Alexandre Ribeiro – Certified Private Investigator
LIDEPPE | WAD | IKD | APDPE
24/7 Confidentiality
Private Investigator in Porto
Private Investigation Agency Porto
Private Investigation Agency in Porto – Alexandre Ribeiro
If you are looking for a private investigator in Porto, you are likely facing a delicate challenge and this may be your first experience with an investigation agency in Portugal .
As members of national and international associations of Private Investigators, such as WAD, LIDEPPE , APDEP, and IKD, we guarantee ethical conduct and absolute confidentiality .
Our agency offers the standard of excellence and discretion that the capital of the North demands. Strategically located on Rua do Heroísmo, we operate with complete mobility throughout the city of Porto, guaranteeing accurate results in any parish or industrial zone.
With a deep understanding of the social and business realities of Porto, Detective Alexandre Ribeiro is the go-to expert for those who demand solid evidence and immediate results. Specializing in marital investigations , custody cases , and corporate intelligence , we operate with a rigorous methodology that combines cutting-edge technology with the experience of those who know the field well.
Operation throughout the Greater Porto
Our response capacity is not limited to the city center. We have a deep understanding of the urban dynamics of the region, extending our surveillance and evidence collection operation to all neighboring municipalities , ensuring the same effectiveness in: Vila Nova de Gaia , Matosinhos and Leça da Palmeira , Gondomar , Valongo and Ermesinde , Maia , Póvoa de Varzim and Vila do Conde , Trofa and Santo Tirso.
Whether for personal matters or complex business audits , our agency is your trusted ally in uncovering the truth.Do you need immediate help?
Contact our central office and find out how we can proceed with the rigor your case requires.
Specialties in Private Investigation in Porto
Beyond our core services, the Private Detectives Portugal agency offers a complete ecosystem of tactical and forensic capabilities. Explore our specialties below and identify the most suitable solution for your case; we are prepared to deliver the results and clarity you need.
Private Investigation in Porto
Specialized and discreet surveillance in cases of infidelity, monitoring of behaviors, and protection of minors with detailed reports.
Heritage Investigation in Porto
Rigorous asset tracing, debtor location, and identification of hidden assets to support inheritance or foreclosure proceedings.
Business Intelligence in Porto
Protecting your business against unfair competition, internal theft, or fraudulent absenteeism, with a focus on corporate intelligence and security.
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Technological Research in Porto
Advanced detection of listening devices and digital forensics to ensure the integrity of your communications and computer data.
FAQ's
How much does it cost to hire a private investigator in Porto?
We don't work with hourly rates or a public price list because each investigation has a different scope. Most of the market charges between €40 and €70 per hour — a model where twelve hours of work easily translate into a bill of thousands of euros. We present a fixed budget, defined after a free and confidential initial assessment: the agreed value is the final value, with travel within the Greater Porto area, mileage, and technical equipment already included.
Which areas in the North do they cover from Porto?
We operate throughout the Porto district — including Vila Nova de Gaia, Matosinhos, Maia, Gondomar, Valongo and Vila do Conde — and extend our activity to the districts of Braga, Aveiro and Viana do Castelo. For cases requiring travel outside this area, the travel cost is indicated in the initial quote.
Do I need to travel to your office in Porto?
It is not mandatory. The case can be opened by phone, video call or email, with the same contractual formality. If a meeting is necessary, and if travel is difficult, we will travel to the location that is most convenient for the client within the metropolitan area.
Do they conduct surveillance on weekends and at night?
Yes. Most useful surveillance happens precisely outside of office hours — evenings, weekends, and holidays. Planning is done based on the specific routine of the case, not a fixed schedule, and the team is sized according to the area and the type of monitoring needed.
Do they conduct electronic sweeps and bug detection in Porto?
Yes. We conduct sweeps of offices, homes, and vehicles to detect microphones, hidden cameras, and GPS trackers, as well as analyze mobile phones to detect spyware. The sweep is performed on-site using radio frequency and thermographic equipment, and concludes with a technical report detailing the findings.
Do you work with law firms and companies in Porto?
Yes, it's a significant part of our activity in the North. We support law firms in gathering evidence for family, labor, and civil cases, and companies in cases of unfair competition, absenteeism, information leaks, and verification of business partners. There are specific conditions for regular collaborations.
Is your agency accredited?
We are members of LIDEPPE (no. 33), WAD — World Association of Detectives (member no. 1687), APDPE — Asociación Profesional de Detectives Privados de España (member no. 1326) and IKD . All work is carried out in compliance with the GDPR and the legal limits applicable to the collection of information in Portugal.
Private Investigators Portugal
Contact Information
Address
Rua do Heroísmo 333, loja 120, 4300-259 Porto
Contact
Opening Hours
24/7 Customer Service
