Company lists · Data refreshed September 2026

Top 9 Utility consulting firms based in New Zealand

RevenueBase identified 27 utility consulting firms headquartered in New Zealand as of September 2026 and tracks 675 professional contacts across them, including 97 with verified work emails and 13 with mobile numbers. Wellington is the largest hub.

This list covers utility 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 6, 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 6, 2026 86% judged on-target in blind review
27Companies
675Contacts tracked
97Verified emails
13Mobile numbers
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The 9 largest utility consulting firms based in New Zealand

Ranked by team size
Top 9 of 27 utility consulting firms based in New Zealand, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to utility 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceWellington, New ZealandHQ checked Sep 6, 20261,001-5,000568 contacts →
Source: company website · checked Sep 6, 2026
2Indirect evidenceTaupo, New ZealandHQ checked Sep 6, 202611-5027 contacts →

“JRG Energy is an established group of personalized consultants servicing all aspects of the Oil and Gas, Geothermal, and Renewable Energy Industries.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceAuckland, New ZealandHQ checked Sep 6, 202611-509 contacts →

“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 6, 2026
4Indirect evidenceWellington, New ZealandHQ checked Sep 6, 20261-107 contacts →

“We help market participants, policy makers, regulators, and operators get the most out of their energy markets.”

Source: company website · checked Sep 6, 2026
5Indirect evidencePalmerston North, New ZealandHQ checked Sep 6, 202611-505 contacts →

“Providing our customers with savings and the right advice.”

Source: company website · checked Sep 6, 2026
6Partial evidenceAuckland, New ZealandHQ checked Sep 6, 20261-103 contacts →

“MRC Nel Consulting Ltd.(NCL) of New Zealand is an energy consulting firm established in 2009 by consultants from recognised engineering consultancy companies.”

Source: company website · checked Sep 6, 2026
7Indirect evidenceWellington, New ZealandHQ checked Sep 6, 20261-102 contacts →

“BlackYARD Engineering is an experienced electrical engineering company with offices covering New Zealand in Wellington and Wanaka.”

Source: company website · checked Sep 6, 2026
8Indirect evidenceNew Plymouth, New ZealandHQ checked Sep 6, 20261-101 contacts →

“Consultancy specialising in business strategy, data analytics and process engineering for the energy, manufacturing and food industries.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceTe Haroto, New ZealandHQ checked Sep 6, 20261-101 contacts →
Source: company website · checked Sep 6, 2026

Showing 9 of 27 utility consulting firms based in New Zealand

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Utility consulting firms based in New Zealand at a glance

As of Sep 6, 2026
14.4%Verified-email coverage
1.9%Mobile-number coverage
25.0Average contacts per company
1-10Median size (employees)
29.6%Largest-city concentration · Wellington
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
19
11-50
6
51-200
1
1,001-5,000
1

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 utility 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 “utility 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 utility 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 utility 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, 97 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 6, 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 utility 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 utility consulting firms are there based in New Zealand?

RevenueBase identified 27 utility 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 utility consulting firms?

Wellington leads with 8 headquartered companies, followed by Auckland (5) and Palmerston North (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 97 verified decision-maker contacts tracked across these 27 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 6, 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.