribunals, Dion International has provided irrefutable evidence of employee absenteeism and sickness, and in commercial, housing and property disputes.  

Proving theft from your business in Glasgow needs to be done with precision and professionalism. Dion International are highly experienced in using a variety of skills and up to date technology to gain solid evidence.  Our investigators are experienced in investigating all types of fraud, including insurance fraud, employee fraud, and financial fraud. Let us help you identify dishonest employees and provide you with clear, undeniable evidence for your day in court.

Vehicle & Asset Tracking Glasgow

Need to know where your asset is 24 hours a day? Dion International can show you. Please note as a stand-alone service this is an aid but using a combination of GPS devices and surveillance, our evidence is clear, irrefutable, and fully admissible in court.

Our vehicle tracking team is highly experienced and deployed throughout Glasgow daily. We constantly update our equipment to ensure we use the most up to date technology on the market. Our detectives can check in with you as and when required.

Cheating Partner Investigations Glasgow

If you suspect your partner is cheating it can feel like mental torture. Dion International detectives in Glasgow can help stop the pain by showing you proof of your partner's movements. 

Why are Dion International investigators considered Glasgow's best surveillance detectives? Because we are highly experienced and use world-class training from our police and military backgrounds to execute every job with precision, discretion, efficiency, and professionalism.

Child Custody Investigations Glasgow

Emotional dilemmas involving children are hard to deal with. Dion International can help by gleaning clear, irrefutable evidence in any personal or legal case involving children.

Our investigators are considered Glasgow's best surveillance detectives. We are highly experienced and use world-class training from our police and military backgrounds to execute every job with precision, discretion, efficiency, and professionalism.

Dion International are dedicated to fathers in Glasgow who are being alienated from their children.  If you have genuine concerns about your child's welfare and feel you are being punished for no reason, our operatives can help you get back to maintaining a loving relationship with your child.

Process Server Glasgow

Document serving needs to be carried out by assertive, reliable, and trustworthy agents. That is exactly why legal firms throughout the UK call on Dion International to carry out all their process serving needs.  Our operatives ensure every job is executed with precision, efficiency, and professionalism.  We look to get all cases complete within a 24hr period.

Due Diligence Glasgow

We conduct due diligence investigations for businesses, including background checks on potential partners and clients.

Evidence Gathering Glasgow

We use the latest technology and techniques to gather evidence for our clients.

Background Checks Glasgow

We provide comprehensive background checks for individuals and businesses.

Litigation Support Glasgow

We provide evidence gathering and witness statements to support litigation cases.

Commercial Clients Glasgow

We work with commercial clients to conduct employee investigations, background checks, and due diligence investigations.

Contact us.

To instruct Dion International to conduct your investigation in Glasgow please call, email, or complete and submit the contact form provided throughout the website for a free no-obligation consultation.

Instructions received.

On receiving your correspondence, we will let you know if we can help you or not.  If we believe using our services would benefit you, we will then ask you to see our published rates on our “pricing page”. 

Once you have reviewed the costs that are relevant to your case and you're happy to proceed, we will then ask you to complete the required paperwork and submit this back to us. 

On receiving your completed form we will then form a plan of action and present this to you.  If you’re happy with our proposal, then we're ready to commence your investigation.


All clients will be asked to clear the agreed balance before any investigation commences in Aberdeen.  We have various payment methods available.

At Dion International we prefer to have as much notice as possible to plan an operation, however, we have professional investigators strategically placed across Scotland which enables us to mount any successful operation in only a couple of hours.

During the investigation you will be updated from start to finish by our investigators on the ground.  If required we can best advise and provide recommendations during the investigation but ultimately you have total control at all times.


On conclusion of your investigation in Glasgow, we will provide you with a fully admissible report complete with any documented evidence and photographic stills.  A personalised DVD can also be provided on request.

A final invoice of any mileage and expenses incurred during the investigation in Glasgow will be cleared before we release the report.

Discover Our Latest Operations

A trusted provider of specialist operations and the number one choice for private clients and businesses throughout Glasgow.

Investigations Case Studies

Resolving commercial, legal and regulatory matters cost effectively, discretely and professionally.

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Security Case Studies

Provideing security services to all businesses, from local key holding arrangements to national guarding contracts.

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Protection Case Studies

Dion International continue to help companies succeed in today’s complex operating environments.

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Glasgow Private Investigators Focused On The Needs Of Our Clients Throughout The West Of Scotland

Our experienced and trusted Glasgow private investigators have local knowledge which is a must for any successful operation.

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