Company lists · Data refreshed September 2026

Top 15 Underwater intervention companies based in Nigeria

RevenueBase identified 100 company matches for underwater intervention companies associated with Nigeria as of September 2026 and tracks 1,458 professional contacts across them, including 103 with verified work emails. Port Harcourt is the largest hub.

This list covers company matches for underwater intervention companies associated with Nigeria, 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 22, 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 22, 2026 How this list was built
100Companies
1,458Contacts tracked
103Verified emails
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The 15 largest underwater intervention companies based in Nigeria

Ranked by team size
Top 15 of 100 company matches for underwater intervention companies based in Nigeria, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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 matchLagos, NigeriaHQ recorded Sep 22, 2026201-500409 contacts →

Exact match

“HydroDive provides a broad range of Marine Vessels, Air, Mixed Gas and Saturation Diving, ROV, AUV and Survey Services primarily to the offshore & inshore Petroleum Industry of…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchLekki, NigeriaHQ recorded Sep 22, 2026501-1,00090 contacts →

Exact match

“PFL Engineering Services Limited (PFL) is an indigenous company established in 2002.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchLagos, NigeriaHQ recorded Sep 22, 2026201-50073 contacts →

Exact match

“AOECL provides Drilling & Well completion, Manpower, Procurement, Dredging, Inspection, and EPCI services (Engineering, Procurement, Technical Consultancy, Facility Maintenance…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchPort Harcourt, NigeriaHQ recorded Sep 22, 202611-5030 contacts →

Exact match

“Overview Subsea100 Global(SHG), established in 2011, is a leading independent Offshore Services Contractor providing a range of Geophysical, Geotechnical and Subsea related…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchWarri, NigeriaHQ recorded Sep 22, 202611-5029 contacts →

Exact match

“Deepwater Engineering Limited (DEL) is a multi-discipline service provider formed by experienced professionals with years of direct experience within the major offshore Oil and…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchPort Harcourt, NigeriaHQ recorded Sep 22, 202611-5023 contacts →

Exact match

“STELOG Ltd since its establishment in 2008 and full offtake in 2012 is involved in Drilling, Intervention and Production services in the Oil and gas value chain.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchVictoria Island, NigeriaHQ recorded Sep 22, 202611-5018 contacts →

Exact match

“XPO Marine Services is an integrated provider of offshore marine support services to the oil and gas industry in West Africa.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchLekki, NigeriaHQ recorded Sep 22, 202611-5018 contacts →

Exact match

“Dovaheights Energy is an innovative and Technological driven independent company that uses Robotics to provide solutions Offshores.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchLekki, NigeriaHQ recorded Sep 22, 202611-5015 contacts →

Exact match

“DeepWater Consultancy & Engineering Services Limited is an Independent Oil and Gas Subsea technology, Pipeline management and Field development engineering consultancy company…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchPort Harcourt, NigeriaHQ recorded Sep 22, 202611-5015 contacts →

Exact match

“ARDREND Ltd is an indigenous engineering company, pioneering cutting edge blasting, corrosion management and zero-man entry robotic tank cleaning solutions, for the oil & gas…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchIkoyi, NigeriaHQ recorded Sep 22, 202651-20015 contacts →

Exact match

“Atlantic Marine & Oilfield Services has been operating as a distinguished Subsea Engineering and Diving Company since maintaining an ISO 9001-2015 certification.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchPort Harcourt, NigeriaHQ recorded Sep 22, 202611-5013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchPort-harcourt, NigeriaHQ recorded Sep 22, 202611-5010 contacts →

Exact match

“Masije Oil & Integrated Services is the largest indigenous Well intervention Services provider in Nigeria.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchLagos, NigeriaHQ recorded Sep 22, 202611-505 contacts →

Exact match

“Ethnarch Energy is a privately owned oilfield solutions company, offering end-to-end aerial and subsea oilfield services including but not limited to UAVs, ROVs, SUBSEA and SURF…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchLagos, NigeriaHQ recorded Sep 22, 20261-102 contacts →

Exact match

“SubseaRobotix brings to the Nigerian market a client-focussed and solution-based approach to subsea engineering structural integrity with technologies developed loved usinf ROVs…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 15 of 100 underwater intervention companies based in Nigeria

See the full list, filter by size, metro and specialty, and access 103 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Underwater intervention companies based in Nigeria at a glance

As of Sep 22, 2026
7.1%Verified-email coverage
14.6Average contacts per company
11-50Median size (employees)
32.0%Largest-city concentration · Port Harcourt
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
17
11-50
55
51-200
21
201-500
5
501-1,000
2

Email recency for this list is measured worldwide rather than for Nigeria, so it is reported there. Company counts and contact totals on this page are exact for Nigeria, over 100 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 Nigeria whose business descriptions match “underwater intervention companies” 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 103 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 22, 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 “underwater intervention companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many underwater intervention companies are there based in Nigeria?

RevenueBase identified 100 company matches for underwater intervention companies associated with Nigeria 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?

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

Which city has the most underwater intervention companies?

Port Harcourt leads with 32 company records, followed by Lagos (16) and Lagos State (5).

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 103 professional contacts with verified work emails tracked across these 100 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 22, 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.