NSI Global is an Australian-owned intelligence, counterintelligence, and risk advisory firm founded in 2004 by Navid Sobbi. Headquartered in Parramatta, Sydney, with offices in Double Bay, Melbourne, Canberra and internationally in Dubai, Singapore and London, we support government, defence, law enforcement, legal and corporate organisations in identifying, assessing and mitigating complex physical, digital and geopolitical threats.
About NSI Global
Trusted Advisors
For more than two decades, NSI Global has managed complex, sensitive assignments for organisations that cannot afford to be compromised. We deliver the clarity our clients need to remain secure, compliant and resilient in an era of escalating physical, digital and geopolitical risk.
Our specialists provide counterintelligence and technical surveillance countermeasures, digital forensics and incident response, geopolitical and travel intelligence, offensive cyber security, enhanced due diligence and litigation support. We work across the government, defence, law enforcement, legal and corporate sectors, protecting our clients from financial loss, reputational damage and the compromise of their people, premises and information.
Our Commitment
Our clients trust us with their most sensitive challenges. Confidentiality is the cornerstone of every relationship we hold, and as a matter of principle we do not identify our clients.
Our practitioners work continuously to stay ahead of illicit technology and tradecraft, investing in both our people and our technical capability. As threats evolve, so do our countermeasures — ensuring our clients always have access to current intelligence, forecasting and remediation.
For more than two decades, NSI Global has protected, served and informed organisations across Australia, the UAE and internationally. Our work spans counterintelligence, technical surveillance countermeasures, digital forensics, intelligence and risk advisory — delivered in-house by specialists, never outsourced.
Founder & Leadership
Navid Sobbi continues to lead NSI Global as Chief Executive Officer and remains personally active across the firm’s core practices, including counterintelligence, technical surveillance countermeasures (TSCM), digital forensics, geopolitical risk and intelligence advisory. Within NSI Global’s Digital Forensics practice, he also serves as lead examiner.
He holds a Bachelor of Laws, a Master of Intelligence and a Master of International Security, majoring in Digital Forensics and Counterterrorism. He remains personally involved in complex digital forensic examinations, expert reporting and court-related matters.
Navid has prepared expert forensic reports and given expert evidence in numerous matters before Australian state and federal courts. These include matters before District and Supreme Courts, the former Federal Circuit Court of Australia and Family Court of Australia, their successor the Federal Circuit and Family Court of Australia, the NSW Court of Appeal and the NSW Court of Criminal Appeal.
His forensic work has principally been undertaken on instructions from law firms, law enforcement agencies, state Offices of the Director of Public Prosecutions and the Office of the Commonwealth Director of Public Prosecutions. He has also accepted direct instructions from individual and corporate clients in appropriate matters. His reports document the evidence examined, methodology applied, limitations encountered, findings reached and basis for any opinions expressed, allowing the work to be independently scrutinised and, where required, tested under cross-examination.
Published decisions referring to his work include Peek v Wheatley [2025] NSWSC 554 and the subsequent appeal, Wheatley v Peek [2025] NSWCA 265. In that matter, Navid acted as a joint court-appointed digital forensic expert to examine an Apple iPhone, prepared an initial and supplementary report, and was cross-examined. Both judgments recorded that there was no dispute concerning his evidence.
His professional affiliations include:
- Member of the International Association of Law Enforcement Intelligence Analysts (IALEIA)
- Founding member of the IALEIA Australian Chapter
- Associate Member of the Law Society of New South Wales
- Member of the Association of International Risk Intelligence Professionals (AIRIP)
Navid also co-authored the chapter “Cyber Crime Applications” in Applications in Intelligence-Led Policing: Where Theory Meets Reality (2018; ISBN 9781720476542). The book examines the practical application of intelligence-led policing across Australia, Europe and North America and the role of intelligence analysis in preventative policing.
The wider NSI Global team includes practitioners drawn from intelligence, law, cybersecurity, engineering and specialist technical disciplines. Team members hold postgraduate and specialist qualifications across intelligence, law, digital forensics, cybersecurity and security risk management. Each engagement is assigned to practitioners with operational experience and technical expertise relevant to the matter.
How We Work
Every NSI Global engagement is delivered in-house by our own practitioners, never subcontracted, under a strict code of ethical, confidential and legal conduct.
Accreditations and sector affiliations relevant to government and defence engagements are provided to vetted clients under NDA.
One Practice, Across Every Discipline
NSI Global brings counterintelligence, technical surveillance countermeasures, digital forensics, intelligence and risk advisory together under one roof — led personally by our founder, Navid Sobbi, and delivered in-house by credentialed specialists, never subcontracted. Our accreditations and sector affiliations are provided to vetted government, defence and corporate clients under NDA.
Whether you’re facing a suspected compromise, a sensitive investigation, or a matter headed for court, contact NSI Global for a confidential discussion.
Contact NSI Global to take the next step toward resolving your concerns and strengthening your organisation for the future.