private investigations - wellington & nationwide

We are Wellington's most trusted licensed private investigators. Regardless of the challenge you’re facing, our private investigators have the expertise to help.


Are you searching for a reputable, cost-effective and experienced licensed private investigator in Auckland,  Hamilton, Wellington, Christchurch or other region of New Zealand? We can help. Since 1987, Dion Neill and associates have been investigating scammers, thieves, fraudsters and deceptive partners in Wellington and throughout New Zealand since 1987.

We are the private investigators from the original company, Wellington Investigations. Dion was a co-founder of Wellington Investigations Limited. In 2002, Dion and his business partners from 'The Investigators' established Wellington Investigations to the Wellington market. It's important to note that Dion Neill and The Neill Group (TNG) are not associated with Reon Viles or Wellington Investigations 2013 Limited. 

Dion was featured on the popular Television New Zealand series 'Private Investigators' in 2002/2004, Dion has worked with the media as an advisor for film and television production company's featuring investigation, dishonesty offending and other crime related matters. He is a strong advocate for raising the level of professionalism and accountability in the security and private investigation industry.  

Why choose us?

We have an impressive track record of achieving positive results for a wide range of clients, including businesses, organisations, private individuals and government agencies. A number of our licensed private investigators throughout New Zealand are qualified former detectives, senior police officers and intelligence operatives. We use a proven investigation process to bring commercial and relationship dishonesty to your attention discreetly, efficiently and professionally.

Hire a licensed private investigator who works efficiently within the law

We take pride in delivering to our clients in Wellington, New Zealand and worldwide precisely what they need, in a manner that’s lawful and professional. With this in mind, we have developed a meticulous set of investigative processes that we follow on every investigation and field assignment. Hiring a qualified and licensed private investigator lessen the likelihood of evidence being dismissed in court. 

We find missing debtors, defendants and family members 

Are you trying to find the missing pieces or simply need to locate a person to serve legal documents or find a missing family member, including birth parents? We have an exceptional tracing expert who can assist with your tracing needs. There are many reasons for tracing missing persons and private individuals in New Zealand or worldwide. We are happy to help you find anyone with a lawful reason, we are often instructed to carry out tracing inquiries. 

Do you need to uncover abuse, fraud, theft or relationship dishonesty?

Our licensed private investigators are discreet, effective and highly experienced. It's concerning that according to research, more than 25% of adults in New Zealand have cheated on their spouses or partners, and approximately 15% have engaged in a discreet and undetected long-term affair. 

Hire a reputable licensed private investigator and stop guessing! We reveal the truth to give you peace of mind. The stakes are always high when you’re in a marriage or relationship with trust difficulties, so using a private investigator to find evidence and deliver the proof you need to establish their infidelity is critical. If private investigations of this nature are not managed appropriately, the repercussions can cause difficulties with reconciliation or separation, whichever comes next.

Want to find out if your spouse or partner is cheating?

To navigate this sensitive situation with calm and clarity, hire a skilled licensed private investigator who can uncover the facts and provide the evidence required. When you suspect your partner is being unfaithful, you want to know for sure what’s going on as soon as possible. We understand the frustrating feeling of having that ‘gut feeling’ but not knowing for sure. We can help you to obtain tangible proof, so that you can understand the situation and determine your course of action based on the facts.

Our nationwide services 

Our investigation and related services are available in Auckland, Hamilton, Wellington, Christchurch and throughout every region of New Zealand.

Personal services and investigations
  • Security reviews and risk assessments
  • Tracing debtors and defendants
  • Serving legal documents 
  • Tracing assets prior to recovery (repossession)
  • Surveillance for sensitive personal matters
  • Intelligence gathering 
  • Third party interviews  
  • Infidelity (cheating partners)
  • Child or elderly care matters
  • Physical and psychological abuse concerns
  • Online relationship background checks
  • Drug, alcohol and substance abuse 
  • Human forensics
  • Document examination
Commercial services and investigations 
  • Asset tracing
  • Workplace incidents
  • Employee theft
  • Fraud and other dishonesty 
  • Security audits
  • Drug and alcohol abuse
  • Insurance claims
  • Audits and security reviews
  • Risk assessments 
  • Mystery customer audits
  • Background checks
  • Document examination
  • Intelligence gathering 
  • Serving legal documents 
  • I.P. and trade mark infringements 
  • Theft of time and company property
  • Business due diligence 
  • Pre-employment screening
  • Technical surveillance counter measures (TSCM)


Sensitive personal  and private investigations         

Is your former spouse or partner not complying with your agreed child custody arrangements? We carry out investigations regarding custody issues and other sensitive family matters.

Are you concerned that your child or family member is keeping bad company? We provide security, surveillance and private investigation services relating to the welfare of people.

Our private investigators manage surveillance and undercover operations. Using electronic and traditional investigative techniques, we can help to prove relationship dishonesty, criminal activities and other types of unacceptable behaviour.

I.P.  and trade mark investigations   

Our private investigators are often instructed to investigate the infringement of copyright and trade mark patents. They also research the unauthorised use of logos, brands and intellectual property (IP).

Dion Neill has personally carried out investigations on behalf of global companies, including Nike, Adidas, Armani, Microsoft, Playboy and Sony PlayStation.

Don't let others take advantage of your success. Wherever you are based in New Zealand or internationally, our private investigators will assist you to protect the integrity of your brand and the reputation of your business in the market.

Physical and psychological abuse investigations      

Do you suspect an employee or family member is consuming excessive alcohol, taking drugs or using illegal substances? Substance abuse, including drugs and alcohol, are proven to be a foundation of anti-social behaviour.

Are you a victim of physical or psychological abuse? Our private investigators will provide the evidence that you need. We can also mitigate any risk to your personal safety.

Are you a victim of a bully or stalker? Our agents are experienced at investigating stalking, bullying and harassment. These situations may affect your mental health and wellbeing. 

Third part interviews and insurance investigations     

In the 1980s, Dion Neill was one of the first private investigators to carry out investigations on behalf of the Accident Compensation Corporation (ACC).

Long term injury, disability and accident related insurance claims can amount to a substantial amount of money. We suggest these types of insurance claims are validated before any compensation is made.

Our qualified and experienced investigators will assist to validate claims or investigate a claimant who is suspected of misrepresenting the facts (possible insurance fraud).

Fraud, theft and general dishonesty investigations

We have been catching thieves, fraudsters and cheating partners since 1987! Is your former spouse or partner not complying with your agreed child custody arrangements?

We carry out discreet private investigations regarding custody issues and other sensitive family matters. Are you concerned that your child or family member is keeping bad company?

We provide a range of security and private investigation services relating to the welfare of people. Our private investigators manage surveillance and undercover operations.

Business, corporate and commercial investigations

We offer the corporate and commercial sector a comprehensive nationwide investigation service to gather evidence, mitigate risk and safeguard their business interests.

Our proven detective skills, advanced investigative techniques and the use of modern technology enable us to take on every type of investigation assignment.

As a client, you are our first priority and recovering losses on your behalf is one of our key objectives. We obtain factual information and evidential statements from employees, offenders, witnesses and people of interest.