Company lists · Data refreshed November 2026

Top 25 Subsurface consultants based in New Zealand

RevenueBase identified 59 company matches for subsurface consultants associated with New Zealand as of November 2026 and tracks 1,385 professional contacts across them, including 863 with verified work emails. Auckland is the largest hub.

This list covers company matches for subsurface consultants 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 November 6, 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 Nov 6, 2026 How this list was built
59Companies
1,385Contacts tracked
863Verified emails
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The 25 largest subsurface consultants based in New Zealand

Ranked by team size
Top 25 of 59 company matches for subsurface consultants based in New Zealand, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 2026501-1,000780 contacts →

Exact match

“Seequent, The Bentley Subsurface Company, helps organisations to understand the underground, giving them the confidence to make better decisions faster.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchChristchurch, New ZealandHQ recorded Nov 6, 202651-200124 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSouth Dunedin, New ZealandHQ recorded Nov 6, 202611-5042 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLower Hutt/kāpiti Coast, New ZealandHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“Great People.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchWhangarei, New ZealandHQ recorded Nov 6, 202611-5038 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchHenderson, New ZealandHQ recorded Nov 6, 202651-20032 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchTaupo, New ZealandHQ recorded Nov 6, 202611-5032 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAuckland, New ZealandHQ recorded Nov 6, 202611-5031 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchTauranga, New ZealandHQ recorded Nov 6, 202651-20024 contacts →

Exact match

“Face Mining Services Pty Ltd is your trusted partner in underground mining, bringing leading expertise to any corner of the globe with the highest standard of service, from…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchWellington, New ZealandHQ recorded Nov 6, 202611-5015 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHuntly, New ZealandHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“Terra Firma Mining - New Zealand’s leading mining contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWhangarei, New ZealandHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“RS Eng is specialised in providing Geotechnical, Civil, Structural & Seismic engineering consulting services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchOnekawa, New ZealandHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Civil Services HB Ltd specialises in civil and geotechnical engineering design, surveying (topographical, construction setout), quality assurance compaction testing and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPapakura, New ZealandHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Trenchmate is a New Zealand-owned company dedicated to delivering certified shoring, groundwater treatment, and solids control solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchBromley, New ZealandHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Southern Geophysical Ltd is a leading provider of geophysical solutions for the environmental, engineering and exploration communities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAuckland, New ZealandHQ recorded Nov 6, 20261-108 contacts →

Exact match

“We are an experienced and highly motivated team of land and construction surveyors specialising in land development and subdivision projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMapua, New ZealandHQ recorded Nov 6, 20261-107 contacts →

Exact match

“GeoSolutions NZ is a specialist geotechnical consultancy providing practical, project-focused advice for property development, subdivision and new builds throughout New Zealand.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchStratford, New ZealandHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Since 1990 Interdrill has been providing outstanding drilling services to clients in Wellington, Wanganui and the Taranaki.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLincoln, New ZealandHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Landform Projects Ltd is locally owned, with a team bringing over 50 years of combined experience in site investigation, geotechnical testing, and land design projects across…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAuckland, New ZealandHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Established in 1996, Calvest Sixteen Limited has collectively more than 40 years experience searching and recruiting for the international mining & resources engineering industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAuckland, New ZealandHQ recorded Nov 6, 20261-103 contacts →

Exact match

“Baseline Geotechnical was founded in July 2018 by Principal Engineering Geologist Cameron Lines.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchTauranga, New ZealandHQ recorded Nov 6, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchPukekohe, New ZealandHQ recorded Nov 6, 20261-103 contacts →

Exact match

“GCL is an engineering consultancy serving the residential, commercial and land development sectors in the Auckland, Waikato and Queenstown regions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAuckland, New ZealandHQ recorded Nov 6, 202611-503 contacts →

Exact match

“Lander Geotechnical Consultants were established in 2014 by Principal Geotechnical Engineer, Shane Lander, who heads a professional team geotechnical engineers and geologists.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAuckland, New ZealandHQ recorded Nov 6, 202611-503 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 59 subsurface consultants based in New Zealand

See the full list, filter by size, metro and specialty, and access 863 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Subsurface consultants based in New Zealand at a glance

As of Nov 6, 2026
62.3%Verified-email coverage
23.5Average contacts per company
1-10Median size (employees)
20.3%Largest-city concentration · Auckland
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
34
11-50
19
51-200
5
501-1,000
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 59 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 “subsurface consultants” 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 863 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 November 6, 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 “subsurface consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many subsurface consultants are there based in New Zealand?

RevenueBase identified 59 company matches for subsurface consultants associated with New Zealand as of November 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?

Seequent tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most subsurface consultants?

Auckland leads with 12 company records, followed by Christchurch (9) and Wellington (3).

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 863 professional contacts with verified work emails tracked across these 59 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 November 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 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.