Company lists · Data refreshed September 2026

Top 25 Potable water system builders based in New Zealand

Name: Potable water system builders based in New Zealand
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 50 companies tracked

RevenueBase identified 50 potable water system builders headquartered in New Zealand as of September 2026 and tracks 782 professional contacts across them, including 367 with verified work emails. Auckland is the largest hub.

This list covers potable water system builders 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 20, 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 20, 2026 86% judged on-target in blind review

50Companies

782Contacts tracked

367Verified emails

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The 25 largest potable water system builders based in New Zealand

Ranked by team size

Top 25 of 50 potable water system builders based in New Zealand, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to potable water system builders: 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	HUMES	Strong evidence	Auckland, New ZealandHQ checked Sep 20, 2026	201-500	209 contacts →
	Strong evidence “Humes is a leading manufacturer and supplier of systems for managing water and other utilities, primarily in urban environments and roading.” Source: RevenueBase Database · checked Sep 20, 2026
2	Citycare Water	Partial evidence	Christchurch, New ZealandHQ checked Sep 20, 2026	501-1,000	103 contacts →
	Partial evidence “Citycare Water is New Zealand's most trusted three waters provider in New Zealand.” Source: RevenueBase Database · checked Sep 20, 2026
3	Filtec LTD	Strong evidence	Mt Wellington, New ZealandHQ checked Sep 20, 2026	51-200	86 contacts →
	Strong evidence “FILTEC - Making Water Safer Experts in supplying and servicing water and wastewater treatment systems.” Source: RevenueBase Database · checked Sep 20, 2026
4	Pipeline & Civil LTD	Indirect evidence	Auckland, New ZealandHQ checked Sep 20, 2026	51-200	56 contacts →
	Indirect evidence “Pipeline and Civil are proven to provide innovative and technically sound solutions to complex projects involving critical assets; designed to mitigate risks while guarding a…” Source: RevenueBase Database · checked Sep 20, 2026
5	LUTRA	Partial evidence	Lower Hutt, New ZealandHQ checked Sep 20, 2026	11-50	44 contacts →
	Partial evidence “Established in 2006, Lutra are a team of water and wastewater specialist solutions providers with a team of over 39 spread throughout New Zealand.” Source: RevenueBase Database · checked Sep 20, 2026
6	Watersmart	Partial evidence	Auckland, New ZealandHQ checked Sep 20, 2026	11-50	26 contacts →
	Partial evidence “Trusted, Innovative, Water Solutions.” Source: RevenueBase Database · checked Sep 20, 2026
7	Devan Plastics Limited	Partial evidence	Tauranga, New ZealandHQ checked Sep 20, 2026	51-200	18 contacts →
	Partial evidence “We manufacture and design Water and Waste Water Solutions for the Urban, Rural and Commercial Market.” Source: RevenueBase Database · checked Sep 20, 2026
8	Waipa Civil LTD	Indirect evidence	Cambridge, New ZealandHQ checked Sep 20, 2026	51-200	18 contacts →
	Indirect evidence “Civil construction firm Waipa Civil assists local councils and construction companies throughout the greater Waikato region and Bay of Plenty area.” Source: RevenueBase Database · checked Sep 20, 2026
9	Utilities Infrastructure NZ	Indirect evidence	Rolleston, New ZealandHQ checked Sep 20, 2026	51-200	13 contacts →
	Indirect evidence “Established in 2013 we have gone from strength to strength through the commitment of our people and the investment in our specialised plant and equipment, Focused on providing…” Source: RevenueBase Database · checked Sep 20, 2026
10	SWE Southern Water Engineering	Partial evidence	Blenheim, New ZealandHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “SWE (Southern Water Engineering) is a leading Marlborough-based engineering company specialising in water engineering, electrical and automation solutions, and pumping technology.” Source: RevenueBase Database · checked Sep 20, 2026
11	Bellcon Limited	Partial evidence	Ruakaka, New ZealandHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “We’re proud to be a construction company delivering project management, engineering, and commissioning services for water and wastewater infrastructure.” Source: RevenueBase Database · checked Sep 20, 2026
12	Drainways Contracting LTD	Strong evidence	Twyford, New ZealandHQ checked Sep 20, 2026	11-50	11 contacts →
	Strong evidence “We provide for the health and well being of communities through the construction of fresh water and drainage systems that are built to last” Source: RevenueBase Database · checked Sep 20, 2026
13	DEECO	Indirect evidence	Alicetown, New ZealandHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “Founded in 1938, Deeco Services Limited combines the best from tradition, experience and modern management.” Source: RevenueBase Database · checked Sep 20, 2026
14	Mason Engineers NZ LTD	Indirect evidence	East Tamaki, New ZealandHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “Mason Engineers (NZ) Limited is a company whose name has been synonymous with engineering in New Zealand for more than seventy years.” Source: RevenueBase Database · checked Sep 20, 2026
15	Northwater	Indirect evidence	Auckland, New ZealandHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “NorthWater specializes in watermain installation, Butt welding and Electrofusion welding, Pressure Testing, Ozone Pipeline Disinfection, Chlorination's, Pipeline Connections and…” Source: RevenueBase Database · checked Sep 20, 2026
16	G P Friel LTD	Indirect evidence	Wellington, New ZealandHQ checked Sep 20, 2026	11-50	7 contacts →
	Indirect evidence “GP Friel Ltd.” Source: RevenueBase Database · checked Sep 20, 2026
17	Hopper Construction LTD	Indirect evidence	Orewa, New ZealandHQ checked Sep 20, 2026	51-200	6 contacts →
	Indirect evidence “Hopper Construction is an established civil construction company located in Orewa, Auckland.” Source: RevenueBase Database · checked Sep 20, 2026
18	Spring Water Solutions	Partial evidence	Auckland, New ZealandHQ checked Sep 20, 2026	11-50	6 contacts →
	Partial evidence “In today’s world, access to healthy, clean water is more important than ever.” Source: RevenueBase Database · checked Sep 20, 2026
19	FPC NZ	Strong evidence	Mount Maunganui, New ZealandHQ checked Sep 20, 2026	11-50	5 contacts →
	Strong evidence “Filtration & Pumping Commercial (FPC) is a New Zealand–based specialist in commercial pool, aquatic, and water treatment systems, delivering design, supply, installation…” Source: RevenueBase Database · checked Sep 20, 2026
20	Arawai Engineering Consulting	Partial evidence	New Plymouth, New ZealandHQ checked Sep 20, 2026	1-10	4 contacts →
	Partial evidence “We assist in the design and construction management of above and below ground infrastructure; from buildings to land development, roading, and three waters networks.” Source: RevenueBase Database · checked Sep 20, 2026
21	Pipeline & Infrastructure North LTD	Indirect evidence	Wainui, New ZealandHQ checked Sep 20, 2026	11-50	4 contacts →
	Indirect evidence “Pipeline & Infrastructure (North) Ltd are an established Civil Engineering Contractor, specialising in the construction, repair, and rehabilitation of large diameter pipelines and…” Source: RevenueBase Database · checked Sep 20, 2026
22	Apex Water LTD	Partial evidence	Timaru, New ZealandHQ checked Sep 20, 2026	51-200	3 contacts →
	Partial evidence “Apex Water promises guaranteed environmental performance and that makes us leaders in water & wastewater treatment.” Source: RevenueBase Database · checked Sep 20, 2026
23	Pomco Services	Partial evidence	Henderson, New ZealandHQ checked Sep 20, 2026	11-50	3 contacts →
	Partial evidence “Pomco Services Ltd is a leading Water Reticulation construction and maintenance Company owned and operated by Chris Padden and Simon Hosking who between them have over 40 years of…” Source: RevenueBase Database · checked Sep 20, 2026
24	Aqua-K NZ Limited	Indirect evidence	Pukekohe, New ZealandHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Specialising in end-to-end wastewater management, we offer bespoke solutions that span from initial concept to fully commissioned plants.” Source: RevenueBase Database · checked Sep 20, 2026
25	Ching Contracting	Indirect evidence	Nelson, New ZealandHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 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: potable water system builders. 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 potable water system builders.
Partial evidence: Its own public description names part of potable water system builders, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name potable water system builders. 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 50 potable water system builders based in New Zealand

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Potable water system builders based in New Zealand at a glance

As of Sep 20, 2026

46.9%Verified-email coverage

15.6Average contacts per company

11-50Median size (employees)

28.0%Largest-city concentration · Auckland

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 50 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 potable water system builders, 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 “potable water system builders”. 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 potable water system builders), 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 potable water system builders, 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, 367 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 20, 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.

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 potable water system builders, 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 potable water system builders are there based in New Zealand?

RevenueBase identified 50 potable water system builders 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?

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

Which city has the most potable water system builders?

Auckland leads with 14 headquartered companies, followed by Cambridge (4) and New Plymouth (2).

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 367 verified decision-maker contacts tracked across these 50 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 20, 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.