Company lists · Data refreshed September 2026

Top 20 Infrastructure consulting firms based in Wellington, New Zealand

RevenueBase identified 33 infrastructure consulting firms headquartered in Wellington, New Zealand as of September 2026 and tracks 772 professional contacts across them, including 183 with verified work emails. Auckland is the largest hub.

This list covers infrastructure consulting firms headquartered in Wellington, 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
33Companies
772Contacts tracked
183Verified emails
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The 20 largest infrastructure consulting firms based in Wellington, New Zealand

Ranked by team size
Top 20 of 33 infrastructure consulting firms based in Wellington, New Zealand, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names infrastructure 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.
#CompanyHeadquartersEmployeesContacts
1Wellington, New ZealandHQ checked Sep 3, 20261,001-5,000569
Source: company website · checked Sep 3, 2026
2
Zephyr ConsultingPartial evidence
Wellington, New ZealandHQ checked Sep 3, 202611-5023

“We’re an independent NZ owned company specialising in the provision of business & information technology consulting, to help grow your company’s business potential.”

Source: company website · checked Sep 3, 2026
3
Dtce Consulting EngineersPartial evidence
Wellington, New ZealandHQ checked Sep 3, 202611-5016

“Welcome to DTCE Consulting Engineers, Wellington’s structural and geotechnical specialists.”

Source: company website · checked Sep 3, 2026
4
Clendon Burns & Park LTDPartial evidence
Wellington, New ZealandHQ checked Sep 3, 202611-5014

“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
5Wellington, New ZealandHQ checked Sep 3, 202611-5011

“WE ADD VALUE, NOT COST.”

Source: company website · checked Sep 3, 2026
6
HoffconIndirect evidence
Wellington, New ZealandHQ checked Sep 3, 202611-5010

“Hoffcon delivers fast, innovative solutions to your complex construction challenges.”

Source: company website · checked Sep 3, 2026
7
Impact Project ManagementIndirect evidence
Wellington, New ZealandHQ checked Sep 3, 202611-5010

“Impact is one of New Zealand's most respected independent project management companies.”

Source: company website · checked Sep 3, 2026
8
Stimpson & COPartial evidence
Wellington, New ZealandHQ checked Sep 3, 20261-106

“COMMERCIAL ADVISORS TO THE PUBLIC SECTOR • Business cases and public policy in the infrastructure sector including transport, supply chain, electricity, and water.”

Source: company website · checked Sep 3, 2026
9
Kalimena AdvisoryStrong evidence
Wellington, New ZealandHQ checked Sep 3, 20261-104

“Kalimena supports clients to optimise outcomes from infrastructure, making a difference for people, business and communities Our consulting and advisory services focus on…”

Source: company website · checked Sep 3, 2026
10
SagebushIndirect evidence
Wellington, New ZealandHQ checked Sep 3, 20261-104

“SageBush are public sector specialists.”

Source: company website · checked Sep 3, 2026
11
ARCPartial evidence
Wellington, New ZealandHQ checked Sep 3, 20261-104

“We provide expert advice across all forms of infrastructure investment.”

Source: company website · checked Sep 3, 2026
12
NB Consulting LTD NZIndirect evidence
Wellington, New ZealandHQ checked Sep 3, 20261-103

“We believe complexity can be expressed simply Great outcomes are achieved when driven by strategy.”

Source: company website · checked Sep 3, 2026
13
RDC Group LTDPartial evidence
Wellington, New ZealandHQ checked Sep 3, 20261-103

“RDC Group Ltd was formed in October 2016 to deliver outstanding consulting services to the public sector in New Zealand and overseas.”

Source: company website · checked Sep 3, 2026
14
HolmwoodsIndirect evidence
Wellington, New ZealandHQ checked Sep 3, 20261-103

“Holmwoods exists because we were tired of seeing projects slowed down by poor communication, unnecessary complexity, and a lack of accountability.”

Source: company website · checked Sep 3, 2026
15
Pro-Manage ConsultingStrong evidence
Wellington, New ZealandHQ checked Sep 3, 20261-102

“Pro-Manage Consulting combines operational and commercial expertise to drive project success in heavy industries, such as quarrying, waste management, and infrastructure.”

Source: company website · checked Sep 3, 2026
16
Kingfisher Group LimitedIndirect evidence
Wellington, New ZealandHQ checked Sep 3, 202611-502

“Kingfisher Group is an energetic team who believe that everything can be done or made better and we love doing something about that!”

Source: company website · checked Sep 3, 2026
17
Precision CityPartial evidence
Wellington, New ZealandHQ checked Sep 3, 20261-101

“Precision City helps cities, regions and organisations make better investments and policies for infrastructure, transport and land use with research, strategy and data.”

Source: company website · checked Sep 3, 2026
18
Luke Benner ConsultingPartial evidence
Wellington, New ZealandHQ checked Sep 3, 20261-101

“Based in Wellington, Luke Benner Consulting was established in 2019 to provide traffic and transportation engineering services and advice to clients throughout New Zealand.”

Source: company website · checked Sep 3, 2026
19
ST Clair Group LTDIndirect evidence
Wellington, New ZealandHQ checked Sep 3, 20261-101

“Consultants and trusted advisors, we have many years experience working for commercial and government organisations in New Zealand and overseas.”

Source: company website · checked Sep 3, 2026
20
Arben ConsultingIndirect evidence
Wellington, New ZealandHQ checked Sep 3, 20261-101

“Arben is about business.”

Source: company website · checked Sep 3, 2026

Showing 20 of 33 infrastructure consulting firms based in Wellington, New Zealand

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 183 reachable decision-makers.

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Infrastructure consulting firms based in Wellington, New Zealand at a glance

As of Sep 3, 2026
1-10Median size (employees)
AucklandLargest hub · 89 HQs
Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

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

Email recency for this list is measured across the whole New Zealand list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Wellington, over 33 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 infrastructure 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 Wellington, New Zealand whose own description of what they do matches “infrastructure 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 infrastructure consulting firms, and records with no verified work email. Companies headquartered outside Wellington 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, 183 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.

Infrastructure consulting firms by metro in New Zealand

Frequently asked

How many infrastructure consulting firms are there based in Wellington, New Zealand?

RevenueBase identified 33 infrastructure consulting firms headquartered in Wellington, 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 infrastructure consulting firms?

Auckland leads with 89 headquartered companies, followed by Wellington (33) and Christchurch (30).

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 183 verified decision-maker contacts tracked across these 33 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.