Company lists · Data refreshed September 2026

Top 13 Oil terminal construction companies based in Port Harcourt, Nigeria

RevenueBase identified 127 oil terminal construction companies headquartered in Port Harcourt, Nigeria as of September 2026 and tracks 1,900 professional contacts across them, including 150 with verified work emails. Port Harcourt is the largest hub.

This list covers oil terminal construction companies headquartered in Port Harcourt, 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
127Companies
1,900Contacts tracked
150Verified emails
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The 13 largest oil terminal construction companies based in Port Harcourt, Nigeria

Ranked by team size
Top 13 of 127 oil terminal construction companies based in Port Harcourt, Nigeria, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to oil terminal construction companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidencePort Harcourt, NigeriaHQ checked Sep 17, 20261,001-5,000481 contacts →

Indirect evidence

“AOS Orwell Limited is the largest indigenous Oilfield Services Company in Nigeria.”

Source: RevenueBase Database · checked Sep 17, 2026
2Partial evidencePort Harcourt, NigeriaHQ checked Sep 17, 202651-20086 contacts →

Partial 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
3Indirect evidencePort Harcourt, NigeriaHQ checked Sep 17, 2026201-50066 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
4Partial evidencePort Harcourt, NigeriaHQ checked Sep 17, 2026201-50055 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
5Partial evidencePort Harcourt, NigeriaHQ checked Sep 17, 202651-20040 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidencePort Harcourt, NigeriaHQ checked Sep 17, 202611-5038 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
7Partial evidencePort Harcourt, NigeriaHQ checked Sep 17, 202651-20020 contacts →

Partial evidence

“Nymagx Energy Services a wholly Nigerian owned company incorporated to provide innovative solutions for Well Services, Process, Pipeline Construction, Facilities…”

Source: RevenueBase Database · checked Sep 17, 2026
8Indirect evidencePort Harcourt, NigeriaHQ checked Sep 17, 202611-5020 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidencePort Harcourt, NigeriaHQ checked Sep 17, 202611-5011 contacts →

Indirect evidence

“Regency International Ltd is a 100% indigenous Nigerian private company with a vision to becoming a world-class company.”

Source: RevenueBase Database · checked Sep 17, 2026
10Indirect evidencePort Harcourt, NigeriaHQ checked Sep 17, 202651-20010 contacts →

Indirect evidence

“RAMEC Integrated Services Limited (RISL) is a subsidiary of the RAMEC GROUP, a wholly indigenous Nigerian company, offering services in Directional Drilling, Measurement While…”

Source: RevenueBase Database · checked Sep 17, 2026
11Partial evidencePort Harcourt, NigeriaHQ checked Sep 17, 202611-506 contacts →

Partial evidence

“Bonnedo Engineering and General Services Ltd is an indigenous oil servicing Nigerian firm permitted by Department of Petroleum Resources(DPR) and prequalified by Nigeria Petroleum…”

Source: RevenueBase Database · checked Sep 17, 2026
12Indirect evidencePort Harcourt, NigeriaHQ checked Sep 17, 20261-106 contacts →

Indirect evidence

“HOW WE WORK Encapsulate Nigeria Limited is a Nigerian company, established under the Company Law of the Federal republic of Nigeria, Our vision is to maximize shareholders’ value…”

Source: RevenueBase Database · checked Sep 17, 2026
13Partial evidencePort Harcourt, NigeriaHQ checked Sep 17, 202651-2005 contacts →

Partial evidence

“With nearly a decade of operations, MJD Oilfield Services Limited has become a unique provider of solutions to the Nigerian oil and gas industry with dynamic expertise in…”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 13 of 127 oil terminal construction companies based in Port Harcourt, Nigeria

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Oil terminal construction companies based in Port Harcourt, Nigeria at a glance

As of Sep 17, 2026
7.9%Verified-email coverage
15.0Average contacts per company
11-50Median size (employees)
100.0%Largest-city concentration · Port Harcourt
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
43
51-200
39
201-500
12
501-1,000
1
1,001-5,000
2

Email recency for this list is measured across the whole Nigeria list rather than for Port Harcourt, so it is reported there. Company counts and contact totals on this page are exact for Port Harcourt, over 127 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 terminal construction companies, 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 Port Harcourt, Nigeria whose own description of what they do matches “oil terminal construction companies”. 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 terminal construction companies), 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 terminal construction companies, and records with no verified work email. Companies headquartered outside Port Harcourt 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, 150 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 terminal construction companies by metro in Nigeria

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 terminal construction companies, 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 terminal construction companies are there based in Port Harcourt, Nigeria?

RevenueBase identified 127 oil terminal construction companies headquartered in Port Harcourt, 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?

AOS Orwell Limited, headquartered in Port Harcourt, tops this list with the largest team on record.

Which city has the most oil terminal construction companies?

Port Harcourt leads with 127 headquartered companies, followed by Lagos (56) and Lagos State (31).

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 150 verified decision-maker contacts tracked across these 127 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.