Company lists · Data refreshed September 2026

Top 25 Consultancy services based in New Zealand

Name: Consultancy services based in New Zealand
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 1,625 companies tracked

RevenueBase identified 1,625 consultancy services headquartered in New Zealand as of September 2026 and tracks 10,267 professional contacts across them, including 4,847 with verified work emails and 288 with mobile numbers. Auckland is the largest hub.

This list covers consultancy services 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 24, 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 24, 2026 86% judged on-target in blind review

1,625Companies

10,267Contacts tracked

4,847Verified emails

288Mobile numbers

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The 25 largest consultancy services based in New Zealand

Ranked by team size

Top 25 of 1,625 consultancy services based in New Zealand, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to consultancy services: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Opus International Consultants Limited	Indirect evidence	Wellington, New ZealandHQ checked Sep 24, 2026	1,001-5,000	568 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 24, 2026
2	RCP	Indirect evidence	Auckland, New ZealandHQ checked Sep 24, 2026	201-500	422 contacts →
	Indirect evidence “RCP has been adding value through our provision of independent strategic advisory, programme and project management services to Aotearoa’s infrastructure, property and…” Source: RevenueBase Database · checked Sep 24, 2026
3	Babbage Consultants Limited	Strong evidence	Auckland, New ZealandHQ checked Sep 24, 2026	201-500	233 contacts →
	Strong evidence “Babbage is a 100% New Zealand-owned multi-discipline consultancy offering 'one-stop-shop' solutions and specialist expertise in Architecture and Interior Design, Ecology…” Source: RevenueBase Database · checked Sep 24, 2026
4	Tenzing Limited	Indirect evidence	Auckland, New ZealandHQ checked Sep 24, 2026	51-200	138 contacts →
	Indirect evidence “At Tenzing, we’ve been guiding our clients to new heights for over twenty years, embodying what we call the Sherpa ethos: partnering closely with clients, supporting them, and…” Source: RevenueBase Database · checked Sep 24, 2026
5	The Building Intelligence Group	Indirect evidence	Wellington, New ZealandHQ checked Sep 24, 2026	51-200	122 contacts →
	Indirect evidence “The Building Intelligence Group is 35 years strong in independent project management and advisory services.” Source: RevenueBase Database · checked Sep 24, 2026
6	RUSH	Indirect evidence	Auckland, New ZealandHQ checked Sep 24, 2026	51-200	121 contacts →
	Indirect evidence “Technology and new customer expectations are changing everything, fast.” Source: RevenueBase Database · checked Sep 24, 2026
7	MAVEN	Indirect evidence	Nz Wide, New ZealandHQ checked Sep 24, 2026	51-200	120 contacts →
	Indirect evidence “Maven turns potential into reality.” Source: RevenueBase Database · checked Sep 24, 2026
8	Duco Consultancy	Strong evidence	Auckland Central, New ZealandHQ checked Sep 24, 2026	51-200	117 contacts →
	Strong evidence “Duco Consultancy exists to solve critical issues facing our clients, both large and small on their journey of business and digital transformation.” Source: RevenueBase Database · checked Sep 24, 2026
9	BCD Group Limited	Strong evidence	Hamilton, New ZealandHQ checked Sep 24, 2026	51-200	116 contacts →
	Strong evidence “BCD Group Limited is a locally owned and operated consultancy specialising in Planning, Surveying, Environmental, Geotechnical, Civil, Traffic & Transport, Structural and Fire…” Source: RevenueBase Database · checked Sep 24, 2026
10	Stellar Projects LTD	Indirect evidence	Auckland, New ZealandHQ checked Sep 24, 2026	11-50	80 contacts →
	Indirect evidence “Stellar Projects provides independent project, programme and commercial leadership for complex transport, water and energy infrastructure.” Source: RevenueBase Database · checked Sep 24, 2026
11	Powell Fenwick	Strong evidence	Christchurch, New ZealandHQ checked Sep 24, 2026	51-200	79 contacts →
	Strong evidence “Powell Fenwick is a Christchurch based engineering consultancy firm with significant experience in all facets of building design and construction.” Source: RevenueBase Database · checked Sep 24, 2026
12	Agfirst NZ	Strong evidence	Hamilton, New ZealandHQ checked Sep 24, 2026	51-200	78 contacts →
	Strong evidence “AgFirst, New Zealand's largest independent agribusiness consultancy, is a leader in developing innovative and constructive solutions for farming and agricultural businesses.” Source: RevenueBase Database · checked Sep 24, 2026
13	Barker & Associates	Strong evidence	Auckland City, New ZealandHQ checked Sep 24, 2026	11-50	77 contacts →
	Strong evidence “Barker & Associates is a specialist planning consultancy founded in 1997.” Source: RevenueBase Database · checked Sep 24, 2026
14	Cheal Consultants LTD	Strong evidence	Taupo, New ZealandHQ checked Sep 24, 2026	51-200	72 contacts →
	Strong evidence “Cheal is an award-winning multi-disciplinary consultancy with offices in Taupo, Taumarunui, Ohakune, Rotorua, Napier and Hamilton.” Source: RevenueBase Database · checked Sep 24, 2026
15	INOVO	Strong evidence	Christchurch Central, New ZealandHQ checked Sep 24, 2026	51-200	71 contacts →
	Strong evidence “Inovo is a dynamic and genuine consultancy partner, specialising in project planning, project management and land development.” Source: RevenueBase Database · checked Sep 24, 2026
16	Catalyst Group	Strong evidence	Auckland, New ZealandHQ checked Sep 24, 2026	11-50	68 contacts →
	Strong evidence “Much more than your traditional design and architecture firm, Catalyst has been leading New Zealand as the end-to-end consultancy for commercial fit-out design and build - since…” Source: RevenueBase Database · checked Sep 24, 2026
17	Focus Technology Group NZ Limited	Indirect evidence	Invercargill, New ZealandHQ checked Sep 24, 2026	51-200	60 contacts →
	Indirect evidence “Focus can provide you with the right solution that fits you and helps you reach your business goals.” Source: RevenueBase Database · checked Sep 24, 2026
18	BBO Bloxam Burnett & Olliver	Strong evidence	Hamilton, New ZealandHQ checked Sep 24, 2026	51-200	60 contacts →
	Strong evidence “Bloxam Burnett & Olliver Ltd (BBO) is a New Zealand-based consultancy providing engineering, planning and land development services.” Source: RevenueBase Database · checked Sep 24, 2026
19	Cato Bolam	Strong evidence	Auckland, New ZealandHQ checked Sep 24, 2026	51-200	55 contacts →
	Strong evidence “Cato Bolam is a multidisciplinary consultancy delivering integrated, concept-to-completion solutions across land development, housing, infrastructure, civil engineering…” Source: RevenueBase Database · checked Sep 24, 2026
20	Mosaic	Indirect evidence	Auckland, New ZealandHQ checked Sep 24, 2026	51-200	55 contacts →
	Indirect evidence “Mosaic provides expert help to get the right mix of capability, process and systems to deliver your vision.” Source: RevenueBase Database · checked Sep 24, 2026
21	Cosgroves NOW Stantec	Indirect evidence	Christchurch, New ZealandHQ checked Sep 24, 2026	51-200	55 contacts →
	Indirect evidence “Cosgroves is now Stantec.” Source: RevenueBase Database · checked Sep 24, 2026
22	Stratos Technology Partners	Strong evidence	Christchurch, New ZealandHQ checked Sep 24, 2026	11-50	53 contacts →
	Strong evidence “Stratos Technology Partners is a Software Development and IT Consultancy firm based in Christchurch, New Zealand.” Source: RevenueBase Database · checked Sep 24, 2026
23	Ashton Wheelans	Strong evidence	Christchurch, New ZealandHQ checked Sep 24, 2026	51-200	52 contacts →
	Strong evidence “We’re business consultants and chartered accountants operating in Christchurch, Rangiora, Greymouth, Oamaru and Wanaka.” Source: RevenueBase Database · checked Sep 24, 2026
24	Polson Higgs	Indirect evidence	Dunedin, New ZealandHQ checked Sep 24, 2026	51-200	52 contacts →
	Indirect evidence “Polson Higgs specialise in business advisory, helping organisations to improve their performance, create value, reduce costs and increase profitability.” Source: RevenueBase Database · checked Sep 24, 2026
25	H2r Consulting	Indirect evidence	Wellington, New ZealandHQ checked Sep 24, 2026	11-50	52 contacts →
	Indirect evidence “H2R Consulting is a New Zealand owned recruitment and consulting firm with a national presence across Auckland and Wellington, supported by a team of 50 staff.” Source: RevenueBase Database · checked Sep 24, 2026

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: consultancy services. 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 consultancy services.
Partial evidence: Its own public description names part of consultancy services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name consultancy services. 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 1,625 consultancy services based in New Zealand

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Consultancy services based in New Zealand at a glance

As of Sep 24, 2026

47.2%Verified-email coverage

2.8%Mobile-number coverage

6.3Average contacts per company

1-10Median size (employees)

38.8%Largest-city concentration · Auckland

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

1,295

11-50

273

51-200

201-500

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 27.0d

3,5890–30

1,12631–60

7561–90

590–180

10180+

Company record updated

Median 89.0d

00–30

82031–60

4,59161–90

4,29390–180

478180+

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 consultancy services, 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 “consultancy services”. 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 consultancy services), 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 consultancy services, 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, 4,847 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 24, 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.

Consultancy services by metro

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 consultancy services, 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 consultancy services are there based in New Zealand?

RevenueBase identified 1,625 consultancy services 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?

Opus International Consultants Limited, headquartered in Wellington, tops this list with the largest team on record.

Which city has the most consultancy services?

Auckland leads with 631 headquartered companies, followed by Wellington (185) and Christchurch (155).

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 4,847 verified decision-maker contacts tracked across these 1,625 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 24, 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.