Company lists · Data refreshed September 2026

Top 25 Oil and gas well services based in Nigeria

Name: Oil and gas well services based in Nigeria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 336 companies tracked

RevenueBase identified 336 oil and gas well services headquartered in Nigeria as of September 2026 and tracks 5,229 professional contacts across them, including 704 with verified work emails. Port Harcourt is the largest hub.

This list covers oil and gas well services 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 17, 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 17, 2026 86% judged on-target in blind review

336Companies

5,229Contacts tracked

704Verified emails

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The 25 largest oil and gas well services based in Nigeria

Ranked by team size

Top 25 of 336 oil and gas well services based in Nigeria, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas well services: 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	AOS Orwell Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	1,001-5,000	481 contacts →
	Indirect evidence “AOS Orwell Limited is the largest indigenous Oilfield Services Company in Nigeria.” Source: RevenueBase Database · checked Sep 17, 2026
2	Marine Platforms Limited	Strong evidence	Victoria Island, NigeriaHQ checked Sep 17, 2026	201-500	377 contacts →
	Strong evidence “Marine Platforms is an oil service company focused on providing diverse services to the upstream sector of the oil & gas industry in Nigeria and the African continent sustainably.” Source: RevenueBase Database · checked Sep 17, 2026
3	Geoplex Drillteq Limited	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 17, 2026	201-500	356 contacts →
	Indirect evidence “Geoplex Drillteq Limited is the fastest-growing indigenous service provider in Sub-Saharan Africa, proudly holding the API Q2 certification, a testament to our commitment to…” Source: RevenueBase Database · checked Sep 17, 2026
4	Bell OIL & GAS	Strong evidence	Lagos, NigeriaHQ checked Sep 17, 2026	51-200	129 contacts →
	Strong evidence “Bell Oil & Gas has grown rapidly to become a leading indigenous oil service company in Nigeria.” Source: RevenueBase Database · checked Sep 17, 2026
5	Emval Nigeria Limited	Strong evidence	Lekki, NigeriaHQ checked Sep 17, 2026	51-200	109 contacts →
	Strong 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 17, 2026
6	Hydroserve Group	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	51-200	86 contacts →
	Strong evidence “Hydroserve Group is a leading oil and gas company which started as Hydroserve Oil Services Nigeria Limited in November, We began operations in with Pipeline & Process, and Pumping…” Source: RevenueBase Database · checked Sep 17, 2026
7	Kenyon International West Africa Company Limited	Indirect evidence	Portharcourt., NigeriaHQ checked Sep 17, 2026	51-200	74 contacts →
	Indirect evidence “Kenyon International West Africa Company Limited is one of the leading and fastest-growing energy servicing companies in Nigeria with robust technical expertise, offering vital…” Source: RevenueBase Database · checked Sep 17, 2026
8	Aviam Offshore Engineering Company Limited	Partial evidence	Lagos, NigeriaHQ checked Sep 17, 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 17, 2026
9	Peso Energy Services	Strong evidence	Lekki Phase 1, NigeriaHQ checked Sep 17, 2026	201-500	72 contacts →
	Strong evidence “PESO Energy Services is a leader in the Oil and Gas services industry, specializing in Engineering Services, Early Production Facility Packages, Oil Field Services, Specialized…” Source: RevenueBase Database · checked Sep 17, 2026
10	Vagan OIL And GAS Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	201-500	66 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
11	Pegis Global Services Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	11-50	57 contacts →
	Strong evidence “PEGIS GLOBAL Services Limited (PGSL) is a fast growing indigenous company with operational base in Port Harcourt, focused on providing services in the Oil and gas Industry in the…” Source: RevenueBase Database · checked Sep 17, 2026
12	Sellafield Energy	Strong evidence	Lekki, NigeriaHQ checked Sep 17, 2026	11-50	56 contacts →
	Strong evidence “Sellafield Energy is a leading oil and gas support provider that has within a short time, emerged as a reference point in recruitment services and technical manpower support…” Source: RevenueBase Database · checked Sep 17, 2026
13	Cakasa Maintenance Services Limited	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	51-200	52 contacts →
	Partial evidence “Cakasa Maintenance Services Limited is a global oil servicing company in Nigeria, with Head Office in PortHarcourt.” Source: RevenueBase Database · checked Sep 17, 2026
14	OIL Quest International Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	201-500	50 contacts →
	Strong 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 17, 2026
15	GCA Energy Limited	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 17, 2026	11-50	46 contacts →
	Indirect evidence “GCA Energy Limited was registered in the late eighties as Greg Continental Agency Limited and acted as an Agency Company to Siemens Building Technologies UK Limited providing…” Source: RevenueBase Database · checked Sep 17, 2026
16	NEW Energy Services Company Limited	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 17, 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 17, 2026
17	True-Blue Energy Services Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	51-200	40 contacts →
	Strong evidence “True-Blue Energy Services Limited, a fully indigenous oil and gas services company in Nigeria with proven capacity for supporting clients/major projects in Onshore and Offshore…” Source: RevenueBase Database · checked Sep 17, 2026
18	Goddie Chemicals International LTD	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “Goddie Chemicals International Limited is a leading premium chemical solutions and specialized engineering services expert, positioned to reliably serve as a one-stop shop for all…” Source: RevenueBase Database · checked Sep 17, 2026
19	Zamam Offshore Services Limited	Strong evidence	Lekki Phase 1, NigeriaHQ checked Sep 17, 2026	51-200	36 contacts →
	Strong evidence “Zamam Offshore Services Limited (ZOSL) is a Nigerian oilfield services company responsible for the provision of production support services to the oil and gas industry in Africa…” Source: RevenueBase Database · checked Sep 17, 2026
20	TAG Energy Limited	Strong evidence	Lekki, NigeriaHQ checked Sep 17, 2026	11-50	33 contacts →
	Strong evidence “TAG Energy is an integrated service company offering a comprehensive range of oilfield products and support services in the Nigerian Oil and Gas Industry.” Source: RevenueBase Database · checked Sep 17, 2026
21	Funtay Group	Strong evidence	Lagos, NigeriaHQ checked Sep 17, 2026	51-200	30 contacts →
	Strong evidence “Funtay Group is a Nigerian Oil and Gas company involved in the entire value chain of the Oil & Gas industry, from Upstream to Downstream to Gas and Power.” Source: RevenueBase Database · checked Sep 17, 2026
22	Forte Upstream Services Limited	Indirect evidence	Lekki Phase 1, NigeriaHQ checked Sep 17, 2026	201-500	29 contacts →
	Indirect evidence “Indigenous oilfield chemicals & engineering service provider across the upstream value chain.” Source: RevenueBase Database · checked Sep 17, 2026
23	First Priority Resources International Limited	Partial evidence	Lekki, NigeriaHQ checked Sep 17, 2026	51-200	26 contacts →
	Partial evidence “First Priority Resources International Ltd (FPRIL) is a vibrant oil servicing company that offers Marine Logistics, Procurement, Engineering and Equipment Rental services.” Source: RevenueBase Database · checked Sep 17, 2026
24	Chairborne GSL	Strong evidence	Vi, NigeriaHQ checked Sep 17, 2026	11-50	25 contacts →
	Strong evidence “Chairborne GSL is an Oil and Gas service company focused on providing diverse services to the oil & gas industry in Nigeria and Africa.” Source: RevenueBase Database · checked Sep 17, 2026
25	Nondera Energy Services	Indirect evidence	Lagos, NigeriaHQ checked Sep 17, 2026	11-50	24 contacts →
	Indirect 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 17, 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: oil and gas well services. 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 oil and gas well services.
Partial evidence: Its own public description names part of oil and gas well services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas well services. 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 336 oil and gas well services based in Nigeria

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Oil and gas well services based in Nigeria at a glance

As of Sep 17, 2026

13.5%Verified-email coverage

15.6Average contacts per company

11-50Median size (employees)

37.2%Largest-city concentration · Port Harcourt

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

149

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 336 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 oil and gas well services, 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 “oil and gas well services”. 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 oil and gas well services), 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 oil and gas well services, 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, 704 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 17, 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.

Oil and gas well services by metro

Oil and gas well services in Port Harcourt125
Oil and gas well services in Lagos52

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 oil and gas well services, 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 oil and gas well services are there based in Nigeria?

RevenueBase identified 336 oil and gas well services 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?

AOS Orwell Limited, headquartered in Port Harcourt, tops this list with the largest team on record.

Which city has the most oil and gas well services?

Port Harcourt leads with 125 headquartered companies, followed by Lagos (52) and Rivers (22).

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 704 verified decision-maker contacts tracked across these 336 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 17, 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.