Company lists · Data verified August 2026

Top 25 Cybersecurity incident response firms based in New Zealand

Name: Cybersecurity incident response firms based in New Zealand
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 39 companies tracked

There are 39 cybersecurity incident response firms headquartered in New Zealand (RevenueBase, August 2026). RevenueBase tracks 387 professional contacts across them, including 228 with verified work emails and 6 with mobile numbers. Auckland is the largest hub.

This list covers cybersecurity incident response firms headquartered in New Zealand, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

39Companies

387Contacts tracked

228Verified emails

6Mobile numbers

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The 25 largest cybersecurity incident response firms based in New Zealand

Ranked by team size

Top 25 of 39 cybersecurity incident response firms based in New Zealand, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Defend	Auckland	51-200	119	81
2	Bastion Security Group	Wellington	51-200	93	64
3	Kordia Secops NZ	Epsom	11-50	20	14
4	Optimatech Limited	Auckland	11-50	14	6
5	Cybercure LTD	Wellington	1-10	11	8
6	Incident Response Solutions	Auckland	1-10	8	5
7	Fenrir Security	Christchurch	1-10	7	5
8	Pulse Security	Wellington	1-10	7	4
9	Cyberteam	Wellington	1-10	7	3
10	Diode Security	Wellington	1-10	6	5
11	Plural Cyber	Auckland	1-10	6	3
12	Outfox Limited	Paraparaumu	1-10	5	4
13	Wire8 Cyber	Auckland	1-10	5	4
14	Revolution Infosec	Wellington	1-10	4	2
15	Tier Zero Security	Wellington	1-10	3	3
16	Cassini Limited	Wellington	1-10	2	2
17	Cipher Security	Auckland	11-50	2	1
18	Core 73	Auckland	1-10	2	1
19	Cyberco	Wellington	1-10	2	1
20	Division Zero	Wellington	1-10	2	1
21	Mtcyber Limited	Auckland	1-10	2	1
22	GRC Group Systems	n/a	1-10	1	1
23	Cyber Future NZ LTD	Auckland	1-10	1	1
24	Trust Hound	Wellington	1-10	1	1
25	Safetoopen Limited	Auckland	1-10	1	1

Showing 25 of 39 cybersecurity incident response firms based in New Zealand

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Cybersecurity incident response firms based in New Zealand at a glance

As of Aug 28, 2026

1-10Median size (employees)

AucklandLargest hub · 17 HQs

6Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

501-1,000

Cybersecurity incident response firms by metro

Metro	Companies
Cybersecurity incident response firms in Auckland	17
Cybersecurity incident response firms in Wellington	14
Cybersecurity incident response firms in Christchurch	2
Cybersecurity incident response firms in Paraparaumu	1
Cybersecurity incident response firms in Hamilton	1
Cybersecurity incident response firms in Epsom	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “cybersecurity incident response firms”, with match quality audited by blind human judging, and headquartered in New Zealand.
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: Contact records re-verify on a rolling cadence; 1 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cybersecurity incident response firms are there based in New Zealand?

There are 39 cybersecurity incident response firms headquartered in New Zealand as of August 2026 (RevenueBase).

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 cybersecurity incident response firms?

Auckland leads with 17 headquartered companies, followed by Wellington (14) and Christchurch (2).

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 228 verified decision-maker contacts tracked across these 39 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.