Company lists · Data refreshed September 2026

Top 25 Marine environmental engineering companies based in South Africa

Name: Marine environmental engineering companies based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 137 companies tracked

RevenueBase identified 137 company matches for marine environmental engineering companies associated with South Africa as of September 2026 and tracks 1,934 professional contacts across them, including 609 with verified work emails. Cape Town is the largest hub.

This list covers company matches for marine environmental engineering companies associated with South Africa, 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 September 17, 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 Sep 17, 2026 How this list was built

137Companies

1,934Contacts tracked

609Verified emails

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The 25 largest marine environmental engineering companies based in South Africa

Ranked by team size

Top 25 of 137 company matches for marine environmental engineering companies based in South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Dormac	Exact match	Durban, South AfricaHQ recorded Sep 17, 2026	501-1,000	272 contacts →
	Exact match “Dormac Marine is a dynamic engineering company offering vessel owners and operators complete turnkey solutions for repair, refurbishment and modifications of assets through a full…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Jones & Wagener PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	51-200	228 contacts →
	Exact match “Jones & Wagener is a specialist firm of consulting engineers and scientists based in South Africa.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Sandock Austral Shipyards	Exact match	Durban, South AfricaHQ recorded Sep 17, 2026	501-1,000	154 contacts →
	Exact match “Boasting the enviable reputation of being the largest Shipyard in Southern Africa as well as still holding the record for building the largest Ship ever built on the African…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Axess Africa	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	51-200	144 contacts →
	Exact match “Axess Group creates world-class sustainable solutions for leading players in the oil and gas, wind energy, marine, and infrastructure industries worldwide.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	OSC Marine Group	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	51-200	104 contacts →
	Exact match “OSC Group – a forging of underwater innovation and engineering expertise.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Southern African Shipyards	Exact match	Durban, South AfricaHQ recorded Sep 17, 2026	201-500	71 contacts →
	Exact match “Southern African Shipyards is Africa’s leading commercial and naval Ship Builder and Ship Repair Company, providing cost effective services and solutions to the Marine Industry…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	ECO Elementum	Exact match	City Of Tshwane, South AfricaHQ recorded Sep 17, 2026	51-200	68 contacts →
	Exact match “Established in 2013, Eco Elementum is a leading environmental and engineering consultancy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Linsen Nambi	Exact match	Durban, South AfricaHQ recorded Sep 17, 2026	51-200	60 contacts →
	Exact match “Linsen Nambi is an entrepreneurial organisation focused on niche opportunities in maritime and midstream-energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Hesper Engineering	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	11-50	50 contacts →
	Exact match “Hesper Engineering is a ship repair and marine mechanical engineering specialist situated in Paarden Eiland, Cape Town in close proximity to Table Bay Harbour.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Cinco Engineering PTY LTD	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	11-50	49 contacts →
	Exact match “As an owner-managed entity, Cinco Engineering offers a full scope of engineering services that draws on the strength of its shareholding companies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Singo Consulting	Exact match	Emalahleni, South AfricaHQ recorded Sep 17, 2026	51-200	44 contacts →
	Exact match “Singo Consulting (Pty) Ltd is a private independent research consultancy and advisory company based in eMalahleni (Witbank), holding no equity in any project and is owned by the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Zitholele Consulting	Exact match	Midrand, South AfricaHQ recorded Sep 17, 2026	11-50	33 contacts →
	Exact match “ZITHOLELE CONSULTING, offers Specialist Consulting Services in the fields of Engineering, Environmental Management, Waste Management and Strategic Communication.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Allweld Marine And Industrial	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	51-200	33 contacts →
	Exact match “Allweld, a Cape Town-based marine and industrial engineering company, has been servicing the Southern African market for over fifty years.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Groundtruth	Exact match	Hilton, South AfricaHQ recorded Sep 17, 2026	11-50	32 contacts →
	Exact match “An award-winning multidisciplinary consulting company with over 20 years experience in water, biodiversity, and engineering across aquatic and terrestrial ecosystems.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Kimopax Group	Exact match	Midrand, South AfricaHQ recorded Sep 17, 2026	11-50	31 contacts →
	Exact match “Kimopax is a company rendering specialized services in selected earth and environmental sciences, engineering disciplines and related project management functions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Project Management International	Exact match	South AfricaHQ recorded Sep 17, 2026	11-50	30 contacts →
	Exact match “Project Management International (PMI) is a dynamic project management company specialising in tailor-made Marine Construction, Engineering Services and Survey & Site…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Nouum Engineering PTY LTD	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	11-50	24 contacts →
	Exact match “Founded in 2016, Nouum consistently provides turnkey solutions for the maritime and stationary power industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	JMA Consulting	Exact match	Delmas, South AfricaHQ recorded Sep 17, 2026	11-50	21 contacts →
	Exact match “INTRODUCTION JMA Consulting (Pty) Ltd is an environmental consulting company which comprises of highly trained professionals, each of whom are registered with the South African…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	PETEC	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	51-200	19 contacts →
	Exact match “MARINE HYDRAULIC ENGINEERS SINCE 1988 As a trusted provider of engineering services and solutions, Petec Services has continuously evolved to meet the dynamic needs of the marine…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Coastwise Consulting	Exact match	Durban, South AfricaHQ recorded Sep 17, 2026	1-10	16 contacts →
	Exact match “CoastWise Consulting is a specialist environmental consulting company operating in collaboration with like-minded specialists in the coastal and estuarine environments” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Envitech	Exact match	Parktown North, South AfricaHQ recorded Sep 17, 2026	11-50	15 contacts →
	Exact match “Envitech is a professional engineering group of companies focusing on sustainable technologies and projects in the environmental, waste management and mining sectors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	SEA Technology Services	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	1-10	14 contacts →
	Exact match “Sea Technology Services is a Cape Town based Oceanographic Engineering and Services company, established in 1995.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Guillaume NEL Environmental Consultants Gnec	Exact match	Paarl, South AfricaHQ recorded Sep 17, 2026	11-50	14 contacts →
	Exact match “We specialize in Environmental Impact Assessments, Basic Assessment Reports, Environmental Control Officers, Water Use Licenses Application, Waste Management and Mining…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Nsovo Environmental Consulting	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “Our specialist area of focus is the assessment of multifaceted projects, including the establishment of linear developments, bulk infrastructure, power generation and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Sillito Environmental Consulting PTY LTD	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	11-50	10 contacts →
	Exact match “Sillito Environmental Consulting provides expertise in the areas of environmental authorisation, licencing, monitoring and auditing, contamination assessment, development of…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “marine environmental engineering companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 137 marine environmental engineering companies based in South Africa

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Marine environmental engineering companies based in South Africa at a glance

As of Sep 17, 2026

31.5%Verified-email coverage

14.1Average contacts per company

1-10Median size (employees)

22.6%Largest-city concentration · Cape Town

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for South Africa, so it is reported there. Company counts and contact totals on this page are exact for South Africa, over 137 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 South Africa whose business descriptions match “marine environmental engineering companies” 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 609 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 September 17, 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 “marine environmental engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many marine environmental engineering companies are there based in South Africa?

RevenueBase identified 137 company matches for marine environmental engineering companies associated with South Africa as of September 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?

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

Which city has the most marine environmental engineering companies?

Cape Town leads with 31 company records, followed by Pretoria (11) and Durban (8).

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 609 professional contacts with verified work emails tracked across these 137 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 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 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.