Company lists · Data refreshed September 2026

Top 25 Environmental consulting firms based in New Zealand

Name: Environmental 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 2, 2026 156 companies tracked

RevenueBase identified 156 environmental consulting firms headquartered in New Zealand as of September 2026 and tracks 2,477 professional contacts across them, including 1,200 with verified work emails and 165 with mobile numbers. Auckland is the largest hub.

This list covers environmental 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 2, 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 RevenueBase Smart Search rating on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

156Companies

2,477Contacts tracked

1,200Verified emails

165Mobile numbers

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The 25 largest environmental consulting firms based in New Zealand

Ranked by team size

Top 25 of 156 environmental consulting firms based in New Zealand, ranked by team size, largest first. Data refreshed Sep 2, 2026. RevenueBase Smart Search rates how each company's information relates to environmental 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	Opus International Consultants Limited	Indirect evidence	Wellington, New Zealand	1,001-5,000	569 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 2, 2026
2	Pattle Delamore Partners	Partial evidence	Invercargill, New Zealand	201-500	272 contacts →
	Partial evidence “PDP is one of Aotearoa New Zealand’s leading environmental science, engineering, and advisory consultancies.” Source: RevenueBase Database · checked Sep 2, 2026
3	EHS Support	Partial evidence	Auckland, New Zealand	201-500	237 contacts →
	Partial evidence “EHS Support is a global family of engineers, geologists, scientists, and technical experts who specialize in complex environmental, health, and safety (EH & S) challenges across…” Source: RevenueBase Database · checked Sep 2, 2026
4	Babbage Consultants Limited	Indirect evidence	Hamilton, New Zealand	201-500	231 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 2, 2026
5	MBC	Partial evidence	Papanui, New Zealand	11-50	99 contacts →
	Partial evidence “MBC is an environmental solutions company based in the South Island of New Zealand.” Source: RevenueBase Database · checked Sep 2, 2026
6	Fraser Thomas LTD	Partial evidence	Mount Maunganui, New Zealand	51-200	76 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 2, 2026
7	Mitchell Daysh	Partial evidence	Nelson, New Zealand	11-50	45 contacts →
	Partial 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 2, 2026
8	Indufor LTD	Partial evidence	New Zealand	51-200	43 contacts →
	Partial evidence “Indufor is a global leader in natural resource management, investment advisory, and strategic industrial development consulting.” Source: RevenueBase Database · checked Sep 2, 2026
9	AWA Environmental	Partial evidence	Wellington, New Zealand	11-50	37 contacts →
	Partial evidence “Awa Environmental is shaping stormwater to reduce flood risk, protect critical assets and infrastructure, and build resilient communities and thriving ecosystems.” Source: RevenueBase Database · checked Sep 2, 2026
10	ACH Consulting Engineers	Indirect evidence	Auckland, New Zealand	11-50	37 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 2, 2026
11	Verum Group	Strong evidence	Hamilton, New Zealand	11-50	32 contacts →
	Strong 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 2, 2026
12	Blue Barn Consulting LTD	Partial evidence	Auckland, New Zealand	11-50	28 contacts →
	Partial evidence “Blue Barn Consulting was established in 2008, and is proudly 100% New Zealand owned and operated.” Source: RevenueBase Database · checked Sep 2, 2026
13	Geotheta Consulting Engineers And Scientists	Indirect evidence	Hastings, New Zealand	51-200	28 contacts →
	Indirect evidence “Tailings management today requires more than engineering excellence, it demands independent oversight, structured governance, and defensible risk frameworks.” Source: RevenueBase Database · checked Sep 2, 2026
14	Bonisch	Indirect evidence	Te Anau, New Zealand	11-50	27 contacts →
	Indirect evidence “Bonisch Consultants is a progressive and innovative business based in Invercargill with branch offices in Te Anau and Christchurch.” Source: RevenueBase Database · checked Sep 2, 2026
15	SQN	Strong evidence	Whangarei, New Zealand	11-50	27 contacts →
	Strong evidence “SQN Consulting is a leading environmental consultancy in New Zealand, providing a wide range of services in asbestos management, contaminated land, industrial trade activities…” Source: RevenueBase Database · checked Sep 2, 2026
16	Novo Group Limited	Indirect evidence	Christchurch, New Zealand	11-50	22 contacts →
	Indirect evidence “Novo Group Limited is a professional services consultancy specialising in: − resource management, town planning and land use development; − traffic planning and engineering; and −…” Source: RevenueBase Database · checked Sep 2, 2026
17	Tektus	Indirect evidence	Auckland, New Zealand	11-50	20 contacts →
	Indirect evidence “In early 2015, Tektus was formed to create a distinct multi-disciplinary practice with strong values.” Source: RevenueBase Database · checked Sep 2, 2026
18	Chemsafety LTD	Indirect evidence	Wellington, New Zealand	11-50	18 contacts →
	Indirect evidence “Using Science to Keep People Safe & Healthy Chemsafety experienced consultants become part of your company team, working to provide effective and efficient solutions for your…” Source: RevenueBase Database · checked Sep 2, 2026
19	Mine Waste Management	Partial evidence	Christchurch, New Zealand	11-50	17 contacts →
	Partial evidence “Mine Waste Management (MWM), a Green Road company, is an environmental consultancy that provides practical solutions to mine waste management, for the mining industry.” Source: RevenueBase Database · checked Sep 2, 2026
20	Bioresearches A Babbage Company	Partial evidence	Hamilton, New Zealand	11-50	17 contacts →
	Partial evidence “Bioresearches Group Limited is a management consulting company based out of Level 4/68 Beach Road, Auckland CBD, Auckland, New Zealand.” Source: RevenueBase Database · checked Sep 2, 2026
21	Margules Groome Consulting	Indirect evidence	New Zealand	11-50	16 contacts →
	Indirect evidence “Margules Groome are independent consultants specialising in the forestry, wood products, bio solutions, pulp & paper, and agricultural tree crop sectors.” Source: RevenueBase Database · checked Sep 2, 2026
22	Williamson Water & Land Advisory	Partial evidence	Kumeu, New Zealand	11-50	16 contacts →
	Partial evidence “Williamson Water & Land Advisory (WWLA) is a New Zealand based, employee owned, niche environmental consultancy.” Source: RevenueBase Database · checked Sep 2, 2026
23	Irricon	Partial evidence	Timaru South, New Zealand	11-50	15 contacts →
	Partial evidence “Irricon Resource Solutions is a leading environmental consultancy based throughout Canterbury, Otago and the North Island.” Source: RevenueBase Database · checked Sep 2, 2026
24	E3scientific	Partial evidence	Arrowtown, New Zealand	11-50	15 contacts →
	Partial evidence “e3Scientific is a New Zealand owned and operated environmental science consultancy.” Source: RevenueBase Database · checked Sep 2, 2026
25	Kāhu Environmental Limited	Partial evidence	Martinborough, New Zealand	11-50	15 contacts →
	Partial evidence “Our team of planning, kaupapa taiao, and ecology specialists can help you design and carry out exceptional policy reviews and environmental projects.” Source: RevenueBase Database · checked Sep 2, 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: environmental 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 environmental consulting firms.
Partial evidence: Its own public description names part of environmental consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental 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 156 environmental consulting firms based in New Zealand

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Environmental consulting firms based in New Zealand at a glance

As of Sep 2, 2026

48.4%Verified-email coverage

6.7%Mobile-number coverage

15.9Average contacts per company

1-10Median size (employees)

28.8%Largest-city concentration · Auckland

Sep 2, 2026Page data refreshed

Companies by employee count

1-10

110

11-50

51-200

201-500

1,001-5,000

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 environmental 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 “environmental 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 environmental 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 environmental 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, 1,200 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 2, 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.

Environmental consulting firms by metro

Environmental consulting firms in Auckland45

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 environmental 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 environmental consulting firms are there based in New Zealand?

RevenueBase identified 156 environmental 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?

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

Which city has the most environmental consulting firms?

Auckland leads with 45 headquartered companies, followed by Christchurch (24) and Wellington (10).

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 1,200 verified decision-maker contacts tracked across these 156 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 2, 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.