Do you need a private investigator? The Neill Group (TNG) can help.

23 September 2025
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The Neill Group (TNG) provides security, tracing, risk management, private investigations and professional field based services. TNG have a nationwide reach with offices in Auckland, Wellington and Christchurch to support their team of field agents, private investigators, repossession agents, security providers and risk management specialists.

Visit The Neill Group (TNG) online at www.tng.nz

 

Introducing Dion Neill, Founder & Business Owner.

Dion Neill is one of New Zealand’s most experienced field agents, process servers, security providers, private investigators and repossession agents. Dion’s career began with a period of service in the New Zealand defence forces and emergency services followed by training at the private training establishment of the Royal New Zealand Police College, where he gained a Certificate in Investigation Skills.

Dion has also been certified as a fraud examiner and achieved a Diploma of Security and Risk Management (Australia), National Certificate in Security and Certificate in Security Operations to Level IV (Australia) along with a number of other recognised credentials. He received extensive training by qualified former detectives, senior police officers, military personnel and intelligence operatives.

You’re in very safe hands! Dion and his associates have worked in some of the world’s most volatile regions, including Asia, Middle East and South Africa. Dion personally managed the security for a New Zealand sports team during a tour of South Africa. Dion is a recipient of the New Zealand Defence Forces Service Medal, St John Service Medal and Long Service Award from the Wellington Free Ambulance.

In 2021 and 2024, Dion Neill, TNG Security and The Neill Group (TNG) were named as finalists of the New Zealand Security Awards along with the Outstanding Security Performance Awards (OSPAs) in 2022, 2023 and 2024.

 

Dion Niell Wellington Investigator unnamed     Dion Niell Wellington Investigator award nzsa      Dion Niell Wellington Investigator OSPAS TNG      Dion Niell Wellington Investigator DN OSPAS 2024      Dion Niell Wellington Investigator 2023 ospas      Dion Niell Wellington Investigator IMG 8303

Media Articles & Radio Interviews 

Repossessions – Interview with More FM

 

Dion Neill talks about repossessions with Gareth and Sarah, More FM:  click here to listen 

Gone without a trace? Finding missing people in New Zealand

 

More FM interviews Dion Neill: click here to listen

Meet the Kiwi bodyguards protecting NZ’s rich and famous

https://www.nzherald.co.nz/bay-of-plenty-times/news/meet-the-kiwi-bodyguards-protecting-nzs-rich-and-famous/DO66AQF75RDOTL67TRIBGKYD5Q/#google_vignette

Thieves busy stealing a boat a day across New Zealand

https://www.waikatotimes.co.nz/nz-news/350073362/thieves-busy-stealing-boat-day-across-new-zealand

Easy access to spy cameras for perverts results in steep rise in covert filming

https://www.stuff.co.nz/dominion-post/news/72734130/easy-access-to-spy-cameras-for-perverts-results-in-steep-rise-in-covert-filming