The Neill Group (TNG) - Established 1987.

Why choose us? 
  • Our people are sourced exclusively from the defence forces, intelligence and law enforcement sector.
  • We are widely respected for our tenacity, knowledge and commitment to providing exceptional results.
  • Our capabilities are extensive; we manage hundreds of security, investigation and field assignments every year.
  • We have a proven track record of results that extends over three decades with industry-recognised credentials.
  • Our team members are vetted, Police-approved and government licensed; we carry out extensive background checks.
  • We use a recognised quality management system to ensure continuous innovation, improvement and service delivery.
  • We use technology, informants and intelligence sources throughout New Zealand and worldwide that are second to none.
  • Our experienced nationwide process serving team will serve your documents in a professional manner to withstand any legal scrutiny.

The Neill Group (TNG) is owned and operated by Dion Neill. He is a former member of the defence forces and emergency services. In 1987, Dion commenced training with former police officers, military personnel, and intelligence specialists. In 2003, Dion featured on the popular television series, ‘Private Investigators’. He was also interviewed on TVNZ Breakfast regarding protecting high profile people.

Dion was one of the first private investigators to carry out assignments for the Accident Compensation Corporation (ACC). He provided evidence in the High Court relating to a lengthy theft investigation. Dion’s evidence was instrumental in securing a number of convictions. Dion has published articles on identifying fraud, workplace theft, personal safety and executive protection.

The Neill Group (TNG) have over 35 years of experience delivering a range of services, including field visits, asset recovery, process serving, private investigations and security risk management. We have carefully selected our team members for their expertise, resilience, and unique skill set. Our people act within the law at all times, and are governed by a strict code of ethics and professional standards.

5 Facts
  1. Dion Neill is one of New Zealand’s longest serving government licensed private investigators and security professionals.
  2. We have invested in the latest GPS technology and file management software to provide clients with real time updates from the field.
  3. Our licensed private investigators apply investigation methodologies based on industry recognised best practice and robust operating procedures.
  4. We engage associates throughout New Zealand who are sourced exclusively from the security, defence forces, law enforcement and intelligence sectors.
  5. The Neill Group (TNG) operates New Zealand’s largest network of field agents, process servers, private investigators, security professionals and repossession agents.

Every team member contributes to a significant resource of collective experience gained from the defence forces, intelligence, and law enforcement sector. The Neill Group (TNG) operates in accordance with the New Zealand and Australian Security Risk Management framework and is aligned to the New Zealand Government’s Protective Security Requirements.

Alliance Partners

We have an established local and international network of alliance partners who are experts in the security, intelligence and private investigation sectors.

Privacy & Confidentiality

Trust is an important element of our client relationships. Our agents and associates must sign a confidentiality agreement prior to deployment on any operational assignment.

Community Engagement

Dion Neill is a proud recipient of the New Zealand defence forces service medal, St John service medal and long service award from the Wellington Free Ambulance. He has also been recognised for his contribution as a community-based volunteer first responder, patroller and educator (CPR instructor).

The Neill Group (TNG) supports St John, GoodSAM, Life Flight Trust, Starship Children’s Hospital, Wellington Free Ambulance and the New Zealand Police Dog Trust.

Professional Memberships

We support our industry in New Zealand and worldwide. We are current members of ASIS International, World Association of Detectives (WAD) and New Zealand Security Association (NZSA).

Licensing & Compliance

The Neill Group (TNG) are approved and licensed by the Private Security Personnel Licensing Authority (PSPLA) as security consultants, crowd controllers, monitoring officers, private investigators, repossession agents, personal security guards, property security guards and confidential document destruction agents.

Finalists – 2021 New Zealand Security Awards, 2022 Outstanding Security Performance Awards (OSPAS) & 2023 Outstanding Security Performance Awards (OSPAS).

Introducing Dion Neill, founder and PSPLA licence holder.

The Neill Group (TNG) is owned and operated by Dion Neill. He is a former member of the defence forces and emergency services. In 1987, Dion commenced training with former police officers, military personnel, and intelligence specialists. In 2003, Dion featured on the popular television series, ‘Private Investigators’. He was also interviewed on TVNZ Breakfast regarding protecting high profile people.

Dion was one of the first private investigators to carry out assignments for the Accident Compensation Corporation (ACC). He provided evidence in the High Court relating to a lengthy theft investigation. Dion’s evidence was instrumental in securing a number of convictions. Dion has published articles on identifying fraud, workplace theft, personal safety and executive protection.

Selected highlights from Dion Neill's career:

2023: Finalist - Outstanding Security Performance Awards (OSPAs).

2022: Finalist - Outstanding Security Performance Awards (OSPAs).

2022: Security Consultant - ACCOR Hotel Group.

2021: Finalist - New Zealand Security Industry Awards.

2021/2022: Board Member - Platform 4 Group (P4G Security).

2021: Qualified Facilitator - Conflict Management (Skills NZ).

2021: Security Manager - Miss Taylor, Dancing Pictures & NZ Film Commission (Film Productions).

2020: Security Provider - A24 & Apple TV (Productions: 'X', Pearl & Mr. Corman).

2020/2022: Security Provider - Avalon Film & Television Studios.

2020/2022: Security Provider & Security Consultant - Lane Street Studios.

2008/2009: Security Consultant - Animal Health Board (1080 Programme).

2004: Personal Protection Officer - Tony Hawk, World Champion Skateboarder.

2004 - 2022: Security Driver - Eminem, Sir Elton John & Guns N' Roses.

2004: Instructor - Wellington Door Staff Association (NZ Hospitality Industry)

2003: Security Manager - The Hobbit (Private VIP Event).

2001: Security Team & Security Driver (Film Talent) - Lord of the Rings World Premier.

2001 - 2021: Founder & Managing Director - Protective Services (Acquired by Platform 4 Group).

2001: Achieved a Diploma of Security & Risk Management (Australia).

2000: Achieved Certificate in Security Operations - Level IV (Australia).

2000: Achieved National Certificate in Security - Level IV (Including Personal Protection).

2000: Personal Protection Officer - Sir Peter Jackson (Olympic Torch Relay).

2000: Executive Care & Personal Protection Training (USA & Australia).

1999: Achieved Certificate in Executive Protection - Alan Kinnane & Associates.

1999: Foundation Instructor - National Certificate in Security.

1999: Registered NZQA Workplace Assessor - Security Industry.

1999: Personal Protection Officer - Jamie Oliver, Celebrity Chef.

1997: Awarded Certificate in Investigation Skills - RNZPC.

1997: Achieved Certified Fraud Examiner (CFE) Qualification.

1996: Security Manager/Personal Protection Officer - National Sports Team, South Africa.

1989: Established TNT Security (Sold business with 200 + clients).

1989: Key Witness as a Private Investigator - High Court of New Zealand.

1987: Obtained Certificate of Approval - Security Guard & Private Investigator.

1987: Commenced Formal Training - Security Consultant & Private Investigator.

Tracing Specialists – Worldwide Skip Tracing

Our experienced tracing specialists can locate missing people including debtors, defendants, witnesses, birth parents and family members.
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Security Guards – Professional Security

Not just security guards! Our team provide high-level security to clients including executive care, close personal protection and security risk management.
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Private Investigators – Private Investigations

Ranked #1 private investigators by consumer website, top reviews. We provide surveillance, private investigation and intelligence gathering services.
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Process Servers – Legal Document Serving

New Zealand process servers since 1987. Our trained process servers will serve your legal documents and court proceedings from Kaitaia to Bluff.
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Field Agents – Nationwide Field Services

Our field based team carry out field visits, debtor interviews, identity verifications, floor plan audits, asset recoveries and motor vehicle repossessions.
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