# 28 leading environmental services companies in New Zealand

Tamtam tracks 28 environmental services companies headquartered in New Zealand. This list ranks all of them by number of employees on LinkedIn, led by Auckland Council, Department of Conservation (DOC) and Watercare Services Limited. Their median headcount is 502. The most common headquarters are Auckland (5), Christchurch (2) and Wellington (2).

These environmental services companies in New Zealand largely consist of governmental and quasi-governmental organizations responsible for public services and resource management. They range from large councils like Auckland Council, which handles waste and public services, to specialized entities such as Watercare Services Limited, focusing on water and wastewater infrastructure for Auckland. Tonkin + Taylor provides environmental and engineering consultancy, while WM New Zealand offers resource recovery and waste management.

A clear pattern is the dominance of local and regional government bodies. Most of the largest entities are city or regional councils, including Tauranga City Council and Hamilton City Council, indicating that environmental management and services are primarily delivered through public sector organizations across New Zealand.

🇳🇿 New Zealand · 28 companies · Updated Nov 15, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Auckland Council](https://www.tamtam.ai/c/auckland-council) (aucklandcouncil.govt.nz)<br>Providing governance, policies, and essential public services including waste management, consents, bylaws, events, and parks for Auckland region. | Government Administration | 🇳🇿 Auckland | 7,110 | 2010 |
| 2 | [Department of Conservation (DOC)](https://www.tamtam.ai/c/department-of-conservation-doc) (doc.govt.nz)<br>A government agency in New Zealand focused on conserving the country's natural and historic heritage through various conservation efforts nationwide | Government Administration | 🇳🇿 Wellington | 3,845 | 1987 |
| 3 | [Watercare Services Limited](https://www.tamtam.ai/c/watercare-services-limited) (watercare.co.nz)<br>Provides lifeline services, drinking water, wastewater treatment, and infrastructure planning for Aucklanders, protecting the environment, without chemicals, safely returning it. | Utilities | 🇳🇿 Auckland | 1,205 |  |
| 4 | [Tauranga City Council](https://www.tamtam.ai/c/tauranga-city-council) (tauranga.govt.nz)<br>A leading organization in Tauranga, New Zealand, providing infrastructure, services, and investment to enhance the city's livability and attract diverse talent | Government Administration | 🇳🇿 Tauranga | 971 |  |
| 5 | [Hamilton City Council](https://www.tamtam.ai/c/hamilton-city-council) (hamilton.govt.nz)<br>Local government focusing on community wellbeing, sustainable growth, environmental care, and fostering a welcoming, innovative, and vibrant city lifestyle. | Civic and Social Organizations | 🇳🇿 Hamilton | 940 |  |
| 6 | [Tonkin + Taylor](https://www.tamtam.ai/c/tonkin-taylor) (tonkintaylor.com)<br>Leading employee-owned environmental and engineering consultancy providing specialist services in geotechnical, civil, water resources, environmental science, and resource management since 1959 | Environmental Services | 🇳🇿 Auckland Central | 936 | 1959 |
| 7 | [WM New Zealand](https://www.tamtam.ai/c/wm-new-zealand) (wm.nz)<br>Leading environmental services provider in New Zealand, offering resource recovery, waste management, recycling, and sustainable solutions for a diverse range of clients | Environmental Services | 🇳🇿 Tamaki | 916 |  |
| 8 | [Environment Canterbury](https://www.tamtam.ai/c/environment-canterbury) (ecan.govt.nz)<br>Manage natural resources, support community hazard preparedness, and provide public transport services to promote sustainable, resilient, and connected region. | Government Administration | 🇳🇿 Christchurch | 813 | 1989 |
| 9 | [Dunedin City Council](https://www.tamtam.ai/c/dunedin-city-council) (dunedin.govt.nz)<br>Local government authority providing services and facilities in the Dunedin area, from parks and libraries to waste collection and community funding | Civic and Social Organizations | 🇳🇿 Dunedin | 723 |  |
| 10 | [Greater Wellington](https://www.tamtam.ai/c/greater-wellington) (gw.govt.nz)<br>Regional council managing environment, flood protection, land, parks, public transport, water supply, policy development, and climate change planning. | Government Administration | 🇳🇿 Wellington | 709 |  |
| 11 | [Palmerston North City Council](https://www.tamtam.ai/c/palmerston-north-city-council) (pncc.govt.nz)<br>Urban development and infrastructure management in the vibrant and diverse city of Palmerston North, New Zealand, focusing on community well-being and sustainability | Government Administration | 🇳🇿 Palmerston North | 554 |  |
| 12 | [Citycare Group](https://www.tamtam.ai/c/citycare-group) (citycare.co.nz)<br>Provider of maintenance and construction services in New Zealand, offering integrated solutions for key infrastructure assets with a focus on community well-being | Construction | 🇳🇿 Christchurch | 526 | 1999 |
| 13 | [New Plymouth District Council](https://www.tamtam.ai/c/new-plymouth-district-council) (npdc.govt.nz)<br>The company focuses on making New Plymouth District a Sustainable Lifestyle Capital, emphasizing natural beauty, thriving communities, and being the Most Liveable City | Government Administration | 🇳🇿 New Plymouth | 518 |  |
| 14 | [Hutt City Council](https://www.tamtam.ai/c/hutt-city-council) (huttcity.govt.nz)<br>Building a thriving, connected, and inclusive city focused on innovation, community partnerships, and sustainability, while embracing diversity and empowering residents | Government Relations Services | 🇳🇿 Lower Hutt | 502 |  |
| 15 | [Whangarei District Council](https://www.tamtam.ai/c/whangarei-district-council) (wdc.govt.nz)<br>Creating a vibrant community in Whangarei through a wide range of public services and facilities focused on enhancing quality of life for residents | Government Administration | 🇳🇿 Whangarei | 471 |  |
| 16 | [Queenstown Lakes District Council](https://www.tamtam.ai/c/queenstown-lakes-district-council) (qldc.govt.nz)<br>Local government supporting vibrant communities, enduring landscapes, and bold leadership in Queenstown Lakes District through policies, infrastructure, environmental health, and community engagement | Government Administration | 🇳🇿 Queenstown | 437 |  |
| 17 | [Enviro NZ](https://www.tamtam.ai/c/enviro-nz) (environz.co.nz)<br>Specializes in waste management and resource recovery, partnering with government, communities, and businesses to deliver sustainable environmental solutions. | Environmental Services | 🇳🇿 Auckland | 429 |  |
| 18 | [Wellington Water](https://www.tamtam.ai/c/wellington-water) (wellingtonwater.co.nz)<br>Managing water infrastructure assets for multiple councils in the Wellington region, focusing on water conservation, efficiency, and providing top-notch service Interested in making a difference? Join us! | Utilities | 🇳🇿 Lower Hutt | 416 | 2004 |
| 19 | [Toi Moana Bay of Plenty Regional Council](https://www.tamtam.ai/c/toi-moana-bay-of-plenty-regional-council) (boprc.govt.nz)<br>Monitoring environmental impacts, managing natural resources, flood control, transport planning, passenger services, navigation safety, supporting sustainable economic development. | Government Administration | 🇳🇿 Whakatane | 390 | 1989 |
| 20 | [Napier City Council](https://www.tamtam.ai/c/napier-city-council) (napier.govt.nz)<br>Napier focuses on investing in infrastructure and development to create a vibrant, cosmopolitan city, offering unique architecture, amenities, and economic opportunities | Government Administration | 🇳🇿 Napier | 373 |  |
| 21 | [Kāpiti Coast District Council](https://www.tamtam.ai/c/kapiti-coast-district-council) (kapiticoast.govt.nz)<br>The Kāpiti Coast District Council leads and represents the community, enabling decision-making to promote social, economic, environmental, and cultural wellbeing They facilitate solutions, advocate, develop resources, manage infrastructure, and plan for future needs | Government Administration | 🇳🇿 Paraparaumu | 347 |  |
| 22 | [Otago Regional Council](https://www.tamtam.ai/c/otago-regional-council) (orc.govt.nz)<br>Promoting sustainable development and resource management in Otago to preserve unique resources for future generations | Government Administration | 🇳🇿 Dunedin | 328 |  |
| 23 | [Waimakariri District Council](https://www.tamtam.ai/c/waimakariri-district-council) (waimakariri.govt.nz)<br>The company provides essential services and maintains a peaceful community in Waimakariri District through infrastructure maintenance and community support initiatives | Government Administration | 🇳🇿 Rangiora | 327 | 1989 |
| 24 | [InterGroup](https://www.tamtam.ai/c/intergroup) (intergroup.co.nz)<br>Specialized services provider with over 40 years of experience, offering project/contract management to government, industrial, offshore, and construction clients nationwide | Construction | 🇳🇿 Auckland | 295 | 1976 |
| 25 | [HW Richardson Group](https://www.tamtam.ai/c/hw-richardson-group) (hwr.co.nz)<br>New Zealand's largest privately owned business covering transport, petroleum, concrete, contracting, environmental, and quarrying sectors, keeping the country's infrastructure moving | Truck Transportation | 🇳🇿 Invercargill | 240 | 1916 |
| 26 | [Southland District Council](https://www.tamtam.ai/c/southland-district-council) (southlanddc.govt.nz)<br>The company manages a large area in Southland, New Zealand, providing essential services like water, waste management, parks, and regulatory services | Government Administration | 🇳🇿 Invercargill | 186 | 1989 |
| 27 | [Treescape New Zealand](https://www.tamtam.ai/c/treescape-new-zealand) (treescape.co.nz)<br>Green Asset Management specialists with a focus on large scale landscape planting projects, tree pruning, trimming, and cutting services | Environmental Services | 🇳🇿 Auckland | 185 | 1981 |
| 28 | [Eurofins-ELS](https://www.tamtam.ai/c/eurofins-els) (eurofins.co.nz)<br>A leading laboratory in New Zealand, offering analytical testing services in environmental, food, pharmaceutical products, agroscience, genomics, and central laboratory services | Environmental Services | 🇳🇿 | 38 | 1994 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 15, 2026.

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## The same list elsewhere

- [Environmental services companies in the world](https://www.tamtam.ai/l/environmental-services-companies-in-the-world) (4,213)

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Source: https://www.tamtam.ai/l/environmental-services-companies-new-zealand
