Company lists · Data refreshed September 2026

Top 21 Commercial energy consulting firms based in New Zealand

RevenueBase identified 58 commercial energy consulting firms headquartered in New Zealand as of September 2026 and tracks 420 professional contacts across them, including 172 with verified work emails. Auckland is the largest hub.

This list covers commercial energy 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 27, 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 27, 2026 86% judged on-target in blind review
58Companies
420Contacts tracked
172Verified emails
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The 21 largest commercial energy consulting firms based in New Zealand

Ranked by team size
Top 21 of 58 commercial energy consulting firms based in New Zealand, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to commercial energy 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
1Partial evidenceLower Hutt, New ZealandHQ checked Sep 27, 202611-5054 contacts →

Partial evidence

“EMP are an independent, NZ owned energy analyst company.”

Source: RevenueBase Database · checked Sep 27, 2026
2Partial evidenceWellington, New ZealandHQ checked Sep 27, 202651-20042 contacts →

Partial evidence

“Simply Energy is part of Contact Energy Ltd, and together we’ve embarked on an important mission to create a more sustainable energy future for Aotearoa New Zealand.”

Source: RevenueBase Database · checked Sep 27, 2026
3Partial evidenceAuckland, New ZealandHQ checked Sep 27, 202611-5028 contacts →

Partial evidence

“CLIENT-FOCUSED INNOVATORS Our drive for performance, efficiency and savings for clients means we’re continuously innovating with systems design, energy efficiency, asset…”

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidenceTaupo, New ZealandHQ checked Sep 27, 202611-5027 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 27, 2026
5Partial evidenceAuckland, New ZealandHQ checked Sep 27, 202651-20024 contacts →

Partial evidence

“We specialise in servicing and maintenance of power systems and energy conservation equipment.”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceAuckland, New ZealandHQ checked Sep 27, 202611-5019 contacts →

Indirect evidence

“Tether is a building performance company.”

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceNew Plymouth, New ZealandHQ checked Sep 27, 202611-5017 contacts →

Indirect evidence

“Established in Taranaki in 2006, TIS brings a comprehensive suite of internationally recognised accreditations teamed with extensive industry experience to design, develop and…”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceTakapuna, New ZealandHQ checked Sep 27, 202611-5017 contacts →

Indirect evidence

“We get called all sorts of things: building services advisers, engineering consultants, HVAC specialists, mechanical engineering consultants, HVAC solution providers, air…”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceWellington, New ZealandHQ checked Sep 27, 20261-1016 contacts →

Partial evidence

“Concept is a specialist energy and economics consultancy that provides services to clients in New Zealand, Australia and the wider Asia-Pacific region.”

Source: RevenueBase Database · checked Sep 27, 2026
10Strong evidenceAuckland, New ZealandHQ checked Sep 27, 202611-5011 contacts →

Strong evidence

“ESP is an award-winning, New Zealand-owned and -operated specialist in commercial energy efficiency and decarbonisation, utilising advanced monitoring software and human expertise…”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceChristchurch, New ZealandHQ checked Sep 27, 20261-1010 contacts →

Indirect evidence

“Bringing power to the people.”

Source: RevenueBase Database · checked Sep 27, 2026
12Indirect evidenceGrafton, New ZealandHQ checked Sep 27, 202611-509 contacts →

Indirect evidence

“NuGreen Solutions NZ entered the New Zealand market in February 2015 following requests from our global customers to do so.”

Source: RevenueBase Database · checked Sep 27, 2026
13Partial evidenceWellington, New ZealandHQ checked Sep 27, 20261-107 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceAuckland, New ZealandHQ checked Sep 27, 20261-105 contacts →

Partial evidence

“Revolve Energy is a consultancy and system integrator focused on the application of renewable energy and demand side technologies.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidencePalmerston North, New ZealandHQ checked Sep 27, 202611-505 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceAuckland, New ZealandHQ checked Sep 27, 20261-104 contacts →

Partial evidence

“Delivering Integrated Design and Construction Management for Educational, Healthcare, Residential and Commercial construction projects, Eco-Logical Architecture is a consultancy…”

Source: RevenueBase Database · checked Sep 27, 2026
17Partial evidenceRemuera, New ZealandHQ checked Sep 27, 202611-503 contacts →

Partial evidence

“Leading the quest to change the world as the trusted sustainability partner creating valued, efficient energy solutions delivered with passion, expertise, teamwork and a…”

Source: RevenueBase Database · checked Sep 27, 2026
18Strong evidenceAuckland, New ZealandHQ checked Sep 27, 20261-103 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
19Partial evidenceAwahuri, New ZealandHQ checked Sep 27, 202611-502 contacts →

Partial evidence

“Energy Workshop is an experienced Energy Efficiency business providing solutions for your Home, Rental & New Build.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceAuckland, New ZealandHQ checked Sep 27, 20261-101 contacts →

Indirect evidence

“Consultant for project management, integrated design and build and environmental sustainability.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceWellington, New ZealandHQ checked Sep 27, 20261-101 contacts →

Indirect evidence

“Our business model is based on collaboration.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 21 of 58 commercial energy consulting firms based in New Zealand

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Commercial energy consulting firms based in New Zealand at a glance

As of Sep 27, 2026
41.0%Verified-email coverage
7.2Average contacts per company
1-10Median size (employees)
32.8%Largest-city concentration · Auckland
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
35
11-50
18
51-200
5

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 58 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 commercial energy 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 “commercial energy 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 commercial energy 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 commercial energy 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, 172 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 27, 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 commercial energy 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 commercial energy consulting firms are there based in New Zealand?

RevenueBase identified 58 commercial energy 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?

EMP, headquartered in Lower Hutt, tops this list with the largest team on record.

Which city has the most commercial energy consulting firms?

Auckland leads with 19 headquartered companies, followed by Wellington (9) and Christchurch (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 172 verified decision-maker contacts tracked across these 58 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 27, 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.