Company lists · Data refreshed September 2026

Top 25 Environmental engineering firms based in New Zealand

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 67 companies tracked

RevenueBase identified 67 environmental engineering firms headquartered in New Zealand as of September 2026 and tracks 2,814 professional contacts across them, including 1,776 with verified work emails. Auckland is the largest hub.

This list covers environmental engineering 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 16, 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 16, 2026 86% judged on-target in blind review

67Companies

2,814Contacts tracked

1,776Verified emails

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The 25 largest environmental engineering firms based in New Zealand

Ranked by team size

Top 25 of 67 environmental engineering firms based in New Zealand, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to environmental engineering 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 16, 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 16, 2026
2	Opus International Consultants Limited	Indirect evidence	Wellington, New ZealandHQ checked Sep 16, 2026	1,001-5,000	568 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
3	Pattle Delamore Partners	Strong evidence	Auckland, New ZealandHQ checked Sep 16, 2026	201-500	277 contacts →
	Strong evidence “PDP is one of Aotearoa New Zealand’s leading environmental science, engineering, and advisory consultancies.” Source: RevenueBase Database · checked Sep 16, 2026
4	Riley Consultants	Indirect evidence	Takapuna, New ZealandHQ checked Sep 16, 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 16, 2026
5	LDE Engineers Scientists	Strong evidence	Gisborne, New ZealandHQ checked Sep 16, 2026	51-200	81 contacts →
	Strong evidence “LDE are specialists in geotechnical, civil, environmental and structural engineering.” Source: RevenueBase Database · checked Sep 16, 2026
6	TM Consultants	Partial evidence	Christchurch, New ZealandHQ checked Sep 16, 2026	51-200	69 contacts →
	Partial evidence “New Zealand’s multi-award winning, sustainable-passionate professional consulting engineering partners.” Source: RevenueBase Database · checked Sep 16, 2026
7	GWE Consulting Engineers	Strong evidence	Takapuna, New ZealandHQ checked Sep 16, 2026	11-50	43 contacts →
	Strong 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 16, 2026
8	CGW Consulting Engineers	Partial evidence	Nelson, New ZealandHQ checked Sep 16, 2026	11-50	40 contacts →
	Partial evidence “CGW Consulting Engineers is a multi-discipline consulting engineering firm with its head office in Nelson serving our clients’ needs for projects throughout New Zealand and…” Source: RevenueBase Database · checked Sep 16, 2026
9	ACH Consulting Engineers	Indirect evidence	Auckland, New ZealandHQ checked Sep 16, 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 16, 2026
10	AWA Environmental	Partial evidence	Wellington, New ZealandHQ checked Sep 16, 2026	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 16, 2026
11	Blue Barn Consulting LTD	Indirect evidence	Auckland, New ZealandHQ checked Sep 16, 2026	11-50	28 contacts →
	Indirect evidence “Blue Barn Consulting was established in 2008, and is proudly 100% New Zealand owned and operated.” Source: RevenueBase Database · checked Sep 16, 2026
12	Soil & Rock Consultants	Strong evidence	Henderson, New ZealandHQ checked Sep 16, 2026	51-200	28 contacts →
	Strong evidence “With a rich legacy spanning over three decades, Soil & Rock Consultants stand at the forefront of the geotechnical, environmental, civil, and geological engineering landscape in…” Source: RevenueBase Database · checked Sep 16, 2026
13	Tektus	Indirect evidence	Auckland, New ZealandHQ checked Sep 16, 2026	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 16, 2026
14	Williamson Water & Land Advisory	Partial evidence	Kumeu, New ZealandHQ checked Sep 16, 2026	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 16, 2026
15	Zealandia Consulting LTD	Indirect evidence	Auckland, New ZealandHQ checked Sep 16, 2026	11-50	13 contacts →
	Indirect evidence “Local knowledge, global thinking, future-ready outcomes.” Source: RevenueBase Database · checked Sep 16, 2026
16	Clendon Burns & Park LTD	Indirect evidence	Wellington, New ZealandHQ checked Sep 16, 2026	11-50	12 contacts →
	Indirect evidence “Clendon Burns & Park ltd has operated as a firm of Consulting Structural and Civil Engineers in Wellington for over 60 years.” Source: RevenueBase Database · checked Sep 16, 2026
17	Berry Simons	Indirect evidence	Auckland Cbd, New ZealandHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence “Success in your RMA project is our sole focus.” Source: RevenueBase Database · checked Sep 16, 2026
18	Land River SEA Consulting	Partial evidence	Christchurch, New ZealandHQ checked Sep 16, 2026	1-10	10 contacts →
	Partial evidence “Specialist engineering consulting firm with expertise in hydraulic modelling of rivers and streams, river engineering, geomorphology, hydrology and hydrologic modelling, remote…” Source: RevenueBase Database · checked Sep 16, 2026
19	CLC Consulting Group Limited	Strong evidence	Auckland, New ZealandHQ checked Sep 16, 2026	11-50	9 contacts →
	Strong evidence “We offer Consulting Services in the following fields: Civil & Environmental Engineering, Structural Engineering, Land Surveying and Resource Management Planning.” Source: RevenueBase Database · checked Sep 16, 2026
20	Smart Alliances Limited	Partial evidence	Blenheim, New ZealandHQ checked Sep 16, 2026	11-50	9 contacts →
	Partial evidence “Smart Alliances delivers inter-disciplinary engineering, resource management and architecture solutions for their clients - from simple compliance certification to fully…” Source: RevenueBase Database · checked Sep 16, 2026
21	Deane Consultancy LTD	Partial evidence	Auckland & Northland, New ZealandHQ checked Sep 16, 2026	11-50	9 contacts →
	Partial evidence “We are a consulting engineering firm that offers a comprehensive range of geotechnical, civil & structural engineering services throughout Auckland and Northland.” Source: RevenueBase Database · checked Sep 16, 2026
22	Vision Consulting Engineers, NZ	Strong evidence	Kerikeri, New ZealandHQ checked Sep 16, 2026	1-10	8 contacts →
	Strong evidence “At VISION we pride ourselves on delivering high quality solutions for environmental, engineering and planning challenges.” Source: RevenueBase Database · checked Sep 16, 2026
23	Blueline Consulting NZ	Indirect evidence	Taupo, New ZealandHQ checked Sep 16, 2026	11-50	7 contacts →
	Indirect evidence “We are a forward-thinking consultancy driven by our passion for pioneering design concepts and advancing sustainable solutions.” Source: RevenueBase Database · checked Sep 16, 2026
24	RDA Consulting	Partial evidence	Invercargill, New ZealandHQ checked Sep 16, 2026	11-50	7 contacts →
	Partial evidence “We are a multi-disciplinary team providing holistic, leading edge environmental, civil and geotechnical solutions to improve the interaction of enterprise with soils, air, water…” Source: RevenueBase Database · checked Sep 16, 2026
25	Momentum Planning And Design	Partial evidence	Tauranga, New ZealandHQ checked Sep 16, 2026	1-10	7 contacts →
	Partial evidence “Momentum Planning and Design is a boutique consultancy firm based in Tauranga, we specialise in environmental planning, urban design and landscape architecture.” Source: RevenueBase Database · checked Sep 16, 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 engineering 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 engineering firms.
Partial evidence: Its own public description names part of environmental engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental engineering 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 67 environmental engineering firms based in New Zealand

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Environmental engineering firms based in New Zealand at a glance

As of Sep 16, 2026

63.1%Verified-email coverage

42.0Average contacts per company

11-50Median size (employees)

43.3%Largest-city concentration · Auckland

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 67 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 environmental engineering 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 engineering 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 engineering 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 engineering 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, 1,776 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 16, 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 engineering firms by metro

Environmental engineering firms in Auckland29

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 engineering 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 engineering firms are there based in New Zealand?

RevenueBase identified 67 environmental engineering 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 environmental engineering firms?

Auckland leads with 29 headquartered companies, followed by Christchurch (8) and Wellington (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 1,776 verified decision-maker contacts tracked across these 67 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 16, 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.