NZSA-Accredited professionals you can trust for surveillance, investigations, and security services
When hiring a private investigator in New Zealand, trust matters. The following professionals are audited and accredited by the New Zealand Security Association (NZSA)—ensuring they meet high standards of integrity, capability, and compliance.
Whether you're looking for infidelity surveillance, corporate investigations, or background checks, these verified providers operate legally and professionally across NZ.
All investigators are audited by the New Zealand Security Association
All professionals hold valid licenses and comprehensive insurance
Established professionals with years of successful investigations
16 verified professionals across New Zealand
Advanced Security Group is NZ's largest corporate/government security provider, with 13 branches nationwide. Their PI services are backed by advanced tech, in-house knowledge transfer, and 14+ years of team experience.
Alpha delivers premium uniformed PI and guard staff trained in "The Professional Approach"—emphasizing hospitality-grade customer service and strong visual presence.
Since 2005, Cougar has provided high-end manned and electronic security with 24/7 coverage and a "can-do" approach across Queenstown Lakes, Central Otago and beyond.
Craig Gilbert is a licensed security advisor and investigator with extensive experience in government, DOC, NZ Police, and corporate risk consulting.
Dion Neill is one of NZ's most experienced private investigators, offering specialist field services and risk management through his firm TNG.
FMH offers integrated security and investigation solutions across both islands—specializing in tech-driven monitoring and high-level systems integration.
Based in Hawke's Bay, HSM offers a full security and fire protection suite. Their PI services support corporate, school and government clients nationwide.
A licensed PI with 20+ years of experience in workplace investigations for SMEs across New Zealand.
Julian brings global expertise in security strategy and operational performance, helping companies lift safety standards and resilience.
Licensed PI operating locally with casework in domestic and commercial sectors.
A trans-Tasman provider with 350 NZ-based staff, Millennium supports security and investigation contracts in property, retail, and healthcare sectors.
Trusted provider with flexible, cost-effective PI services for both public and private sector clients.
National Security NZ is focused on elite, strategic security solutions for high-value government and corporate clients.
A top-tier PI firm trusted with complex national-level contracts in both the private and public sectors.
With a strong customer-centric culture and expert staff, Simply Security brings professional integrity to every PI case across NZ's major cities.
For over 20 years, Wellington Investigations has specialized in insurance-related surveillance, polygraph testing, and discreet private investigation services.
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Start QuizCommon questions about verified private investigators
NZSA (New Zealand Security Association) accreditation means the investigator has been audited and meets high standards of integrity, capability, and compliance with New Zealand security regulations. This provides additional assurance beyond basic licensing requirements.
Consider factors like coverage area, specialized services, experience level, and accreditation status. Use our quiz tool to get matched with investigators who specialize in your specific type of case and operate in your region.
Yes, all investigators listed here hold valid New Zealand private investigator licenses. Many also have additional NZSA accreditation, which represents an extra level of professional verification and ongoing compliance monitoring.
Yes, contact information is provided where available. You can call or visit their websites directly. Alternatively, use our matching service to get connected with multiple qualified investigators who can provide quotes for your specific needs.
Find verified private investigators who specialize in your type of case. Professional consultation available.