Company lists · Data refreshed September 2026

Top 24 Network security assessment companies based in New Zealand

RevenueBase identified 34 network security assessment companies headquartered in New Zealand as of September 2026 and tracks 413 professional contacts across them, including 268 with verified work emails. Auckland is the largest hub.

This list covers network security assessment companies headquartered in New Zealand, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
34Companies
413Contacts tracked
268Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 24 largest network security assessment companies based in New Zealand

Ranked by team size
Top 24 of 34 network security assessment companies based in New Zealand, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to network security assessment companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceAuckland, New ZealandHQ checked Sep 29, 202651-200119 contacts →

Partial evidence

“DEFEND are an independent agnostic cyber security partner.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceWellington, New ZealandHQ checked Sep 29, 202651-20094 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceWellington, New ZealandHQ checked Sep 29, 202651-20046 contacts →

Partial evidence

“RedShield is the essential partner for businesses needing an effective security solution for application risks.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceWellington, New ZealandHQ checked Sep 29, 202611-5025 contacts →

Indirect evidence

“Virtually every business that conducts business online is at risk of compromise by hackers, malware and other information-related crimes.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceAuckland, New ZealandHQ checked Sep 29, 202611-5014 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceWellington, New ZealandHQ checked Sep 29, 202611-5012 contacts →

Partial evidence

“Layer 9 was founded by a team of specialists committed to delivering strategic value and passionate about organisational security.”

Source: RevenueBase Database · checked Sep 29, 2026
7Partial evidenceAuckland, New ZealandHQ checked Sep 29, 202611-509 contacts →

Partial evidence

“AMARU is New Zealand’s leading information security and compliance service provider, offering end-to-end managed cyber security services across Australia and New Zealand.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceChristchurch, New ZealandHQ checked Sep 29, 20261-107 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceAuckland, New ZealandHQ checked Sep 29, 20261-106 contacts →

Partial evidence

“A team of cyber security experts, helping businesses build cyber resilience and manage their cyber security risk.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceAuckland, New ZealandHQ checked Sep 29, 202611-505 contacts →

Indirect evidence

“phew is a specialist pen testing provider.”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceWellington, New ZealandHQ checked Sep 29, 20261-105 contacts →

Partial evidence

“Expert, highly independent penetration testing and security review services.”

Source: RevenueBase Database · checked Sep 29, 2026
12Partial evidenceChristchurch, New ZealandHQ checked Sep 29, 20261-105 contacts →

Partial evidence

“Our mission is clear, to empower Kiwi businesses by fortifying their security posture through comprehensive IT Security Health Checks.”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceWellington, New ZealandHQ checked Sep 29, 20261-104 contacts →

Partial evidence

“Revolution InfoSec take the geek speak out of Cyber Security.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceAuckland, New ZealandHQ checked Sep 29, 20261-104 contacts →

Indirect evidence

“Cybercraft is dedicated to helping small businesses and not-for-profits stay secure in a digital world.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceAuckland, New ZealandHQ checked Sep 29, 20261-103 contacts →

Partial evidence

“At Nova Security, we deliver top-tier cybersecurity services including Penetration Testing, Cloud Security Solutions, and Blockchain Security.”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceAuckland, New ZealandHQ checked Sep 29, 202611-502 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
17Strong evidenceAuckland, New ZealandHQ checked Sep 29, 20261-102 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceWellington, New ZealandHQ checked Sep 29, 20261-102 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceAuckland, New ZealandHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceWellington, New ZealandHQ checked Sep 29, 20261-102 contacts →

Indirect evidence

“Division Zero (Ltd) delivers cybersecurity testing and consulting services.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceWellington, New ZealandHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“Navigating cybersecurity doesn’t have to be complex.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceThorndon, New ZealandHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“Security Simplified is a boutique IT security consulting and penetration testing company headquartered in Wellington, NZ.”

Source: RevenueBase Database · checked Sep 29, 2026
23Indirect evidenceChristchurch, New ZealandHQ checked Sep 29, 20261-101 contacts →

Indirect evidence

“Don't let a cybercriminal stop your business!”

Source: RevenueBase Database · checked Sep 29, 2026
24Partial evidenceAuckland, New ZealandHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“Cyber Future has over 25 years of experience in providing cyber security solutions to large enterprises throughout New Zealand and Australia.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 24 of 34 network security assessment companies based in New Zealand

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 268 reachable decision-makers.

Free signup · no credit card

View the full list →

Network security assessment companies based in New Zealand at a glance

As of Sep 29, 2026
64.9%Verified-email coverage
12.1Average contacts per company
1-10Median size (employees)
52.9%Largest-city concentration · Auckland
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
7
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 34 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among network security assessment companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in New Zealand whose own description of what they do matches “network security assessment companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names network security assessment companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among network security assessment companies, and records with no verified work email. Companies headquartered outside New Zealand are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 268 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names network security assessment companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many network security assessment companies are there based in New Zealand?

RevenueBase identified 34 network security assessment companies headquartered in New Zealand as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Defend, headquartered in Auckland, tops this list with the largest team on record.

Which city has the most network security assessment companies?

Auckland leads with 18 headquartered companies, followed by Wellington (10) and Christchurch (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 268 verified decision-maker contacts tracked across these 34 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 34 network security assessment companies based in New Zealand. Start with a free account, no credit card.

Download this list →

Related lists

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 Smart Search, 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.