Company lists · Data refreshed September 2026
Top 25 Government IT consulting firms based in New Zealand
RevenueBase identified 84 government IT consulting firms headquartered in New Zealand as of September 2026 and tracks 6,657 professional contacts across them, including 3,147 with verified work emails. Auckland is the largest hub.
This list covers government IT consulting firms 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 21, 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.
The 25 largest government IT consulting firms based in New Zealand
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 5,958 contacts → | ||||
Indirect evidence “Customer focused values.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 170 contacts → | ||||
Partial evidence “With a focus on IT security, cloud transformation, network and system integration, CNS provide high level solutions designed to suit your business requirements.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 73 contacts → | ||||
Indirect evidence “Adaptiv is the trusted data, integration and AI partner for leading enterprises across New Zealand and Australia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 51 contacts → | ||||
Indirect evidence “Unleashing business potential.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 33 contacts → | ||||
Partial evidence “Mercury IT is an ICT Services organisation located in Auckland, Tauranga, Wellington, Hamilton, Sydney and Melbourne.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 27 contacts → | ||||
Partial evidence “Optimus Systems has been delivering tailored IT solutions to small and medium-sized businesses since 2002, with offices across New Zealand and Australia.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 24 contacts → | ||||
Partial evidence “Since our inception in 2007 HB Technologies has grown into an industry leader, expanding our capabilities as a multidisciplinary IT Service Provider, offering a range of solutions…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 23 contacts → | ||||
Partial evidence “We’re an independent NZ owned company specialising in the provision of business & information technology consulting, to help grow your company’s business potential.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 19 contacts → | ||||
Partial evidence “ITCO Solutions Limited, located in Rotorua, New Zealand, is a premier provider of IT services and solutions tailored for industrial and commercial businesses.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 18 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 17 contacts → | ||||
Indirect evidence “ZX Security is a CREST certified cybersecurity consultancy.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 14 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 13 contacts → | ||||
Partial evidence “AT ACRONYM IT WE BELIEVE IN CREATING FREEDOM WITH TECHNOLOGY How does this core principle of freedom lie at the very heart of what we do?” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 13 contacts → | ||||
Strong evidence “IT Engine is a New Zealand owned IT company focused on providing quality and innovative solutions for government, corporate and small to medium enterprises.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 12 contacts → | ||||
Indirect evidence “We're here to keep your data secure.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 9 contacts → | ||||
Partial evidence “Unisphere Solutions offers; IT Strategy, Business Strategy, Digital Transformation and Cyber Security advisory services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 contacts → | ||||
Partial evidence “Link Consulting is a collaboration of highly skilled professionals who have great experience and longevity in ICT and Management.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 contacts → | ||||
Strong evidence “End 2 End is a boutique IT consulting practice, focussed on delivering managed IT infrastructure and network engineering services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 7 contacts → | ||||
Partial evidence “Likemind works with people who share our approach to work and to living… We are exceptionally proud to be an approved All of Government (AOG) provider of services across a number…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 contacts → | ||||
Partial evidence “Morrison Low is an Australasian management consulting firm with offices in Auckland, Wellington and Sydney.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 contacts → | ||||
Partial evidence “At IT Fortress, we specialize in delivering cutting-edge IT solutions tailored to empower businesses globally.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Partial evidence “Cloud Torque is a specialist service provider of business and information technology outcomes for corporate, government and enterprise organisations, with a particular focus in…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Indirect evidence “SageBush are public sector specialists.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Strong evidence “- IT Security Specialists, known as has been servicing government and corporate clients in New Zealand and across the world for more than 30 years.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: government IT consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names government IT consulting firms.
- Partial evidence
- Its own public description names part of government IT consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name government IT consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 84 government IT consulting firms based in New Zealand
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Government IT consulting firms based in New Zealand at a glance
As of Sep 21, 2026Companies by employee count
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 84 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 government IT consulting firms, 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 “government IT consulting firms”. 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 government IT consulting firms), 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 government IT consulting firms, 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, 3,147 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 21, 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.
Government IT consulting firms by metro
- Government IT consulting firms in Auckland28
- Government IT consulting firms in Wellington28
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 government IT consulting firms, 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 government IT consulting firms are there based in New Zealand?
RevenueBase identified 84 government IT consulting firms 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?
Datacom, headquartered in Auckland, tops this list with the largest team on record.
Which city has the most government IT consulting firms?
Auckland leads with 28 headquartered companies, followed by Wellington (28) and Hamilton (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 3,147 verified decision-maker contacts tracked across these 84 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 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 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.
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