Company lists · Data refreshed September 2026

Top 25 Managed security service providers based in New Zealand

RevenueBase identified 92 managed security service providers headquartered in New Zealand as of September 2026 and tracks 821 professional contacts across them, including 489 with verified work emails and 24 with mobile numbers. Auckland is the largest hub.

This list covers managed security service providers 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
92Companies
821Contacts tracked
489Verified emails
24Mobile numbers
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The 25 largest managed security service providers based in New Zealand

Ranked by team size
Top 25 of 92 managed security service providers based in New Zealand, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names managed security service providers: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
DefendPartial evidence
Auckland, New ZealandHQ checked Sep 5, 202651-200119

“DEFEND are an independent agnostic cyber security partner.”

Source: company website · checked Sep 5, 2026
2
SecurecomStrong evidence
Ellerslie, New ZealandHQ checked Sep 5, 202651-200100

“Securecom is a NZ managed and owned Managed Security Services Provider (MSSP) providing end-to-end IT services to New Zealand businesses across all industry sectors.”

Source: company website · checked Sep 5, 2026
3
Bastion Security GroupPartial evidence
Wellington, New ZealandHQ checked Sep 5, 202651-20094

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

Source: company website · checked Sep 5, 2026
4
RedshieldPartial evidence
Wellington, New ZealandHQ checked Sep 5, 202651-20046

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

Source: company website · checked Sep 5, 2026
5
Aura Information SecurityIndirect evidence
Wellington, New ZealandHQ checked Sep 5, 202611-5025

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

Source: company website · checked Sep 5, 2026
6
LinearstackStrong evidence
Auckland, New ZealandHQ checked Sep 5, 202611-5023

“We are a leading New Zealand based Managed Security Service Provider (MSSP) and security systems integrator.”

Source: company website · checked Sep 5, 2026
7Auckland, New ZealandHQ checked Sep 5, 202611-5021

“Since 2002, NSP has been New Zealand’s trusted cybersecurity and IT partner for SMEs and mid-market organisations.”

Source: company website · checked Sep 5, 2026
8
Silicon Systems LimitedIndirect evidence
Upper Hutt, New ZealandHQ checked Sep 5, 202611-5018

“With a remarkable track record spanning over 32 years, Silicon has continuously evolved into a trusted technology partner for organisations across various sectors, including…”

Source: company website · checked Sep 5, 2026
9
NectarPartial evidence
Christchurch, New ZealandHQ checked Sep 5, 202611-5016

“At Nectar, we partner with forward-thinking businesses to harness the power of technology in securing their future and driving business efficiency.”

Source: company website · checked Sep 5, 2026
10
MyitmanagerIndirect evidence
Christchurch, New ZealandHQ checked Sep 5, 20261-1016

“The team at myITmanager work in partnership with South Island small and mid-sized businesses to help support them to grow with confidence.”

Source: company website · checked Sep 5, 2026
11
Optimatech LimitedPartial evidence
Auckland, New ZealandHQ checked Sep 5, 202611-5014

“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: company website · checked Sep 5, 2026
12
NextroPartial evidence
Auckland, New ZealandHQ checked Sep 5, 202611-5013

“Nextro is a cyber, physical, & electronic security systems provider, as well as an ISP/MSSP.”

Source: company website · checked Sep 5, 2026
13
KiwiictIndirect evidence
Auckland, New ZealandHQ checked Sep 5, 202611-5013

“We are a group of certified IT experts, highly specialised in world-class Network Cybersecurity solutions to improve your overall business performance by solving complex…”

Source: company website · checked Sep 5, 2026
14Wellington, New ZealandHQ checked Sep 5, 202611-5012

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

Source: company website · checked Sep 5, 2026
15
Cybercure LTDPartial evidence
Wellington, New ZealandHQ checked Sep 5, 20261-1011

“CyberCure is a boutique cyber security and privacy consultancy based in Wellington, NZ.”

Source: company website · checked Sep 5, 2026
16
Signal Corporation LimitedIndirect evidence
Wellington, New ZealandHQ checked Sep 5, 202611-5010

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

Source: company website · checked Sep 5, 2026
17
AMARUStrong evidence
Auckland, New ZealandHQ checked Sep 5, 202611-509

“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: company website · checked Sep 5, 2026
18
Softlink Services LTDIndirect evidence
Auckland, New ZealandHQ checked Sep 5, 20261-107
Source: company website · checked Sep 5, 2026
19
Fenrir SecurityPartial evidence
Christchurch, New ZealandHQ checked Sep 5, 20261-107

“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: company website · checked Sep 5, 2026
20
Pulse SecurityPartial evidence
Wellington, New ZealandHQ checked Sep 5, 20261-107

“Established in 2017, Pulse Security is an independent New Zealand offensive security and DFIR consultancy providing quality cybersecurity services to clients both locally and…”

Source: company website · checked Sep 5, 2026
21
CyberteamIndirect evidence
Wellington, New ZealandHQ checked Sep 5, 20261-107

“Work with us to protect your company quickly.”

Source: company website · checked Sep 5, 2026
22
Diode SecurityPartial evidence
Melling, New ZealandHQ checked Sep 5, 20261-106

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

Source: company website · checked Sep 5, 2026
23
Plural CyberStrong evidence
Auckland, New ZealandHQ checked Sep 5, 20261-106

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

Source: company website · checked Sep 5, 2026
24
DarkscopeIndirect evidence
Auckland, New ZealandHQ checked Sep 5, 202611-506

“Darkscope delivers client-specific intelligence from cyberspace that identifies and quantifies their risk> This risk may be stolen or compromised data, intellectual property (IP)…”

Source: company website · checked Sep 5, 2026
25
Outfox LimitedIndirect evidence
Paraparaumu, New ZealandHQ checked Sep 5, 20261-105

“Outfox has a single mission to make businesses more cyber resilient - fully prepared to detect, respond and most importantly recover from cyber-attacks.”

Source: company website · checked Sep 5, 2026

Showing 25 of 92 managed security service providers based in New Zealand

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 489 reachable decision-makers.

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Managed security service providers based in New Zealand at a glance

As of Sep 5, 2026
1-10Median size (employees)
AucklandLargest hub · 42 HQs
24Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
65
11-50
20
51-200
7

Verified emails by last verification

0–30
452
31–60
36
61–90
1
90–180
0
180+
0

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 managed security service providers, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “managed security service providers”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among managed security service providers, 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 an evidence 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, 489 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 5, 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.

Managed security service providers by metro

  • Managed security service providers in Auckland42
  • Managed security service providers in Wellington25

Frequently asked

How many managed security service providers are there based in New Zealand?

RevenueBase identified 92 managed security service providers 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 managed security service providers?

Auckland leads with 42 headquartered companies, followed by Wellington (25) and Christchurch (8).

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 489 verified decision-maker contacts tracked across these 92 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 5, 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.