Company lists · Data refreshed September 2026

Top 23 Offshore environmental consulting based in Nigeria

Name: Offshore environmental consulting based in Nigeria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 171 companies tracked

RevenueBase identified 171 offshore environmental consulting headquartered in Nigeria as of September 2026 and tracks 1,763 professional contacts across them, including 124 with verified work emails. Lagos is the largest hub.

This list covers offshore environmental consulting 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 20, 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 20, 2026 86% judged on-target in blind review

171Companies

1,763Contacts tracked

124Verified emails

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The 23 largest offshore environmental consulting based in Nigeria

Ranked by team size

Top 23 of 171 offshore environmental consulting based in Nigeria, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to offshore environmental consulting: 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	Hydrodive Group	Partial evidence	Lagos, NigeriaHQ checked Sep 20, 2026	201-500	409 contacts →
	Partial evidence “HydroDive provides a broad range of Marine Vessels, Air, Mixed Gas and Saturation Diving, ROV, AUV and Survey Services primarily to the offshore & inshore Petroleum Industry of…” Source: RevenueBase Database · checked Sep 20, 2026
2	Aviam Offshore Engineering Company Limited	Indirect evidence	Lagos, NigeriaHQ checked Sep 20, 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 20, 2026
3	Elper Oilfield Engineering	Indirect evidence	Lagos, NigeriaHQ checked Sep 20, 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 20, 2026
4	Pisces Offshore Limited	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 20, 2026	11-50	41 contacts →
	Partial evidence “Who We Are Pisces Offshore was created to provide offshore positioning and survey services in the West African region.” Source: RevenueBase Database · checked Sep 20, 2026
5	G.O.S.L Nigeria Limited	Partial evidence	Lagos, NigeriaHQ checked Sep 20, 2026	11-50	40 contacts →
	Partial evidence “G.O.S.L NIGERIA LIMITED is an indigenous company incorporated in Nigeria that has evolved into a leading front-end company providing a range of offshore survey and support…” Source: RevenueBase Database · checked Sep 20, 2026
6	Subsea100 Global	Partial evidence	Port Harcourt, NigeriaHQ checked Sep 20, 2026	11-50	30 contacts →
	Partial evidence “Overview Subsea100 Global(SHG), established in 2011, is a leading independent Offshore Services Contractor providing a range of Geophysical, Geotechnical and Subsea related…” Source: RevenueBase Database · checked Sep 20, 2026
7	Deepwater Engineering Limited DEL	Partial evidence	Warri, NigeriaHQ checked Sep 20, 2026	11-50	29 contacts →
	Partial evidence “Deepwater Engineering Limited (DEL) is a multi-discipline service provider formed by experienced professionals with years of direct experience within the major offshore Oil and…” Source: RevenueBase Database · checked Sep 20, 2026
8	Breeze Energy Limited	Indirect evidence	Lekki, NigeriaHQ checked Sep 20, 2026	51-200	22 contacts →
	Indirect evidence “Breeze Energy Limited is a proudly African company managed by a team of seasoned professionals with extensive experience in Oil & Gas Services, Humanitarian and Disaster Relief…” Source: RevenueBase Database · checked Sep 20, 2026
9	Independent Project Monitoring Company Ipmc Limited	Indirect evidence	Lagos, NigeriaHQ checked Sep 20, 2026	51-200	22 contacts →
	Indirect evidence “Independent Project Monitoring Company Limited is a group of professional individuals, who are competent and capable enough to help clients achieve their goals.” Source: RevenueBase Database · checked Sep 20, 2026
10	Eems Limited Engineering And Environmental Management Services Limited	Partial evidence	Fct-abuja, NigeriaHQ checked Sep 20, 2026	11-50	21 contacts →
	Partial evidence “ABOUT US: EEMS Limited is a multi-disciplinary consulting firm incorporated as a limited liability company under the Companies and Allied Matters Act 1990 in September 1997.” Source: RevenueBase Database · checked Sep 20, 2026
11	Atlantic Fenders And Support Services	Indirect evidence	Lagos Island, NigeriaHQ checked Sep 20, 2026	51-200	18 contacts →
	Indirect evidence “Welcome to the AFSS business page.” Source: RevenueBase Database · checked Sep 20, 2026
12	Dexterpro Limited	Indirect evidence	Lekki Phase 1, NigeriaHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Dexter Pro is a fast-growing, dynamic and pragmatic solutions-driven company.” Source: RevenueBase Database · checked Sep 20, 2026
13	Deep Water Consultancy & Engineering Services LTD	Indirect evidence	Lekki, NigeriaHQ checked Sep 20, 2026	11-50	15 contacts →
	Indirect evidence “DeepWater Consultancy & Engineering Services Limited is an Independent Oil and Gas Subsea technology, Pipeline management and Field development engineering consultancy company…” Source: RevenueBase Database · checked Sep 20, 2026
14	Afrikdelta Marine Limited Adml	Indirect evidence	Lagos, NigeriaHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
15	Tethys Plantgeria LTD	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
16	Apex Analytics Limited	Indirect evidence	Port Harcourt, NigeriaHQ checked Sep 20, 2026	1-10	12 contacts →
	Indirect evidence “Apex Analytics Limited is a 100% Nigerian Company, owned and managed by young Nigerian experienced professionals (with experience ranging from 6-15 years).” Source: RevenueBase Database · checked Sep 20, 2026
17	Kench Survey	Partial evidence	Warri, NigeriaHQ checked Sep 20, 2026	1-10	9 contacts →
	Partial evidence “Kench Survey Limited with over 25 years in Operation provides technical services and professional consulting in the area of land and marine surveying, mapping and land information…” Source: RevenueBase Database · checked Sep 20, 2026
18	Terra Aqua Environmental Consultancy Limited	Partial evidence	Ogun State, NigeriaHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial evidence “Terra Aqua Environmental Consultancy Ltd is a foremost Nigerian Environmental Consultancy Firms providing a plethora of solutions in the “green business”.” Source: RevenueBase Database · checked Sep 20, 2026
19	Delta Systematics LTD	Strong evidence	Port Harcourt, NigeriaHQ checked Sep 20, 2026	11-50	8 contacts →
	Strong evidence “An Environmental Consulting firm with a wealth of experience in different environmental process projects; EIA, PIA, EER, We are also a leading establishment with expertise in GIS…” Source: RevenueBase Database · checked Sep 20, 2026
20	Batoil Services Nigeria Limited	Partial evidence	Lekki, NigeriaHQ checked Sep 20, 2026	51-200	6 contacts →
	Partial evidence “We are into core offshore and onshore survey, which cut across Geophysical, Geotechnical, Seabed Survey and other forms of positioning support.” Source: RevenueBase Database · checked Sep 20, 2026
21	Greenstad Projects Limited	Strong evidence	Ibadan, NigeriaHQ checked Sep 20, 2026	1-10	6 contacts →
	Strong evidence “Greenstad Projects Limited is a leading environmental consulting, development advisory and training firm comprising of multidisciplinary team of experts with requisite project…” Source: RevenueBase Database · checked Sep 20, 2026
22	Avant-Garde Limited	Partial evidence	Lagos, NigeriaHQ checked Sep 20, 2026	11-50	5 contacts →
	Partial evidence “Avant-Garde Limited an Environmental One stop shop providing specialized environmental and sustainability management consultancy services to a wide range of clients across…” Source: RevenueBase Database · checked Sep 20, 2026
23	Vicinia Solutions Limited	Strong evidence	Oshodi, NigeriaHQ checked Sep 20, 2026	1-10	2 contacts →
	Strong evidence “We are a sustainability and environmental consulting service provider, poised to deliver innovative and high-quality professional advisory services.” Source: RevenueBase Database · checked Sep 20, 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: offshore environmental consulting. 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 offshore environmental consulting.
Partial evidence: Its own public description names part of offshore environmental consulting, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore environmental consulting. 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 23 of 171 offshore environmental consulting based in Nigeria

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Offshore environmental consulting based in Nigeria at a glance

As of Sep 20, 2026

7.0%Verified-email coverage

10.3Average contacts per company

11-50Median size (employees)

18.7%Largest-city concentration · Lagos

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 171 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 offshore environmental consulting, 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 “offshore environmental consulting”. 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 offshore environmental consulting), 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 offshore environmental consulting, 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, 124 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 20, 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.

Offshore environmental consulting by metro

Offshore environmental consulting in Lagos32
Offshore environmental consulting in Port Harcourt31

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 offshore environmental consulting, 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 offshore environmental consulting are there based in Nigeria?

RevenueBase identified 171 offshore environmental consulting 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?

Hydrodive Group, headquartered in Lagos, tops this list with the largest team on record.

Which city has the most offshore environmental consulting?

Lagos leads with 32 headquartered companies, followed by Port Harcourt (31) and Lagos State (14).

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 124 verified decision-maker contacts tracked across these 171 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 20, 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.