Company lists · Data refreshed October 2026

Top 25 Epc contractors for refineries based in Nigeria

RevenueBase identified 570 company matches for epc contractors for refineries associated with Nigeria as of October 2026 and tracks 10,439 professional contacts across them, including 1,527 with verified work emails. Port Harcourt is the largest hub.

This list covers company matches for epc contractors for refineries 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 October 12, 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 Oct 12, 2026 How this list was built
570Companies
10,439Contacts tracked
1,527Verified emails
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The 25 largest epc contractors for refineries based in Nigeria

Ranked by team size
Top 25 of 570 company matches for epc contractors for refineries based in Nigeria, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchVictoria Island, NigeriaHQ recorded Oct 12, 20261,001-5,000705 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2Exact matchPort Harcourt, NigeriaHQ recorded Oct 12, 2026501-1,000547 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3Exact matchPort Harcourt, NigeriaHQ recorded Oct 12, 20261,001-5,000420 contacts →

Exact match

“ALCON Nigeria Limited commenced operation on the 10th day of May 1982 as MED Construction, incorporated with registration no: RC 47042.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4Exact matchLagos, NigeriaHQ recorded Oct 12, 20261,001-5,000337 contacts →

Exact match

“Lambert Electromec Limited is a leading EPC company in Africa, with specialty in Electrical and Mechanical Engineering & Construction.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5Exact matchLagos, NigeriaHQ recorded Oct 12, 2026201-500331 contacts →

Exact match

“CAKASA was incorporated in 1974 to provide Engineering, Procurement & Construction (EPC) Services to the Nigerian Oil and Gas and Industrial Infrastructural clients: A trailblazer…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6Exact matchPort Harcourt, NigeriaHQ recorded Oct 12, 2026501-1,000312 contacts →

Exact match

“Dover Engineering Limited is a reputable Engineering Design,EPC, Operations & Maintenance Company.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7Exact matchLagos, NigeriaHQ recorded Oct 12, 2026201-500252 contacts →

Exact match

“Ariosh delivers engineering and construction services in the onshore, offshore and subsea segment of the oil and gas sector in Nigeria, West Africa.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8Exact matchLagos, NigeriaHQ recorded Oct 12, 2026201-500251 contacts →

Exact match

“PIVOT-GIS is a leading Nigerian Engineering, Procurement, Construction, Operations & Maintenance (EPCOM) company serving the oil, gas, and energy sectors since 2004.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9Exact matchLagos, NigeriaHQ recorded Oct 12, 202651-200244 contacts →

Exact match

“Prime Atlantic Cegelec (PACE) Limited is an indigenous Nigerian company dedicated to effecting development and building capacity in the Nigerian oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10Exact matchVictoria Island, NigeriaHQ recorded Oct 12, 2026201-500224 contacts →

Exact match

“A foremost provider of Engineering, Procurement, Construction, & Installation Services to the Nigerian Oil and Gas Industry.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11Exact matchLekki, NigeriaHQ recorded Oct 12, 2026501-1,000194 contacts →

Exact match

“Makon Group is an international organisation with its business interests spanning Engineering, Procurement, Construction, Operation and Maintenance (EPICOM) for Oil and Gas…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12Exact matchLekki, NigeriaHQ recorded Oct 12, 202651-200180 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13Exact matchLekki, NigeriaHQ recorded Oct 12, 2026201-500131 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14Exact matchPort Harcourt, NigeriaHQ recorded Oct 12, 202611-50128 contacts →

Exact match

“Kohasa Engineering Company Limited is an oil and energy company based out of Plot 474, Trans Amadi industrial layout, Port Harcourt, RIVERS, Nigeria.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15Exact matchLagos, NigeriaHQ recorded Oct 12, 202651-200127 contacts →

Exact match

“Arion Energy Services is an engineering, projects, and operations service provider to the oil and gas, power and maritime industries.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16Exact matchVictoria Island, NigeriaHQ recorded Oct 12, 2026501-1,000126 contacts →

Exact match

“Morpol Engineering Services Ltd.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17Exact matchIkoyi, NigeriaHQ recorded Oct 12, 2026501-1,000117 contacts →

Exact match

“Lee Engineering and Construction Co.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18Exact matchLagos, NigeriaHQ recorded Oct 12, 2026201-500106 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19Exact matchPort Harcourt, NigeriaHQ recorded Oct 12, 202651-200101 contacts →

Exact match

“PE Energy is an Engineering Design, Procurement/Supply Chain, Integration, Installation and Maintenance of process facility Partner.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20Exact matchLagos, NigeriaHQ recorded Oct 12, 202651-20090 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21Exact matchLagos, NigeriaHQ recorded Oct 12, 202611-5078 contacts →

Exact match

“ASB Valiant Company Limited is a leading EPC, MEP and Energy solution company founded in 2007, to deliver quality services to the Oil and Gas, Construction, Marine, Power and…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22Exact matchLagos, NigeriaHQ recorded Oct 12, 2026501-1,00072 contacts →

Exact match

“Founded in 2007, SANA Group is a leading EPC contractor providing construction, engineering, and industrial solutions across Africa.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23Exact matchLagos, NigeriaHQ recorded Oct 12, 2026501-1,00072 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 · Oct 12, 2026 · View company records in RevenueBase
24Exact matchLagos, NigeriaHQ recorded Oct 12, 2026201-50069 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 · Oct 12, 2026 · View company records in RevenueBase
25Exact matchLagos, NigeriaHQ recorded Oct 12, 202651-20067 contacts →

Exact match

“Crestech is an Engineering Design and Project Management Company with its head office in Victoria Island, Lagos, Nigeria.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

Showing 25 of 570 epc contractors for refineries based in Nigeria

See the full list, filter by size, metro and specialty, and access 1,527 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Epc contractors for refineries based in Nigeria at a glance

As of Oct 12, 2026
14.6%Verified-email coverage
18.3Average contacts per company
11-50Median size (employees)
23.7%Largest-city concentration · Port Harcourt
Oct 12, 2026Page data refreshed

Companies by employee count

1-10
109
11-50
254
51-200
109
201-500
68
501-1,000
19
1,001-5,000
8
10001+
2

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 570 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 “epc contractors for refineries” 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 1,527 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 October 12, 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 “epc contractors for refineries”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many epc contractors for refineries are there based in Nigeria?

RevenueBase identified 570 company matches for epc contractors for refineries associated with Nigeria as of October 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?

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

Which city has the most epc contractors for refineries?

Port Harcourt leads with 135 company records, followed by Lagos (113) and Lagos State (54).

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 1,527 professional contacts with verified work emails tracked across these 570 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 October 12, 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.