Company lists · Data refreshed September 2026

Top 25 Hydropower engineering consultancy companies based in New Zealand

Name: Hydropower engineering consultancy companies based in New Zealand
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 70 companies tracked

RevenueBase identified 70 company matches for hydropower engineering consultancy companies associated with New Zealand as of September 2026 and tracks 2,533 professional contacts across them, including 758 with verified work emails and 62 with mobile numbers. Auckland is the largest hub.

This list covers company matches for hydropower engineering consultancy companies 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 September 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 Sep 3, 2026 How this list was built

70Companies

2,533Contacts tracked

758Verified emails

62Mobile numbers

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The 25 largest hydropower engineering consultancy companies based in New Zealand

Ranked by team size

Top 25 of 70 company matches for hydropower engineering consultancy companies based in New Zealand, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 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	Opus International Consultants Limited	Exact match	Wellington, New ZealandHQ recorded Sep 3, 2026	1,001-5,000	569 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
2	Ergo Consulting	Exact match	Auckland, New ZealandHQ recorded Sep 3, 2026	51-200	110 contacts →
	Exact match “Ergo aspires to be New Zealand’s first choice provider of engineering consultancy services to the power and energy industry.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
3	Riley Consultants	Exact match	Takapuna, New ZealandHQ recorded Sep 3, 2026	51-200	86 contacts →
	Exact match “Our company has evolved from humble yet visionary origins to become the multi-disciplinary consultancy it is today.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
4	Powell Fenwick	Exact match	Christchurch, New ZealandHQ recorded Sep 3, 2026	51-200	79 contacts →
	Exact match “Powell Fenwick is a Christchurch based engineering consultancy firm with significant experience in all facets of building design and construction.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
5	Edison Consulting Group	Exact match	Auckland, New ZealandHQ recorded Sep 3, 2026	51-200	75 contacts →
	Exact match “Edison Consulting Group provides specialist project management, design engineering and advisory services, delivering successful energy projects to the New Zealand energy sector.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
6	Groundline	Exact match	Christchurch, New ZealandHQ recorded Sep 3, 2026	51-200	71 contacts →
	Exact match “GROUNDLINE is a global engineering consultancy dedicated to keeping the lights on, with offices in Australia, New Zealand, and the United Kingdom.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
7	MTL NZ	Exact match	New ZealandHQ recorded Sep 3, 2026	51-200	64 contacts →
	Exact match “Founded in 1994, MTL specialises in engineering design and project management for renewable energy, water infrastructure and industrial projects.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
8	GWE Consulting Engineers	Exact match	Takapuna, New ZealandHQ recorded Sep 3, 2026	11-50	42 contacts →
	Exact match “GWE Consulting Engineers is a multi-disciplinary engineering consultancy providing geotechnical, civil and water, environmental, wastewater and stormwater engineering services and…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
9	CGW Consulting Engineers	Exact match	Nelson, New ZealandHQ recorded Sep 3, 2026	11-50	40 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
10	Damwatch Engineering LTD	Exact match	New ZealandHQ recorded Sep 3, 2026	11-50	40 contacts →
	Exact match “Damwatch is a highly respected niche consultancy business based in Wellington, New Zealand and provide services to hydropower, water and irrigation clients internationally.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
11	Engco Consulting Engineers	Exact match	Christchurch, New ZealandHQ recorded Sep 3, 2026	51-200	39 contacts →
	Exact match “ENGCO is a multi-disciplinary national consultancy with expertise delivering large scale projects, worth in excess of $100 million, and at the boutique end of the market…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
12	ACH Consulting Engineers	Exact match	Auckland, New ZealandHQ recorded Sep 3, 2026	11-50	37 contacts →
	Exact match “Today ACH employs over 40 staff in their Auckland office with a number being Chartered Professional Engineers.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
13	Mesh Consulting Limited	Exact match	Auckland, New ZealandHQ recorded Sep 3, 2026	11-50	33 contacts →
	Exact match “Since 2018, Mesh has been transforming the consulting engineering landscape within the building services sector, one project at a time.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
14	Blue Barn Consulting LTD	Exact match	Auckland, New ZealandHQ recorded Sep 3, 2026	11-50	28 contacts →
	Exact match “Blue Barn Consulting was established in 2008, and is proudly 100% New Zealand owned and operated.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
15	Regeneratenz LTD	Exact match	Christchurch, New ZealandHQ recorded Sep 3, 2026	11-50	23 contacts →
	Exact match “RegenerateNZ Ltd.(Re-Generate) was formed in August 2017 as a specialist energy and water solutions business with commercial activities spanning; consulting, design, supply…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
16	Fluid Engineering Consultancy	Exact match	Tauranga, New ZealandHQ recorded Sep 3, 2026	11-50	17 contacts →
	Exact match “We design building services for a variety of projects.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
17	Structex	Exact match	Christchurch, New ZealandHQ recorded Sep 3, 2026	11-50	16 contacts →
	Exact match “Structex combines the knowledge and experience of a large engineering consultancy with the effectiveness, close business relationships and agility of a small team.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
18	Williamson Water & Land Advisory	Exact match	Kumeu, New ZealandHQ recorded Sep 3, 2026	11-50	16 contacts →
	Exact match “Williamson Water & Land Advisory (WWLA) is a New Zealand based, employee owned, niche environmental consultancy.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
19	Clendon Burns & Park LTD	Exact match	Wellington, New ZealandHQ recorded Sep 3, 2026	11-50	14 contacts →
	Exact match “Clendon Burns & Park ltd has operated as a firm of Consulting Structural and Civil Engineers in Wellington for over 60 years.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
20	Dreamcast Group Consulting Engineers	Exact match	Auckland, New ZealandHQ recorded Sep 3, 2026	11-50	13 contacts →
	Exact match “We provide Civil, Structural and Geotechnical Engineering consultancy services.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
21	SWE Southern Water Engineering	Exact match	Blenheim, New ZealandHQ recorded Sep 3, 2026	11-50	12 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 · Sep 3, 2026 · View company records in RevenueBase
22	NEW Zealand Consulting Engineers LTD	Exact match	Wellington, New ZealandHQ recorded Sep 3, 2026	11-50	11 contacts →
	Exact match “WE ADD VALUE, NOT COST.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
23	Fluent Infrastructure Solutions Limited	Exact match	Dunedin, New ZealandHQ recorded Sep 3, 2026	11-50	11 contacts →
	Exact match “Fluent Solutions is a Dunedin and Queenstown based Engineering Consultancy with a strong reputation and track record in providing Civil and Infrastructure, 3 Waters and…” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
24	Mcmahon LTD	Exact match	Grafton, New ZealandHQ recorded Sep 3, 2026	11-50	11 contacts →
	Exact match “With a proud history of over 30 years servicing industry, we hold a unique position within the engineering sector in New Zealand.” Recorded in the RevenueBase company graph · Sep 3, 2026 · View company records in RevenueBase
25	E2environmental LTD	Exact match	Christchurch, New ZealandHQ recorded Sep 3, 2026	11-50	10 contacts →
	Exact match “e2Environmental is a highly experienced, full service civil engineering consultancy specialising in water engineering and land development.” Recorded in the RevenueBase company graph · Sep 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 “hydropower engineering consultancy companies”. 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 70 hydropower engineering consultancy companies based in New Zealand

See the full list, filter by size, metro and specialty, and access 758 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydropower engineering consultancy companies based in New Zealand at a glance

As of Sep 3, 2026

29.9%Verified-email coverage

2.4%Mobile-number coverage

36.2Average contacts per company

11-50Median size (employees)

31.4%Largest-city concentration · Auckland

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

5,001-10,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

5731–60

44161–90

25990–180

1180+

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 “hydropower engineering consultancy companies” 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 758 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 September 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 “hydropower engineering consultancy companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydropower engineering consultancy companies are there based in New Zealand?

RevenueBase identified 70 company matches for hydropower engineering consultancy companies associated with New Zealand as of September 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?

Opus International Consultants Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most hydropower engineering consultancy companies?

Auckland leads with 22 company records, followed by Christchurch (13) and Wellington (5).

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 758 professional contacts with verified work emails tracked across these 70 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 September 3, 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 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.