The Neill Group is a highly experienced nationwide agency with a strategic network of field agents, document servers, private investigators and security risk management specialists in every district and region of New Zealand, including Auckland, Wellington and Christchurch. Our associates are sourced from the military, intelligence and law enforcement community.

The Neill Group are one of New Zealand’s most experienced and longest established providers of:

• Nationwide Field Services

• Private Investigation Services

• Legal Process Serving (Document Serving)

• Professional Security, Personal Protection & Risk Management Services


The Neill Group are based in Wellington and founded by Dion Neill who commenced his career in the security and private investigation industry in 1987 as a contractor to Nationwide Investigation and Security Group (formallyNew Zealand Security Consultants and Investigations).

Dion served his industry “apprenticeship” under the guidance and supervision of highly respected security consultant and private investigator, Terry Mortensen. Dion is a former director of Wellington Investigations, he also contracted to a number of security and private investigation company’s prior to establishing Code 1, The Neill Group and Protective Services.

Dion is a former Certified Fraud Examiner (CFE), he also successfully achieved a number of recognised credentials in the area of security, risk management and investigations. Dion has been recognised for his contribution to raising the level of professionalism within the industry. Dion has published articles on personal safety, loss prevention, retail security and fraud prevention.

In the 1980’s, Dion was a member of a team employed to investigate a major organised theft syndicate operating within a national business. As a result of Dion’s evidence, over 25 offenders were convicted in the High Court (Dion survived cross examination by the late Mike Bungay QC). Dion was also one of the first licensed private investigators in New Zealand to carry out investigation assignments on behalf of the Accident Compensation Corporation (ACC).

Dion has spent decades conducting surveillance, managing undercover operations and focussing on the detection and investigation of dishonesty offences including theft and fraud investigations. Dion’s skills are used to recover hidden assets and to serve documents on evasive defendants.

Dion featured on the highly popular TVNZ series, ‘Private Investigators’ and the TVNZ Breakfast show regarding ‘protecting high profile people’ in New Zealand. The Neill Group has earned an exceptional reputation for providing service excellence and value through a strategic nationwide network of locally based agents and international alliance partners sourced exclusively from the military, intelligence and the law enforcement community.

The Neill Group works hard to mitigate and manage the risk to clients, their business, their assets, their reputation and their information. Our three core values are experience, commitment and integrity, these are the important qualities we demonstrate to every client regardless of their size or stature.

The Neill Group was established from a solid foundation of operational experience spanning over three decades across New Zealand and internationally. The Neill Group are industry leaders who are committed to providing the highest level of service to legal, commercial and selected private clients.

Government Licensing

The Neill Group and Protective Services are the trading entities of Dion Neill. Dion is government certified and licensed as a private investigator, security consultant, repossession agent, personal security guard, property security guard, crowd controller and confidential document destruction agent.

The Neill Group only engages contractors for private investigation, security and repossession assignments who are holders of licences issued by the Ministry of Justice – Private Security Personnel Licensing Authority. The Neill Group complies with the Private Security Personnel and Private Investigators Act 2010.

Professional Memberships

Dion Neill is a current member of:

  • World Association of Detectives
  • The Security Institute of New Zealand
  • New Zealand Credit & Finance Institute
  • New Zealand Institute of Professional Investigators (Foundation Member)

As a member of these respected professional associations, Dion receives immediate advice and assistance to support international legal process serving, private investigation and security related assignments. Dion has formed alliances and collaborative partnerships with highly professional licensed private investigators and security specialists operating throughout New Zealand and worldwide.

Client Confidentiality

Our agents must sign a confidentiality agreement prior to deployment on any operational assignment. Trust is an important element of our client relationships, our agents understand the seriousness of breaching this agreement. Our nationwide agents and international associates have experience working within confidential environments and respect the privacy of our clients.


1. The Neill Group provides detailed reports and documented evidence to district and high court standards.

2. The Neill Group has an exceptional nationwide reputation for locating hidden assets, evasive debtors and missing defendants or witnesses.

3. The Neill Group manages a sophisticated undercover (covert) programme that has successfully detected criminal offending in the workplace.

4. The Neill Group has access to highly qualified professionals who specialise in forensics, including document examination, polygraph testing and identity verification.

Private Investigations 

The Neill Group carries out private investigations in the greater Wellington region and across New Zealand using qualified and experienced licensed private investigators, certified fraud examiners and surveillance operatives. Private Investigators (commonly referred to as Private Detectives or PI’s) are typically employed by the private, commercial and governmental sectors.

Field Services 

A visit by a field agent has proven to be an effective way to re-engage with clients or debtors and to ensure compliance of contractual and legal obligations. The Neill Group provides nationwide field agent services to a number of commercial and government clients with exceptional feedback regarding the high-level execution of our nationwide professional services.

Dion Neill is licensed to carry out repossession services, he is the agent of choice for a growing number of New Zealand’s leading financial institutions and government agencies. The Neill Group only contracts licensed repossession agents for all repossessions and asset recovery assignments.

Please note: The Neill Group will not repossess chattels or personal property used as security on loan agreements or personal lending contracts.

Security Risk Management 

Protective Services works in collaborationwith The Neill Group to provide high-level security, personal protection and risk management. Protective Services provides clients with professional security solutions for private functions and public events along with the personal protection of international celebrities, film talent, sports teams, corporate executives and high-net worth individuals.

Document Serving (Legal Process Serving)

The Neill Group serves all New Zealand and international legal process, including dissolution of marriage documents (divorce proceedings), court proceedings and a diverse range of documents in the greater Wellington region and throughout New Zealand including: Auckland, Wellington and Christchurch.

The Neill Group are authorised to serve criminal documents pursuant to the Summary Proceedings Act 1957.

The Neill Group serves New Zealand and international legal process, including, but not limited to:

  • District Court Proceedings
  • Statutory Demand Notices
  • High Court Proceedings
  • Trespass Notices
  • Employment Proceedings
  • Pre-Possession Notices
  • Repossession Warrants
  • Divorce Proceedings
  • Family Court Proceedings
  • Witness Summonses
  • Appeal Court Proceedings
  • Protection Orders
  • Insolvency Documents
  • Court Subpoenas
  • Discovery Warrants
  • Property Law Act Notices
  • Court Enforced Judgments
  • Orders for Examination
  • Confidential Documents
  • Parental Orders
  • Bankruptcy Notices
  • Personal Documents
  • Employment Documents
  • Infringement Notices
  • Tenancy Orders
  • Eviction Notices
  • International Legal Process
  • Sensitive Documents
  • Charging Documents for Enforcement Agencies

New Zealand & International Services

The Neill Group are based in Wellington with a strategic nationwide network of contracted licensed private investigators, security specialists, field agents, repossession agents and legal process servers (document servers) in 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, 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.