U.S. Investigations • International Intelligence
Corporate investigations and intelligence for decisions where facts matter.
Nerosi Security provides lawful, discreet investigative services in the United States and coordinates advanced international intelligence capabilities through its authorized partnership with Interdiligence.
Washington-based
Led by a Washington-licensed Private Investigator
Client-authorized engagements
About Nerosi Security
Washington-based investigation built for corporate decision-makers.
Nerosi Security is a Washington-based investigative company serving corporations, insurers, attorneys, employers, healthcare organizations, executives, investors, and other authorized clients.
Led by a Washington State-licensed Private Investigator, we provide discreet, lawful, and fact-driven investigative support tailored to the client’s objectives. Our work is structured around careful fact development, professional documentation, and clear reporting that supports business, legal, compliance, claims, and risk-management decisions.
Who We Serve
Professional support for consequential matters.
Engagements are designed for organizations and professionals who require reliable information before taking action.
Advanced Corporate Intelligence
International capability through Interdiligence.
For matters requiring broader geographic reach or specialized analytical capability, Nerosi Security works as an Authorized Partner of Interdiligence, an international strategic intelligence and risk consulting organization established in 2015.

International strategic intelligence and risk consulting

Multidisciplinary and multilingual research


Field research in relevant international markets

Structured intelligence for senior decision-makers
Interdiligence Experience:
Established in 2015, Interdiligence brings more than a decade of international experience supporting corporations, executives, investors, financial institutions, and public-sector decision-makers in complex and high-stakes environments. Its capabilities span strategic intelligence, corporate due diligence, competitive intelligence, business risk consulting, stakeholder analysis, and advanced network data analysis. By combining multidisciplinary expertise, multilingual field research, public-record intelligence, and big-data analytics, Interdiligence identifies hidden risks, evaluates companies and key individuals, maps relationships and influence structures, and reveals opportunities that may materially affect an organization's position. The result is confidential, decision-ready intelligence that helps corporate leaders strengthen governance, evaluate transactions and partnerships, enter new markets, manage reputational and operational risk, and make consequential decisions with greater clarity and confidence.
Four Questions
Four intelligence solutions. One strategic advantage.
Each product addresses a different layer of business risk and strategic decision-making
Standards & Confidentiality
Professional handling for sensitive corporate matters.
Nerosi Security applies confidentiality, proportionality, careful documentation, and professional reporting to every engagement. Interdiligence’s specialized intelligence work is supported by its certified quality and information-security management systems.
Nerosi Security

Lawful, client-authorized investigative services
Confidentiality

Discreet handling of sensitive matters
Interdiligence

ISO 9001 certified quality management
Interdiligence

ISO/IEC 27001 certified information security






