Company lists · Data refreshed September 2026

Top 25 Oilfield service companies based in Nigeria

Name: Oilfield service companies based in Nigeria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 370 companies tracked

RevenueBase identified 370 oilfield service companies headquartered in Nigeria as of September 2026 and tracks 6,158 professional contacts across them, including 730 with verified work emails. Port Harcourt is the largest hub.

This list covers oilfield service companies 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 15, 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 15, 2026 86% judged on-target in blind review

370Companies

6,158Contacts tracked

730Verified emails

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The 25 largest oilfield service companies based in Nigeria

Ranked by team size

Top 25 of 370 oilfield service companies based in Nigeria, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to oilfield service 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	AOS Orwell Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	1,001-5,000	481 contacts →
	Strong evidence “AOS Orwell Limited is the largest indigenous Oilfield Services Company in Nigeria.” Source: RevenueBase Database · checked Sep 15, 2026
2	Marine Platforms Limited	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 15, 2026	201-500	377 contacts →
	Indirect 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 15, 2026
3	Geoplex Drillteq Limited	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 15, 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 15, 2026
4	OES Energy Services Limited	Strong evidence	Lagos, NigeriaHQ checked Sep 15, 2026	51-200	172 contacts →
	Strong evidence “Vision To be the preferred Integrated Upstream Oilfield Services Provider in Africa creating value for all stakeholders.” Source: RevenueBase Database · checked Sep 15, 2026
5	Ponticelli Nigeria	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	501-1,000	151 contacts →
	Indirect evidence “PONTICELLI NIGERIA [PNL] is a subsidiary of PONTICELLI Frères Group, a leading European services supplier to companies in the energy, industrial, and infrastructural sectors.” Source: RevenueBase Database · checked Sep 15, 2026
6	Bell OIL & GAS	Indirect evidence	Lagos, NigeriaHQ checked Sep 15, 2026	51-200	129 contacts →
	Indirect evidence “Bell Oil & Gas has grown rapidly to become a leading indigenous oil service company in Nigeria.” Source: RevenueBase Database · checked Sep 15, 2026
7	Emval Nigeria Limited	Indirect evidence	Lekki, NigeriaHQ checked Sep 15, 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 15, 2026
8	Hydroserve Group	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	51-200	86 contacts →
	Indirect 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 15, 2026
9	Aviam Offshore Engineering Company Limited	Indirect evidence	Lagos, NigeriaHQ checked Sep 15, 2026	201-500	73 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 15, 2026
10	Peso Energy Services	Indirect evidence	Lekki Phase 1, NigeriaHQ checked Sep 15, 2026	201-500	72 contacts →
	Indirect 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 15, 2026
11	Thompson & Grace Investments Limited	Strong evidence	Port-harcourt, NigeriaHQ checked Sep 15, 2026	201-500	67 contacts →
	Strong 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 15, 2026
12	Vagan OIL And GAS Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	201-500	66 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
13	Pegis Global Services Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	11-50	57 contacts →
	Indirect 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 15, 2026
14	Sellafield Energy	Indirect evidence	Lekki, NigeriaHQ checked Sep 15, 2026	11-50	56 contacts →
	Indirect 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 15, 2026
15	Cakasa Maintenance Services Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	51-200	52 contacts →
	Indirect evidence “Cakasa Maintenance Services Limited is a global oil servicing company in Nigeria, with Head Office in PortHarcourt.” Source: RevenueBase Database · checked Sep 15, 2026
16	OIL Quest International Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 15, 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 15, 2026
17	Baklang Group	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 15, 2026	501-1,000	49 contacts →
	Indirect evidence “Incorporated in 1994, Baklang Group has become the reference for quality and professional excellence within the oil and gas services sector in Africa.” Source: RevenueBase Database · checked Sep 15, 2026
18	Field Offshore Design Engineering LTD	Indirect evidence	Lagos, NigeriaHQ checked Sep 15, 2026	51-200	48 contacts →
	Indirect evidence “Oil and Gas servicing company.” Source: RevenueBase Database · checked Sep 15, 2026
19	NEW Energy Services Company Limited	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 15, 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 15, 2026
20	Stac Marine Offshore Limited	Indirect evidence	Lagos Nigeria, NigeriaHQ checked Sep 15, 2026	201-500	41 contacts →
	Indirect evidence “STAC Marine Offshore is a prominent indigenous Nigerian company known for its commitment to service excellence in the operation and maintenance of Floating Production Storage and…” Source: RevenueBase Database · checked Sep 15, 2026
21	Goddie Chemicals International LTD	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 15, 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 15, 2026
22	Dovewell Oilfield Services Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	11-50	38 contacts →
	Strong evidence “Dovewell Oilfield Services Limited is a fully Nigerian owned oil and gas service company.” Source: RevenueBase Database · checked Sep 15, 2026
23	Zamam Offshore Services Limited	Strong evidence	Lekki Phase 1, NigeriaHQ checked Sep 15, 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 15, 2026
24	TAG Energy Limited	Strong evidence	Lekki, NigeriaHQ checked Sep 15, 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 15, 2026
25	Forte Upstream Services Limited	Strong evidence	Lekki Phase 1, NigeriaHQ checked Sep 15, 2026	201-500	29 contacts →
	Strong evidence “Indigenous oilfield chemicals & engineering service provider across the upstream value chain.” Source: RevenueBase Database · checked Sep 15, 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: oilfield service 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 oilfield service companies.
Partial evidence: Its own public description names part of oilfield service companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oilfield service 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 370 oilfield service companies based in Nigeria

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Oilfield service companies based in Nigeria at a glance

As of Sep 15, 2026

11.9%Verified-email coverage

16.6Average contacts per company

11-50Median size (employees)

34.1%Largest-city concentration · Port Harcourt

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

11-50

168

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 370 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 oilfield service 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 Nigeria whose own description of what they do matches “oilfield service 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 oilfield service 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 oilfield service companies, 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, 730 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 15, 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.

Oilfield service companies by metro

Oilfield service companies in Port Harcourt126
Oilfield service companies in Lagos62
Oilfield service companies in Rivers27

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 oilfield service 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 oilfield service companies are there based in Nigeria?

RevenueBase identified 370 oilfield service companies 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 oilfield service companies?

Port Harcourt leads with 126 headquartered companies, followed by Lagos (62) and Rivers (27).

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 730 verified decision-maker contacts tracked across these 370 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 15, 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.