Serving Auckland, Wellington, Christchurch & New Zealand-Wide Since 1987!
Local Knowledge. Nationwide Coverage.
he Neill Group (TNG) is a 100% New Zealand owned and operated agency specialising in security, tracing, private investigations, legal document serving, and field based services including audits, field visits, asset recoveries and motor vehicle repossessions. Established by Dion Neill, The Neill Group (TNG) delivers exceptional results to private, commercial, and government clients.
With regional based support offices located in Auckland, Wellington, and Christchurch, The Neill Group (TNG) manages New Zealand’s largest experienced team of field agents, process servers, security providers, private investigators and, repossession agents. Our operational excellence is driven by a nationwide team recruited from the military, law enforcement, and intelligence sectors.
Core Objectives
- Clients for Life: We aim to build enduring partnerships by consistently exceeding expectations.
- Market Leadership: We strive to be recognized as the absolute premier service provider in our industry.
Governance & Social Sustainability
Socially Sustainable Pioneer: TNG is the first provider in our market to integrate a dedicated social and moral layer of ethical practices directly into our business model.
Health & Safety Compliance: We maintain absolute compliance with all WorkSafe New Zealand regulations to ensure safe operating environments.
Uncompromising Privacy: We strictly guard client confidentiality and never disclose private, personal, or proprietary information.
Commitments
Partnership: Building long-term, cooperative client relationships.
Diversity: Embracing cultural diversity at every operational level.
Respect: Engaging professionally, transparently, and respectfully at all times.
Safety: Cultivating a secure and healthy workspace for our personnel.
Sustainability: Responsibly managing and mitigating our environmental footprint.
Code of Ethics & Professional Standards
Integrity: We operate with total compliance, safety, and alignment with professional standards.
Environment: We maintain a strict policy regarding the eco-friendly use of products and business supplies.
Community Support
"Paying it forward" is embedded in our DNA. We proudly support vital New Zealand charities and non-profits, including: St John, Life Flight, Starship Foundation, Everybody Eats, Women’s Refuge, NZ Police Dog Trust, Variety Children's Charity, I Am Hope Foundation, and Wellington Free Ambulance. Dion is committed to supporting our community as a volunteer first responder, PTSD/trauma counsellor, CPR instructor and self defence instructor.
Transparency
Fact-Based Reporting: Our investigative findings are presented in an entirely unbiased, objective manner. We do not omit material information or evidence.
Conflict of Interest Protocols: To protect our clients, we enforce a strict policy against knowingly accepting any assignments that conflict with past or existing client engagements.
Established in 1987, The Neill Group (TNG) are New Zealand's most trusted nationwide providers of security, tracing, private investigations, legal document serving and field based services.
Introducing Dion Neill
Recognition
Professional Credentials
Investigation Certifications: Certificate in Investigation Skills (Royal New Zealand Police College), Certificate in Professional Investigations (C4 Group), Former Certified Fraud Examiner (CFE - Association of Certified Fraud Examiners).
Security, Investigation & Risk Management Certifications: Level IV Certificate in Security Operations (Australia) & Diploma of Security and Risk Management (Australia), NZQA National Certificate in Security - Level IV (Including Personal Protection), Certificate in Providing Executive Protection (USA), Executive Protection (Alan Kinnane & Associates), Certificate in Professional Investigations (C4 Group).
Finalists - New Zealand & Global Security Awards
New Zealand Security Awards: Finalist in 2021 and 2024 for Outstanding New Product or Service of the Year.
Outstanding Security Performance Awards (OSPAs): Finalist in 2022, 2023, and 2024 across categories including Outstanding Contract Security Director, Outstanding Security Consultant, and Outstanding New Security Product.
Media Features
Gone without a trace? Tracing missing people
Repossessions & Repossession Agents
Catching Cheaters! Infidelity Investigations
Click here to view our YouTube Channel - New Zealand Private Investigators
Latest Technology
We use the latest GPS technology, applications and software. Our clients have access to our secure online portal to allow complete transparency.
Trained People
Our team throughout New Zealand are professionally trained and sourced from the defence forces, intelligence and law enforcement sectors.
Unequalled Experience
Founded in 1987 by Dion Neill, we are committed to delivering exceptional results and service to private, commercial and government clients.
Global Resources
We have unlimited access to international resources including security, intelligence, investigation and risk management specialists.
Nationwide Services
We have established offices in Auckland, Wellington and Christchurch to support our regional based team operating from Kaitaia to Bluff.
Government Licensed
We are licensed by the Private Security Personnel Licensing Authority as security providers, private investigators and repossession agents.

