Company lists · Data refreshed September 2026

Top 25 Marine engineering and consulting firms based in New Zealand

Name: Marine engineering and 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 28, 2026 94 companies tracked

RevenueBase identified 94 marine engineering and consulting firms headquartered in New Zealand as of September 2026 and tracks 1,354 professional contacts across them, including 485 with verified work emails. Auckland is the largest hub.

This list covers marine engineering and 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 28, 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 28, 2026 86% judged on-target in blind review

94Companies

1,354Contacts tracked

485Verified emails

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The 25 largest marine engineering and consulting firms based in New Zealand

Ranked by team size

Top 25 of 94 marine engineering and consulting firms based in New Zealand, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to marine engineering and 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 28, 2026	1,001-5,000	568 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
2	Dialog Fitzroy LTD	Partial evidence	New Plymouth, New ZealandHQ checked Sep 28, 2026	501-1,000	150 contacts →
	Partial evidence “DIALOG Fitzroy is one of Australasia's largest multi-disciplined engineering services companies.” Source: RevenueBase Database · checked Sep 28, 2026
3	Culham Engineering Company LTD	Partial evidence	Whangarei, New ZealandHQ checked Sep 28, 2026	201-500	115 contacts →
	Partial evidence “Culham Engineering is privately owned and operated and has delivered innovative and high-value heavy engineering solutions throughout New Zealand for over 60 years.” Source: RevenueBase Database · checked Sep 28, 2026
4	LDE Engineers Scientists	Partial evidence	Gisborne, New ZealandHQ checked Sep 28, 2026	51-200	81 contacts →
	Partial evidence “LDE are specialists in geotechnical, civil, environmental and structural engineering.” Source: RevenueBase Database · checked Sep 28, 2026
5	Heron Construction Company LTD	Partial evidence	Papakura, New ZealandHQ checked Sep 28, 2026	51-200	52 contacts →
	Partial evidence “Heron Construction is a family owned and operated marine construction company that specialises in using backhoe dredgers for marine dredging.” Source: RevenueBase Database · checked Sep 28, 2026
6	Blue Barn Consulting LTD	Partial evidence	Auckland, New ZealandHQ checked Sep 28, 2026	11-50	28 contacts →
	Partial evidence “Blue Barn Consulting was established in 2008, and is proudly 100% New Zealand owned and operated.” Source: RevenueBase Database · checked Sep 28, 2026
7	JRG Energy	Indirect evidence	Taupo, New ZealandHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect 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 28, 2026
8	Marine Industrial Design LTD	Strong evidence	Auckland, New ZealandHQ checked Sep 28, 2026	11-50	24 contacts →
	Strong evidence “New Zealand's leading Naval Architecture and Marine engineering design consultancy company with a proven track record of practical engineering and design solutions.” Source: RevenueBase Database · checked Sep 28, 2026
9	Aimecs Engineering	Partial evidence	Avondale, New ZealandHQ checked Sep 28, 2026	11-50	23 contacts →
	Partial evidence “Aimecs Engineering is an ISO9001, ISO14001 & ISO45001 accredited engineering company based in Auckland and Albany.” Source: RevenueBase Database · checked Sep 28, 2026
10	GSM Engineering	Partial evidence	Auckland, New ZealandHQ checked Sep 28, 2026	51-200	17 contacts →
	Partial evidence “GSM Engineering is based in Auckland, New Zealand and was founded in 1987 by Darryl Gilbert, as a general jobbing shop.” Source: RevenueBase Database · checked Sep 28, 2026
11	Clendon Burns & Park LTD	Partial evidence	Wellington, New ZealandHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “Clendon Burns & Park ltd has operated as a firm of Consulting Structural and Civil Engineers in Wellington for over 60 years.” Source: RevenueBase Database · checked Sep 28, 2026
12	Ovlov Marine LTD	Partial evidence	Auckland, New ZealandHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “With a marine service and sales history spanning more than 45 years, the Ovlov Marine name is synonymous with quality, professionalism, responsiveness and high quality service and…” Source: RevenueBase Database · checked Sep 28, 2026
13	Action Engineering LTD	Partial evidence	Dunedin, New ZealandHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “Dunedin-based Action Engineering was founded in 1991.” Source: RevenueBase Database · checked Sep 28, 2026
14	Bellcon Limited	Partial evidence	Ruakaka, New ZealandHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “We’re proud to be a construction company delivering project management, engineering, and commissioning services for water and wastewater infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
15	Smart Alliances Limited	Partial evidence	Blenheim, New ZealandHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “Smart Alliances delivers inter-disciplinary engineering, resource management and architecture solutions for their clients - from simple compliance certification to fully…” Source: RevenueBase Database · checked Sep 28, 2026
16	Artifex Engineering Limited NZ	Partial evidence	Hastings, New ZealandHQ checked Sep 28, 2026	11-50	8 contacts →
	Partial evidence “Artifex Engineering Limited provides project, engineering, and construction management services to New Zealand’s industrial, process and export businesses.> Project Management…” Source: RevenueBase Database · checked Sep 28, 2026
17	Blueline Consulting NZ	Indirect evidence	Taupo, New ZealandHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “We are a forward-thinking consultancy driven by our passion for pioneering design concepts and advancing sustainable solutions.” Source: RevenueBase Database · checked Sep 28, 2026
18	Orakei Marine	Strong evidence	Orakei, New ZealandHQ checked Sep 28, 2026	11-50	7 contacts →
	Strong evidence “Orakei Marine is an owner operated business offering boat sales, Marina Management, Boat building, Engineering and Electrical from their base at Orakei Marina.” Source: RevenueBase Database · checked Sep 28, 2026
19	Contract Mechanical Services Limited	Partial evidence	Mount Maunganui, New ZealandHQ checked Sep 28, 2026	11-50	7 contacts →
	Partial evidence “CMS was established from a need we identified in the industry for trained, highly skilled and experienced mechancial engineering staff.” Source: RevenueBase Database · checked Sep 28, 2026
20	Pure Design & Engineering	Strong evidence	Auckland, New ZealandHQ checked Sep 28, 2026	11-50	6 contacts →
	Strong evidence “PURE Design & Engineering Limited is a New Zealand based engineering consultancy specializing in the design of advanced composite structures, with a focus on the marine industry.” Source: RevenueBase Database · checked Sep 28, 2026
21	Diesel Marine NZ	Strong evidence	Auckland, New ZealandHQ checked Sep 28, 2026	1-10	6 contacts →
	Strong evidence “At Diesel Marine we specialise in marine engineering and diesel maintenance for commercial and pleasure boats.” Source: RevenueBase Database · checked Sep 28, 2026
22	Hutchinson Consulting Engineers	Indirect evidence	Orewa, New ZealandHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
23	Lomocean Marine	Strong evidence	Auckland, New ZealandHQ checked Sep 28, 2026	1-10	4 contacts →
	Strong evidence “A New Zealand based boat design company providing naval architecture, exterior styling, structural and marine engineering expertise to the private, Government and commercial…” Source: RevenueBase Database · checked Sep 28, 2026
24	Arawai Engineering Consulting	Indirect evidence	New Plymouth, New ZealandHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “We assist in the design and construction management of above and below ground infrastructure; from buildings to land development, roading, and three waters networks.” Source: RevenueBase Database · checked Sep 28, 2026
25	Nelligan Consulting Engineers	Partial evidence	Auckland, New ZealandHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “We are Consulting Engineers offering a range of specialist services.” Source: RevenueBase Database · checked Sep 28, 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: marine engineering and 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 marine engineering and consulting firms.
Partial evidence: Its own public description names part of marine engineering and consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine engineering and 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 94 marine engineering and consulting firms based in New Zealand

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Marine engineering and consulting firms based in New Zealand at a glance

As of Sep 28, 2026

35.8%Verified-email coverage

14.4Average contacts per company

1-10Median size (employees)

24.5%Largest-city concentration · Auckland

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 94 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 marine engineering and 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 “marine engineering and 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 marine engineering and 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 marine engineering and 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, 485 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 28, 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 marine engineering and 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 marine engineering and consulting firms are there based in New Zealand?

RevenueBase identified 94 marine engineering and 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 marine engineering and consulting firms?

Auckland leads with 23 headquartered companies, followed by Christchurch (7) and Wellington (6).

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 485 verified decision-maker contacts tracked across these 94 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 28, 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.