Company lists · Data refreshed September 2026

Top 25 Drilling services contractors based in Nigeria

Name: Drilling services contractors based in Nigeria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 197 companies tracked

RevenueBase identified 197 drilling services contractors headquartered in Nigeria as of September 2026 and tracks 2,240 professional contacts across them, including 178 with verified work emails. Port Harcourt is the largest hub.

This list covers drilling services 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 16, 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 16, 2026 86% judged on-target in blind review

197Companies

2,240Contacts tracked

178Verified emails

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The 25 largest drilling services contractors based in Nigeria

Ranked by team size

Top 25 of 197 drilling services contractors based in Nigeria, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to drilling services 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Emval Nigeria Limited	Indirect evidence	Lekki, NigeriaHQ checked Sep 16, 2026	51-200	109 contacts →
	Indirect evidence “The Company Emval Nigeria Limited is a servicing company that provides onshore and offshore technical services to the Oil & Gas industry.” Source: RevenueBase Database · checked Sep 16, 2026
2	Depthwize	Strong evidence	Lagos, NigeriaHQ checked Sep 16, 2026	201-500	102 contacts →
	Strong evidence “Depthwize is a Nigerian Drilling Contractor with current assets in the swamp and shallow offshore drilling market.” Source: RevenueBase Database · checked Sep 16, 2026
3	Aviam Offshore Engineering Company Limited	Partial evidence	Lagos, NigeriaHQ checked Sep 16, 2026	201-500	73 contacts →
	Partial evidence “AOECL provides Drilling & Well completion, Manpower, Procurement, Dredging, Inspection, and EPCI services (Engineering, Procurement, Technical Consultancy, Facility Maintenance…” Source: RevenueBase Database · checked Sep 16, 2026
4	Elper Oilfield Engineering	Indirect evidence	Lagos, NigeriaHQ checked Sep 16, 2026	501-1,000	70 contacts →
	Indirect evidence “ELPER has built in time, a strong international network, and a specialized engineering company, providing services ranging from Engineering Procurement & Construction to Marine…” Source: RevenueBase Database · checked Sep 16, 2026
5	Thompson & Grace Investments Limited	Indirect evidence	Port-harcourt, NigeriaHQ checked Sep 16, 2026	201-500	67 contacts →
	Indirect evidence “Thompson & Grace Investment Limited (TGIL) an Engineering/ Oilfield Service company in Nigeria provides services to the Engineering Sector/Oil and Gas industry.” Source: RevenueBase Database · checked Sep 16, 2026
6	OIL Quest International Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 16, 2026	201-500	50 contacts →
	Indirect evidence “Oil Quest International Limited (OQIL) is an indigenous Oil and Gas integrated technical support Service Company incorporated in Nigeria as a limited liability company on 11th…” Source: RevenueBase Database · checked Sep 16, 2026
7	NEW Energy Services Company Limited	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 16, 2026	51-200	45 contacts →
	Indirect evidence “New Energy Services Company Limited (NESSCO) is a 100% Nigerian owned company incorporated in 2003.” Source: RevenueBase Database · checked Sep 16, 2026
8	Subsea100 Global	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 16, 2026	11-50	30 contacts →
	Partial evidence “Overview Subsea100 Global(SHG), established in 2011, is a leading independent Offshore Services Contractor providing a range of Geophysical, Geotechnical and Subsea related…” Source: RevenueBase Database · checked Sep 16, 2026
9	Deepwater Engineering Limited DEL	Indirect evidence	Warri, NigeriaHQ checked Sep 16, 2026	11-50	29 contacts →
	Indirect 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 16, 2026
10	Waal Energy Services Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 16, 2026	51-200	29 contacts →
	Indirect evidence “Registered in 2020 and commenced business operations in October 2022, Waal Energy Services Limited is a full-spectrum technical solutions company focused on delivering end-to-end…” Source: RevenueBase Database · checked Sep 16, 2026
11	Nondera Energy Services	Partial evidence	Lagos, NigeriaHQ checked Sep 16, 2026	11-50	24 contacts →
	Partial evidence “Nondera Energy Services is an ISO 9001:2015 certified company that provides telecommunications, engineering, procurement and technical assistance and drilling services to clients…” Source: RevenueBase Database · checked Sep 16, 2026
12	Omasup Energy Services Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 16, 2026	11-50	24 contacts →
	Indirect evidence “Oil & Gas Services company” Source: RevenueBase Database · checked Sep 16, 2026
13	Starfix Geosolutions Services LTD	Indirect evidence	Lagos, NigeriaHQ checked Sep 16, 2026	11-50	23 contacts →
	Indirect evidence “Starfix Geosolutions Services Limited is an Oil and Gas service company that leverages Expertise, Knowledge, and Technology to provide safe and innovative solutions to challenges…” Source: RevenueBase Database · checked Sep 16, 2026
14	Stelog Energy Group	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 16, 2026	11-50	23 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026
15	Bicens Resources Limited	Partial evidence	Warri, NigeriaHQ checked Sep 16, 2026	501-1,000	22 contacts →
	Partial 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 16, 2026
16	Harvex Geosolutions Limited	Indirect evidence	Lagos, NigeriaHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “Harvex Geosolutions Limited is a privately-owned company, operating in the Exploration & Production (E&P) services sector to provide niche and/or cutting-edge seismic…” Source: RevenueBase Database · checked Sep 16, 2026
17	Linkso Nigeria LTD	Indirect evidence	Lagos, NigeriaHQ checked Sep 16, 2026	201-500	14 contacts →
	Indirect evidence “LINKSO NIGERIA LTD is a leading service provider in the oil and gas, power and construction industries.” Source: RevenueBase Database · checked Sep 16, 2026
18	Epic Atlantic Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 16, 2026	11-50	12 contacts →
	Indirect evidence “Epic Atlantic Limited is an indigeneous multi-disciplinary engineering and technology company formed with a passion for technical and operational excellence for the oil and gas…” Source: RevenueBase Database · checked Sep 16, 2026
19	CD Princeton	Indirect evidence	Port-harcourt, NigeriaHQ checked Sep 16, 2026	51-200	10 contacts →
	Indirect evidence “CD PRINCETON NIGERIA LIMITED is a fully registered company in Nigeria with the aim to deliver highly quality, cost effective and timely services and products to clients with its…” Source: RevenueBase Database · checked Sep 16, 2026
20	Ramec Integrated Services Limited Risl A Subsidiary Of Ramec Group	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 16, 2026	51-200	10 contacts →
	Partial evidence “RAMEC Integrated Services Limited (RISL) is a subsidiary of the RAMEC GROUP, a wholly indigenous Nigerian company, offering services in Directional Drilling, Measurement While…” Source: RevenueBase Database · checked Sep 16, 2026
21	Mesc Energy Services	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 16, 2026	11-50	8 contacts →
	Partial evidence “MESC Energy Services offers drilling, well intervention, pipeline and asset integrity services focused to deliver efficiency.” Source: RevenueBase Database · checked Sep 16, 2026
22	Structbuild Construction Limited	Indirect evidence	Lagos, NigeriaHQ checked Sep 16, 2026	11-50	7 contacts →
	Indirect evidence “StructBuild Construction Limited is a Nigerian-owned civil engineering and construction company established in 2017 to deliver disciplined, safety-driven construction services to…” Source: RevenueBase Database · checked Sep 16, 2026
23	Tirex Petroleum & Energy Limited	Indirect evidence	Lagos, NigeriaHQ checked Sep 16, 2026	11-50	6 contacts →
	Indirect evidence “We are an energy services firm with a focus on providing world-class solutions to the Nigerian Energy industry.” Source: RevenueBase Database · checked Sep 16, 2026
24	Ingrebourne Energy Limited	Indirect evidence	Lagos, NigeriaHQ checked Sep 16, 2026	51-200	5 contacts →
	Indirect evidence “Ingrebourne Energy was founded in 2020 to breakdown the complexity associated with the oil and gas industry.” Source: RevenueBase Database · checked Sep 16, 2026
25	Wedcon Petroleum	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 16, 2026	11-50	4 contacts →
	Indirect evidence “Wedcon Petroleum was incorporated as a limited liability company in 1979.” Source: RevenueBase Database · checked Sep 16, 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: drilling services contractors. 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 drilling services contractors.
Partial evidence: Its own public description names part of drilling services contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name drilling services contractors. 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 197 drilling services contractors based in Nigeria

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Drilling services contractors based in Nigeria at a glance

As of Sep 16, 2026

7.9%Verified-email coverage

11.4Average contacts per company

11-50Median size (employees)

29.9%Largest-city concentration · Port Harcourt

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 197 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 drilling services 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 “drilling services 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 drilling services 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 drilling services 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, 178 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 16, 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.

Drilling services contractors by metro

Drilling services contractors in Port Harcourt59
Drilling services contractors in Lagos32

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 drilling services 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 drilling services contractors are there based in Nigeria?

RevenueBase identified 197 drilling services 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?

Emval Nigeria Limited, headquartered in Nigeria, tops this list with the largest team on record.

Which city has the most drilling services contractors?

Port Harcourt leads with 59 headquartered companies, followed by Lagos (32) and Lagos State (15).

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 178 verified decision-maker contacts tracked across these 197 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 16, 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.