Company lists · Data refreshed September 2026

Top 25 Oil and gas infrastructure contractors based in Nigeria

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 687 companies tracked

RevenueBase identified 687 oil and gas infrastructure contractors headquartered in Nigeria as of September 2026 and tracks 11,720 professional contacts across them, including 1,593 with verified work emails. Port Harcourt is the largest hub.

This list covers oil and gas infrastructure contractors 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

687Companies

11,720Contacts tracked

1,593Verified emails

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The 25 largest oil and gas infrastructure contractors based in Nigeria

Ranked by team size

Top 25 of 687 oil and gas infrastructure contractors 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 infrastructure contractors: 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	Nestoil Limited	Strong evidence	Victoria Island, NigeriaHQ checked Sep 17, 2026	1,001-5,000	700 contacts →
	Strong evidence “Nestoil is Nigeria’s largest indigenous Engineering, Procurement, Construction and Commissioning (EPCC) Company in the Oil and Gas sector and has been a significant contributor to…” Source: RevenueBase Database · checked Sep 17, 2026
2	Oilserv Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	501-1,000	552 contacts →
	Strong evidence “Oilserv Limited is an Oil & Gas EPCIC (Pipeline & Facilities) Company incorporated in 1992 and commenced business in 1995 with the mission to provide Engineering, Procurement…” Source: RevenueBase Database · checked Sep 17, 2026
3	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
4	Aveon Offshore Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	501-1,000	394 contacts →
	Strong evidence “Aveon Offshore Limited is an engineering and fabrication services company that has been providing construction and general fabrication services for the oil and gas industry since…” Source: RevenueBase Database · checked Sep 17, 2026
5	Pivot-Gis Limited	Strong evidence	Lagos, NigeriaHQ checked Sep 17, 2026	201-500	264 contacts →
	Strong evidence “PIVOT-GIS is a leading Nigerian Engineering, Procurement, Construction, Operations & Maintenance (EPCOM) company serving the oil, gas, and energy sectors since 2004.” Source: RevenueBase Database · checked Sep 17, 2026
6	Ariosh	Strong evidence	Lagos, NigeriaHQ checked Sep 17, 2026	201-500	243 contacts →
	Strong evidence “Ariosh delivers engineering and construction services in the onshore, offshore and subsea segment of the oil and gas sector in Nigeria, West Africa.” Source: RevenueBase Database · checked Sep 17, 2026
7	Seflam SGL	Strong evidence	Victoria Island, NigeriaHQ checked Sep 17, 2026	201-500	220 contacts →
	Strong evidence “A foremost provider of Engineering, Procurement, Construction, & Installation Services to the Nigerian Oil and Gas Industry.” Source: RevenueBase Database · checked Sep 17, 2026
8	Makon Group	Strong evidence	Lekki, NigeriaHQ checked Sep 17, 2026	501-1,000	192 contacts →
	Strong evidence “Makon Group is an international organisation with its business interests spanning Engineering, Procurement, Construction, Operation and Maintenance (EPICOM) for Oil and Gas…” Source: RevenueBase Database · checked Sep 17, 2026
9	Westfield Energy Resources Limited	Strong evidence	Lekki, NigeriaHQ checked Sep 17, 2026	51-200	164 contacts →
	Strong evidence “We are a leading integrated energy services and solutions provider operating across the entire upstream Oil & Gas, Power and Infrastructure value chain in West Africa.” Source: RevenueBase Database · checked Sep 17, 2026
10	Ponticelli Nigeria	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	501-1,000	151 contacts →
	Partial 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 17, 2026
11	TSL Logistics Limited	Strong evidence	Lekki, NigeriaHQ checked Sep 17, 2026	51-200	148 contacts →
	Strong evidence “TSL Logistics Limited is an oil and gas logistics innovations company with development, operations and management capabilities.” Source: RevenueBase Database · checked Sep 17, 2026
12	Kohasa Engineering Company Limited	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	11-50	139 contacts →
	Partial evidence “Kohasa Engineering Company Limited is an oil and energy company based out of Plot 474, Trans Amadi industrial layout, Port Harcourt, RIVERS, Nigeria.” Source: RevenueBase Database · checked Sep 17, 2026
13	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
14	Morpol Engineering Services	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 17, 2026	501-1,000	127 contacts →
	Indirect evidence “Morpol Engineering Services Ltd.” Source: RevenueBase Database · checked Sep 17, 2026
15	Techno OIL Limited	Strong evidence	Victoria Island Annexe, NigeriaHQ checked Sep 17, 2026	201-500	121 contacts →
	Strong evidence “Techno oil is a privately held, wholly indigenous company which today holds a diverse portfolio of prime investment in oil and gas, energy, infrastructure and manufacturing.” Source: RevenueBase Database · checked Sep 17, 2026
16	Prime Sources Limited	Indirect evidence	Lekki, NigeriaHQ checked Sep 17, 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 17, 2026
17	Jimcol Resources Nigeria Limited	Indirect evidence	Portharcourt, NigeriaHQ checked Sep 17, 2026	51-200	119 contacts →
	Indirect evidence “Jimcol Resources Nigeria Limited is an indigenous company incorporated in 1990.” Source: RevenueBase Database · checked Sep 17, 2026
18	LEE Engineering And Construction Company LTD	Indirect evidence	Ikoyi, NigeriaHQ checked Sep 17, 2026	501-1,000	114 contacts →
	Indirect evidence “Lee Engineering and Construction Co.” Source: RevenueBase Database · checked Sep 17, 2026
19	DBN Energies	Indirect evidence	Lagos, NigeriaHQ checked Sep 17, 2026	201-500	104 contacts →
	Indirect evidence “DBN’s core competencies include a vast range of engineering and construction capabilities that cater to the diverse needs of its projects and clients in Nigeria and globally.” Source: RevenueBase Database · checked Sep 17, 2026
20	Nivafer Engineering And Construction Limited	Strong evidence	Oke-shasha, NigeriaHQ checked Sep 17, 2026	201-500	94 contacts →
	Strong evidence “NIVAFER Engineering & Construction Limited is a steel fabrication and erection outfit offering unparalleled engineering & construction services to the Oil and Gas industry…” Source: RevenueBase Database · checked Sep 17, 2026
21	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
22	Rosetti Pivot LTD	Strong evidence	Lagos, NigeriaHQ checked Sep 17, 2026	51-200	84 contacts →
	Strong evidence “Rosetti Pivot Limited provides an array of engineering, procurement, and construction services to the oil & gas sectors within Nigeria and the Sub-Saharan Africa region, using…” Source: RevenueBase Database · checked Sep 17, 2026
23	Natony Limited	Indirect evidence	Warri, NigeriaHQ checked Sep 17, 2026	51-200	75 contacts →
	Indirect evidence “NATONY LIMITED RC.105963 is a Nigerian Contracting Company Engaged in Civil, Mechanical Fabrications and Installation, Electrical and Instrumentation, Diving / Remote Operated…” Source: RevenueBase Database · checked Sep 17, 2026
24	Aviam Offshore Engineering Company Limited	Indirect evidence	Lagos, NigeriaHQ checked Sep 17, 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 17, 2026
25	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

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 infrastructure contractors. 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 infrastructure contractors.
Partial evidence: Its own public description names part of oil and gas infrastructure contractors, 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 infrastructure contractors. 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 687 oil and gas infrastructure contractors based in Nigeria

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Oil and gas infrastructure contractors based in Nigeria at a glance

As of Sep 17, 2026

13.6%Verified-email coverage

17.1Average contacts per company

11-50Median size (employees)

30.4%Largest-city concentration · Port Harcourt

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

134

11-50

294

51-200

158

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 687 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 infrastructure contractors, 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 infrastructure contractors”. 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 infrastructure contractors), 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 infrastructure contractors, 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, 1,593 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 infrastructure contractors by metro

Oil and gas infrastructure contractors in Port Harcourt209
Oil and gas infrastructure contractors in Lagos120
Oil and gas infrastructure contractors in Lagos State45
Oil and gas infrastructure contractors in Rivers39

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 infrastructure contractors, 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 infrastructure contractors are there based in Nigeria?

RevenueBase identified 687 oil and gas infrastructure contractors 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?

Nestoil Limited, headquartered in Victoria Island Lagos, tops this list with the largest team on record.

Which city has the most oil and gas infrastructure contractors?

Port Harcourt leads with 209 headquartered companies, followed by Lagos (120) and Lagos State (45).

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 1,593 verified decision-maker contacts tracked across these 687 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.