Company lists · Data refreshed September 2026

Top 25 Oil and gas well equipment installation companies based in Nigeria

Name: Oil and gas well equipment installation 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 241 companies tracked

RevenueBase identified 241 oil and gas well equipment installation companies headquartered in Nigeria as of September 2026 and tracks 3,465 professional contacts across them, including 390 with verified work emails. Port Harcourt is the largest hub.

This list covers oil and gas well equipment installation 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

241Companies

3,465Contacts tracked

390Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest oil and gas well equipment installation companies based in Nigeria

Ranked by team size

Top 25 of 241 oil and gas well equipment installation 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 oil and gas well equipment installation 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	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 15, 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 15, 2026
2	Bell OIL & GAS	Strong evidence	Lagos, NigeriaHQ checked Sep 15, 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 15, 2026
3	Prime Sources Limited	Indirect evidence	Lekki, NigeriaHQ checked Sep 15, 2026	201-500	119 contacts →
	Indirect evidence “Prime Sources Limited a Nigerian company established in 2001 as an EPIC company has kept the flag of quality services flying high and is a one stop shop company safely offering…” Source: RevenueBase Database · checked Sep 15, 2026
4	Emval Nigeria Limited	Strong evidence	Lekki, NigeriaHQ checked Sep 15, 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 15, 2026
5	Aviam Offshore Engineering Company Limited	Partial evidence	Lagos, NigeriaHQ checked Sep 15, 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 15, 2026
6	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
7	Pegis Global Services Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 15, 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 15, 2026
8	Cakasa Maintenance Services Limited	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 15, 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 15, 2026
9	OIL Quest International Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 15, 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 15, 2026
10	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
11	True-Blue Energy Services Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 15, 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 15, 2026
12	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
13	Debyl Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	11-50	32 contacts →
	Indirect evidence “DEBYL LIMITED is an indigenous company.” Source: RevenueBase Database · checked Sep 15, 2026
14	Waal Energy Services Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 15, 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 15, 2026
15	Omasup Energy Services Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	11-50	24 contacts →
	Strong evidence “Oil & Gas Services company” Source: RevenueBase Database · checked Sep 15, 2026
16	Stelog Energy Group	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	11-50	23 contacts →
	Strong 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 15, 2026
17	Matpatson Petroleum Services Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	201-500	22 contacts →
	Indirect evidence “Matpatson Petroleum Services is your One-Stop-Shop for Oilfield Services and Solutions with Qualified Manpower and Expertise” Source: RevenueBase Database · checked Sep 15, 2026
18	Bicens Resources Limited	Strong evidence	Warri, NigeriaHQ checked Sep 15, 2026	501-1,000	22 contacts →
	Strong 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 15, 2026
19	Quest OIL And Engineering Services Limited	Strong evidence	Lagos, NigeriaHQ checked Sep 15, 2026	11-50	21 contacts →
	Strong 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 15, 2026
20	Nymagx Energy Services Limited	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	51-200	20 contacts →
	Partial evidence “Nymagx Energy Services a wholly Nigerian owned company incorporated to provide innovative solutions for Well Services, Process, Pipeline Construction, Facilities…” Source: RevenueBase Database · checked Sep 15, 2026
21	Twab Nigeria Limited	Strong evidence	Sagamu Inter-change Kajola Village, NigeriaHQ checked Sep 15, 2026	201-500	18 contacts →
	Strong evidence “TWAB Nigeria Limited is an indigenous Oil and Gas Engineering / Construction (Pipeline & Facilities) service company.” Source: RevenueBase Database · checked Sep 15, 2026
22	Atma Global Resources Limited	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	11-50	17 contacts →
	Partial evidence “Atma Global Resources Limited is a wholly Nigerian Engineering Procurement, Installation, Maintenance, and Commissioning Company created for the purpose of providing services to…” Source: RevenueBase Database · checked Sep 15, 2026
23	Seflam SGL	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 15, 2026	201-500	16 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
24	B G Technical Limited	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	51-200	14 contacts →
	Partial evidence “B.G.Technical Limited (BGT) is an Oil Services company incorporated in 1988.” Source: RevenueBase Database · checked Sep 15, 2026
25	Aftrac Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 15, 2026	11-50	14 contacts →
	Strong evidence “AFTRAC Limited has over 20 years of experience in delivering Oil and Gas related products and services.” 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: oil and gas well equipment installation 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 oil and gas well equipment installation companies.
Partial evidence: Its own public description names part of oil and gas well equipment installation companies, 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 equipment installation 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 241 oil and gas well equipment installation companies based in Nigeria

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 390 reachable decision-makers.

Free signup · no credit card

View the full list →

Oil and gas well equipment installation companies based in Nigeria at a glance

As of Sep 15, 2026

11.3%Verified-email coverage

14.4Average contacts per company

11-50Median size (employees)

36.1%Largest-city concentration · Port Harcourt

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

11-50

109

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 241 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 equipment installation 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 “oil and gas well equipment installation 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 oil and gas well equipment installation 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 oil and gas well equipment installation 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, 390 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.

Oil and gas well equipment installation companies by metro

Oil and gas well equipment installation companies in Port Harcourt87
Oil and gas well equipment installation companies in Lagos37

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 equipment installation 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 oil and gas well equipment installation companies are there based in Nigeria?

RevenueBase identified 241 oil and gas well equipment installation 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 oil and gas well equipment installation companies?

Port Harcourt leads with 87 headquartered companies, followed by Lagos (37) and Rivers (17).

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 390 verified decision-maker contacts tracked across these 241 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.

Ready to reach these companies? Verified emails and direct dials for all 241 oil and gas well equipment installation companies based in Nigeria. Start with a free account, no credit card.

Download this list →

Related lists

Oil and gas well equipment installation companies by geography

Browse the directory

Browse: Companies home · All Nigeria lists · All Oil and gas well equipment installation companies lists · New lists

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.