New Zealand's most experienced field agents, process servers, security consultants, private investigators and repossession agents.

Unmatched results.  Unmatched service.  Unmatched experience.

We have spent more than three decades establishing an exceptional reputation in the security, investigation, legal support and field services industry. Everything we do is supported by an unparalleled level of expertise and operational experience.

Government Licensed Since 1987.

The Neill Group (TNG) is the approved trading name of Dion Neill (licence number: 11-000153). The Neill Group (TNG) is licensed by the Private Security Personnel Licensing Authority as personal guards, property
guards, security consultants, crowd controllers, monitoring officers, private investigators, repossession agents and confidential document destruction agents. The Neill Group (TNG) complies with the New Zealand Private Security Personnel and Private Investigators Act 2010.

The Neill Group operate to the New Zealand and Australian Security Risk Management framework (AS/NZS ISO 31000:2009) and is aligned to the New Zealand Government’s Protective Security Requirements (PSR). We have implemented a recognised quality assurance programme to provide the framework for business continuity, operational capability and management requirements. Our quality assurance framework provides an additional layer of business transparency and accountability to our clients.

International Alliance Partners

We have an established local and international network of alliance partners who are experts in the security, intelligence and 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 Support

We are committed to paying it forward by supporting community based charities, including St John, Life Flight, Starship, GoodSAM, New Zealand Police Dog Trust and Wellington Free Ambulance.

Professional Memberships

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

Our nationwide professional services are extensive, including but not limited to:


As one of New Zealand’s leading private investigation organisations, we have licensed private investigators available in Auckland, Wellington, Christchurch and throughout New Zealand. They are always ready to help private, commercial and government clients to investigate with challenges involving dishonesty and personal issues.

Our qualified former police detectives and surveillance specialists from the defence forces, law enforcement and intelligence sectors are discreet, resourceful and committed to achieving the best possible outcome. You can trust us to work quickly and cost-effectively towards a resolution.

Field Services 

A personal visit by a professional field agent or licensed repossession agent can ensure the compliance with legal or contractual obligations. Our nationwide field agents team verify information, recover assets and have the ability to detect fraud or identity theft.

We operate with discretion and care in sensitive environments that require a high degree of diplomacy and professionalism, to minimise brand or reputational damage. Our field agents and licensed repossession agents possess the experience to de-escalate conflict and negotiate a solution that works for you.

Security Risk Management

We provide a security consulting and risk management service to clients throughout New Zealand. Our associates at Prosec Solutions Limited (Prosec) is a licensed security company with a team of professionally trained security personnel. Prosec are not only providers of security guards, the company can provide specialised security (personal bodyguard) for executives, celebrities, film talent and music artists.

Prosec will provide a security solution to safeguard your people, assets, events and infrastructure. For security and bodyguard services, click here to visit the website of Prosec.

Process Serving (Legal Document Serving)

Wondering how to serve someone court proceedings or legal documents? We have been serving legal documents and court proceedings in Wellington and throughout New Zealand since 1987. The Neill Group (TNG) operates New Zealand’s largest network of process servers (legal document servers). Our process servers will provide you with updates using real time technology, live from the field.

We facilitate the cost-effective nationwide serving of court proceedings and legal documents, including summonses, demand notices, trespass notices and dissolution of marriage (divorce) applications. With time sensitive legal documents and a fast approaching court date, you need an experienced process serving team that you can rely on, The Neill Group (TNG) should be your first call!

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 providing executive protection.

Dion was certified as a fraud examiner, and awarded a Certificate in Investigation Skills from the Royal New Zealand Police College, Dion achieved a Diploma in Security and Risk Management along with a number of other credentials. Dion is a qualified facilitator and conflict management instructor, he was one of the first NZQA qualified instructors to facilitate the national certificate in security.

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 (New York & Los Angeles, USA).

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 - Touring Sports Team in South Africa.

1989: Established Kapiti Security (Later sold 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.

Security Consultants – Security Risk Management

We have been protecting brands, people and reputations since 1987. Contact us for security consulting, high-level security, personal protection and risk management.
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Private Investigators – Private Investigations

Do you have a personal or business concern? Contact us for discreet, confidential and cost-effective private investigations throughout New Zealand.
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Process Servers – Legal Document Serving

Our team of nationwide process servers have over three decades of experience serving legal documents, court proceedings and dissolution of marriage applications.
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Field Agents – Field Services & Asset Recoveries

The Neill Group (TNG) are licensed repossession agents, we can assist with audits, tracing, field visits, debtor interviews, asset recoveries and vehicle repossessions.
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