Company lists · Data refreshed September 2026

Top 15 Network security monitoring services based in New Zealand

RevenueBase identified 25 company matches for network security monitoring services associated with New Zealand as of September 2026 and tracks 345 professional contacts across them, including 228 with verified work emails. Auckland is the largest hub.

This list covers company matches for network security monitoring services associated with New Zealand, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
25Companies
345Contacts tracked
228Verified emails
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The 15 largest network security monitoring services based in New Zealand

Ranked by team size
Top 15 of 25 company matches for network security monitoring services based in New Zealand, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAuckland, New ZealandHQ recorded Sep 21, 202651-200119 contacts →

Exact match

“DEFEND are an independent agnostic cyber security partner.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchWellington, New ZealandHQ recorded Sep 21, 202651-20094 contacts →

Exact match

“Bastion Security combines the skills, expertise and leadership from Quantum Security, ZX Security, Helix Security, Cassini and now Cythera.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchAuckland, New ZealandHQ recorded Sep 21, 202651-20037 contacts →

Exact match

“ADT Security has made it our business to help safeguard people, property and possessions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchAuckland, New ZealandHQ recorded Sep 21, 202611-5014 contacts →

Exact match

“OptimaTech is passionately committed to transforming businesses across New Zealand, Hong Kong and Asia Pacific by leveraging security-driven technology as the foundation for…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchWellington, New ZealandHQ recorded Sep 21, 202611-5010 contacts →

Exact match

“Signal works with companies that are looking for innovative ways to leverage technology to improve safety and business continuity.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchChristchurch, New ZealandHQ recorded Sep 21, 20261-107 contacts →

Exact match

“Fenrir Security was founded with a rebellious spirt and an audacious goal: to provide technical excellence across cyber security services at an equitable price point while…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchMelling, New ZealandHQ recorded Sep 21, 20261-106 contacts →

Exact match

“Diode is an NZ based security company built on passion for technology and drive to secure customers environments.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchWellington, New ZealandHQ recorded Sep 21, 202651-2004 contacts →

Exact match

“- IT Security Specialists, known as has been servicing government and corporate clients in New Zealand and across the world for more than 30 years.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchWellington, New ZealandHQ recorded Sep 21, 20261-102 contacts →

Exact match

“Cassini Limited is an Information Technology Consultancy based out of Wellington, New Zealand.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchAuckland, New ZealandHQ recorded Sep 21, 202611-502 contacts →

Exact match

“We help protect your business by implementing right-sized security solutions tailored to your organisation, no matter its size.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchRemote, New ZealandHQ recorded Sep 21, 20261-102 contacts →

Exact match

“CyberSentience is a Managed Security Service Provider (MSSP) specialising in Cyber Threat Intelligence.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchAuckland, New ZealandHQ recorded Sep 21, 20261-102 contacts →

Exact match

“We make complicated IT security easy for businesses so they can be sure they are protected and retain the trust of their clients.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchAuckland, New ZealandHQ recorded Sep 21, 20261-102 contacts →

Exact match

“Core 73 is an Auckland based cybersecurity firm with over 20 years of experience on Network Security.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchWellington, New ZealandHQ recorded Sep 21, 20261-102 contacts →

Exact match

“CyberCo provides a comprehensive range of cyber security and IT services that will keep your business data secure.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchAuckland, New ZealandHQ recorded Sep 21, 20261-102 contacts →

Exact match

“At MTCyber Limited, we are dedicated to fortifying the cybersecurity defenses of businesses, ensuring they navigate the digital landscape with confidence.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 15 of 25 network security monitoring services based in New Zealand

See the full list, filter by size, metro and specialty, and access 228 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Network security monitoring services based in New Zealand at a glance

As of Sep 21, 2026
66.1%Verified-email coverage
13.8Average contacts per company
1-10Median size (employees)
52.0%Largest-city concentration · Auckland
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
16
11-50
5
51-200
4

Email recency for this list is measured worldwide rather than for New Zealand, so it is reported there. Company counts and contact totals on this page are exact for New Zealand, over 25 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with New Zealand whose business descriptions match “network security monitoring services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 228 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “network security monitoring services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many network security monitoring services are there based in New Zealand?

RevenueBase identified 25 company matches for network security monitoring services associated with New Zealand as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Defend tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most network security monitoring services?

Auckland leads with 13 company records, followed by Wellington (8) and Christchurch (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 228 professional contacts with verified work emails tracked across these 25 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.