Company lists · Data refreshed November 2026

Top 25 Wastewater treatment engineering services based in New Zealand

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

Compiled by the RevenueBase Data Team Data refreshed Nov 3, 2026 48 companies tracked

RevenueBase identified 48 company matches for wastewater treatment engineering services associated with New Zealand as of November 2026 and tracks 282 professional contacts across them, including 124 with verified work emails. Auckland is the largest hub.

This list covers company matches for wastewater treatment engineering services associated with New Zealand, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Nov 3, 2026 How this list was built

48Companies

282Contacts tracked

124Verified emails

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

The 25 largest wastewater treatment engineering services based in New Zealand

Ranked by team size

Top 25 of 48 company matches for wastewater treatment engineering services based in New Zealand, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 3, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	LUTRA	Exact match	Lower Hutt, New ZealandHQ recorded Nov 3, 2026	11-50	46 contacts →
	Exact match “Established in 2006, Lutra are a team of water and wastewater specialist solutions providers with a team of over 39 spread throughout New Zealand.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
2	Devan Plastics Limited	Exact match	Tauranga, New ZealandHQ recorded Nov 3, 2026	51-200	18 contacts →
	Exact match “We manufacture and design Water and Waste Water Solutions for the Urban, Rural and Commercial Market.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
3	Sitecare	Exact match	Taupo, New ZealandHQ recorded Nov 3, 2026	51-200	16 contacts →
	Exact match “For over 25 years, SiteCare has been a prominent national leader in providing a diverse range of environmental and industrial services.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
4	SWE Southern Water Engineering	Exact match	Blenheim, New ZealandHQ recorded Nov 3, 2026	11-50	14 contacts →
	Exact match “SWE (Southern Water Engineering) is a leading Marlborough-based engineering company specialising in water engineering, electrical and automation solutions, and pumping technology.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
5	Bellcon Limited	Exact match	Ruakaka, New ZealandHQ recorded Nov 3, 2026	11-50	14 contacts →
	Exact match “We’re proud to be a construction company delivering project management, engineering, and commissioning services for water and wastewater infrastructure.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
6	Innoflow Technologies NZ Limited	Exact match	Dairy Flat, New ZealandHQ recorded Nov 3, 2026	11-50	13 contacts →
	Exact match “Wastewater treatment, Community Pressure Sewers, Wastewater Design, Build & Operate.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
7	HAL Consulting LTD	Exact match	Parnell, New ZealandHQ recorded Nov 3, 2026	11-50	11 contacts →
	Exact match “HAL Consulting Ltd (HAL) is a niche engineering consultancy that specialises in wastewater, stormwater and water supply network modelling and strategic planning, and data…” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
8	Mason Engineers NZ LTD	Exact match	East Tamaki, New ZealandHQ recorded Nov 3, 2026	11-50	10 contacts →
	Exact match “Mason Engineers (NZ) Limited is a company whose name has been synonymous with engineering in New Zealand for more than seventy years.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
9	Brickhouse Technologies	Exact match	Hamilton, New ZealandHQ recorded Nov 3, 2026	1-10	9 contacts →
	Exact match “From helping local authorities manage their municipal water treatment systems through to providing bespoke solutions for meat, dairy, food processing, and industrial clients…” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
10	Oasis Clearwater Environmental Systems	Exact match	Rolleston, New ZealandHQ recorded Nov 3, 2026	11-50	9 contacts →
	Exact match “Oasis Clearwater are a leading manufacturer of onsite wastewater treatment systems.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
11	Neuflow Projects	Exact match	Rukuhia, New ZealandHQ recorded Nov 3, 2026	1-10	7 contacts →
	Exact match “Neuflow Projects are a team of project specialists encompassing innovative conceptual planning, investigations and feasibility studies, preliminary designs, detailed designs…” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
12	Allflow NZ	Exact match	Richmond, New ZealandHQ recorded Nov 3, 2026	1-10	6 contacts →
	Exact match “Allflow has been serving the top of the South since the 1960s, including waste water services from 1977.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
13	Hydroflux NZ	Exact match	Auckland, New ZealandHQ recorded Nov 3, 2026	51-200	5 contacts →
	Exact match “Hydroflux brings together engineering, technology and sustainability expertise to solve complex water and wastewater challenges across New Zealand.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
14	Austin Bluewater	Exact match	Christchurch, New ZealandHQ recorded Nov 3, 2026	11-50	5 contacts →
	Exact match “We are a proven leader with over 25 years hands-on experience designing and manufacturing waste water treatment systems.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
15	NEO Consulting	Exact match	Newmarket, New ZealandHQ recorded Nov 3, 2026	11-50	5 contacts →
	Exact match “We came from golden beginnings, being born from too much success and rapid growth.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
16	Jonassen Industrial Projects Limited	Exact match	Auckland, New ZealandHQ recorded Nov 3, 2026	1-10	5 contacts →
	Exact match “Jonassen Industrial Projects Limited are consultants in process engineering, industrial oven design, heating and drying systems, wastewater threatment plants and de-watering…” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
17	Ecocycle	Exact match	Tauranga, New ZealandHQ recorded Nov 3, 2026	1-10	5 contacts →
	Exact match “Ecocycle is your go-to source for clever, efficient, and affordable onsite wastewater treatment solutions.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
18	Apex Water LTD	Exact match	Timaru, New ZealandHQ recorded Nov 3, 2026	51-200	3 contacts →
	Exact match “Apex Water promises guaranteed environmental performance and that makes us leaders in water & wastewater treatment.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
19	Aqua-K NZ Limited	Exact match	Pukekohe, New ZealandHQ recorded Nov 3, 2026	1-10	3 contacts →
	Exact match “Specialising in end-to-end wastewater management, we offer bespoke solutions that span from initial concept to fully commissioned plants.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
20	Water Treatment Engineers NZ Limited	Exact match	Auckland, New ZealandHQ recorded Nov 3, 2026	1-10	3 contacts →
	Exact match “Water Treatment Engineers NZ Limited is a water treatment engineering consultancy based in New Zealand, specializing in providing comprehensive water treatment solutions tailored…” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
21	Civil HUB Consultants LTD	Exact match	Auckland, New ZealandHQ recorded Nov 3, 2026	1-10	3 contacts →
	Exact match “Civil Engineering Services - Public Infrastructure - Land Development and Subdivision - Flood Analysis - Detention Tank - Stormwater Treatment Systems - On-site Sewer Disposal -…” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
22	Biolytix Limited	Exact match	Auckland, New ZealandHQ recorded Nov 3, 2026	11-50	2 contacts →
	Exact match “Manufacturers of the Biolytix Wastewater Treatment System.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
23	Ionic Watercare	Exact match	Sockburn, New ZealandHQ recorded Nov 3, 2026	1-10	2 contacts →
	Exact match “Ionic Watercare is a company based out of New Zealand.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
24	E And J Contractors	Exact match	Tauhara, New ZealandHQ recorded Nov 3, 2026	11-50	2 contacts →
	Exact match “E&J Contractors is a long-established Drainage and Contracting Company based in Taupo with projects throughout New Zealand.” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase
25	Three Waters Limited	Exact match	Lower Hutt, New ZealandHQ recorded Nov 3, 2026	11-50	2 contacts →
	Exact match “Three Waters Limited provides specialist water supply, wastewater and stormwater engineering consulting advice to the public and private sectors with a focus on municipal…” Recorded in the RevenueBase company graph · Nov 3, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “wastewater treatment engineering services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 48 wastewater treatment engineering services based in New Zealand

See the full list, filter by size, metro and specialty, and access 124 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Wastewater treatment engineering services based in New Zealand at a glance

As of Nov 3, 2026

44.0%Verified-email coverage

5.9Average contacts per company

1-10Median size (employees)

22.9%Largest-city concentration · Auckland

Nov 3, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 48 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with New Zealand whose business descriptions match “wastewater treatment engineering services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 124 professional contacts with verified work emails across the full matched dataset. 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 November 3, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “wastewater treatment engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater treatment engineering services are there based in New Zealand?

RevenueBase identified 48 company matches for wastewater treatment engineering services associated with New Zealand as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

LUTRA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most wastewater treatment engineering services?

Auckland leads with 11 company records, followed by Hamilton (5) and Christchurch (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 124 professional contacts with verified work emails tracked across these 48 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 3, 2026.

Ready to reach these companies? Verified emails and direct dials for all 48 wastewater treatment engineering services based in New Zealand. Start with a free account, no credit card.

Download this list →

Related lists

Wastewater treatment engineering services 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 SmartSearch, 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.