New Zealand's most experienced field agents, private investigators, repossession agents, security professionals and process servers (legal document servers).


Since 1987, Dion Neill and his team have achieved outstanding results to private, commercial and government clients throughout New Zealand. Our objective is to deliver the best results and service with the highest level of integrity and professionalism.

We operate New Zealand's largest network of field agents, process servers, private investigators, repossession agents and security professionals. Our people are carefully selected for their resilience, unique skill set and proven operational expertise.

Every team member is governed by a strict code of ethics and contributes to a significant resource of collective experience.

Our 35 + years of experience and a solid track record of results offer clients absolute peace of mind.

Why choose us?
  • We use technology, confidential informants and intelligence sources that are second to none.
  • We carry out extensive vetting and background checks before engaging our contracted associates. 
  • A number of our people were sourced from the defence forces, intelligence and law enforcement sector.
  • Our operational capabilities are extensive; we provide services throughout every region of New Zealand.  

We have an established local and international network of alliance partners who are recognised experts in the private security, intelligence, investigation and field services market. 


Trust is an important element of our client relationships. You can be assured that we are committed to protecting your privacy, identity, and information at all times. 

Licensing & compliance

The Neill Group (TNG) are licensed by the Private Security Personnel Licensing Authority (PSPLA) as personal guards, property guards, security consultants, crowd controllers, monitoring officers, private investigators, repossession agents and confidential document destruction agents.

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 and operational capability. Our quality assurance framework provides a layer of transparency and accountability to our clients.

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Regardless of the challenge you’re facing, we have the expertise to help.