Alexandre Ribeiro – Certified Private Investigator
LIDEPPE | WAD | IKD | APDPE
24/7 Confidentiality
Private Investigators in Portugal
Confidentiality, Ethics and Legal Evidence
We operate throughout the entire national territory.
24 hours a day, 7 days a week
Private Investigators in Portugal
High-Trust Investigation Specialists
If you are looking for discretion, rigor and concrete evidence, our network of private detectives in Portugal offers professional investigation solutions throughout the country and the autonomous regions of the islands.
With a consolidated presence from north to south , we guarantee unprecedented national coverage, operating with maximum confidentiality through our investigation agencies in the North, in the Center and in the South.
We operate strictly within the Portuguese legal framework in all private investigation services in Portugal, ensuring solid results anywhere in the country.
If you require an intervention under absolute secrecy in the capital and surrounding areas, consult our private detective agency in Lisbon .
For investigations focused on the large business and residential hub in the north, we work directly with private detectives in Porto.
If your case requires movement monitoring or audits on the southern coast, we cover the entire region through our private detectives in the Algarve .
Detective Alexandre Ribeiro
A Life Dedicated to Private Investigation
" Private investigation is not just my profession; it's my legacy. As a specialized private investigator with decades of field experience, I am dedicated to ensuring the truth in complex cases of corporate fraud and family disputes ."
I grew up watching my father's mastery, one of the pioneers of private investigation in Portugal , at a time when the digital world did not exist and the success of a case depended exclusively on cunning, patience, and newspaper footnotes.
It was in this environment of discretion and rigor that I honed my instincts. I began my journey in 2001 , at just 16 years old, learning the art of surveillance and intelligence gathering "the old-fashioned way"—where precision was the only rule.
Investigation Services
Private Investigation in the Algarve
Specialized and discreet surveillance in cases of marital infidelity, especially relevant during vacation periods and extended stays in the region.
Heritage Investigation in the Algarve
Locating assets, hidden assets, and debtors, with a particular focus on real estate, second homes, and inheritances of owners residing abroad.
Business Intelligence in the Algarve
Protecting your business against unfair competition, fraudulent absenteeism, and information leaks, within a business environment heavily linked to tourism and hospitality.
Technological Research in the Algarve
Detection of listening devices and hidden cameras in resorts, marinas, and residences, with digital forensic analysis to ensure the integrity of communications and data.
Why choose our private investigators in Portugal?
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Total Geographic Coverage
We operate in all districts and autonomous regions.
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Absolute Confidentiality
Your anonymity is our number one priority.
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Cutting-edge technology
We utilize the most advanced technological resources available in the research market.
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Detailed Reports
Technically rigorous reports prepared within the legal framework
Don't leave your questions unanswered. Contact the best private investigators in Portugal today and regain your peace of mind with a professional, fast and effective investigation .
Credibility and International Recognition
My clients' trust is underpinned by my absolute commitment to ethics and legality. I am Partner No. 33 of LIDEPPE ( League of Professional Private Detectives of Portugal ), one of the oldest and most respected institutions in the sector .
Member No. 33 LIDEPPE
League of Professional Private Detectives of Portugal
Through LIDEPPE , I am also an integral member of the IKD (Internationale Kommission der Detektiv-Verbände), the prestigious International Federation of Private Detective Associations . This international recognition allows me to operate with a global network of contacts, guaranteeing support in cross-border investigations with the highest quality standards.
IKD Member
International Federation of Private Detective Associations
In a crucial strategic step towards our internationalization and prestige, we are proud to announce that we are now members of WAD, No. 1687 (World Association of Detectives), the oldest and most prestigious private investigator association in the world . This integration places us at an elite level , providing access to leading global resources and partnerships .
World Association of Detectives
Member No. 1687
WAD
Further reinforcing our commitment to excellence and representation in the sector, we have also joined APDPE (Professional Association of Private Detectives of Spain) under membership number 1326. This association expands our operational capacity and the exchange of specialized knowledge, consolidating our strategic position in the Iberian market and continuously raising the standards of rigor and professionalism that we apply to each investigation.
Member No. 1326 APDPE
Professional Association of Private Detectives in Spain
Recognition and Professional Ethics
in Social Communication
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Should private detectives be legalized? Elementary, my dear Watson.
Private Investigator Alexandre Ribeiro
Should private detectives be legalized? Elementary, my dear Watson" — This was the motto of the interview given by Detective Alexandre Ribeiro to TSF Rádio Notícias, where he addressed the importance of rigor, legality, and transparency in the private investigation sector in Portugal.
Source of Information:Jornal Nacional TVI
As investigative specialists, discretion is our fundamental principle. We neither intend nor should we appear on television; we prioritize anonymity to preserve the effectiveness of our field operations—which is where we are truly useful and important to our clients.
However, our technical expertise makes us a benchmark in the sector. This often leads us to be a source of information for national television channels, as happened in this TVI report, which cites data and experience from the company Detetives Privados Portugal.
Trust is built on results and confidentiality , not on exposure.
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Articles about private investigation in Portugal
What our costumers say about us
At Private Detectives Portugal , our reputation is based on absolute discretion and the success of our investigations. These testimonials (with identities protected in accordance with the GDPR ) reflect our commitment throughout the country . We act with the same rigor in cases of marital infidelity , family surveillance, and highly complex corporate investigations .
Gaia Testimony
Business Security Consulting
Testimony Algarve
Data Monitoring and Protection
Testimony Lisbon
Locating People and Assets
Porto Testimony
Private Investigators Portugal
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