Company lists · Data refreshed September 2026

Top 25 Marine geotechnical firms based in New Zealand

RevenueBase identified 111 company matches for marine geotechnical firms associated with New Zealand as of September 2026 and tracks 1,141 professional contacts across them, including 588 with verified work emails. Auckland is the largest hub.

This list covers company matches for marine geotechnical firms associated with New Zealand, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
111Companies
1,141Contacts tracked
588Verified emails
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The 25 largest marine geotechnical firms based in New Zealand

Ranked by team size
Top 25 of 111 company matches for marine geotechnical firms based in New Zealand, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchChristchurch, New ZealandHQ recorded Sep 20, 202651-200121 contacts →

Exact match

“ENGEO Ltd (formally Geoscience Consulting) is a specialist consultancy group providing Engineering Geological, Geophysical, Environmental and Geotechnical Engineering services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchGisborne, New ZealandHQ recorded Sep 20, 202651-20081 contacts →

Exact match

“LDE are specialists in geotechnical, civil, environmental and structural engineering.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchPapakura, New ZealandHQ recorded Sep 20, 202651-20052 contacts →

Exact match

“Heron Construction is a family owned and operated marine construction company that specialises in using backhoe dredgers for marine dredging.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchWhangarei, New ZealandHQ recorded Sep 20, 202611-5040 contacts →

Exact match

“Cook Costello is a New Zealand multidisciplinary engineering consultancy working across geotechnical, civil and structural engineering, geophysics, land surveying, land…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchSouth Dunedin, New ZealandHQ recorded Sep 20, 202611-5039 contacts →

Exact match

“At GeoSolve we understand the importance of managing geological risk, and our specialist knowledge and proven track record means we can provide practical resilient solutions…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchChristchurch, New ZealandHQ recorded Sep 20, 202651-20039 contacts →

Exact match

“March Construction brings together the geotechnical and water infrastructure expertise, which when combined with the micro-tunnelling expertise of our sister company Rob Carr…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchAuckland, New ZealandHQ recorded Sep 20, 202611-5033 contacts →

Exact match

“Initia is a specialist geotechnical engineering consultancy that provides design, advisory and construction observation services for building, infrastructure and earthworks…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchWellington, New ZealandHQ recorded Sep 20, 202651-20032 contacts →

Exact match

“Abseil Access aims to assist in the improvement of New Zealand's infrastructure and give the public access to some of the most remarkable landscapes possible via our bespoke…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchHamilton, New ZealandHQ recorded Sep 20, 202611-5031 contacts →

Exact match

“We are specialists in geotechnical engineering and land and water contamination.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchHenderson, New ZealandHQ recorded Sep 20, 202651-20028 contacts →

Exact match

“With a rich legacy spanning over three decades, Soil & Rock Consultants stand at the forefront of the geotechnical, environmental, civil, and geological engineering landscape in…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchAuckland, New ZealandHQ recorded Sep 20, 202611-5028 contacts →

Exact match

“About Us: NAL Civil & Structural Engineers Limited is a multi-disciplinary engineering consultancy specialising in a broad range of civil infrastructure and building projects.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchChristchurch, New ZealandHQ recorded Sep 20, 202611-5026 contacts →

Exact match

“Rock Control are ground engineering specialists with a firm focus on construction drilling.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchAuckland, New ZealandHQ recorded Sep 20, 202611-5024 contacts →

Exact match

“New Zealand's leading Naval Architecture and Marine engineering design consultancy company with a proven track record of practical engineering and design solutions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchAvondale, New ZealandHQ recorded Sep 20, 202611-5023 contacts →

Exact match

“Aimecs Engineering is an ISO9001, ISO14001 & ISO45001 accredited engineering company based in Auckland and Albany.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchAuckland, New ZealandHQ recorded Sep 20, 202651-20023 contacts →

Exact match

“Geotechnical Engineering, and Engineering Geology, including Site Investigations, Earthworks Supervision and Control, Expansive Soils, Dynamic Probing, Foundation & Retaining Wall…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchAuckland, New ZealandHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“Engineering Geology Ltd (EGL) is a professional consultancy practice specialising in geotechnical and earthquake engineering and engineering geology.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchPorirua, New ZealandHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“Webster Drilling and Exploration Limited is a drilling contracting company based out of Porirua, Wellington, New Zealand.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchTauranga, New ZealandHQ recorded Sep 20, 20261-1018 contacts →

Exact match

“OUR SERVICES - Measurement Science, BATHYMETRIC & TOPOGRAPHIC Surveys We measure and model anything below, above or near the waterline in any format our clients require.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchAuckland & Christchurch, New ZealandHQ recorded Sep 20, 202611-5017 contacts →

Exact match

“Geotechnical Engineers of Choice!”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchAuckland Central, New ZealandHQ recorded Sep 20, 202611-5016 contacts →

Exact match

“Andy O’Sullivan was established to offer a nimble international best practice service in geotechnical design to the local infrastructure industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchRotorua, New ZealandHQ recorded Sep 20, 202611-5016 contacts →

Exact match

“BSK Consulting Engineers are a fun team of committed and experienced engineers based in Rotorua and Tauranga.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchWellington, New ZealandHQ recorded Sep 20, 202611-5015 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchAuckland & Christchurch, New ZealandHQ recorded Sep 20, 202651-20015 contacts →

Exact match

“McMillan Drilling is a leading multi-disciplinary drilling company operating throughout New Zealand and the Pacific.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchChristchurch, New ZealandHQ recorded Sep 20, 202611-5013 contacts →

Exact match

“LandTech Consulting is a specialist geotechnical service provider comprising a team of qualified Geotechnical Engineers and Engineering Geologists, with experience in geotechnical…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchWellington, New ZealandHQ recorded Sep 20, 202611-5013 contacts →

Exact match

“Torlesse Ltd is a professional services firm specialising in geotechnical and civil engineering solutions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 111 marine geotechnical firms based in New Zealand

See the full list, filter by size, metro and specialty, and access 588 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Marine geotechnical firms based in New Zealand at a glance

As of Sep 20, 2026
51.5%Verified-email coverage
10.3Average contacts per company
1-10Median size (employees)
27.0%Largest-city concentration · Auckland
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
60
11-50
38
51-200
12
201-500
1

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 111 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with New Zealand whose business descriptions match “marine geotechnical firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 588 professional contacts with verified work emails across the full matched dataset. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “marine geotechnical firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marine geotechnical firms are there based in New Zealand?

RevenueBase identified 111 company matches for marine geotechnical firms associated with New Zealand as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Engeo NZ & AU tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most marine geotechnical firms?

Auckland leads with 30 company records, followed by Christchurch (15) and Hamilton (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 588 professional contacts with verified work emails tracked across these 111 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 111 marine geotechnical firms based in New Zealand. Start with a free account, no credit card.

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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.