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Private Detectives Arga Group


Arga Group Detective Agency

In Arga Private Detectives, we are experts in solving cases. We are motivated by your success and committed to meeting your goals. In our detective office, we understand our clients, we put ourselves in their shoes and we echo their needs through a professional and efficient private investigation. Our goal is to obtain irrefutable proof of the truth. Thanks to our philosophy of improvement and understanding, we have positioned ourselves as the best private investigators in Madrid and throughout Spain. With a national and international presence, we stand out for our very high success rate, almost 100%. Trust us and get results. Request a quote now.

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Hire the best private investigators totally discreet and efficient

Arga Detectives Groupwe are an agency of private detectives and private investigators established in Spain that offers personal and family investigation services, business, IT and technology as well as specialized services and services for lawyers.

We are a fully accredited private detective agency dedicated to providing concrete and effective private investigation services. We act in situations with all levels of seriousness, from labor or matrimonial matters, electronic sweeps, inheritance, internal theft, forgery, hacker investigation, to locating people and fraud, locating people, medical leave, recovery of deleted whatsapp, among others.

We not only work in Spain, but also internationally.

In Grupo Arga Private Detectives we are committed to achieve the proposed objectives to solve all your problems, and thus, to be able to take action as soon as possible. Our greatest achievement is to get what our clients need. To do this, we draw up a strategic plan, ensuring maximum confidentiality and professionalism in a framework of full legality.

Why choose Grupo Arga detective agency?

What defines us as the best private detective agency is our long professional trajectory of 15 years of experience, in addition to our achievements that translate into 6,000 solved cases. That is, a 90% success rate in all cases worked.

The Arga Detectives team is composed of private detectives with a high level of professionalism, discretion and speed. We understand that those who come to us are going through a complicated situation and, therefore, must be treated with empathy, but without losing the objectivity of the matter.

Our passion for uncovering the truth and our dedication to solving cases sets us apart, whether it is to uncover the truth behind a personal or business matter, the Arga Detectives team is there to provide clear answers and effective solutions.

When it comes to our work, we combine the astuteness of a detective with the most advanced investigative tools, taking advantage of the latest technologies and techniques in the industry. We pride ourselves in being able to solve any issue that prevents your life from going on as usual, always maintaining the confidentiality and respect that your privacy deserves.

That is why there are three key points that define us and differentiate us from other private detective agencies:


The best private investigation can only be carried out with the utmost professional secrecy and diligence.


Our private investigators are extensively trained in all areas of private investigation and teamwork.

Technical resources

To achieve our objectives we use state-of-the-art technology applied to the field of private investigation.


Most demanded detective services


Any type of company, from the smallest to the largest, is a juicy target for any type of vandalism or illegal act. Our team of private detectives are highly qualified to solve any issue that intrigues your company. We act in the following areas:

Investigation of sick leave.
Corporate investigations
Solvency Reports
Patent and Trademark Research
Mystery shopping
Hotel Security
Economic reports
Labor detectives
Non-uniformed surveillance
Follow-up to Commercials.
Information Leakage
Internal thefts

Más información


Private investigations related to a personal or family environment are much more sensitive and we approach them in a more special way. When dealing with close people, whether family members or a group of friends, this type of situation carries an emotional connotation that must be approached with sensitivity. We conduct investigations for:

Modification of regulatory agreement
Demonstration of coexistence
Paternity Tests.
Control of Minors.
Scam investigation
DNA analysis
Addiction Research
Cults and fanaticism
Doubts about domestic service
Fulfillment of housing orders

Más información


Advances in information and technology have offered endless opportunities to this contemporary world, but it has brought with it other types of actions that can be malicious and illegal. Arga Detectives is in charge of solving the following technological problems:

Electronic sweeps.
Analysis of Mobile Phones.
WhatsApp Research
Recovery of deleted messages
Social Network Research.
Computer expertise
Computer audits
Authenticity Certification.
Hacker research
Computer analysis of computers
Spyware detection
Installation of Hidden Cameras.
Forensic Image Analysis.

Más información


We offer certain specialized services to solve special situations that require highly qualified private detectives:

Location of Persons.
Old rental lease
Electronic sweeps
Handwriting appraisals
Fraud investigation
Conduct reports
Surveillance and monitoring
Camera installation
Hidden cameras
Non-uniformed surveillance
Cell phone analysis
Mutual and insurance companies
Whatsapp recovery
Urban Leases.
Conduct Reports.

Más información


Finding a Detective who specializes in providing evidence to trusted lawyers and who will be effective when facing trial can be a difficult task.

In Grupo Arga Private Detectives, we offer the best service of assistance to lawyers, with a high professional capacity, experts in providing judicial evidence and the best advice in the judicial sector.

Más información


Our quality private investigation services reach beyond the Spanish territory, so if you have any problem outside our borders, do not hesitate to count on Arga Detectives, professionals inside and outside Spain. We operate internationally.

No matter what kind of problem or compromising situation you are in, in Arga Detectives we have a group of professional private investigators trained to solve with the utmost confidentiality and discretion any private matter. Do not hesitate to contact us.

We offer services in most countries, such as USA, Portugal, Andorra, France, Germany, Great Britain, Canada, etc.

Más información


Guaranteed Results

Thanks to our long professional trajectory, we have been able to reach where others have not been able to. With more than 6,000 cases carried out with the utmost rigor, we have positioned ourselves as the leading private detective agency in private investigation.

These results are achieved thanks to the fact that we guarantee a work with a high level of confidentiality and the use of the latest technologies, reaching the maximum rigor and perfection. The human team of Grupo Arga Private Detectives is highly qualified and trained thanks to their great academic and technical preparation, which makes them great professionals in private investigation.

Our services cover the entire Spanish territory and are also available internationally. We offer our services to large companies, individuals and even lawyers. If you find yourself in a situation that you do not know how to solve or how to deal with, do not hesitate to talk to us and request a free quote. We will prepare an action plan with guaranteed results.

How do we work?

What makes successful results possible is our team of professionals, specialized in the different services in the field of private investigation. We use tools adapted to the technological means and with the most innovative advances. This allows us to have accurate results and much closer to reality. We carry out an appraisal work oriented to the courts to guarantee the maximum possibility of winning any litigation.

When it comes to uncovering the truth, we use all types of camera and micro-camera equipment, as well as eavesdropping detection equipment and other technological elements. In addition, we deliver a detailed report consisting of the entire sequence of photographs and a video report to provide a clear and transparent vision, which does not give rise to misunderstandings.

Finally, we have our own video and image analysis laboratory that guarantees maximum efficiency when it comes to capturing all the content in the report we deliver, so that we can be as eloquent, professional and legal before the Courts.


Find our Private Detectives anywhere in Spain.






Castilla la Mancha

Castilla y León


Comunidad de Madrid

Comunidad Valenciana



Islas Baleares


La Rioja




País Vasco

Arga Detectives in the Media

Private detectives Arga in press, radio and television. Meet our detective agency Arga, expert in private investigations with its participation in different debates and current affairs. One of our private detectives talks about fraudulent sick leave and the role of the private detective in private and business issues.

Arga Detectives in


Arga Detectives in


Arga Detectives in


Positive comments from clients to Detectives Arga detectives

Get to know the best customer reviews of our private detective agency in Madrid. We carry out a private investigation with the best guarantees of success and professionalism. If you need a private investigator, Grupo Arga is your best option. We offer a quality research service.

A base de 83 reseñas
Milagros Gonzalez
Milagros Gonzalez
Teníamos un empleado que se encontraba en una baja laboral y sospechábamos que era falsa. La investigación laboral que realizaron los investigadores privados de Grupo Arga fue muy efectiva. Efectivamente nuestro trabajador estaba cometiendo una baja laboral fraudulenta. Hemos podido negociar con el trabajador para despedirle sin indemnizarle.
Jose Corrales
Jose Corrales
Private detectives in Spain very effective. Our company needed proof of fraud in Madrid and Barcelona and they acted very quickly. They were very effective. Many thanks to these private investigators in Spain Grupo Arga.
Jesus P
Jesus P
Un gran equipo de profesionales, atentos y eficaces, Recomendables 100%
Nil Gascó
Nil Gascó
dios mio lo mejor que hay en el mercado recomendado al 100%

Frequently Asked Questions about Private Detectives

In today’s world, security and privacy are important issues for many individuals and businesses. Private detectives have become a valuable tool for those seeking to protect their interests or uncover important information. In this article, we will answer the most frequently asked questions about private detectives: what they do, how they are hired, how much they cost, how long an investigation takes, what kind of information they can obtain, whether they have access to confidential information, and what happens after an investigation is completed. If you are considering hiring a private detective or are simply curious about their work, this article will provide you with valuable information.

In short, private detectives are professionals who can help solve many types of cases and situations. From infidelity investigations to corporate fraud cases, private detectives have the skills and tools necessary to obtain confidential information and conduct thorough investigations. However, it is important to keep in mind that the cost and duration of an investigation can vary significantly depending on the case in question. In addition, private detectives must operate within the legal and ethical framework to ensure the validity of their work. As a society, it is interesting to reflect on the need to hire a private detective to solve personal or business problems. Is this a sustainable long-term solution? Should we look for other ways to address these problems? The answer to these questions depends largely on the context and individual circumstances, but it is important to consider them before making a decision on whether or not to hire a private detective.

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