Company lists · Data refreshed September 2026

Top 25 Oil and gas inspection services based in Nigeria

Name: Oil and gas inspection 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 352 companies tracked

RevenueBase identified 352 company matches for oil and gas inspection services associated with Nigeria as of September 2026 and tracks 4,819 professional contacts across them, including 333 with verified work emails. Port Harcourt is the largest hub.

This list covers company matches for oil and gas inspection services associated with Nigeria, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

352Companies

4,819Contacts tracked

333Verified emails

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The 25 largest oil and gas inspection services based in Nigeria

Ranked by team size

Top 25 of 352 company matches for oil and gas inspection services based in Nigeria, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	JC International	Exact match	Port Harcourt, NigeriaHQ recorded Sep 17, 2026	51-200	228 contacts →
	Exact match “JC International is an ISO 9001:2015 certified company that provides Inspection, Training and Rope Access services to the Oil and Gas, Marine and Construction Industry throughout…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Engineering Automation Technology Limited	Exact match	Eket, NigeriaHQ recorded Sep 17, 2026	201-500	177 contacts →
	Exact match “Engineering Automation Technology Limited is an indigenous Technological Engineering Company Incorporated on the 9th of November, 2007 under the laws of the Federal Republic of…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Bell OIL & GAS	Exact match	Lagos, NigeriaHQ recorded Sep 17, 2026	51-200	129 contacts →
	Exact match “Bell Oil & Gas has grown rapidly to become a leading indigenous oil service company in Nigeria.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Jimcol Resources Nigeria Limited	Exact match	Portharcourt, NigeriaHQ recorded Sep 17, 2026	51-200	119 contacts →
	Exact match “Jimcol Resources Nigeria Limited is an indigenous company incorporated in 1990.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Emval Nigeria Limited	Exact match	Lekki, NigeriaHQ recorded Sep 17, 2026	51-200	109 contacts →
	Exact match “The Company Emval Nigeria Limited is a servicing company that provides onshore and offshore technical services to the Oil & Gas industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	PFL Engineering Services Limited	Exact match	Lekki, NigeriaHQ recorded Sep 17, 2026	501-1,000	90 contacts →
	Exact match “PFL Engineering Services Limited (PFL) is an indigenous company established in 2002.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Petrostuff Nigeria Limited	Exact match	Lagos., NigeriaHQ recorded Sep 17, 2026	201-500	75 contacts →
	Exact match “Petrostuff Nigeria Limited is a 100% Nigerian company established in 1998.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Westend Diamond Energy Limited	Exact match	Port Harcourt, NigeriaHQ recorded Sep 17, 2026	201-500	75 contacts →
	Exact match “As a survey assessment, consulting and inspection company, WEDNL conducts itself on the basis of Workability, Efficiency and Dynamism in providing quality assessment and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Aviam Offshore Engineering Company Limited	Exact match	Lagos, NigeriaHQ recorded Sep 17, 2026	201-500	73 contacts →
	Exact match “AOECL provides Drilling & Well completion, Manpower, Procurement, Dredging, Inspection, and EPCI services (Engineering, Procurement, Technical Consultancy, Facility Maintenance…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Elper Oilfield Engineering	Exact match	Lagos, NigeriaHQ recorded Sep 17, 2026	501-1,000	70 contacts →
	Exact match “ELPER has built in time, a strong international network, and a specialized engineering company, providing services ranging from Engineering Procurement & Construction to Marine…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Thompson & Grace Investments Limited	Exact match	Port-harcourt, NigeriaHQ recorded Sep 17, 2026	201-500	67 contacts →
	Exact match “Thompson & Grace Investment Limited (TGIL) an Engineering/ Oilfield Service company in Nigeria provides services to the Engineering Sector/Oil and Gas industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Vagan OIL And GAS Limited	Exact match	Port Harcourt, NigeriaHQ recorded Sep 17, 2026	201-500	66 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Arco Integrity Solutions Limited	Exact match	Port Harcourt, NigeriaHQ recorded Sep 17, 2026	51-200	58 contacts →
	Exact match “Arco Integrity Solutions Limited (AISL) has been in the oil, gas and energy industry since 2003.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Sellafield Energy	Exact match	Lekki, NigeriaHQ recorded Sep 17, 2026	11-50	56 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	PEM Offshore Group	Exact match	Port-harcourt, NigeriaHQ recorded Sep 17, 2026	11-50	52 contacts →
	Exact match “PEM Offshore offers a wide range of products and services aimed at improving safety, quality and reliability in the marine, oil and gas sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	OIL Quest International Limited	Exact match	Port Harcourt, NigeriaHQ recorded Sep 17, 2026	201-500	50 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Ashbard Energy Company Limited	Exact match	Port - Harcourt, NigeriaHQ recorded Sep 17, 2026	201-500	49 contacts →
	Exact match “Incorporated in 2004, Ashbard Energy Company Limited is an indigenous engineering services provider.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	GCA Energy Limited	Exact match	Victoria Island, NigeriaHQ recorded Sep 17, 2026	11-50	46 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	NEW Energy Services Company Limited	Exact match	Victoria Island, NigeriaHQ recorded Sep 17, 2026	51-200	45 contacts →
	Exact match “New Energy Services Company Limited (NESSCO) is a 100% Nigerian owned company incorporated in 2003.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	True-Blue Energy Services Limited	Exact match	Port Harcourt, NigeriaHQ recorded Sep 17, 2026	51-200	40 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Alphaden Energy & Oilfield Limited	Exact match	Victoria Island, NigeriaHQ recorded Sep 17, 2026	51-200	35 contacts →
	Exact match “The ‘ALPHA’S DEN’ is a hub of professional and well experienced Alpha’s, championing their fields while collectively making up a provider of fit-for-purpose services to clients…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	TAG Energy Limited	Exact match	Lekki, NigeriaHQ recorded Sep 17, 2026	11-50	33 contacts →
	Exact match “TAG Energy is an integrated service company offering a comprehensive range of oilfield products and support services in the Nigerian Oil and Gas Industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Funtay Group	Exact match	Lagos, NigeriaHQ recorded Sep 17, 2026	51-200	30 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Deepwater Engineering Limited DEL	Exact match	Warri, NigeriaHQ recorded Sep 17, 2026	11-50	29 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	ENG Rypac Limited	Exact match	Rivers State, NigeriaHQ recorded Sep 17, 2026	51-200	26 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “oil and gas inspection services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 352 oil and gas inspection services based in Nigeria

See the full list, filter by size, metro and specialty, and access 333 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil and gas inspection services based in Nigeria at a glance

As of Sep 17, 2026

6.9%Verified-email coverage

13.7Average contacts per company

11-50Median size (employees)

33.5%Largest-city concentration · Port Harcourt

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

161

51-200

201-500

501-1,000

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 352 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Nigeria whose business descriptions match “oil and gas inspection services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 333 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “oil and gas inspection services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas inspection services are there based in Nigeria?

RevenueBase identified 352 company matches for oil and gas inspection services associated with Nigeria as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

JC International tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most oil and gas inspection services?

Port Harcourt leads with 118 company records, followed by Lagos (60) and Lagos State (23).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 333 professional contacts with verified work emails tracked across these 352 companies; direct dials are available where recorded.

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 SmartSearch, 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.