Service Focused & Results Driven Since 1987.

Welcome to The Neill Group (TNG), we specialise in tracing, field visits, process serving, asset recoveries (repossessions), professional security, covert surveillance, floor plan audits, security consulting, risk management, private investigations and intelligence gathering.

Are you searching for a cost-effective and professional field agent, process server, security provider, private investigator or repossession agent? The Neill Group (TNG) is one of New Zealand’s leading provider of paralegal support, field services, professional security, risk management and private investigations.

We operate the largest network of field agents, process servers, security specialists, repossession agents and private investigators in New Zealand, extending from Kaitaia to Bluff. We also have an extensive global network of contacts, resources and informants to provide solutions to particularly complex problems.

Using our significant knowledge of people, locations, organisations and information caches, we are able to conduct effective security, investigations and field assignments anywhere in the country. Our carefully selected people act within the law at all times, and are governed by a strict code of ethics and professional standards.

Each team member contributes to a huge resource of collective experience from the defence forces, intelligence and law enforcement sector. All of our people are professionally trained, police vetted and government licensed. They have been carefully selected for their proven resilience, unique skill sets and operational expertise.

We offer our private, commercial and government clients a genuine commitment to delivering exceptional service with integrity and the highest level of professionalism in Auckland, Wellington, Christchurch and throughout New Zealand.

Why choose us?

  • Our highly skilled people are sourced exclusively from the defence forces, intelligence and law enforcement sector.
  • We operate New Zealand’s largest network of field agents, process servers, private investigators, repossession agents and security specialists.
  • Our experienced nationwide process serving team will serve your documents in a professional manner to withstand any legal scrutiny.
  • We are widely respected for our tenacity, knowledge and commitment to providing exceptional results.
  • Our capabilities are extensive; we manage hundreds of nationwide security, investigations and field assignments every year.
  • We have a proven track record that extends over three decades with industry-recognised credentials.
  • Our team members are vetted, Police-approved and government licensed; we carry out extensive background and criminal history checks.
  • We use technology, informants and intelligence sources throughout New Zealand and worldwide that are second to none.
  • We provide the most competitive fee structure for process serving throughout New Zealand with special rates for significant volumes.
  • The Neill Group (TNG) uses an internationally recognised quality management system to ensure continuous innovation, improvement and service delivery.
  • We are New Zealand’s most experienced process servers; we know how to serve documents and legal process in accordance with the Courts rules of service.
  • The Neill Group (TNG) are licensed by the Private Security Personnel Licensing Authority (PSPLA) as security providers, private investigators and repossession agents.


Finalists – 2024 Outstanding Security Performance Awards (OSPAs)

Finalists – 2023 Outstanding Security Performance Awards (OSPAs)

Finalists – 2022 Outstanding Security Performance Awards (OSPAs)

Finalists – 2021 New Zealand Security Awards

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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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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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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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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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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Why use The Neill Group (TNG)?

Latest Technology

Our team of professionals use the latest technology to provide live updates from the field directly to our clients. We also use GPS technology to keep our team safe and secure.

Highly-Skilled People

We source are people from the defence forces, intelligence and law enforcement sector. Our carefully selected people are highly-skilled and professionally trained.

Unequalled Experience

Since 1987, we have remained committed to our stringent compliance, professional code of ethics and reputation for delivering results and service that is second to none.

International Resources

Dion Neill is a member of ASIS International, New Zealand Security Association and World Association of Detectives. We have unlimited access to local and international resources.

Government Licensed

The Neill Group (TNG) are licensed by the Private Security Personnel Licensing Authority (PSPLA) as private investigators, security providers and repossession agents.

Nationwide Coverage

We are widely recognised as a leading nationwide provider of private investigation, paralegal support, professional security, risk management and general field services.

Dion provided security to me and my crew on Courtney Place while filming the “On Booze” doco. Lots of drunken revellers, he kept us free to film!

Patrick (Paddy) Gower – New Zealand Journalist & Television Documentary Producer

Dion Neill was an absolute godsend! He resolved our sensitive personal issue with care and professionalism.

Private Client

Dion Neill provided us with advice on a number of security and risk management issues. We recommend Dion, he is a highly skilled and respected security consultant.

Corporate Client

The Neill Group helped us to find a missing family member. We are grateful for their professionalism and understanding, and their fast, discreet service.

Private Client

We contract The Neill Group as our tracing and vehicle repossession agents throughout New Zealand. They never leave a stone unturned! Dion’s team are professional, cost efficient, and their positive outcomes reflect their tenacity.

I always found Dion Neill a pleasure to work with, his enthusiasm and dedication is a cut above. His knowledge and standing in the security sector is second to none.

I worked alongside Dion during his time at Wellington Free Ambulance. Whether at the scene of a car accident or in an office environment I always found Dion to have integrity, he is professional and easy to work with. Dion is very community minded and a long time supporter of Life Flight.

Dave Greenberg – Former Rescue Helicopter Crewman

I worked with Dion on a number of large public events. Dion brings a high level of professionalism which contributes to the success of the event and his team. Dion is always a pleasure to work with, highly trusted and respected.

Event Manager

I had the privilege of working with Dion Neill since 1999. In that time Dion has been an inspiring leader, I have worked with Dion on many security projects ranging from the defence cluster to crime scene protection. Dion’s attention to detail is second to none, he ensures that his clients needs are fully met.

Dion Neill carried out a highly sensitive investigation on my behalf. I found him to be discreet and professional, he was frequently able to update me. I appreciated his attention to detail, and consideration when it came to our safety. Dion has an incredible array of skills, and his experience gives him a unique insight into various situations. Dion provided outstanding service, I would strongly recommend Dion.

Private Client

Dion Neill applied a high degree of logic and intelligence to our requirements which resulted in a positive outcome for all parties. Dion is self disciplined, professional and committed. He is respected and recognised as an expert by our team.

Corporate Client

Dion Neill and his security team attended our staff Christmas event with over 150 people. The team were incredibly professional, I was personally impressed about how well dressed they were. I recommend Dion Neill and his team without reservation.

Dion Neill and his team provided security on behalf of Sony Records for the New Zealand tour of Bardot from Pop Stars. Thanks to the efforts of Dion and his wonderful team, Bardot always felt very safe.

Thank you for providing security to Jamie Oliver during his tour. We received excellent feedback, all credit must go to Dion Neill for his positive ‘can do’ attitude and level of professionalism.

Dion and his team were responsible for managing the security of the 2000 Olympic Torch Relay. On behalf of the Wellington City Council, thank you for your assistance.


Dion Neill is a passionate business person focused on building and maintaining strong partnerships. Dion has always been driven to search out opportunity and drive success strategically. This is a culture he instills in his team and can rely on to deliver a win-win solution.

I was lucky enough to have met Dion Neill while I was the Mayor of Wellington. I found Dion to be a person of high integrity and reliability. Dion is a true Wellingtonian who adds real value to the wider community.

Mark Blumsky (Former Mayor of Wellington)
Mike McRoberts – TV3 News Anchor

We have worked together with Dion and his team on many jobs and have always found it a pleasure to work together with them. They have proven to be professional, timely, thorough and eager to achieve the goals set out. Their communication and reporting is next to none!

Bryan Wotton – Security Consultant & Private Investigator

Dion Neill operated alongside me on a high-profile security operation. He is an accomplished security specialist, his attention to detail, excellent communication skills and ability to motivate by giving confidence to personnel is a quality seldom seen today.

Graham Lockhart – Personal Safety & Security Consultant

Dion Neill is fantastic at what he does and has built a solid team around him which is exactly what makes Dion my go-to when it comes to security, he is friendly, easy to work with.

Film Industry Client

Dion Neill is a passionate operator who leads his team from the front, he is focused on ethics and doing the right thing. A seasoned security professional, if you need a job done well and with a great customer experience, he is the man to contact.

Dion Neill has been a fantastic supporter of Life Flight for many years. Dion went the extra mile providing security at no charge to keep our volunteers safe during our street appeal. Thank you Dion, really appreciate you having our backs!

We haven’t seen our Brother for around 10 years, we needed to find him as our father was terminally ill. Dion showed great urgency to our request, he was very professional with great communication. After a lot of hard work and really good initiative, Dion located our Brother in just 1 day!

Private Client

The security services provided by you were of a professional nature and were commented on favourably by all delegates, in particular, those from overseas.

Thank you Dion, you made it safe for us to enjoy the beauty and wide open spaces of New Zealand. It was truly a remarkable experience for us all, we are sincerely grateful for your assistance.

International Celebrity

We have trusted Dion with the safety and security of our clients who travel to New Zealand. Dion has earned an excellent reputation for his professionalism, security management, operational planning and ability to think outside the square.


Dion Neill and his team provided extensive security, protection and risk management services to Apple and A24 film productions in New Zealand. Dion and his team were personable and very professional, he comes highly recommended with endorsement by the New Zealand and international film industry.

Dion is very professional, and excellent communicator. Dion provides security to the highest standard, I definitely recommend Dion for any security assignment.

We had Dion Neill coach our field agents on strategies to manage conflict that will keep them safe. The feedback was resoundingly positive and now being implemented every day.


We engaged Dion Neill to manage our security. Dion and his team were very discreet and professional, we have no hesitation in using him again.

We regularly use the The Neill Group for tracing, process serving and investigations, they are efficient and always produce exceptional results.

Westpac utilised the services of Dion Neill to assist our national fraud and security team. We highly recommend Dion, he is reliable and very professional.

We have used The Neill Group for process serving on a number of occasions, we have always been impressed with their efficiency and professionalism.

Dion Neill is engaged to provide event security, personal protection, and private investigations. He is also a specialist instructor for executive protection training. Dion constantly delivers a high level of skill and performance.

I have been utilising the services of Dion Neill and The Neill Group for several years. They operate in a very professional manner and the work is always completed in a timely way.

I have worked with Dion Neill for over 5 years. Every time that I have engaged his services, he has been responsive and has completed the job quickly. His reporting is done in a timely fashion. Dion is great to work with, reliable and responsible.

It was a pleasure to work with Dion at the Cuba Street Carnival who fulfilled his role as our security manager in a highly professional manner. The event, from a security point of view, ran smoothly and we will certainly look to work with Dion again.

Intercoll has enjoyed a very strong relationship with Dion Neill and The Neill Group for over 10 years. We find Dion and his team to be professional in all of their activities, I am personally impressed with their results, communication and reporting systems.

The Neill Group provided field services to Bluestone on a national basis. Dion and his team are extremely reliable and hardworking, their work has always been of an excellent quality and very professional.

A + for Dion Neill who set a new benchmark as our security provider in New Zealand. Dion is the consummate professional, he is well skilled, resourceful and mastered the ability to deliver security to a very high standard.

Tour Manager (Music Artists)