About Decima
Decima is a female-led private investigation firm based in Switzerland, providing discreet intelligence services for private and corporate clients. We provide cross-border intelligence that empowers corporations, law firms and private clients to act with confidence
The company is guided by a background in both private security in sensitive environments and public-sector experience supporting regional security projects for major international organisations. Operating globally and offering services in English, French, Spanish, Russian and Greek, Decima ensures clear communication and consistent results wherever an investigation leads.
Our journey of investigative excellence
Founded by women who understand complexity, Decima was built on determination and strategic insight.
Our founders saw a need for discreet, English-speaking investigative services in Geneva in order to serve clients worldwide, transforming challenging cases into clear, verifiable outcome
TurningIntelligence Into Strategic Advantage
We turn complex information into clear, useful intelligence.
Our mission is to provide accurate and ethical insights that help individuals,companies, insurers, and legal professionals make the right decisions and protect their interests.
Global reach – We handle investigations across borders with multilingual capabilities and a trusted international network. Whether the case is personal or corporate, we can work wherever information is needed.
Comprehensive solutions – We conduct human background checks, sensitive personal inquiries, corporate investigations, insurance verification, and support lawyers with reliable evidence and research.
Trusted expertise – Every case is managed with professionalism, legal compliance, and strict confidentiality to ensure dependable and discreet results.
Leading the future of global intelligence
Decima delivers high-end private investigation services grounded in Swiss discretion, methodological rigor, and modern intelligence practices. We combine OSINT expertise, human intelligence capabilities, and a trusted international network to obtain reliable,verifiable information for private and corporate clients.
Our mission is to provide intelligence that is not only ethically sourced but operationally useful—supporting decision-makers with clarity, accuracy, and strategic insight across borders.
Core values that define our work
Our values shape every assignment and ensure that the intelligence we deliver meets the highest professional standards. They are the foundation of Decima’s approach to responsible, results-driven investigations.
Integrity first – We operate with full respect for legal frameworks and ethical obligations, ensuring that every action is transparent, compliant, and defensible.
Precision always – Our investigations rely on rigorous methodology, verified data, and analytical discipline, providing clients with intelligence they can act on with confidence.
Discretion guaranteed – Confidentiality is central to everything we do; client identities, objectives, and findings remain protected at all times.
Global impact and reach
Our investigations extend across continents, delivering precise and reliable insights for clients in diverse industries and regions. Fluent in multiple languages—including Russian, Greek, French, English, and Spanish—we adapt to different cultures and local contexts to ensure the highest level of accuracy in every case.
Ethical intelligence without compromise
We believe that responsible investigation protects both truth and privacy. Every action we take is guided by strict ethical principles
and respect for individual rights, ensuring intelligence you can trust.
