Office buildings in the Castellana business district of Madrid, Spain

European Coverage

Private Investigator in Madrid

In Madrid, RAINBOWNET supports Spanish groups, family offices and Latin American investors whose interests cross the Atlantic. The Castellana business district concentrates decisions that often commit assets on three continents. Our mandates combine documentary verification, fieldwork in Spain and coordination with correspondents across Latin America.

Castellana and Iberian groups

Madrid head offices run holdings spread across Spain, Portugal and Latin America. A single holding may own a subsidiary in São Paulo, a building in Lisbon and a public contract in Bogotá. Reading that architecture means cross-checking registers whose publication requirements differ sharply from one country to the next, and sometimes from one region to another.

We map the real interests, separating declared holdings from de facto links that appear nowhere on paper. Mandates frequently include reputational checks on directors, whose professional record often says more than the legal structure itself. The distinction changes how an offer should be read, and it is rarely volunteered by the seller.

Latin American investors and prior verification

Madrid serves as Europe's entry point for Mexican, Colombian and Chilean investors. Before committing funds, they need to understand local rules, administrative timelines and the real solidity of their Spanish partners, whom interested intermediaries often present in a flattering light. They also need to know who is really behind the intermediary presenting the deal.

We verify that projects exist, examine promoters' track records and check the authorisations announced. Gaps between the commercial presentation and the administrative reality are common in real estate and renewables; documenting them early avoids commitments that become difficult to unwind. A well-presented project can still rest on land that cannot be built on.

Arbitration, recovery and scattered assets

Iberian disputes often involve an arbitral award to be enforced in a country where the debtor no longer has a visible presence. Finding assets then means following flows, identifying nominees and understanding local ownership habits, which differ appreciably between Spain and overseas jurisdictions. The jurisdiction of enforcement matters as much as the award itself.

We work with counsel to locate attachable property and document control links. Findings are presented in a form the lawyer handling enforcement can use directly, with the reservations attached to each source's reliability. We also indicate what remains out of reach within the time available, so that no expectation rests on a gap.

Local legal framework

Spain frames private investigation within its private security regime: agencies must be authorised and their detectives registered with the Ministry of the Interior. One of the more formalised frameworks in Europe, it imposes precise identification and reporting duties. Mandates conducted in Spain are therefore structured with locally authorised operators, and our reporting reflects that. This is one of the reasons mandates in Spain are rarely run remotely.

Frequently asked questions

Private investigation in Madrid

Can you trace assets in Latin America?

We coordinate research beyond Spain with local correspondents, stating clearly what can be verified in each country. Some registers are open, others are not. No conclusion is delivered without an identifiable and dated source.

Do you work with Spanish lawyers?

Yes, on enforcement and litigation files. Lawyers and court agents determine which steps are admissible and set the procedural timetable. Our work is to supply the factual elements they need, in a format compatible with their submissions.

What is distinctive about the Spanish regime?

Spain requires authorisation for private investigation agencies and registers their detectives. Mandates conducted on its territory must therefore meet precise identification and reporting duties, which we build in from the moment a mission is structured.

How long does Iberian due diligence take?

Two to four weeks for a target with accessible documents. Field verification in Spain and Portugal is added according to scope. Research in Latin America requires timetables specific to each jurisdiction, which we set out at the outset.

Next step

An investigation need in Madrid?

Describe your situation: we will set out feasibility, the local legal framework and the method.