Company lists · Data refreshed September 2026

Top 25 Hydropower engineering consultants based in New Zealand

Name: Hydropower engineering consultants 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 47 companies tracked

RevenueBase identified 47 hydropower engineering consultants headquartered in New Zealand as of September 2026 and tracks 1,435 professional contacts across them, including 667 with verified work emails. Auckland is the largest hub.

This list covers hydropower engineering consultants 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

47Companies

1,435Contacts tracked

667Verified emails

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The 25 largest hydropower engineering consultants based in New Zealand

Ranked by team size

Top 25 of 47 hydropower engineering consultants 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 hydropower engineering consultants: 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	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
2	Ergo Consulting	Strong evidence	Auckland, New ZealandHQ checked Sep 16, 2026	51-200	112 contacts →
	Strong evidence “Ergo aspires to be New Zealand’s first choice provider of engineering consultancy services to the power and energy industry.” Source: RevenueBase Database · checked Sep 16, 2026
3	LDE Engineers Scientists	Partial evidence	Gisborne, New ZealandHQ checked Sep 16, 2026	51-200	81 contacts →
	Partial evidence “LDE are specialists in geotechnical, civil, environmental and structural engineering.” Source: RevenueBase Database · checked Sep 16, 2026
4	Powell Fenwick	Strong evidence	Christchurch, New ZealandHQ checked Sep 16, 2026	51-200	79 contacts →
	Strong evidence “Powell Fenwick is a Christchurch based engineering consultancy firm with significant experience in all facets of building design and construction.” Source: RevenueBase Database · checked Sep 16, 2026
5	Edison Consulting Group	Partial evidence	Auckland, New ZealandHQ checked Sep 16, 2026	51-200	77 contacts →
	Partial evidence “Edison Consulting Group provides specialist project management, design engineering and advisory services, delivering successful energy projects to the New Zealand energy sector.” Source: RevenueBase Database · checked Sep 16, 2026
6	Groundline	Strong evidence	Christchurch, New ZealandHQ checked Sep 16, 2026	51-200	71 contacts →
	Strong evidence “GROUNDLINE is a global engineering consultancy dedicated to keeping the lights on, with offices in Australia, New Zealand, and the United Kingdom.” Source: RevenueBase Database · checked Sep 16, 2026
7	MTL NZ	Partial evidence	Auckland, New ZealandHQ checked Sep 16, 2026	51-200	65 contacts →
	Partial evidence “Founded in 1994, MTL specialises in engineering design and project management for renewable energy, water infrastructure and industrial projects.” Source: RevenueBase Database · checked Sep 16, 2026
8	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
9	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
10	Damwatch Engineering LTD	Strong evidence	Wellington, New ZealandHQ checked Sep 16, 2026	11-50	40 contacts →
	Strong evidence “Damwatch is a highly respected niche consultancy business based in Wellington, New Zealand and provide services to hydropower, water and irrigation clients internationally.” Source: RevenueBase Database · checked Sep 16, 2026
11	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
12	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
13	JRG Energy	Partial evidence	Taupo, New ZealandHQ checked Sep 16, 2026	11-50	27 contacts →
	Partial evidence “JRG Energy is an established group of personalized consultants servicing all aspects of the Oil and Gas, Geothermal, and Renewable Energy Industries.” Source: RevenueBase Database · checked Sep 16, 2026
14	Fluid Engineering Consultancy	Indirect evidence	Tauranga, New ZealandHQ checked Sep 16, 2026	11-50	18 contacts →
	Indirect evidence “We design building services for a variety of projects.” Source: RevenueBase Database · checked Sep 16, 2026
15	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
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	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
18	E2environmental LTD	Strong evidence	Christchurch, New ZealandHQ checked Sep 16, 2026	11-50	9 contacts →
	Strong evidence “e2Environmental is a highly experienced, full service civil engineering consultancy specialising in water engineering and land development.” Source: RevenueBase Database · checked Sep 16, 2026
19	CLC Consulting Group Limited	Partial evidence	Auckland, New ZealandHQ checked Sep 16, 2026	11-50	9 contacts →
	Partial 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	Thorndon Cook Power	Strong evidence	Auckland, New ZealandHQ checked Sep 16, 2026	11-50	9 contacts →
	Strong evidence “Thorndon Cook Ltd is a New Zealand based engineering consultancy passionate about applying our technical knowledge to benefit communities and clients.” Source: RevenueBase Database · checked Sep 16, 2026
22	Blueline Consulting NZ	Partial evidence	Taupo, New ZealandHQ checked Sep 16, 2026	11-50	7 contacts →
	Partial 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
23	Oceania Consultants Group PTY LTD	Partial evidence	Christchurch, New ZealandHQ checked Sep 16, 2026	1-10	6 contacts →
	Partial evidence “Oceania Consultants (Group) Our strong, client-centric approach differentiates us.” Source: RevenueBase Database · checked Sep 16, 2026
24	Quadcom	Indirect evidence	Wellington, New ZealandHQ checked Sep 16, 2026	1-10	5 contacts →
	Indirect evidence “We are a small boutique specialist team of commissioning engineers, project managers, and high voltage experts.” Source: RevenueBase Database · checked Sep 16, 2026
25	Process Group LTD NEW Zealand	Partial evidence	New Plymouth, New ZealandHQ checked Sep 16, 2026	1-10	5 contacts →
	Partial evidence “Process Group is an engineering consulting company specialising in plant design and operation.” 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: hydropower engineering consultants. 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 hydropower engineering consultants.
Partial evidence: Its own public description names part of hydropower engineering consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydropower engineering consultants. 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 47 hydropower engineering consultants based in New Zealand

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Hydropower engineering consultants based in New Zealand at a glance

As of Sep 16, 2026

46.5%Verified-email coverage

30.5Average contacts per company

1-10Median size (employees)

38.3%Largest-city concentration · Auckland

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 47 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 hydropower engineering consultants, 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 “hydropower engineering consultants”. 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 hydropower engineering consultants), 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 hydropower engineering consultants, 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, 667 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.

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 hydropower engineering consultants, 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 hydropower engineering consultants are there based in New Zealand?

RevenueBase identified 47 hydropower engineering consultants 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?

Opus International Consultants Limited, headquartered in Wellington, tops this list with the largest team on record.

Which city has the most hydropower engineering consultants?

Auckland leads with 18 headquartered companies, followed by Christchurch (12) and Wellington (4).

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 667 verified decision-maker contacts tracked across these 47 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.