Company lists · Data refreshed September 2026

Top 25 Oilfield security services based in Nigeria

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 139 companies tracked

RevenueBase identified 139 oilfield security services headquartered in Nigeria as of September 2026 and tracks 3,024 professional contacts across them, including 514 with verified work emails. Port Harcourt is the largest hub.

This list covers oilfield security 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 29, 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 29, 2026 86% judged on-target in blind review

139Companies

3,024Contacts tracked

514Verified emails

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The 25 largest oilfield security services based in Nigeria

Ranked by team size

Top 25 of 139 oilfield security services based in Nigeria, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to oilfield security 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	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 29, 2026	1,001-5,000	481 contacts →
	Partial evidence “AOS Orwell Limited is the largest indigenous Oilfield Services Company in Nigeria.” Source: RevenueBase Database · checked Sep 29, 2026
2	Marine Platforms Limited	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 29, 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 29, 2026
3	Ocean Marine Solutions LTD	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 29, 2026	201-500	196 contacts →
	Partial evidence “Ocean Marine Solutions Ltd is a strategically positioned organization operating the marine industry to provide solutions to high-risks security concerns in Nigerian waters.” Source: RevenueBase Database · checked Sep 29, 2026
4	Bell OIL & GAS	Indirect evidence	Lagos, NigeriaHQ checked Sep 29, 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 29, 2026
5	Emval Nigeria Limited	Indirect evidence	Lekki, NigeriaHQ checked Sep 29, 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 29, 2026
6	Peso Energy Services	Indirect evidence	Lekki Phase 1, NigeriaHQ checked Sep 29, 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 29, 2026
7	Cardinal Security Services LTD	Partial evidence	Lekki-ajah, NigeriaHQ checked Sep 29, 2026	1,001-5,000	56 contacts →
	Partial evidence “Cardinal Security Services Limited is passionate about providing efficient and affordable security solutions that exceed customers’ expectations.” Source: RevenueBase Database · checked Sep 29, 2026
8	Cakasa Maintenance Services Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 29, 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 29, 2026
9	OIL Quest International Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 29, 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 29, 2026
10	NEW Energy Services Company Limited	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 29, 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 29, 2026
11	Zamam Offshore Services Limited	Partial evidence	Lekki Phase 1, NigeriaHQ checked Sep 29, 2026	51-200	36 contacts →
	Partial 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 29, 2026
12	TAG Energy Limited	Partial evidence	Lekki, NigeriaHQ checked Sep 29, 2026	11-50	33 contacts →
	Partial 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 29, 2026
13	First Priority Resources International Limited	Indirect evidence	Lekki, NigeriaHQ checked Sep 29, 2026	51-200	26 contacts →
	Indirect 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 29, 2026
14	Omasup Energy Services Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 29, 2026	11-50	24 contacts →
	Indirect evidence “Oil & Gas Services company” Source: RevenueBase Database · checked Sep 29, 2026
15	Matpatson Petroleum Services Limited	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 29, 2026	201-500	22 contacts →
	Partial evidence “Matpatson Petroleum Services is your One-Stop-Shop for Oilfield Services and Solutions with Qualified Manpower and Expertise” Source: RevenueBase Database · checked Sep 29, 2026
16	Bicens Resources Limited	Indirect evidence	Warri, NigeriaHQ checked Sep 29, 2026	501-1,000	22 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 29, 2026
17	LASIS	Partial evidence	Surulere, NigeriaHQ checked Sep 29, 2026	201-500	17 contacts →
	Partial evidence “LASIS is a licensed organization of private security professionals that provides innovative and industry leading protective services.” Source: RevenueBase Database · checked Sep 29, 2026
18	Doric Maritime Services Nigeria	Indirect evidence	Lagos, NigeriaHQ checked Sep 29, 2026	11-50	16 contacts →
	Indirect evidence “Doric Maritime Services Nigeria Ltd (DMSN), is an established private maritime logistics support company incorporated with the CAC of Nigeria in 2016.” Source: RevenueBase Database · checked Sep 29, 2026
19	Supanova Energy Services Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 29, 2026	1-10	11 contacts →
	Indirect evidence “Supanova Energy Services Limited (SES) provides an integrated field services, for both upstream and downstream sector of the energy industry.” Source: RevenueBase Database · checked Sep 29, 2026
20	CD Princeton	Indirect evidence	Port-harcourt, NigeriaHQ checked Sep 29, 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 29, 2026
21	Ramec Integrated Services Limited Risl A Subsidiary Of Ramec Group	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 29, 2026	51-200	10 contacts →
	Indirect 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 29, 2026
22	Masije OIL & Integrated Services LTD	Indirect evidence	Port-harcourt, NigeriaHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “Masije Oil & Integrated Services is the largest indigenous Well intervention Services provider in Nigeria.” Source: RevenueBase Database · checked Sep 29, 2026
23	Greenswiift Investment Nigeria LTD	Partial evidence	Lekki, NigeriaHQ checked Sep 29, 2026	11-50	8 contacts →
	Partial evidence “Greenswiift Investment Nigeria Limited is an indigenous maritime and logistic company with expertise in the provision of cost effective and dependable maritime security services…” Source: RevenueBase Database · checked Sep 29, 2026
24	Hyprops Nigeria Limited	Partial evidence	Lagos, NigeriaHQ checked Sep 29, 2026	201-500	6 contacts →
	Partial evidence “Hyprops Nigeria Limited is a fully-owned Nigerian company which has provided oilfield support services to the oil and gas industry in Nigeria since 1997.” Source: RevenueBase Database · checked Sep 29, 2026
25	Zane Energy LTD	Partial evidence	Victoria Island, NigeriaHQ checked Sep 29, 2026	51-200	6 contacts →
	Partial evidence “Zane Energy is a leading player in the Oil and Gas downstream, offering a wide range of services in: Downstream segment of petroleum products Pipeline Security Surveillance…” Source: RevenueBase Database · checked Sep 29, 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 security 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 oilfield security services.
Partial evidence: Its own public description names part of oilfield security services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oilfield security 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 139 oilfield security services based in Nigeria

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Oilfield security services based in Nigeria at a glance

As of Sep 29, 2026

17.0%Verified-email coverage

21.8Average contacts per company

51-200Median size (employees)

33.1%Largest-city concentration · Port Harcourt

Sep 29, 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 139 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 security 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 “oilfield security 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 oilfield security 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 oilfield security 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, 514 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 29, 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 oilfield security 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 oilfield security services are there based in Nigeria?

RevenueBase identified 139 oilfield security 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 oilfield security services?

Port Harcourt leads with 46 headquartered companies, followed by Lagos (24) and Lagos State (7).

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 514 verified decision-maker contacts tracked across these 139 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 29, 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.