Alexandre Ribeiro – Certified Private Investigator
LIDEPPE | IKD | APDPE
24/7 Confidentiality

Private Investigator in Porto: Professional Investigation and Evidence Gathering in the North
Private Investigation Agency Porto
If you are looking for definitive answers, absolute discretion and legally valid reports, our team of private investigators in Gondomar offers the investigative support you need. We operate throughout the Porto metropolitan area, guaranteeing meticulous attention to detail and complete confidentiality of your identity.
We have advanced technological resources and researchers with in-depth knowledge of the terrain to carry out discreet surveillance and monitoring in complex urban and rural settings, operating in a completely imperceptible manner.
Private and Business Investigation Services in Gondomar
Our operational coverage encompasses all parishes in the municipality, from the most densely populated areas such as Rio Tinto and Fânzeres , to São Cosme , Valbom and the banks of the Douro River, covering strategic routes in the eastern region.



1. Investigation of Marital and Family Infidelity
Living with the suspicion of infidelity causes severe psychological strain. Our experts in marital infidelity in Gondomar monitor routines, schedules, and suspicious movements. If you need to confirm or dispel a suspicion, our specialized marital and infidelity investigation service compiles detailed reports with high-definition images and videos.
2. Locating People and Investigating Assets
If you need to locate a missing family member or monitor the whereabouts and assets of a defaulting debtor , we activate a network of data matching and direct surveillance to map the target with complete accuracy.
3. Corporate Protection and Employment Fraud
Gondomar has a strong commercial and small industrial sector, particularly in the jewelry industry. Through our business investigation department in Porto , we work to detect unfair competition , internal theft, and investigate fraudulent absenteeism ( false sick leave ) that harms your company's productivity.

Private Investigation Services: We operate in 11 types of service.
We operate in throughtout the whole country across four areas of technical specialization . Our 11 services are structured into 4 types of investigations, guaranteeing solid evidence and the strictest professional confidentiality throughout the country. You can choose the one that best suits your situation here.

Private Investigation

Business Intelligence
Cases of marital infidelity, child custody, and questionable behavior requiring discreet surveillance.
Employee investigations, unfair competition, internal theft, and industrial counter-espionage.

Asset Investigation
Locating assets, hidden assets, and debtors for legal proceedings and inheritances.
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Technological Investigations
Detection of wiretaps, hidden cameras, and digital forensics on mobile devices and computers.
Operational Strategy and Proximity
Conducting investigations in this region requires operational agility to track targets that move rapidly along highways such as the A43 , the IC29 , or the Dom Miguel Road , frequently linking our operations to teams active in the neighboring municipalities of Valongo and Ermesinde .
Don't make decisions without facts. Contact our central coordination through our private detective agency in Porto and schedule a strictly confidential consultation.
