

Clarity in Complexity
Decima is a Geneva-based, woman-led private investigation firm. We conduct targeted investigations to obtain reliable, verifiable information within the legal framework of Swiss law. Our expertise is built on two investigative pillars: Open-Source Intelligence (OSINT) and Professional Surveillance.
While we are a Geneva licensed company, our international network of trusted investigators allows us to conduct or support cases across Switzerland and abroad with the same standards of discretion and legality. We work with corporate clients, law firms, and private individuals, with a commitment to discretion, accuracy, and legality.
Intelligence solutions for complex challenges
We uncover hidden truths with strategic insight and rigorous methodology. Our approach transforms complex information into clear, actionable intelligence.

Corporate Due Diligence
Credibility review of companies, partners, or investors.

Background & Integrity Checks
Verification of individuals’ profiles, activities, and behaviour.

Investigations
& Surveillance
Observation and documentation of real-world actions. Fraud, double employment, civil or family matters.

People & Asset
Tracing
Locate persons or identify visible assets (property, companies, vehicles).

Online Reputation Review
Analyse public perception and online
exposure risks.
FAQs
Common questions about our confidential intelligence and investigation services
We use military-grade encryption and strict protocols. No information leaves our secure system without explicit authorization.
Decima operates globally with a primary focus on Europe and North America. Our network spans multiple continents.
Initial consultations are typically processed within 24 hours. Urgent matters receive immediate attention.
We strictly adhere to international legal standards. All our investigations are conducted within legal frameworks.
Pricing varies based on complexity. We offer transparent, customized quotes after initial consultation.
Request consultation
Secure communication channel for confidential intelligence and investigation needs