Company lists · Data refreshed September 2026

Top 22 Deepwater platform contractors based in Nigeria

RevenueBase identified 108 deepwater platform contractors headquartered in Nigeria as of September 2026 and tracks 1,985 professional contacts across them, including 158 with verified work emails. Lagos is the largest hub.

This list covers deepwater platform contractors headquartered in Nigeria, 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
108Companies
1,985Contacts tracked
158Verified emails
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The 22 largest deepwater platform contractors based in Nigeria

Ranked by team size
Top 22 of 108 deepwater platform contractors based in Nigeria, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to deepwater platform contractors: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLagos, NigeriaHQ checked Sep 28, 2026201-500243 contacts →

Indirect evidence

“Ariosh delivers engineering and construction services in the onshore, offshore and subsea segment of the oil and gas sector in Nigeria, West Africa.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidencePort Harcourt, NigeriaHQ checked Sep 28, 202611-50139 contacts →

Indirect evidence

“Kohasa Engineering Company Limited is an oil and energy company based out of Plot 474, Trans Amadi industrial layout, Port Harcourt, RIVERS, Nigeria.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceLagos, NigeriaHQ checked Sep 28, 2026201-500102 contacts →

Partial evidence

“Depthwize is a Nigerian Drilling Contractor with current assets in the swamp and shallow offshore drilling market.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceLagos, NigeriaHQ checked Sep 28, 2026201-50073 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceLagos, NigeriaHQ checked Sep 28, 202651-20048 contacts →

Indirect evidence

“With headquarters in Lagos, Nigeria, NigerStar7 is a company wholly owned by Subsea7.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceOsubi-warri, NigeriaHQ checked Sep 28, 2026201-50045 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceLagos, NigeriaHQ checked Sep 28, 2026201-50036 contacts →

Indirect evidence

“Ocean Deep Drilling ESV Nigeria Limited (ODENL) is the Nigerian joint venture of Valaris, the world's leading offshore drilling services provider.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceLekki Phase 1, NigeriaHQ checked Sep 28, 2026501-1,00035 contacts →

Indirect evidence

“Gremoore, established in 2013, is a 100% Nigerian company and a leading indigenous provider of offshore engineering, procurement, fabrication, installation associated with…”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceWarri, NigeriaHQ checked Sep 28, 202611-5029 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceLekki Phase 1, NigeriaHQ checked Sep 28, 202651-20027 contacts →

Indirect evidence

“GMUNU is a full-service Engineering Procurement and Construction Company.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceWarri, NigeriaHQ checked Sep 28, 2026501-1,00022 contacts →

Indirect evidence

“Bicens Resources Limited is a tech savvy multidisciplinary firm with competencies in the Oil & Gas Industry, Providing and delivering exceptional solutions in DRILLING,OPERATIONS…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceLagos, NigeriaHQ checked Sep 28, 202611-5021 contacts →

Indirect evidence

“Quest Oil and Engineering Services Limited is a value-driven company offering full-service in oil and gas, as well as engineering service.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidencePort Harcourt, NigeriaHQ checked Sep 28, 202611-5013 contacts →

Indirect evidence

“Doxa Int’l Engineering Services Ltd is an engineering-based support services company bridging the gap between IOCs and OEMs.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidencePort Harcourt, NigeriaHQ checked Sep 28, 202611-5013 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceLagos, NigeriaHQ checked Sep 28, 202611-5011 contacts →

Indirect evidence

“Offshore Dimensions Limited is a Nigerian EPC company that is committed to building engineering and construction capabilities in Nigeria.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceLagos, NigeriaHQ checked Sep 28, 202611-5011 contacts →

Indirect evidence

“Timproxy operates a diversified business with a special focus on Oil and Gas, Marine, and Power industry.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceLekki, NigeriaHQ checked Sep 28, 202651-2008 contacts →

Indirect evidence

“Derotech Offshore Services Limited is a preferred local offshore drilling company in Nigeria with technical support and ultramodern equipment from Pacific Drilling to respond to…”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceVictoria Island, NigeriaHQ checked Sep 28, 202651-2007 contacts →

Indirect evidence

“Our Story 100% Indigenous Craigwal Petroshore Limited is a Nigerian Engineering and Construction Company in the Oil and Gas and marine industry.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceVictoria Island, NigeriaHQ checked Sep 28, 202611-506 contacts →

Indirect evidence

“Zeconia GIL is a world class servicing company that provides total Offshore and Onshore solutions across the entire Oil & Gas Industry.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidencePort Harcourt, NigeriaHQ checked Sep 28, 20261-106 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceLekki, NigeriaHQ checked Sep 28, 20261-105 contacts →

Indirect evidence

“Kaizen Global Engineering Solutions Ltd.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceLagos, NigeriaHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026

Showing 22 of 108 deepwater platform contractors based in Nigeria

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Deepwater platform contractors based in Nigeria at a glance

As of Sep 28, 2026
8.0%Verified-email coverage
18.4Average contacts per company
11-50Median size (employees)
22.2%Largest-city concentration · Lagos
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
15
11-50
41
51-200
29
201-500
15
501-1,000
6
1,001-5,000
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 108 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 deepwater platform contractors, 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 Nigeria whose own description of what they do matches “deepwater platform contractors”. 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 deepwater platform contractors), 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 deepwater platform contractors, and records with no verified work email. Companies headquartered outside Nigeria 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, 158 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 deepwater platform contractors, 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 deepwater platform contractors are there based in Nigeria?

RevenueBase identified 108 deepwater platform contractors headquartered in Nigeria 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?

Ariosh, headquartered in Lagos, tops this list with the largest team on record.

Which city has the most deepwater platform contractors?

Lagos leads with 24 headquartered companies, followed by Port Harcourt (21) and Lagos State (11).

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 158 verified decision-maker contacts tracked across these 108 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.