Company lists · Data refreshed September 2026

Top 25 Energy engineering consulting firms based in New Zealand

Name: Energy engineering 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 24, 2026 186 companies tracked

RevenueBase identified 186 energy engineering consulting firms headquartered in New Zealand as of September 2026 and tracks 2,639 professional contacts across them, including 1,297 with verified work emails and 52 with mobile numbers. Auckland is the largest hub.

This list covers energy engineering 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 24, 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 24, 2026 86% judged on-target in blind review

186Companies

2,639Contacts tracked

1,297Verified emails

52Mobile numbers

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The 25 largest energy engineering consulting firms based in New Zealand

Ranked by team size

Top 25 of 186 energy engineering consulting firms based in New Zealand, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to energy engineering consulting firms: 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 24, 2026	1,001-5,000	568 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 24, 2026
2	Ergo Consulting	Strong evidence	Auckland, New ZealandHQ checked Sep 24, 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 24, 2026
3	Riley Consultants	Indirect evidence	Takapuna, New ZealandHQ checked Sep 24, 2026	51-200	84 contacts →
	Indirect evidence “Our company has evolved from humble yet visionary origins to become the multi-disciplinary consultancy it is today.” Source: RevenueBase Database · checked Sep 24, 2026
4	Powell Fenwick	Partial evidence	Christchurch, New ZealandHQ checked Sep 24, 2026	51-200	79 contacts →
	Partial 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 24, 2026
5	Edison Consulting Group	Strong evidence	Auckland, New ZealandHQ checked Sep 24, 2026	51-200	77 contacts →
	Strong 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 24, 2026
6	Groundline	Partial evidence	Christchurch, New ZealandHQ checked Sep 24, 2026	51-200	71 contacts →
	Partial 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 24, 2026
7	MB Century LTD	Strong evidence	Taupo, New ZealandHQ checked Sep 24, 2026	51-200	70 contacts →
	Strong evidence “MB Century is New Zealand's only end-to-end world-class renewable energy solutions provider specialising in Drilling, Reservoir & Wireline, Engineering Design, Precision…” Source: RevenueBase Database · checked Sep 24, 2026
8	TM Consultants	Strong evidence	Christchurch, New ZealandHQ checked Sep 24, 2026	51-200	69 contacts →
	Strong evidence “New Zealand’s multi-award winning, sustainable-passionate professional consulting engineering partners.” Source: RevenueBase Database · checked Sep 24, 2026
9	MTL NZ	Strong evidence	Auckland, New ZealandHQ checked Sep 24, 2026	51-200	65 contacts →
	Strong 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 24, 2026
10	LUMEN	Partial evidence	Christchurch, New ZealandHQ checked Sep 24, 2026	51-200	61 contacts →
	Partial evidence “We're a premier provider of professional engineering services throughout New Zealand, Australia, and the Pacific Islands, offering a comprehensive range of lines engineering…” Source: RevenueBase Database · checked Sep 24, 2026
11	Cosgroves NOW Stantec	Indirect evidence	Christchurch, New ZealandHQ checked Sep 24, 2026	51-200	55 contacts →
	Indirect evidence “Cosgroves is now Stantec.” Source: RevenueBase Database · checked Sep 24, 2026
12	Thinkstep-Anz	Indirect evidence	Auckland / Christchurch / Hamilton/ Rotorua / Wellington / Sydney / Melbourne / Canberra / Brisbane / Adelaide / Perth, New ZealandHQ checked Sep 24, 2026	11-50	51 contacts →
	Indirect evidence “thinkstep-anz \| Succeed sustainably Empowering organisations across Australia and New Zealand to succeed sustainably.” Source: RevenueBase Database · checked Sep 24, 2026
13	Mainstream Engineering MEL	Partial evidence	Kawerau, New ZealandHQ checked Sep 24, 2026	51-200	49 contacts →
	Partial evidence “Engineering Design - Project Management - Maintenance Engineering - Safety Assessments - Industrial Fans and Air Handling Mechanical \| Electrical, Instrumentation & Control (EI &…” Source: RevenueBase Database · checked Sep 24, 2026
14	Niko Engineering Limited	Partial evidence	Hamilton, New ZealandHQ checked Sep 24, 2026	51-200	44 contacts →
	Partial evidence “Niko Engineering Limited (formally Tesla Consultants Limited) is a New Zealand owned engineering consultancy providing electrical, protection, control, telecommunications and…” Source: RevenueBase Database · checked Sep 24, 2026
15	CGW Consulting Engineers	Strong evidence	Nelson, New ZealandHQ checked Sep 24, 2026	11-50	40 contacts →
	Strong 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 24, 2026
16	Damwatch Engineering LTD	Indirect evidence	Wellington, New ZealandHQ checked Sep 24, 2026	11-50	40 contacts →
	Indirect 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 24, 2026
17	Engco Consulting Engineers	Indirect evidence	Christchurch, New ZealandHQ checked Sep 24, 2026	51-200	39 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 24, 2026
18	EDC	Partial evidence	Auckland, New ZealandHQ checked Sep 24, 2026	11-50	39 contacts →
	Partial evidence “Who We Are With offices in Auckland, Christchurch and Whakatane, multi-disciplined Engineering Design Consultants (EDC) are your answer to all things engineering.// What We Do EDC…” Source: RevenueBase Database · checked Sep 24, 2026
19	ACH Consulting Engineers	Indirect evidence	Auckland, New ZealandHQ checked Sep 24, 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 24, 2026
20	Mesh Consulting Limited	Strong evidence	Auckland, New ZealandHQ checked Sep 24, 2026	11-50	34 contacts →
	Strong evidence “Since 2018, Mesh has been transforming the consulting engineering landscape within the building services sector, one project at a time.” Source: RevenueBase Database · checked Sep 24, 2026
21	Titus Consulting Engineers	Partial evidence	Hamilton, New ZealandHQ checked Sep 24, 2026	11-50	32 contacts →
	Partial evidence “Innovative Engineering consultancy building long term business relationships with both private and public clients.” Source: RevenueBase Database · checked Sep 24, 2026
22	Falcon	Partial evidence	Napier, New ZealandHQ checked Sep 24, 2026	51-200	27 contacts →
	Partial evidence “We pride ourselves on continuous innovation to develop engineering solutions and services, that improve peoples lives.” Source: RevenueBase Database · checked Sep 24, 2026
23	JRG Energy	Partial evidence	Taupo, New ZealandHQ checked Sep 24, 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 24, 2026
24	GDC Consultants	Partial evidence	Hamilton, New ZealandHQ checked Sep 24, 2026	11-50	26 contacts →
	Partial evidence “GDC is an established ISO9001:2015 accredited engineering consultancy based in New Zealand with seven offices across the country and an office in Sri Lanka.” Source: RevenueBase Database · checked Sep 24, 2026
25	Dobbie	Partial evidence	Auckland, New ZealandHQ checked Sep 24, 2026	11-50	23 contacts →
	Partial evidence “Dobbie Engineers is a specialist industrial engineering consultancy with a foundation in mechanical engineering, mechatronics, structural engineering, and process design.” Source: RevenueBase Database · checked Sep 24, 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: energy engineering consulting firms. 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 energy engineering consulting firms.
Partial evidence: Its own public description names part of energy engineering consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy engineering consulting firms. 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 186 energy engineering consulting firms based in New Zealand

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Energy engineering consulting firms based in New Zealand at a glance

As of Sep 24, 2026

49.1%Verified-email coverage

2.0%Mobile-number coverage

14.2Average contacts per company

1-10Median size (employees)

38.7%Largest-city concentration · Auckland

Sep 24, 2026Page data refreshed

Companies by employee count

1-10

105

11-50

51-200

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

9710–30

30631–60

1661–90

290–180

2180+

Company record updated

Median 91.0d

00–30

12931–60

1,12061–90

1,30290–180

88180+

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 energy engineering consulting firms, 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 “energy engineering consulting firms”. 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 energy engineering consulting firms), 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 energy engineering 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 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, 1,297 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 24, 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 energy engineering consulting firms, 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 energy engineering consulting firms are there based in New Zealand?

RevenueBase identified 186 energy engineering 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 energy engineering consulting firms?

Auckland leads with 72 headquartered companies, followed by Christchurch (25) and Wellington (14).

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 1,297 verified decision-maker contacts tracked across these 186 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 24, 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.