Over 30,000 assignments completed! We are New Zealand's most experienced providers of investigation, surveillance and intelligence gathering services.
As New Zealand’s top-rated private investigators, we deliver the truth when you need it most. We manage every field assignment with unmatched expertise, serving Auckland, Wellington, Christchurch, and all regions nationwide. Not all private investigators are equal – when uncertainty threatens your business, family, or peace of mind, choosing a private investigator with proven experience is vital. Our team combines over three decades of law enforcement and intelligence expertise with cutting-edge technology. Supported by the professional insights of former police detectives and intelligence officers, we guarantee the results you deserve.
- New Zealand’s Premier Investigation Team: Our team includes former police detectives, senior police officers and intelligence specialists.
- Over 30 Years of Frontline Success: We have over three decades of experience with a proven track record of over 30,000 completed assignments.
- Unmatched Network of Specialists: We maintain immediate access to a network of certified security consultants and forensic document examiners.
Built on a foundation of over 200 years of combined experience, The Neill Group (TNG) is New Zealand’s trusted partner for professional investigation, surveillance, and intelligence gathering. Our roots date back to 2002 when Dion Neill co-founded Wellington Investigations. Following the successful sale of that original company, The Neil Group (TNG) was formed to deliver unmatched, results-driven investigation services in every corner of the country.
Our highly-skilled investigation, surveillance and intelligence gathering team effectively bridges the gap between over three decades of field based experience with proven investigative skills and modern technological advancements. Our New Zealand government (PSPLA) licensed private investigators provide comprehensive investigative support to legal, corporate, commercial and selected private clients throughout New Zealand and worldwide.
Copyright, I.P. & Trade Mark Investigations
We investigate the infringement of IP, copyright and trade mark patents. We can assist help you to safeguard the integrity of your brand or company’s reputation. Dion Neill has personally carried out complex investigations for global companies, including: Nike, Sony, Adidas, Armani, Playboy, Microsoft and Rugby World Cup.
Insurance Claim Investigations
We have acted for a number of insurance providers to ensure claims are genuine. Insurance claims can amount to substantial amounts of money, which often requires further investigation before any form of compensation is made to the insured. We assist insurance providers to confirm the validity of claims and to investigate a claimant who is suspected of fraud or misrepresenting the facts.
Drugs, Alcohol & Substance Abuse Investigations
Do you suspect your partner, family member or employee of taking drugs or illegal substances? Drugs, alcohol and substance abuse is often the foundation for criminal and anti-social behaviour. We can investigate any concern of drug, alcohol, substance abuse and, suspected physical abuse.
Commercial Investigations
We offer business owners a comprehensive investigation service to safeguard their business interests. Our modern technology and formidable experience enable us to take on every type of investigation assignment. We will thoroughly investigate, obtain factual information and take evidential statements.
Criminal Investigations
We support criminal prosecution teams and defence counsel (barristers and solicitors) throughout New Zealand who are actively engaged in criminal cases. Our legal support services includes interviewing, surveillance, taking statements, locating witnesses, obtaining evidence, and legally compliant intelligence gathering.
Vetting & Background Checks
Who are you really hiring? With the many investigation tools at our disposal, we provide employers with evidence-based recommendations about prospective employees. We also carry out discreet background check on prospective employees or employees in positions of trust to mitigate risk.
Employment, Human Resource & Workplace Investigations
Protect your business with independent employment, human resource and workplace investigations. Managing bullying, harassment or serious employee disputes requires strict impartiality. Our private investigators manages the entire process to ensure fairness, reduce risk, and to meet your legal obligations as a good employer.
Criminal Defence
We provide criminal defence lawyers with thorough, impartial investigative support to build robust cases. When your client’s freedom is on the line, you need reputable Private investigators who understand the strategy of both sides of the courtroom. Our team of qualified former police detectives and senior police officers know exactly how law enforcement operates.
Theft, Fraud, Scams & Dishonesty Investigations
Our private investigators frequently investigate theft, fraud, online scams and dishonesty offences including suspected insurance claim fraud. We have a lengthy track record of catching thieves, online scammers and fraudsters. We use a number of legally acceptable investigative tools including scam baiting, digital footprint tracking and open source tracing methods to expose offenders.
Suspected Infidelity & Personal Relationship Investigations
Are you searching for a reputable private investigator in Auckland, Wellington, Christchurch or any other region of New Zealand? Our private investigators will confirm if your partner is cheating or being dishonest. We carry out discreet infidelity and personal relationship investigations. Our private investigation team use various investigative tools including surveillance, social media, honey trapping and data mining to prove relationship dishonesty (infidelity).
Employee & Contractor Dishonesty Investigations
Our team of private investigators can assist with the investigation of fraud, theft and other acts of dishonesty. We also provide a range of investigation, protective security and risk management services to assist with other concerns including stalking, harassment, bullying, and personal safety.
Online Integrity, Digital Footprint & Social Media Management
Our online intelligence services deliver lawful, evidence grade assessments of a subject’s publicly available digital footprint. We map open source data by analysing public profiles, executing handle pivots, and conducting thorough adverse media screening. Every investigation strictly adheres to non-intrusive compliance standards, we never utilise account access, data interception, or covert tracking.
Corporate, Business & Commercial Due Diligence
Our due diligence and risk mitigation services delivers valuable insights designed to mitigate risk and protect critical assets. We provide comprehensive due diligence to secure strategic transactions, alongside competitor analysis to sharpen market positioning. When internal threats arise, our team conducts thorough investigations, targeted intellectual property and data leak inquiries.
Enforcement of Debt, Legal Orders & Court Judgments
Winning a court case is only half the battle; collecting what you are owed is the real victory. We enforce debt, legal orders, court judgments and arbitration awards when your client or debtor refuses to pay. Our private investigators manage the entire process from start to finish, combining legal expertise with practical strategies to turn your legal victory into actual cash recovery.
Paralegal Support & Litigation Services
Our process servers and private investigators assist legal clients throughout New Zealand with tracing, field visits, case reviews, forensic analysis, interviewing, obtaining evidence, scene examinations, enforcing court judgments and serving legal proceedings.
Children, Young People & Family Custody Investigations
Protecting your child is your top priority. If you suspect any form of abuse or negligence from your childcare provider or caregiver, our private investigators will gather evidence to give you peace of mind and legal proof so you can take further action. Your child deserves to live in a safe environment, and you deserve to know the truth.
Insolvency, Liquidations & Company Receiverships
Our team have an extensive nationwide reach, we combine our decades of industry knowledge with professional execution. We specialise in the management of insolvency, liquidations and company receiverships, locating and safeguarding assets with anywhere in New Zealand. Our people are expert negotiators who know how to manage conflict and deliver the best possible results.
Commercial, Corporate & Business Investigation
Our private investigators have been supporting business owners and corporate clients since 1987. Our decades of commercial and private investigation experience allows us to deliver exceptional results. Our qualified former police detectives and senior police officers discreetly investigate, obtain evidence and information to assist with prosecutions and legal matters.
Residential & Commercial Re-Entry (Evictions)
If a tenant of a commercial property defaults and the statutory notice period is met, a landlord may effect a peaceable re-entry. Our private investigators act as agents for residential landlords and commercial property owners, we manage the entire eviction and re-entry process from serving the required legal documents to securing the property, every step we take is legal and compliant.
Surveillance (Covert) & Intelligence Gathering
Are you searching for a reputable and experienced private investigator? We have been providing surveillance, investigation and intelligence gathering since 1987. Our private investigators use covert surveillance and intelligence led investigations to obtain evidence of theft, fraud, and dishonesty. When you need peace of mind, you can rely on our private investigators to reveal the truth.
Personal Safety & Conflict Management Training
Our personal safety, situational awareness and conflict management training empowers you to manage challenging, abusive, and aggressive behaviours safely and legally. You will learn to recognise automatic stress responses and implement practical, real-time strategies to manage them effectively and professionally. We can also design and facilitate training on any matter to suit your requirements.
Insolvency, Liquidations & Company Receiverships
Our operations team have an extensive nationwide reach, we combine our industry knowledge with efficient execution. We specialise in the seamless management of insolvency, liquidations and company receiverships, locating and safeguarding assets with absolute precision. Our people are expert negotiators who are professionally trained to manage conflict and deliver the best possible result.
Automotive Industry Floor Plan Auditing
As one of New Zealand’s largest nationwide floor plan auditing providers, we deliver unmatched independent and impartial vehicle asset verification. Our trusted reputation in the market ensures we are the premier choice for major banks, lenders and finance companies. We utilise a highly experienced team of private investigators with investigative experience to ensure accuracy and reliable data.
Field Visits, Debt Collection & Identity Verifications
When your client or debtor ignores calls, letters, and emails, a personal face-to-face visit is the most appropriate next step. Using our extensive network of private investigators we provide field-based coverage throughout New Zealand. Our team are highly integral to the debt collection process by establishing direct contact, inspecting assets, negotiating payment arrangements, verifying personal identification and financial information.
Discreet, Reliable & Confidential Private Investigations
As New Zealand’s most trusted private investigators, Dion Neill and his team of private investigators have been providing reliable, discreet and confidential investigation services throughout New Zealand since 1987. Our team assist with sensitive personal matters, we manage stalkers, online harassment, child custody concerns, locating hidden assets, safeguarding family members and the personal service of court proceedings.