Company lists · Data refreshed November 2026

Top 25 Refinery engineering companies based in Nigeria

RevenueBase identified 567 company matches for refinery engineering companies associated with Nigeria as of November 2026 and tracks 7,851 professional contacts across them, including 1,009 with verified work emails. Lagos is the largest hub.

This list covers company matches for refinery engineering companies 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 November 6, 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 Nov 6, 2026 How this list was built
567Companies
7,851Contacts tracked
1,009Verified emails
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The 25 largest refinery engineering companies based in Nigeria

Ranked by team size
Top 25 of 567 company matches for refinery engineering companies based in Nigeria, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchPort Harcourt, NigeriaHQ recorded Nov 6, 2026501-1,000447 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPort Harcourt, NigeriaHQ recorded Nov 6, 2026501-1,000320 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLagos, NigeriaHQ recorded Nov 6, 2026201-500267 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAbuja, NigeriaHQ recorded Nov 6, 2026201-500247 contacts →

Exact match

“With an eye for customer Satisfaction, we uphold a watch word to ".do it well." in any project we work on.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPort Harcourt, NigeriaHQ recorded Nov 6, 202611-50143 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLagos, NigeriaHQ recorded Nov 6, 202651-200130 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchIkoyi, NigeriaHQ recorded Nov 6, 2026501-1,000127 contacts →

Exact match

“Lee Engineering and Construction Co.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLagos, NigeriaHQ recorded Nov 6, 2026201-500112 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPort Harcourt, NigeriaHQ recorded Nov 6, 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLagos, NigeriaHQ recorded Nov 6, 202651-20091 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchPort-harcourt, NigeriaHQ recorded Nov 6, 2026201-50076 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLagos, NigeriaHQ recorded Nov 6, 2026501-1,00074 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 · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLagos, NigeriaHQ recorded Nov 6, 202651-20072 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchPort Harcourt, NigeriaHQ recorded Nov 6, 2026201-50070 contacts →

Exact match

“FRAZIMEX ENGINEERING LIMITED, a member of Oilserv group was incorporated in 2005 under the laws of the Federal republic of Nigeria as a private limited liability company that…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchPort Harcourt, NigeriaHQ recorded Nov 6, 202651-20066 contacts →

Exact match

“POINT ENGINEERING was established in 1995, started business in 1997 and active operations in January with a dedicated team of mechanical, process, civil/structural…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPort Harcourt, NigeriaHQ recorded Nov 6, 202611-5058 contacts →

Exact match

“Weltek Limited is a Nigerian engineering and energy-services company established in 1986.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchPort - Harcourt, NigeriaHQ recorded Nov 6, 2026201-50055 contacts →

Exact match

“Incorporated in 2004, Ashbard Energy Company Limited is an indigenous engineering services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLagos, NigeriaHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“Design Union is involved in various sectors, including infrastructure, real estate, educational institutions, corporate buildings, oil and gas, and residential.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPort Harcourt, NigeriaHQ recorded Nov 6, 2026201-50052 contacts →

Exact match

“BRIDGSITE NIGERIA LIMITED (BNL) is an indigenous Engineering and Construction Services Company engaged in the provision of solution oriented, cost effective and responsive high…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchVictoria Island, NigeriaHQ recorded Nov 6, 202611-5051 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 · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLagos, NigeriaHQ recorded Nov 6, 2026201-50048 contacts →

Exact match

“DeltaTek Offshore Ltd is a leading Engineering, Procurement, Installation, Construction, and Commissioning (EPICC) service provider in the oil and gas sector of Sub-Sahara Africa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchIlupeju, NigeriaHQ recorded Nov 6, 202611-5043 contacts →

Exact match

“Pacegate Energy & Resources Limited (PEARL) established in 2020 is a leading indigenous provider of fluids and chemical solutions catering to the oil and gas, refineries…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchIkeja, NigeriaHQ recorded Nov 6, 202611-5039 contacts →

Exact match

“TOMSEY Engineering & Services International Ltd is a trusted provider of Engineering, Procurement, and Construction (EPC) services to Nigeria’s Oil & Gas, Power, Petrochemical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLagos, NigeriaHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“Geoscape Limited is a certified Oil and gas engineering services company in Nigeria with many years of experience and knowledge of international standards, technological and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchPort Harcourt, NigeriaHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“Dovewell Oilfield Services Limited is a fully Nigerian owned oil and gas service company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 567 refinery engineering companies based in Nigeria

See the full list, filter by size, metro and specialty, and access 1,009 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Refinery engineering companies based in Nigeria at a glance

As of Nov 6, 2026
12.9%Verified-email coverage
13.8Average contacts per company
11-50Median size (employees)
20.8%Largest-city concentration · Lagos
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
120
11-50
267
51-200
109
201-500
48
501-1,000
15
1,001-5,000
3
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 567 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 “refinery engineering companies” 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 1,009 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 November 6, 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 “refinery engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many refinery engineering companies are there based in Nigeria?

RevenueBase identified 567 company matches for refinery engineering companies associated with Nigeria as of November 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?

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

Which city has the most refinery engineering companies?

Lagos leads with 118 company records, followed by Port Harcourt (115) and Lagos State (42).

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 1,009 professional contacts with verified work emails tracked across these 567 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 November 6, 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.