Company lists · Data refreshed November 2026

Top 9 Oil and gas production consultants based in Port Harcourt, Nigeria

RevenueBase identified 68 company matches for oil and gas production consultants associated with Port Harcourt, Nigeria as of November 2026 and tracks 1,404 professional contacts across them, including 146 with verified work emails. Across Nigeria, Port Harcourt is the largest hub for this category.

This list covers company matches for oil and gas production consultants associated with Port Harcourt, 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 4, 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 4, 2026 How this list was built
68Companies
1,404Contacts tracked
146Verified emails
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The 9 largest oil and gas production consultants based in Port Harcourt, Nigeria

Ranked by team size
Top 9 of 68 company matches for oil and gas production consultants based in Port Harcourt, Nigeria, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 4, 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 4, 202651-200139 contacts →

Exact match

“CypherCrescent is a leading petroleum engineering research, software development and asset management consultancy company, with a global reach.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
2Exact matchPort Harcourt, NigeriaHQ recorded Nov 4, 202651-20032 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 · Nov 4, 2026 · View company records in RevenueBase
3Exact matchPort Harcourt, NigeriaHQ recorded Nov 4, 202651-20021 contacts →

Exact match

“Laser Engineering and Resources Consultants Limited is a Nigerian Indigenous Company that renders services to the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
4Exact matchPort Harcourt, NigeriaHQ recorded Nov 4, 202611-5013 contacts →

Exact match

“Epic Atlantic Limited is an indigeneous multi-disciplinary engineering and technology company formed with a passion for technical and operational excellence for the oil and gas…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
5Exact matchPort Harcourt, NigeriaHQ recorded Nov 4, 202651-2009 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
6Exact matchPort Harcourt, NigeriaHQ recorded Nov 4, 202611-509 contacts →

Exact match

“Bonitas Energy Solutions Limited is a Nigerian indigenous oil and gas servicing company incorporated in 2015 and specializes in Project Management, Quality Management, Consulting…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
7Exact matchPort Harcourt, NigeriaHQ recorded Nov 4, 202651-2006 contacts →

Exact match

“Stephano Integrated Services Limited (STSL), RC 1539784, established April 2018 and registered in Nigeria, November 2018, is a company offering a diversity of services to meet new…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
8Exact matchPort Harcourt, NigeriaHQ recorded Nov 4, 202651-2005 contacts →

Exact match

“Petrodecision is a petroleum technology company helping Oil & Gas businesses turn complex technical data into clear, actionable insights.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
9Exact matchPort Harcourt, NigeriaHQ recorded Nov 4, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase

Showing 9 of 68 oil and gas production consultants based in Port Harcourt, Nigeria

See the full list, filter by size, metro and specialty, and access 146 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil and gas production consultants based in Port Harcourt, Nigeria at a glance

As of Nov 4, 2026
10.4%Verified-email coverage
20.6Average contacts per company
11-50Median size (employees)
Nov 4, 2026Page data refreshed

Companies by employee count

1-10
13
11-50
29
51-200
19
201-500
4
501-1,000
1
1,001-5,000
1
10001+
1

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 68 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 Port Harcourt, Nigeria whose business descriptions match “oil and gas production consultants” 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 146 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 4, 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 “oil and gas production consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas production consultants are there based in Port Harcourt, Nigeria?

RevenueBase identified 68 company matches for oil and gas production consultants associated with Port Harcourt, 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?

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

Which city in Nigeria has the most oil and gas production consultants?

Port Harcourt leads Nigeria with 68 company records, followed by Lagos (42) and Lagos State (18).

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 146 professional contacts with verified work emails tracked across these 68 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 4, 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.