Company lists · Data refreshed September 2026

Top 25 Hydrocarbon processing plant builders based in Nigeria

RevenueBase identified 274 company matches for hydrocarbon processing plant builders associated with Nigeria as of September 2026 and tracks 5,206 professional contacts across them, including 731 with verified work emails. Port Harcourt is the largest hub.

This list covers company matches for hydrocarbon processing plant builders 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 20, 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 20, 2026 How this list was built
274Companies
5,206Contacts tracked
731Verified emails
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The 25 largest hydrocarbon processing plant builders based in Nigeria

Ranked by team size
Top 25 of 274 company matches for hydrocarbon processing plant builders based in Nigeria, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 Sep 20, 20261,001-5,000700 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 · Sep 20, 2026 · View company records in RevenueBase
2Exact matchPort Harcourt, NigeriaHQ recorded Sep 20, 2026501-1,000315 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchLagos, NigeriaHQ recorded Sep 20, 2026201-500264 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 · Sep 20, 2026 · View company records in RevenueBase
4Exact matchLagos, NigeriaHQ recorded Sep 20, 2026201-500243 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 · Sep 20, 2026 · View company records in RevenueBase
5Exact matchLekki, NigeriaHQ recorded Sep 20, 2026501-1,000192 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 · Sep 20, 2026 · View company records in RevenueBase
6Exact matchPort Harcourt, NigeriaHQ recorded Sep 20, 2026501-1,000151 contacts →

Exact match

“PONTICELLI NIGERIA [PNL] is a subsidiary of PONTICELLI Frères Group, a leading European services supplier to companies in the energy, industrial, and infrastructural sectors.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchPort Harcourt, NigeriaHQ recorded Sep 20, 202611-50139 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 · Sep 20, 2026 · View company records in RevenueBase
8Exact matchIkoyi, NigeriaHQ recorded Sep 20, 2026501-1,000114 contacts →

Exact match

“Lee Engineering and Construction Co.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchLagos, NigeriaHQ recorded Sep 20, 2026201-500104 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 · Sep 20, 2026 · View company records in RevenueBase
10Exact matchPort Harcourt, NigeriaHQ recorded Sep 20, 202651-20086 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchLagos, NigeriaHQ recorded Sep 20, 202651-20084 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 · Sep 20, 2026 · View company records in RevenueBase
12Exact matchLagos, NigeriaHQ recorded Sep 20, 2026501-1,00070 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 20, 2026 · View company records in RevenueBase
13Exact matchLagos, NigeriaHQ recorded Sep 20, 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 · Sep 20, 2026 · View company records in RevenueBase
14Exact matchPort Harcourt, NigeriaHQ recorded Sep 20, 2026201-50058 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 · Sep 20, 2026 · View company records in RevenueBase
15Exact matchPort Harcourt, NigeriaHQ recorded Sep 20, 202651-20055 contacts →

Exact match

“WELTEK Limited is an engineering, procurement and construction company, incorporated in Nigeria in 1986, to provide specialized services to the Oil & Gas, Power Generation…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchPort Harcourt, NigeriaHQ recorded Sep 20, 2026201-50055 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 · Sep 20, 2026 · View company records in RevenueBase
17Exact matchLagos, NigeriaHQ recorded Sep 20, 202651-20048 contacts →

Exact match

“With headquarters in Lagos, Nigeria, NigerStar7 is a company wholly owned by Subsea7.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchOsubi-warri, NigeriaHQ recorded Sep 20, 2026201-50045 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchVictoria Island, NigeriaHQ recorded Sep 20, 202651-20035 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 20, 2026 · View company records in RevenueBase
20Exact matchLagos, NigeriaHQ recorded Sep 20, 202611-5029 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 · Sep 20, 2026 · View company records in RevenueBase
21Exact matchPort Harcourt, NigeriaHQ recorded Sep 20, 202651-20029 contacts →

Exact match

“Registered in 2020 and commenced business operations in October 2022, Waal Energy Services Limited is a full-spectrum technical solutions company focused on delivering end-to-end…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchLekki Phase 1, NigeriaHQ recorded Sep 20, 202651-20027 contacts →

Exact match

“GMUNU is a full-service Engineering Procurement and Construction Company.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchPort Harcourt, NigeriaHQ recorded Sep 20, 202651-20027 contacts →

Exact match

“KURUS NIGERIA LIMITED, fully indigenous but world class, is committed to delivering qualitative, efficient and cost effective Technical solution to the Oil/Gas and energy…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchKaduna, NigeriaHQ recorded Sep 20, 2026201-50025 contacts →

Exact match

“Supasteel Limited is a wholly indigenously owned Engineering Procurement and construction Company carrying out Fabrication, Installation, Repair of Static and Rotating Equipment…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchWarri, NigeriaHQ recorded Sep 20, 2026501-1,00022 contacts →

Exact match

“Bicens Resources Limited is a tech savvy multidisciplinary firm with competencies in the Oil & Gas Industry, Providing and delivering exceptional solutions in DRILLING,OPERATIONS…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 274 hydrocarbon processing plant builders based in Nigeria

See the full list, filter by size, metro and specialty, and access 731 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrocarbon processing plant builders based in Nigeria at a glance

As of Sep 20, 2026
14.0%Verified-email coverage
19.0Average contacts per company
11-50Median size (employees)
27.0%Largest-city concentration · Port Harcourt
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
46
11-50
115
51-200
60
201-500
36
501-1,000
12
1,001-5,000
4

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 274 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 “hydrocarbon processing plant builders” 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 731 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 20, 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 “hydrocarbon processing plant builders”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrocarbon processing plant builders are there based in Nigeria?

RevenueBase identified 274 company matches for hydrocarbon processing plant builders 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?

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

Which city has the most hydrocarbon processing plant builders?

Port Harcourt leads with 74 company records, followed by Lagos (57) and Lagos State (21).

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 731 professional contacts with verified work emails tracked across these 274 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 20, 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.