Company lists · Data refreshed September 2026

Top 25 Underwater inspection companies based in Australia

Name: Underwater inspection companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 105 companies tracked

RevenueBase identified 105 underwater inspection companies headquartered in Australia as of September 2026 and tracks 828 professional contacts across them, including 270 with verified work emails. Perth is the largest hub.

This list covers underwater inspection companies headquartered in Australia, 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 22, 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 22, 2026 86% judged on-target in blind review

105Companies

828Contacts tracked

270Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest underwater inspection companies based in Australia

Ranked by team size

Top 25 of 105 underwater inspection companies based in Australia, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to underwater inspection companies: 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	Shelf Subsea	Indirect evidence	Osborne Park, AustraliaHQ checked Sep 22, 2026	51-200	119 contacts →
	Indirect evidence “SHELF is a totally independent commercial diving, engineering, project management and marine support & logistics company.” Source: RevenueBase Database · checked Sep 22, 2026
2	Pacific Marine Group	Indirect evidence	Townsville, AustraliaHQ checked Sep 22, 2026	51-200	117 contacts →
	Indirect evidence “Who Are We?” Source: RevenueBase Database · checked Sep 22, 2026
3	Waterproofing Integrity	Partial evidence	Silverwater, AustraliaHQ checked Sep 22, 2026	51-200	47 contacts →
	Partial evidence “Waterproofing Integrity offers independent third-party design consultation and quality control inspection services for waterproofing systems to ensure the intended performance and…” Source: RevenueBase Database · checked Sep 22, 2026
4	QMS	Partial evidence	Outer Harbor, AustraliaHQ checked Sep 22, 2026	11-50	43 contacts →
	Partial evidence “Quality Maritime Surveyors, QMS, are a South Australian based company that provide superior experience in personalised Non-Destructive Testing (NDT), Quality Control Inspections…” Source: RevenueBase Database · checked Sep 22, 2026
5	GEO Oceans	Partial evidence	Osborne Park, AustraliaHQ checked Sep 22, 2026	201-500	40 contacts →
	Partial evidence “Geo Oceans are an innovative subsea technology company offering industry-leading survey and inspection services to the Oil & Gas industry, we are proud to be part of the Vertech…” Source: RevenueBase Database · checked Sep 22, 2026
6	JFD Australia	Indirect evidence	Perth, AustraliaHQ checked Sep 22, 2026	1,001-5,000	38 contacts →
	Indirect evidence “Confidence under pressure.” Source: RevenueBase Database · checked Sep 22, 2026
7	Commercial Marine Group PTY LTD	Indirect evidence	Murarrie, AustraliaHQ checked Sep 22, 2026	11-50	33 contacts →
	Indirect evidence “At Commercial Marine Group, we provide trusted, innovative and sustainable marine construction solutions, ensuring the safety, longevity, and success of critical infrastructure.” Source: RevenueBase Database · checked Sep 22, 2026
8	Franmarine	Partial evidence	Henderson, AustraliaHQ checked Sep 22, 2026	51-200	25 contacts →
	Partial evidence “Franmarine is a diversified marine and underwater service provider to the Defence, Shipping, Infrastructure and Resource industries.” Source: RevenueBase Database · checked Sep 22, 2026
9	Global Marine Services	Indirect evidence	Kamerunga, AustraliaHQ checked Sep 22, 2026	1-10	22 contacts →
	Indirect evidence “We are a marine services provider offering marine surveys & engineering from an accredited marine surveyor.” Source: RevenueBase Database · checked Sep 22, 2026
10	Hunter Marine Surveyors	Indirect evidence	Mayfield West, AustraliaHQ checked Sep 22, 2026	11-50	19 contacts →
	Indirect evidence “Hunter Marine Surveyors is an ISO Accredited company dedicated to providing a complete and comprehensive service in all forms of marine surveying.” Source: RevenueBase Database · checked Sep 22, 2026
11	Guardian Geomatics	Indirect evidence	West Perth, AustraliaHQ checked Sep 22, 2026	51-200	16 contacts →
	Indirect evidence “We are an independent, Australian owned marine survey company with offices in Perth, Western Australia and Singapore.” Source: RevenueBase Database · checked Sep 22, 2026
12	UAM TEC	Indirect evidence	Campbellfield, AustraliaHQ checked Sep 22, 2026	11-50	15 contacts →
	Indirect evidence “UAM Tec's mission is to provide state-of-the-art solutions for subsea and underground exploration, mapping, and monitoring, utilizing advanced technologies such as vehicles…” Source: RevenueBase Database · checked Sep 22, 2026
13	Oceantec	Indirect evidence	Darwin, AustraliaHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “Oceantec provides a complete range of commercial diving activities to clients in the Oil and Gas, Shipping, and Marine Infrastructure Industries.” Source: RevenueBase Database · checked Sep 22, 2026
14	Oceanic Offshore PTY LTD	Indirect evidence	Dampier, AustraliaHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “Oceanic Offshore are recognised locally as one of Western Australia’s leading providers of commercial air diving services for its major Clients, Woodside Energy, Rio Tinto and…” Source: RevenueBase Database · checked Sep 22, 2026
15	Fremantle Commercial Diving	Indirect evidence	Bibra Lake, AustraliaHQ checked Sep 22, 2026	11-50	9 contacts →
	Indirect evidence “Fremantle Commercial Diving (FCD) is a multi-award winning company that has been providing exceptional quality diver-based services for over 35 years.” Source: RevenueBase Database · checked Sep 22, 2026
16	East West Dive & Salvage	Indirect evidence	Port Adelaide, AustraliaHQ checked Sep 22, 2026	11-50	8 contacts →
	Indirect evidence “East West Dive and Salvage have been in operation since 1996.” Source: RevenueBase Database · checked Sep 22, 2026
17	Focus Technology Solutions	Partial evidence	Bibra Lake, AustraliaHQ checked Sep 22, 2026	11-50	8 contacts →
	Partial evidence “Focus Technology Solutions specialises in ROV inspection, data collection, operational support and technical services for a range of offshore and onshore projects.” Source: RevenueBase Database · checked Sep 22, 2026
18	Shorewater Marine PTY LTD	Indirect evidence	Wangara, AustraliaHQ checked Sep 22, 2026	11-50	7 contacts →
	Indirect evidence “Shorewater Marine Pty Ltd is a Commercial Diving, Marine Construction and Marine Asset maintenance service provider operating in Western Australia.” Source: RevenueBase Database · checked Sep 22, 2026
19	Southern Ocean Subsea PTY LTD	Indirect evidence	Kingston, AustraliaHQ checked Sep 22, 2026	11-50	6 contacts →
	Indirect evidence “SOSub specialise in custom ROV and Subsea solutions, with an emphasis on aquaculture, science, and one-off special projects and tooling.” Source: RevenueBase Database · checked Sep 22, 2026
20	Roving Intelligence	Strong evidence	Melbourne, AustraliaHQ checked Sep 22, 2026	11-50	6 contacts →
	Strong evidence “ROVing Intelligence is a solution that provides underwater asset inspections and corresponding data through the use of robotics and artificial intelligence.” Source: RevenueBase Database · checked Sep 22, 2026
21	Subsea PTY LTD	Indirect evidence	Brisbane, AustraliaHQ checked Sep 22, 2026	11-50	5 contacts →
	Indirect evidence “Subsea Pty Ltd is a professional marine company offering a wide range of subsea services in support of environmental and engineering surveys and assessments.” Source: RevenueBase Database · checked Sep 22, 2026
22	Southern Divers	Indirect evidence	Melbourne, AustraliaHQ checked Sep 22, 2026	1-10	5 contacts →
	Indirect evidence “Southern Divers is a commercial diving company based in Melbourne.” Source: RevenueBase Database · checked Sep 22, 2026
23	Consult Marine	Indirect evidence	Leichhardt, AustraliaHQ checked Sep 22, 2026	1-10	4 contacts →
	Indirect evidence “Consult Marine prides itself on:* Serving our clients with excellence and integrity.* Providing adaptive engineering solutions that produce results with distinction.* Fostering a…” Source: RevenueBase Database · checked Sep 22, 2026
24	Waters Marine	Partial evidence	Arundel, AustraliaHQ checked Sep 22, 2026	1-10	4 contacts →
	Partial evidence “Waters Marine has extensive experience in all fields of underwater construction in Australia.” Source: RevenueBase Database · checked Sep 22, 2026
25	Plan B Plumbing Solutions PTY LTD	Indirect evidence	Moorabbin, AustraliaHQ checked Sep 22, 2026	1-10	4 contacts →
	Indirect evidence “At Plan B Plumbing Solutions we investigate all kinds of above and below ground water leaks in Melbourne for the Insurance and Building industries.” Source: RevenueBase Database · checked Sep 22, 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: underwater inspection companies. 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 underwater inspection companies.
Partial evidence: Its own public description names part of underwater inspection companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name underwater inspection companies. 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 105 underwater inspection companies based in Australia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 270 reachable decision-makers.

Free signup · no credit card

View the full list →

Underwater inspection companies based in Australia at a glance

As of Sep 22, 2026

32.6%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

5.7%Largest-city concentration · Perth

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured worldwide rather than for Australia, so it is reported there. Company counts and contact totals on this page are exact for Australia, over 105 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 underwater inspection companies, 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 Australia whose own description of what they do matches “underwater inspection companies”. 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 underwater inspection companies), 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 underwater inspection companies, and records with no verified work email. Companies headquartered outside Australia 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, 270 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 22, 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 underwater inspection companies, 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 underwater inspection companies are there based in Australia?

RevenueBase identified 105 underwater inspection companies headquartered in Australia 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?

Shelf Subsea, headquartered in Osborne Park, tops this list with the largest team on record.

Which city has the most underwater inspection companies?

Perth leads with 6 headquartered companies, followed by Gold Coast (4) and Melbourne (4).

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 270 verified decision-maker contacts tracked across these 105 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 22, 2026.

Ready to reach these companies? Verified emails and direct dials for all 105 underwater inspection companies based in Australia. Start with a free account, no credit card.

Download this list →

Related lists

Underwater inspection companies by geography

Browse the directory

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.