The Neill Group are based in Wellington with a strategic network of agents and associates covering every region of New Zealand. The Neill Group are New Zealand’s leading government licensed multi-service agency with over 30 years of experience providing private investigation, risk management, document serving, para-legal support and field services. 

The Neill Group has a nationwide network of highly experienced licensed private investigators, legal process servers, document servers, field agents, surveillance operatives, security specialists and repossession agents with the skill set and operational capability, second to none. 

Searching for a Wellington or New Zealand Private Investigator, Legal Process Server, Field Agent, Security Specialist or Risk Management Consultant? The Neill Group are New Zealand’s leading nationwide provider of private investigation, document serving, process serving, specialised security, risk management, para-legal support and field based services. 

The Neill Group offers clients the security of engaging with a service provider that possesses over 30 years of genuine experience, professional operating and governance structures and an overarching commitment to highly ethical practices. 

Throughout New Zealand, commercial entities, public organisations, government agencies and private clients utilise The Neill Group’s high level of expertise and proven track record of providing specialised services with the geographical reach that very few can match. 

Commercial & Private Investigations

The Neill Group’s licensed private investigators, contracted fraud examiners and surveillance operatives possess decades of experience investigating a range of matters from complex theft and fraud cases to suspected infidelity (unfaithful partners), along with criminal defence assignments, covert surveillance and the investigation of insurance claims. 

The scope of the commercial and private investigation services provided by The Neill Group in the greater Wellington region and throughout New Zealand also includes background checks and commercial due diligence. The Neill Group’s tracing experts have many years of experience locating defendants, witnesses, debtors and missing people along with hidden assets.

Risk Management

Our licensed security risk management consultants assist the commercial, government and private sectors with developing and implementing comprehensive security strategies to mitigate and manage risk to people, assets and information. Our consultants have the capability to assist organisations with the response to any emergency or critical incidents from natural disasters to attempted extortion. 

When the threat to business is particularly acute, The Neill Group will deploy a specialist with the experience and skill set to manage the risk to any individual or organisation throughout New Zealand or worldwide.

Specialised Security

Protective Services is a licensed New Zealand provider of private security, personal protection and risk management services. Protective Services is a business unit of The Neill Group with the operational capability beyond that of a typical security guard.

The contracted personal protection officers (internationally experienced and highly trained bodyguards) of Protective Services also provide close personal protection to visiting music artists, international celebrities, sports personalities, film talent, corporate executives, witnesses and high-net worth clients throughout New Zealand.

Nationwide Document & Legal Process Serving

The Neill Group are New Zealand’s leading authorised nationwide legal process serving, document serving and para-legal support agency with over 30 years of experience serving district court, high court, family court and employment court legal documents.

The Neill Group also serves dissolution of marriage (divorce proceedings), international legal process, trespass notices, subpoenas, demand notices, summonses and other time-critical documents across the Wellington region and throughout New Zealand.

Field Visits

The Neill Group’s provides a range of field based services in Wellington and throughout New Zealand, including: debtor interviews, asset audits, field visits, payment negotiations, address confirmations, discreet background checks, floor plan audits and the verification of financial data to lending institutions.

A personal visit by one of The Neill Group’s highly experienced and professional field agents has proven to achieve positive results when other methods have failed. Our field agents will visit the debtor or client to ensure compliance of contractual and legal obligations.

Para-Legal Support

The Neill Group provides a comprehensive range of para-legal support services from skip tracing, discreet background checks and property searches to the service of legal process, forensic examinations, handwriting analysis and interviewing people of interest across the greater Wellington region and throughout New Zealand.

The Neill Group assists legal counsel and legal defence teams in Wellington and throughout New Zealand with reviewing disclosures and crown prosecution files. Our private investigators also take statements, gather evidence and undertake detailed background inquiries on defendants, witnesses and people of interest. 

Asset Repossessions

The Neill Group are licensed by the Department of Justice to repossess assets in New Zealand. Our licensed repossession agents have a wealth of experience locating and recovering a range of assets, including: aircraft, marine vessels and motor vehicles in Wellington and throughout New Zealand. 

Commercial entities, public organisations, government agencies and private clients utilise The Neill Group’s high level of expertise and proven track record of providing specialised services with the geographical reach that few can match.

Training Programmes

At The Neill Group, we provide a range of personal safety and specialised security related training programmes, including: threat management, armed robbery awareness, managing bomb threats, detecting fraud, travel safety and loss prevention. 

Our training programmes and seminars are facilitated by highly qualified training consultants with decades of front line experience in the emergency services and military.


The Neill Group’s expertise stems from the experience of Dion Neill, a former member of the New Zealand defence forces and emergency services. Dion provides his clients with the benefit of over 30 years experience within the international security and private investigation arena. 

Dion was one of the founding directors of the original company, Wellington Investigations Limited, working alongside his fellow directors at Auckland Investigations (now known as ‘The Investigators’). Dion contracted his services to a number of licensed private investigation and security organisations prior to establishing The Neill Group and Protective Services. 

Dion is a foundation member of the New Zealand Institute of Professional Investigators Incorporated, Security Institute of New Zealand and the Institute of Management New Zealand. Dion is a former Certified Fraud Examiner with a number of internationally recognised qualifications in security, risk management and private investigations.

Dion featured on the popular television New Zealand series, ‘Private Investigators’ and interviewed regarding protecting high profile people in New Zealand. Dion regularly provides commentary to the media on security, personal safety, risk management and private investigation related matters.

Dion has spent a number of years conducting covert surveillance, managing undercover operations and hundreds of investigations. Dion was one of the first licensed private investigators in New Zealand to carry out assignments for the ACC, the New Zealand’s private accident and injury insurance agency.

In the 1980’s, Dion provided evidence in the High Court of New Zealand following a lengthy investigation focusing on a major theft operating within a large multi-national business, Dion’s evidence was key to the successful conviction of over 25 offenders and survived cross-examination by the late Mike Bungay QC who represented the offenders.

Government Licensing

Licence Number: 11-000153

The Neill Group is the trading name for Dion Neill who is an individual licence holder, licensed by the Ministry of Justice (Private Security Personnel Licensing Authority) as a private investigator, security consultant, repossession agent, personal guard, property guard, crowd controller and confidential document destruction agent. 

We do not employ staff, The Neill Group and Protective Services are supported by a nationwide network of contracted licensed private investigators, legal process servers, field agents, risk management consultants and security specialists. 

All contracted agents and associates are certified and licensed by the Ministry of Justice to ensure compliance with the Private Security Personnel and Private Investigators Act 2010.


Our contractors must sign a confidentiality agreement prior to deployment on any assignment. Trust is an important element of our relationship therefore our people understand the seriousness of breaching this agreement.

Our people have experience working within highly confidential and sensitive environments and always respect the privacy of our clients.  


The continued success of The Neill Group is a direct result of our approach to understanding the key drivers of value for our clients and the relentless need to exceed their expectations. 

The Neill Group vision is to be the partner of choice for the provision of specialised services to premier New Zealand and International organisations.  


  • Integrity
  • Professionalism  
  • Knowledge 
  • Performance

Professional Alliances 

The Neill Group can secure clients and assets anywhere in the world with assistance from strategic alliance partners with international private investigation, security and personal protection agencies.  

Protective Services and The Neill Group serve as the New Zealand alliance partner to a worldwide process servers network, Australian Professional Bodyguards (A Division of the Australian Protection and Intelligence Agency), Clearwater Special Projects (UK) and the Anvil Group (USA).

Areas of Service 

The Neill Group are based in Wellington with a strategic network of nationwide licensed private investigators, process servers, field agents, security specialists and repossession agents throughout the greater Wellington region along with agents in every area, 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, Wanganui, 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.