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

The Nerosi Approach

Clear facts. Disciplined analysis. Decision-ready reporting.

Every engagement begins with a defined business objective and an appropriate, lawful scope.

Define
Objectives and scope
Investigate
Relevant facts
Analyze
Risk and context
Report
Actionable findings
The Nerosi Approach

Clear facts. Disciplined analysis. Decision-ready reporting.

Every engagement begins with a defined business objective and an appropriate, lawful scope.

Define
Objectives and scope
Investigate
Relevant facts
Analyze
Risk and context
Report
Actionable findings

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.

Lawful Scope

Every assignment is client-authorized and appropriately defined.

Lawful Scope

Every assignment is client-authorized and appropriately defined.

Discretion

Sensitive matters are handled with confidentiality and professional judgment.

Discretion

Sensitive matters are handled with confidentiality and professional judgment.

Relevant Facts

Investigative activity remains focused on the decision or concern at issue.

Relevant Facts

Investigative activity remains focused on the decision or concern at issue.

Clear Reporting

Findings are documented for review by authorized decision-makers.

Clear Reporting

Findings are documented for review by authorized decision-makers.

Who We Serve

Professional support for consequential matters.


Engagements are designed for organizations and professionals who require reliable information before taking action.

Corporate Matters

Sensitive fact development

Corporate Matters

Sensitive fact development

Fraud Investigations

Evidence-focused inquiries

Fraud Investigations

Evidence-focused inquiries

Workplace Matters

Internal investigative support

Workplace Matters

Internal investigative support

Background Risk

Research and verification

Background Risk

Research and verification

Retained Support

Priority investigative access

Retained Support

Priority investigative access

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

Corporate, financial, and network analysis

Controlled executive communication

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

Who is the individual?

Smart Persona™

Who is the individual?

Smart Persona™

What is really behind the company?

Nexus360™

What is really behind the company?

Nexus360™

How do the competitors operate?

CompetEdge™

How do the competitors operate?

CompetEdge™

Who influences the decision?

Stakeholder360™

Who influences the decision?

Stakeholder360™

Who influences the decision?

Stakeholder360™

Who influences the decision?

Stakeholder360™

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

Grid
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Confidential Consultation

Speak With an Investigator

Contact Nerosi Security for discreet investigative support in Washington and coordinated corporate intelligence services across the United States and international markets.

Grid

Confidential Consultation

Speak With an Investigator

Contact Nerosi Security for discreet investigative support in Washington and coordinated corporate intelligence services across the United States and international markets.

Grid
Cta Icon
Cta Icon

Confidential Consultation

Speak With an Investigator

Contact Nerosi Security for discreet investigative support in Washington and coordinated corporate intelligence services across the United States and international markets.

Logo

WA Licensed Private Investigative Agency | No. 26018113

Cristian Mazilu | Founder & Principal Investigator

All inquiries and engagements are handled with strict confidentiality, discretion, and professional care.

Nerosi Security manages the U.S. client relationship and engagement, while Interdiligence provides specialized international corporate intelligence and analysis.

© Copyright 2026, All Rights Reserved by Nerosisecurity

Logo

WA Licensed Private Investigative Agency | No. 26018113

Cristian Mazilu | Founder & Principal Investigator

All inquiries and engagements are handled with strict confidentiality, discretion, and professional care.

Nerosi Security manages the U.S. client relationship and engagement, while Interdiligence provides specialized international corporate intelligence and analysis.

© Copyright 2026, All Rights Reserved by Nerosisecurity

Logo

WA Licensed Private Investigative Agency | No. 26018113

Cristian Mazilu | Founder & Principal Investigator

All inquiries and engagements are handled with strict confidentiality, discretion, and professional care.

Nerosi Security manages the U.S. client relationship and engagement, while Interdiligence provides specialized international corporate intelligence and analysis.

© Copyright 2026, All Rights Reserved by Nerosisecurity