Company lists · Data refreshed September 2026

Top 25 Petrochemical plant builders based in Nigeria

Name: Petrochemical plant builders based in Nigeria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 188 companies tracked

RevenueBase identified 188 petrochemical plant builders headquartered in Nigeria as of September 2026 and tracks 3,366 professional contacts across them, including 436 with verified work emails. Port Harcourt is the largest hub.

This list covers petrochemical plant builders 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 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

188Companies

3,366Contacts tracked

436Verified emails

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The 25 largest petrochemical plant builders based in Nigeria

Ranked by team size

Top 25 of 188 petrochemical plant builders based in Nigeria, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to petrochemical plant builders: 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	Alcon Nigeria LTD	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	1,001-5,000	417 contacts →
	Indirect evidence “ALCON Nigeria Limited commenced operation on the 10th day of May 1982 as MED Construction, incorporated with registration no: RC 47042.” Source: RevenueBase Database · checked Sep 17, 2026
2	Dover Engineering Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	501-1,000	315 contacts →
	Indirect evidence “Dover Engineering Limited is a reputable Engineering Design,EPC, Operations & Maintenance Company.” Source: RevenueBase Database · checked Sep 17, 2026
3	Pivot-Gis Limited	Indirect evidence	Lagos, NigeriaHQ checked Sep 17, 2026	201-500	264 contacts →
	Indirect evidence “PIVOT-GIS is a leading Nigerian Engineering, Procurement, Construction, Operations & Maintenance (EPCOM) company serving the oil, gas, and energy sectors since 2004.” Source: RevenueBase Database · checked Sep 17, 2026
4	Kohasa Engineering Company Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	11-50	139 contacts →
	Indirect evidence “Kohasa Engineering Company Limited is an oil and energy company based out of Plot 474, Trans Amadi industrial layout, Port Harcourt, RIVERS, Nigeria.” Source: RevenueBase Database · checked Sep 17, 2026
5	Morpol Engineering Services	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 17, 2026	501-1,000	127 contacts →
	Indirect evidence “Morpol Engineering Services Ltd.” Source: RevenueBase Database · checked Sep 17, 2026
6	LEE Engineering And Construction Company LTD	Indirect evidence	Ikoyi, NigeriaHQ checked Sep 17, 2026	501-1,000	114 contacts →
	Indirect evidence “Lee Engineering and Construction Co.” Source: RevenueBase Database · checked Sep 17, 2026
7	DBN Energies	Indirect evidence	Lagos, NigeriaHQ checked Sep 17, 2026	201-500	104 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 17, 2026
8	Rosetti Pivot LTD	Indirect evidence	Lagos, NigeriaHQ checked Sep 17, 2026	51-200	84 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
9	Bablink Resources Nigeria Limited	Indirect evidence	Warri, NigeriaHQ checked Sep 17, 2026	51-200	62 contacts →
	Indirect evidence “BABLINK RESOURCES NIGERIA LTD is a Nigerian owned EPCI Company poised to offer total Engineering and Construction solution to service demands of the Nation’s Oil, Gas and Energy…” Source: RevenueBase Database · checked Sep 17, 2026
10	Weltek Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	51-200	55 contacts →
	Indirect evidence “WELTEK Limited is an engineering, procurement and construction company, incorporated in Nigeria in 1986, to provide specialized services to the Oil & Gas, Power Generation…” Source: RevenueBase Database · checked Sep 17, 2026
11	Bridgsite Nigeria Limited BNL	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	201-500	55 contacts →
	Indirect 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
12	Homeland Integrated Offshore Services Limited	Indirect evidence	Lagos, NigeriaHQ checked Sep 17, 2026	51-200	55 contacts →
	Indirect evidence “Homeland Integrated Offshore Services Limited is a multi disciplinary organization for Engineering, Procurement, Construction and Installation services.” Source: RevenueBase Database · checked Sep 17, 2026
13	Tomsey Engineering & Services International LTD	Partial evidence	Ikeja, NigeriaHQ checked Sep 17, 2026	11-50	33 contacts →
	Partial evidence “TOMSEY Engineering & Services International Ltd is a trusted provider of Engineering, Procurement, and Construction (EPC) services to Nigeria’s Oil & Gas, Power, Petrochemical…” Source: RevenueBase Database · checked Sep 17, 2026
14	Gmunu Limited	Indirect evidence	Lekki Phase 1, NigeriaHQ checked Sep 17, 2026	51-200	27 contacts →
	Indirect evidence “GMUNU is a full-service Engineering Procurement and Construction Company.” Source: RevenueBase Database · checked Sep 17, 2026
15	Supasteel Limited	Indirect evidence	Kaduna, NigeriaHQ checked Sep 17, 2026	201-500	25 contacts →
	Indirect evidence “Supasteel Limited is a wholly indigenously owned Engineering Procurement and construction Company carrying out Fabrication, Installation, Repair of Static and Rotating Equipment…” Source: RevenueBase Database · checked Sep 17, 2026
16	Cozym Limited	Indirect evidence	Lekki Phase 1, NigeriaHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Cozym Limited is a family of Engineers and Consultants with core competencies in the areas of Feasibility Studies, Front End and Detailed Engineering Designs, Materials…” Source: RevenueBase Database · checked Sep 17, 2026
17	Hopic Nigeria LTD	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	Energy And Plant Technology Limited	Indirect evidence	Lekki Phase 1, NigeriaHQ checked Sep 17, 2026	51-200	16 contacts →
	Indirect evidence “Leading project consulting, engineering, procurement & construction company specializing in oil & gas, power generation, and manufacturing.” Source: RevenueBase Database · checked Sep 17, 2026
19	Piecurve Energy Projects Limited	Indirect evidence	Lekki, NigeriaHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “PIECURVE was founded by a team of leading consultants in engineering and project management with years of experience in Africa (Nigeria, Equatorial Guinea, Cameroon, Angola) and…” Source: RevenueBase Database · checked Sep 17, 2026
20	Indexpro Int'l Service LTD	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	51-200	14 contacts →
	Indirect evidence “Looking for engineering solutions that deliver lasting impact?” Source: RevenueBase Database · checked Sep 17, 2026
21	A-Dopt International Services Nigeria Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “A-Dopt International Services Nigeria Limited (ADIS) is an indigenous Engineering Procurement and Construction Company, that specializes in Industrial Automation…” Source: RevenueBase Database · checked Sep 17, 2026
22	Gasfleet Engineering Limited	Indirect evidence	Lasu Road, NigeriaHQ checked Sep 17, 2026	51-200	12 contacts →
	Indirect evidence “GASFLEET ENGINEERING LTD (GEL) was founded in 2016 to provide EPCM services for the energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
23	Offshore Dimensions Limited	Indirect evidence	Lagos, NigeriaHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “Offshore Dimensions Limited is a Nigerian EPC company that is committed to building engineering and construction capabilities in Nigeria.” Source: RevenueBase Database · checked Sep 17, 2026
24	Desicongroup	Indirect evidence	Victoria Island, NigeriaHQ checked Sep 17, 2026	201-500	10 contacts →
	Indirect evidence “For over 40 years, DESICON Engineering Limited has been an indigenous industry leader providing innovative Engineering, Procurement and Construction (EPC) solutions to our clients.” Source: RevenueBase Database · checked Sep 17, 2026
25	Selex Engineering & Construction Nigeria Limited	Indirect evidence	Lekki Phase 1, NigeriaHQ checked Sep 17, 2026	11-50	10 contacts →
	Indirect evidence “Selex Engineering & Construction Company Limited is an indigenous engineering company delivering integrated Engineering, Procurement, Fabrication, Construction, Installation…” Source: RevenueBase Database · checked Sep 17, 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: petrochemical plant builders. 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 petrochemical plant builders.
Partial evidence: Its own public description names part of petrochemical plant builders, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name petrochemical plant builders. 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 188 petrochemical plant builders based in Nigeria

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Petrochemical plant builders based in Nigeria at a glance

As of Sep 17, 2026

13.0%Verified-email coverage

17.9Average contacts per company

11-50Median size (employees)

22.3%Largest-city concentration · Port Harcourt

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 188 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 petrochemical plant builders, 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 “petrochemical plant builders”. 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 petrochemical plant builders), 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 petrochemical plant builders, 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, 436 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.

Petrochemical plant builders by metro

Petrochemical plant builders in Port Harcourt42
Petrochemical plant builders in Lagos38

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 petrochemical plant builders, 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 petrochemical plant builders are there based in Nigeria?

RevenueBase identified 188 petrochemical plant builders 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?

Alcon Nigeria LTD, headquartered in Port Harcourt, tops this list with the largest team on record.

Which city has the most petrochemical plant builders?

Port Harcourt leads with 42 headquartered companies, followed by Lagos (38) and Lagos State (19).

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 436 verified decision-maker contacts tracked across these 188 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.