We have spent more than three decades establishing a robust reputation in our market. Everything we do is supported by an unparalleled level of professional expertise and operational experience.

The Neill Group (TNG) operates New Zealand’s largest network of field agents, security specialists, private investigators, repossession agents and process servers (legal document servers). We are committed to operating with the highest level of ethics, service and professional standards.

Mission statement 

Our mission is to generate value for our clients through the delivery of service focused and results driven solutions. The continued success of The Neill Group (TNG) is a direct result of understanding our clients needs and our pursuit of service excellence. As a client-centric business we have two goals:

  1. To retain each client as ‘a client for life’.
  2. To be recognised as the premier service provider in our market.
Standards of conduct     
  • Our work always complies with the law.
  • We act with integrity and adhere to the highest ethical standards.
  • We seek publicity only where it is an advantage to our business.

We will not disclose any confidential information without the consent of our clients.

Conflicts of interest

We will not knowingly accept any assignments that are in direct conflict of interest with past or existing clients.

  • Our findings will be presented in an unbiased and fact-based manner.
  • We will not omit any evidence or material information.
Government licensing

The Neill Group (TNG) is the approved trading name of Dion Neill. The Neill Group (TNG) are government licensed by the Private Security Personnel Licensing Authority (PSPLA) as Private Investigators, Repossession Agents, Personal Guards, Property Guards, Crowd Controllers, Security Consultants, Monitoring Officers and Confidential Document Destruction Agents.

Community and the environment
  • We are committed to building strong partnerships.
  • We embrace and respect cultural diversity.
  • Our people interact in a respectful and professional manner.
  • We nurture a safe and secure working environment.
  • Client satisfaction is at the centre of everything we do.
  • We responsibly manage the environmental impact of our business.
  • We make a positive contribution to the communities in which we operate.

We support a number of charitable and community based organisations including:

  • St John
  • Everybody Eats
  • Life Flight Trust
  • Women’s Refuge
  • NZ Police Dog Trust
  • Wellington Free Ambulance

In addition, The Neill Group (TNG) partner with a number of law firms on a pro-bono basis to support disadvantaged people. Such partnerships assist us in effectively contributing to the community, to the benefit of those most vulnerable.

  1. We are widely respected for our tenacity, knowledge and commitment to providing exceptional results.
  2. Our capabilities are extensive; we manage hundreds of security, investigation and field assignments every year.
  3. We have a proven track record of results that extends over three decades with industry-recognised credentials.
  4. We use a recognised quality management system to ensure continuous innovation, improvement and service delivery.
  5. We use technology, informants and intelligence sources throughout New Zealand and worldwide that are second to none.
Introducing Dion Neill

Our expertise is founded on the experience and knowledge of Dion Neill, a former member of the New Zealand emergency services and defence forces. Dion provides our clients with the benefit of over 35+ years of security risk management, private investigation and paralegal experience.

Dion was certified as a fraud examiner and gained a Certificate in Investigation Skills from the private training establishment at the Royal New Zealand Police College. Dion has achieved a Diploma of Security and Risk Management (Australia), along with a number of other internationally recognised credentials.

Dion has spent a number of years conducting covert surveillance, managing undercover operations and handling hundreds of investigations. He was one of the first licensed private investigators in New Zealand to carry out assignments for ACC and other government agencies.

In the 1980’s, Dion provided evidence in the High Court of New Zealand following a lengthy investigation focusing on significant theft within a large multi-national business. Dion’s evidence was key to the successful conviction of over 20 defendants in the High Court of New Zealand.

Dion featured on the television series, ‘Private Investigators’. He was also interviewed on TVNZ Breakfast regarding protecting high profile people. Dion has published articles on theft, fraud, personal safety and loss prevention.

One of New Zealand’s most experienced operatives

In the 1980s, Dion served his apprenticeship with a team of qualified former detectives, police officers, military personnel and government intelligence officers. He was trained in every aspect of conducting investigations, surveillance and gathering intelligence. Since then he has clocked up years of experience with surveillance, managing undercover operations and investigating dishonesty offences. Dion is a strong advocate for raising the level of professionalism and service delivery within the security industry.

Here are selected highlights from Dion’s career:
  • As a key witness in a high-profile theft case, Dion withstood lengthy cross-examination in the High Court by the late Mike Bungay QC. Dion’s evidence resulted in over 20 convictions.
  • When New Zealand government insurer, ACC needed to take fraud investigation to a higher level, Dion was one of the first licensed private investigators in New Zealand they selected.
  • After providing personal protection services for a prominent business owner who received threats of violence, Dion went on to launch his high-level security company Protective Services.
  • Dion personally managed the security for a sports team representing New Zealand in South Africa.
  • Dion and his associates have worked as private security contractors in the world’s most volatile regions.
Security management on a global scale

Dion has worked as a senior manager with Group 4 Security (known globally as G4S). In this role he was responsible for leading a national security team and management of key security contracts. As one of the first NZQA tutors to facilitate the National Certificate in Security, Dion is a certified instructor for mandatory training required to obtain a security licence or certificate of approval.

A speciality of Dion’s is providing security services to the film industry. He regularly provides guarding, security consulting and risk management services to film production companies working in New Zealand and other parts of the world. This work includes protecting assets, film talent and intellectual property.

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

The Neill Group (TNG) have a strategic network of field agents, process servers, private investigators, security specialists and repossession agents that covers every district and region of New Zealand, including: Northland, Whangarei, Auckland, Wellsford, Warkworth, Orewa, Albany, Takapuna, Mangere, Manurewa, Pukekohe, Coromandel Peninsular, Thames, Waihi, Whangamata, Whitianga, Waikato, Hamilton, Te Awamutu, Cambridge, Huntly, Morrinsville, Matamata, Putaruru, Tokoroa, Otorohanga, King Country, Taumarunui, Te Kuiti, Waitomo, Bay of Plenty, Tauranga, Te Puke, Whakatane, Kawerau, Opotiki, Rotorua, Taupo, Turangi, Murupara, East Cape, Gisborne, Tolaga Bay, Tokomaru Bay, Ruatoria, Te Kaha, Taranaki, Whanganui, New Plymouth, Stratford, Hawera, Waitara, Inglewood, Manawatu, National Park, Waiouru, Taihape, Palmerston North, Marton, Bulls, Feilding, Ashhurst, Foxton, Horowhenua, Levin, Otaki, Kapiti, Waikanae, Paraparaumu, Paekakariki, Wellington, Plimmerton, Porirua, Tawa, Johnsonville, Upper Hutt, Lower Hutt, Wainuiomata, Hawkes Bay, Wairoa, Napier, Hastings, Havelock, Waipukurau, Dannevirke, Wairarapa: Featherston, Pahiatua, Masterton, Carterton, Greytown, Tasman, Nelson, Blenheim, Picton, Motueka, West Coast, Westport, Greymouth, Hokitika, Wanaka, Queenstown, Twizel, Alexander, Te Anau, Canterbury, Christchurch, Kaikoura, Ashburton, Southland, Timaru, Oamaru, Dunedin, Invercargill, Balclutha, Mossburn, Gore.

Tracing Specialists – Worldwide Tracing

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

We are more than security guard providers, contact us about our high-level security, close personal protection and risk management services.
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Private Investigators – Private Investigations

Ranked #1 Private Investigators by Top Reviews. Contact us for private investigations, surveillance and intelligence gathering services.
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Process Servers – Legal Document Serving

Dion Neill served his first legal document in 1987! You can trust our process servers to professionally serve your legal documents anywhere in New Zealand.
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Field Agents – Asset Recovery & 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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