Company lists · Data refreshed September 2026

Top 25 Oil and gas consulting firms based in Nigeria

Name: Oil and gas consulting firms based in Nigeria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 625 companies tracked

RevenueBase identified 625 oil and gas consulting firms headquartered in Nigeria as of September 2026 and tracks 7,818 professional contacts across them, including 884 with verified work emails. Port Harcourt is the largest hub.

This list covers oil and gas consulting firms headquartered in 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 14, 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 14, 2026 86% judged on-target in blind review

625Companies

7,818Contacts tracked

884Verified emails

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The 25 largest oil and gas consulting firms based in Nigeria

Ranked by team size

Top 25 of 625 oil and gas consulting firms based in Nigeria, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas consulting firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	AOS Orwell Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 14, 2026	1,001-5,000	481 contacts →
	Indirect evidence “AOS Orwell Limited is the largest indigenous Oilfield Services Company in Nigeria.” Source: RevenueBase Database · checked Sep 14, 2026
2	Marine Platforms Limited	Strong evidence	Victoria Island, NigeriaHQ checked Sep 14, 2026	201-500	377 contacts →
	Strong evidence “Marine Platforms is an oil service company focused on providing diverse services to the upstream sector of the oil & gas industry in Nigeria and the African continent sustainably.” Source: RevenueBase Database · checked Sep 14, 2026
3	Prime Atlantic Cegelec Pace	Strong evidence	Lagos, NigeriaHQ checked Sep 14, 2026	51-200	237 contacts →
	Strong evidence “Prime Atlantic Cegelec (PACE) Limited is an indigenous Nigerian company dedicated to effecting development and building capacity in the Nigerian oil and gas industry.” Source: RevenueBase Database · checked Sep 14, 2026
4	Laser Engineering And Resources Consultants Limited	Indirect evidence	Port-harcourt, NigeriaHQ checked Sep 14, 2026	51-200	140 contacts →
	Indirect evidence “Laser Engineering is a Petroleum Engineering Consultancy outfit specializing in surface and subsurface studies including well test services.” Source: RevenueBase Database · checked Sep 14, 2026
5	Bell OIL & GAS	Strong evidence	Lagos, NigeriaHQ checked Sep 14, 2026	51-200	129 contacts →
	Strong evidence “Bell Oil & Gas has grown rapidly to become a leading indigenous oil service company in Nigeria.” Source: RevenueBase Database · checked Sep 14, 2026
6	Jimcol Resources Nigeria Limited	Indirect evidence	Portharcourt, NigeriaHQ checked Sep 14, 2026	51-200	119 contacts →
	Indirect evidence “Jimcol Resources Nigeria Limited is an indigenous company incorporated in 1990.” Source: RevenueBase Database · checked Sep 14, 2026
7	Arion Energy Services Limited	Strong evidence	Lagos, NigeriaHQ checked Sep 14, 2026	51-200	114 contacts →
	Strong evidence “Arion Energy Services is an engineering, projects, and operations service provider to the oil and gas, power and maritime industries.” Source: RevenueBase Database · checked Sep 14, 2026
8	Hydroserve Group	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 14, 2026	51-200	86 contacts →
	Strong 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 14, 2026
9	Aviam Offshore Engineering Company Limited	Indirect evidence	Lagos, NigeriaHQ checked Sep 14, 2026	201-500	73 contacts →
	Indirect evidence “AOECL provides Drilling & Well completion, Manpower, Procurement, Dredging, Inspection, and EPCI services (Engineering, Procurement, Technical Consultancy, Facility Maintenance…” Source: RevenueBase Database · checked Sep 14, 2026
10	Peso Energy Services	Strong evidence	Lekki Phase 1, NigeriaHQ checked Sep 14, 2026	201-500	72 contacts →
	Strong evidence “PESO Energy Services is a leader in the Oil and Gas services industry, specializing in Engineering Services, Early Production Facility Packages, Oil Field Services, Specialized…” Source: RevenueBase Database · checked Sep 14, 2026
11	Bricks Mursten Mattoni LTD	Indirect evidence	Apapa, NigeriaHQ checked Sep 14, 2026	51-200	71 contacts →
	Indirect evidence “BRICKS was established in 2008 with the aim of providing a comprehensive package of services, tailored to our client’s requirements in the chain of sectors.” Source: RevenueBase Database · checked Sep 14, 2026
12	Elper Oilfield Engineering	Indirect evidence	Lagos, NigeriaHQ checked Sep 14, 2026	501-1,000	70 contacts →
	Indirect evidence “ELPER has built in time, a strong international network, and a specialized engineering company, providing services ranging from Engineering Procurement & Construction to Marine…” Source: RevenueBase Database · checked Sep 14, 2026
13	Crestech Engineering Limited, Lagos - Nigeria	Indirect evidence	Lagos, NigeriaHQ checked Sep 14, 2026	51-200	67 contacts →
	Indirect evidence “Crestech is an Engineering Design and Project Management Company with its head office in Victoria Island, Lagos, Nigeria.” Source: RevenueBase Database · checked Sep 14, 2026
14	Thompson & Grace Investments Limited	Strong evidence	Port-harcourt, NigeriaHQ checked Sep 14, 2026	201-500	67 contacts →
	Strong evidence “Thompson & Grace Investment Limited (TGIL) an Engineering/ Oilfield Service company in Nigeria provides services to the Engineering Sector/Oil and Gas industry.” Source: RevenueBase Database · checked Sep 14, 2026
15	Frazimex Engineering Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 14, 2026	201-500	58 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 14, 2026
16	Lington & Bernie Consulting Limited	Strong evidence	Ikoyi, NigeriaHQ checked Sep 14, 2026	1,001-5,000	57 contacts →
	Strong evidence “Lington & Bernie Consulting Limited was established on October 8, to provide efficient and qualitative consulting services to the oil and gas industry as well as banks and…” Source: RevenueBase Database · checked Sep 14, 2026
17	Pegis Global Services Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 14, 2026	11-50	57 contacts →
	Strong evidence “PEGIS GLOBAL Services Limited (PGSL) is a fast growing indigenous company with operational base in Port Harcourt, focused on providing services in the Oil and gas Industry in the…” Source: RevenueBase Database · checked Sep 14, 2026
18	Sellafield Energy	Strong evidence	Lekki, NigeriaHQ checked Sep 14, 2026	11-50	56 contacts →
	Strong evidence “Sellafield Energy is a leading oil and gas support provider that has within a short time, emerged as a reference point in recruitment services and technical manpower support…” Source: RevenueBase Database · checked Sep 14, 2026
19	Cakasa Maintenance Services Limited	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 14, 2026	51-200	52 contacts →
	Partial evidence “Cakasa Maintenance Services Limited is a global oil servicing company in Nigeria, with Head Office in PortHarcourt.” Source: RevenueBase Database · checked Sep 14, 2026
20	OIL Quest International Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 14, 2026	201-500	50 contacts →
	Strong evidence “Oil Quest International Limited (OQIL) is an indigenous Oil and Gas integrated technical support Service Company incorporated in Nigeria as a limited liability company on 11th…” Source: RevenueBase Database · checked Sep 14, 2026
21	Baklang Group	Strong evidence	Victoria Island, NigeriaHQ checked Sep 14, 2026	501-1,000	49 contacts →
	Strong evidence “Incorporated in 1994, Baklang Group has become the reference for quality and professional excellence within the oil and gas services sector in Africa.” Source: RevenueBase Database · checked Sep 14, 2026
22	Field Offshore Design Engineering LTD	Strong evidence	Lagos, NigeriaHQ checked Sep 14, 2026	51-200	48 contacts →
	Strong evidence “Oil and Gas servicing company.” Source: RevenueBase Database · checked Sep 14, 2026
23	GCA Energy Limited	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 14, 2026	11-50	46 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 14, 2026
24	NEW Energy Services Company Limited	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 14, 2026	51-200	45 contacts →
	Indirect evidence “New Energy Services Company Limited (NESSCO) is a 100% Nigerian owned company incorporated in 2003.” Source: RevenueBase Database · checked Sep 14, 2026
25	True-Blue Energy Services Limited	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 14, 2026	51-200	40 contacts →
	Strong 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 14, 2026

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 and gas consulting firms. 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 and gas consulting firms.
Partial evidence: Its own public description names part of oil and gas consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas consulting firms. 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 25 of 625 oil and gas consulting firms based in Nigeria

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Oil and gas consulting firms based in Nigeria at a glance

As of Sep 14, 2026

11.3%Verified-email coverage

12.5Average contacts per company

11-50Median size (employees)

24.8%Largest-city concentration · Port Harcourt

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

135

11-50

305

51-200

130

201-500

501-1,000

1,001-5,000

10001+

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 625 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 and gas consulting firms, 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 Nigeria whose own description of what they do matches “oil and gas consulting firms”. 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 and gas consulting firms), 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 and gas consulting firms, and records with no verified work email. Companies headquartered outside Nigeria 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, 884 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 14, 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 and gas consulting firms by metro

Oil and gas consulting firms in Port Harcourt155
Oil and gas consulting firms in Lagos133
Oil and gas consulting firms in Lagos State40
Oil and gas consulting firms in Rivers25

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 and gas consulting firms, 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 and gas consulting firms are there based in Nigeria?

RevenueBase identified 625 oil and gas consulting firms headquartered in 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 and gas consulting firms?

Port Harcourt leads with 155 headquartered companies, followed by Lagos (133) and Lagos State (40).

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 884 verified decision-maker contacts tracked across these 625 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 14, 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.