Company lists · Data refreshed September 2026

Top 25 Hydropower consulting firms based in New Zealand

Name: Hydropower consulting firms 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 hydropower consulting firms headquartered in New Zealand as of September 2026 and tracks 2,612 professional contacts across them, including 776 with verified work emails and 66 with mobile numbers. Auckland is the largest hub.

This list covers hydropower consulting firms 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, how directly it supports the match, and when it was last checked. 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 HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

70Companies

2,612Contacts tracked

776Verified emails

66Mobile numbers

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The 25 largest hydropower consulting firms based in New Zealand

Ranked by team size

Top 25 of 70 hydropower consulting firms based in New Zealand, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names hydropower consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Opus International Consultants LimitedIndirect evidence	Wellington, New ZealandHQ checked Sep 3, 2026	1,001-5,000	569
	Source: company website · checked Sep 3, 2026
2	Pattle Delamore PartnersIndirect evidence	Auckland, New ZealandHQ checked Sep 3, 2026	201-500	272
	“PDP is one of Aotearoa New Zealand’s leading environmental science, engineering, and advisory consultancies.” Source: company website · checked Sep 3, 2026
3	Riley ConsultantsIndirect evidence	Takapuna, New ZealandHQ checked Sep 3, 2026	51-200	86
	“Our company has evolved from humble yet visionary origins to become the multi-disciplinary consultancy it is today.” Source: company website · checked Sep 3, 2026
4	LDE Engineers ScientistsIndirect evidence	Gisborne, New ZealandHQ checked Sep 3, 2026	51-200	82
	“LDE are specialists in geotechnical, civil, environmental and structural engineering.” Source: company website · checked Sep 3, 2026
5	Fraser Thomas LTDPartial evidence	Auckland, New ZealandHQ checked Sep 3, 2026	51-200	76
	“Fraser Thomas is a Multi-Disciplinary, client focused consulting firm specialising in resource management, engineering and surveying.” Source: company website · checked Sep 3, 2026
6	MTL NZIndirect evidence	New ZealandHQ checked Sep 3, 2026	51-200	64
	“Founded in 1994, MTL specialises in engineering design and project management for renewable energy, water infrastructure and industrial projects.” Source: company website · checked Sep 3, 2026
7	GWE Consulting EngineersPartial evidence	Takapuna, New ZealandHQ checked Sep 3, 2026	11-50	42
	“GWE Consulting Engineers is a multi-disciplinary engineering consultancy providing geotechnical, civil and water, environmental, wastewater and stormwater engineering services and…” Source: company website · checked Sep 3, 2026
8	CGW Consulting EngineersPartial evidence	Nelson, New ZealandHQ checked Sep 3, 2026	11-50	40
	“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: company website · checked Sep 3, 2026
9	Damwatch Engineering LTDPartial evidence	New ZealandHQ checked Sep 3, 2026	11-50	40
	“Damwatch is a highly respected niche consultancy business based in Wellington, New Zealand and provide services to hydropower, water and irrigation clients internationally.” Source: company website · checked Sep 3, 2026
10	AWA EnvironmentalIndirect evidence	Wellington, New ZealandHQ checked Sep 3, 2026	11-50	37
	“Awa Environmental is shaping stormwater to reduce flood risk, protect critical assets and infrastructure, and build resilient communities and thriving ecosystems.” Source: company website · checked Sep 3, 2026
11	Aqualinc Research LimitedPartial evidence	Christchurch, New ZealandHQ checked Sep 3, 2026	11-50	29
	“Aqualinc Research Limited is an independent provider of research-based consulting services for water and land management.” Source: company website · checked Sep 3, 2026
12	Blue Barn Consulting LTDPartial evidence	Auckland, New ZealandHQ checked Sep 3, 2026	11-50	28
	“Blue Barn Consulting was established in 2008, and is proudly 100% New Zealand owned and operated.” Source: company website · checked Sep 3, 2026
13	BonischIndirect evidence	Invercargill, New ZealandHQ checked Sep 3, 2026	11-50	27
	“Bonisch Consultants is a progressive and innovative business based in Invercargill with branch offices in Te Anau and Christchurch.” Source: company website · checked Sep 3, 2026
14	Soil & Rock ConsultantsIndirect evidence	Henderson, New ZealandHQ checked Sep 3, 2026	51-200	27
	“With a rich legacy spanning over three decades, Soil & Rock Consultants stand at the forefront of the geotechnical, environmental, civil, and geological engineering landscape in…” Source: company website · checked Sep 3, 2026
15	TektusIndirect evidence	Auckland, New ZealandHQ checked Sep 3, 2026	11-50	20
	“In early 2015, Tektus was formed to create a distinct multi-disciplinary practice with strong values.” Source: company website · checked Sep 3, 2026
16	Williamson Water & Land AdvisoryIndirect evidence	Kumeu, New ZealandHQ checked Sep 3, 2026	11-50	16
	“Williamson Water & Land Advisory (WWLA) is a New Zealand based, employee owned, niche environmental consultancy.” Source: company website · checked Sep 3, 2026
17	Clendon Burns & Park LTDPartial evidence	Wellington, New ZealandHQ checked Sep 3, 2026	11-50	14
	“Clendon Burns & Park ltd has operated as a firm of Consulting Structural and Civil Engineers in Wellington for over 60 years.” Source: company website · checked Sep 3, 2026
18	Bellcon LimitedIndirect evidence	Ruakaka, New ZealandHQ checked Sep 3, 2026	11-50	12
	“We’re proud to be a construction company delivering project management, engineering, and commissioning services for water and wastewater infrastructure.” Source: company website · checked Sep 3, 2026
19	NEW Zealand Consulting Engineers LTDIndirect evidence	Wellington, New ZealandHQ checked Sep 3, 2026	11-50	11
	“WE ADD VALUE, NOT COST.” Source: company website · checked Sep 3, 2026
20	E2environmental LTDIndirect evidence	Christchurch, New ZealandHQ checked Sep 3, 2026	11-50	10
	“e2Environmental is a highly experienced, full service civil engineering consultancy specialising in water engineering and land development.” Source: company website · checked Sep 3, 2026
21	Smart Alliances LimitedIndirect evidence	Blenheim, New ZealandHQ checked Sep 3, 2026	11-50	9
	“Smart Alliances delivers inter-disciplinary engineering, resource management and architecture solutions for their clients - from simple compliance certification to fully…” Source: company website · checked Sep 3, 2026
22	CLC Consulting Group LimitedPartial evidence	Auckland, New ZealandHQ checked Sep 3, 2026	11-50	9
	“We offer Consulting Services in the following fields: Civil & Environmental Engineering, Structural Engineering, Land Surveying and Resource Management Planning.” Source: company website · checked Sep 3, 2026
23	Thorndon Cook PowerIndirect evidence	Auckland, New ZealandHQ checked Sep 3, 2026	11-50	9
	“Thorndon Cook Ltd is a New Zealand based engineering consultancy passionate about applying our technical knowledge to benefit communities and clients.” Source: company website · checked Sep 3, 2026
24	Blueline Consulting NZIndirect evidence	Taupo, New ZealandHQ checked Sep 3, 2026	11-50	8
	“We are a forward-thinking consultancy driven by our passion for pioneering design concepts and advancing sustainable solutions.” Source: company website · checked Sep 3, 2026
25	DVLPIndirect evidence	Cambridge, New ZealandHQ checked Sep 3, 2026	11-50	8
	“DVLP is a New Zealand-based project management consultancy delivering high-quality outcomes across infrastructure, environmental, and primary industry sectors.” Source: company website · checked Sep 3, 2026

Showing 25 of 70 hydropower consulting firms based in New Zealand

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Hydropower consulting firms based in New Zealand at a glance

As of Sep 3, 2026

1-10Median size (employees)

AucklandLargest hub · 23 HQs

66Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

5,001-10,000

Verified emails by last verification

0–30

31–60

61–90

421

90–180

281

180+

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 consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among hydropower consulting firms, 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 an evidence 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, 776 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 3, 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

How many hydropower consulting firms are there based in New Zealand?

RevenueBase identified 70 hydropower consulting firms 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 consulting firms?

Auckland leads with 23 headquartered companies, followed by Christchurch (8) and Wellington (5).

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 776 verified decision-maker contacts tracked across these 70 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 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.