Company lists · Data refreshed September 2026

Top 25 Geoscience consulting firms based in New Zealand

Name: Geoscience consulting firms based in New Zealand
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 180 companies tracked

RevenueBase identified 180 geoscience consulting firms headquartered in New Zealand as of September 2026 and tracks 5,245 professional contacts across them, including 3,213 with verified work emails. Auckland is the largest hub.

This list covers geoscience 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 28, 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 28, 2026 86% judged on-target in blind review

180Companies

5,245Contacts tracked

3,213Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest geoscience consulting firms based in New Zealand

Ranked by team size

Top 25 of 180 geoscience consulting firms based in New Zealand, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to geoscience consulting firms: 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	Tonkin Taylor	Indirect evidence	Auckland Central, New ZealandHQ checked Sep 28, 2026	1,001-5,000	958 contacts →
	Indirect evidence “At Tonkin + Taylor, we’re dedicated to creating and sustaining a better world together.” Source: RevenueBase Database · checked Sep 28, 2026
2	Seequent	Indirect evidence	Christchurch, New ZealandHQ checked Sep 28, 2026	501-1,000	696 contacts →
	Indirect evidence “Seequent, The Bentley Subsurface Company, helps organisations to understand the underground, giving them the confidence to make better decisions faster.” Source: RevenueBase Database · checked Sep 28, 2026
3	Opus International Consultants Limited	Indirect evidence	Wellington, New ZealandHQ checked Sep 28, 2026	1,001-5,000	568 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
4	Babbage Consultants Limited	Indirect evidence	Auckland, New ZealandHQ checked Sep 28, 2026	201-500	233 contacts →
	Indirect 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 28, 2026
5	WOODS	Indirect evidence	Auckland, New ZealandHQ checked Sep 28, 2026	201-500	191 contacts →
	Indirect evidence “At Woods, we know there’s a lot at stake when you’re enabling land for new homes and infrastructure, reputation, investment, and the opportunity to create better, more resilient…” Source: RevenueBase Database · checked Sep 28, 2026
6	Kirk Roberts Consulting	Indirect evidence	Christchurch, New ZealandHQ checked Sep 28, 2026	51-200	129 contacts →
	Indirect evidence “Our purpose and passion is striving continuously to find better ways.” Source: RevenueBase Database · checked Sep 28, 2026
7	Engeo NZ & AU	Strong evidence	Christchurch, New ZealandHQ checked Sep 28, 2026	51-200	121 contacts →
	Strong evidence “ENGEO Ltd (formally Geoscience Consulting) is a specialist consultancy group providing Engineering Geological, Geophysical, Environmental and Geotechnical Engineering services.” Source: RevenueBase Database · checked Sep 28, 2026
8	MAVEN	Indirect evidence	Nz Wide, New ZealandHQ checked Sep 28, 2026	51-200	120 contacts →
	Indirect evidence “Maven turns potential into reality.” Source: RevenueBase Database · checked Sep 28, 2026
9	BTW Company LTD	Indirect evidence	New Plymouth, New ZealandHQ checked Sep 28, 2026	51-200	97 contacts →
	Indirect evidence “With offices in Ngāmotu – New Plymouth, Kirikiriroa – Hamilton, Whāingaroa – Raglan and Taupō, BTW is made up of 90+ professional land and geospatial surveyors, civil and…” Source: RevenueBase Database · checked Sep 28, 2026
10	Riley Consultants	Indirect evidence	Takapuna, New ZealandHQ checked Sep 28, 2026	51-200	84 contacts →
	Indirect evidence “Our company has evolved from humble yet visionary origins to become the multi-disciplinary consultancy it is today.” Source: RevenueBase Database · checked Sep 28, 2026
11	LDE Engineers Scientists	Indirect evidence	Gisborne, New ZealandHQ checked Sep 28, 2026	51-200	81 contacts →
	Indirect evidence “LDE are specialists in geotechnical, civil, environmental and structural engineering.” Source: RevenueBase Database · checked Sep 28, 2026
12	Fraser Thomas LTD	Partial evidence	Auckland, New ZealandHQ checked Sep 28, 2026	51-200	77 contacts →
	Partial evidence “Fraser Thomas is a Multi-Disciplinary, client focused consulting firm specialising in resource management, engineering and surveying.” Source: RevenueBase Database · checked Sep 28, 2026
13	Cheal Consultants LTD	Indirect evidence	Taupo, New ZealandHQ checked Sep 28, 2026	51-200	72 contacts →
	Indirect evidence “Cheal is an award-winning multi-disciplinary consultancy with offices in Taupo, Taumarunui, Ohakune, Rotorua, Napier and Hamilton.” Source: RevenueBase Database · checked Sep 28, 2026
14	Davis Ogilvie	Indirect evidence	Christchurch, New ZealandHQ checked Sep 28, 2026	51-200	69 contacts →
	Indirect evidence “Davis Ogilvie (DO) is a trusted multidisciplinary engineering consultancy in the South Island with an unwavering commitment to the region, its communities and the environment.” Source: RevenueBase Database · checked Sep 28, 2026
15	Landpro Limited	Indirect evidence	Cromwell, New ZealandHQ checked Sep 28, 2026	51-200	50 contacts →
	Indirect evidence “We are a New Zealand owned and operated, multi-disciplinary land focused consultancy with a passion for helping you make the most of your land.” Source: RevenueBase Database · checked Sep 28, 2026
16	Mitchell Daysh	Indirect evidence	Dunedin, New ZealandHQ checked Sep 28, 2026	11-50	45 contacts →
	Indirect evidence “Mitchell Daysh is a specialist environmental and planning consultancy with the right people to navigate New Zealand's most complex resource management challenges to our government…” Source: RevenueBase Database · checked Sep 28, 2026
17	GWE Consulting Engineers	Partial evidence	Takapuna, New ZealandHQ checked Sep 28, 2026	11-50	43 contacts →
	Partial evidence “GWE Consulting Engineers is a multi-disciplinary engineering consultancy providing geotechnical, civil and water, environmental, wastewater and stormwater engineering services and…” Source: RevenueBase Database · checked Sep 28, 2026
18	Cook Costello	Indirect evidence	Whangarei, New ZealandHQ checked Sep 28, 2026	11-50	40 contacts →
	Indirect evidence “Cook Costello is a New Zealand multidisciplinary engineering consultancy working across geotechnical, civil and structural engineering, geophysics, land surveying, land…” Source: RevenueBase Database · checked Sep 28, 2026
19	Geosolve LTD	Indirect evidence	South Dunedin, New ZealandHQ checked Sep 28, 2026	11-50	39 contacts →
	Indirect evidence “At GeoSolve we understand the importance of managing geological risk, and our specialist knowledge and proven track record means we can provide practical resilient solutions…” Source: RevenueBase Database · checked Sep 28, 2026
20	Engco Consulting Engineers	Indirect evidence	Christchurch, New ZealandHQ checked Sep 28, 2026	51-200	39 contacts →
	Indirect evidence “ENGCO is a multi-disciplinary national consultancy with expertise delivering large scale projects, worth in excess of $100 million, and at the boutique end of the market…” Source: RevenueBase Database · checked Sep 28, 2026
21	ACH Consulting Engineers	Indirect evidence	Auckland, New ZealandHQ checked Sep 28, 2026	11-50	38 contacts →
	Indirect evidence “Today ACH employs over 40 staff in their Auckland office with a number being Chartered Professional Engineers.” Source: RevenueBase Database · checked Sep 28, 2026
22	Cuttriss Consultants LTD	Indirect evidence	Lower Hutt/kāpiti Coast, New ZealandHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “Great People.” Source: RevenueBase Database · checked Sep 28, 2026
23	Initia	Indirect evidence	Auckland, New ZealandHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Initia is a specialist geotechnical engineering consultancy that provides design, advisory and construction observation services for building, infrastructure and earthworks…” Source: RevenueBase Database · checked Sep 28, 2026
24	Verum Group	Partial evidence	Christchurch, New ZealandHQ checked Sep 28, 2026	11-50	32 contacts →
	Partial evidence “Verum Group is an environmental research and consulting company, with specialist knowledge in Environmental and Occupational Hygiene monitoring, energy technologies and…” Source: RevenueBase Database · checked Sep 28, 2026
25	Brevity	Indirect evidence	Auckland, New ZealandHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “Brevity is the market leader in seismic design and compliance.” Source: RevenueBase Database · checked Sep 28, 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: geoscience 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 geoscience consulting firms.
Partial evidence: Its own public description names part of geoscience consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geoscience 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 180 geoscience consulting firms based in New Zealand

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,213 reachable decision-makers.

Free signup · no credit card

View the full list →

Geoscience consulting firms based in New Zealand at a glance

As of Sep 28, 2026

61.3%Verified-email coverage

29.1Average contacts per company

1-10Median size (employees)

28.3%Largest-city concentration · Auckland

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 180 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 geoscience 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 “geoscience 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 geoscience 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 geoscience 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, 3,213 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 28, 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.

Geoscience consulting firms 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 geoscience 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 geoscience consulting firms are there based in New Zealand?

RevenueBase identified 180 geoscience 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?

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

Which city has the most geoscience consulting firms?

Auckland leads with 51 headquartered companies, followed by Christchurch (32) and Wellington (11).

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 3,213 verified decision-maker contacts tracked across these 180 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 180 geoscience consulting firms based in New Zealand. Start with a free account, no credit card.

Download this list →

Related lists

Geoscience consulting firms by geography

Browse the directory

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.