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.
The 13 largest oil terminal construction companies based in Port Harcourt, Nigeria
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 481 contacts → | ||||
Indirect evidence “AOS Orwell Limited is the largest indigenous Oilfield Services Company in Nigeria.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 2 | 86 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 66 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 4 | 55 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 40 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 38 contacts → | ||||
Partial evidence “Dovewell Oilfield Services Limited is a fully Nigerian owned oil and gas service company.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 7 | 20 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 20 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 9 | 11 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 10 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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 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, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 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, 2026Thanks. The Data Team will review it. | |||||
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 terminal construction companies. 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 terminal construction companies.
- Partial evidence
- Its own public description names part of oil terminal construction companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name oil terminal construction companies. 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 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, 2026Companies by employee count
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
- Oil terminal construction companies in Port Harcourt127
- Oil terminal construction companies in Lagos56
- Oil terminal construction companies in Lagos State31
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.
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