Company lists · Data refreshed September 2026

Top 25 Steel and aluminum suppliers based in South Africa

Name: Steel and aluminum suppliers based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 149 companies tracked

RevenueBase identified 149 steel and aluminum suppliers headquartered in South Africa as of September 2026 and tracks 1,452 professional contacts across them, including 233 with verified work emails. Johannesburg is the largest hub.

This list covers steel and aluminum suppliers headquartered in South Africa, 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 18, 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 18, 2026 86% judged on-target in blind review

149Companies

1,452Contacts tracked

233Verified emails

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The 25 largest steel and aluminum suppliers based in South Africa

Ranked by team size

Top 25 of 149 steel and aluminum suppliers based in South Africa, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to steel and aluminum suppliers: 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	Euro Steel PTY LTD	Strong evidence	Germiston, South AfricaHQ checked Sep 18, 2026	501-1,000	104 contacts →
	Strong evidence “Our core business is the stocking, processing and distribution of corrosion resistant metals such as stainless steel, duplex stainless grades and aluminium - in most profiles.” Source: RevenueBase Database · checked Sep 18, 2026
2	TW Profile Services	Partial evidence	Anderbolt, South AfricaHQ checked Sep 18, 2026	201-500	98 contacts →
	Partial evidence “Since 1994, TW Profile Services has been at the forefront of South Africa’s steel processing evolution-setting the standard as a dominant force in precision engineering and…” Source: RevenueBase Database · checked Sep 18, 2026
3	Clotan Steel	Partial evidence	Vanderbijlpark, South AfricaHQ checked Sep 18, 2026	201-500	85 contacts →
	Partial evidence “Clotan Steel is a privately owned manufacturer of roof sheeting, cold formed sections and slit strip that has been in operation from modern premises in Vanderbijlpark since 1983.” Source: RevenueBase Database · checked Sep 18, 2026
4	BSI Steel PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	201-500	48 contacts →
	Strong evidence “Established in 1985, BSi Steel has solidified its presence as a leading steel supplier across Southern Africa.” Source: RevenueBase Database · checked Sep 18, 2026
5	Pegasus Steel South Africa	Strong evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	51-200	33 contacts →
	Strong evidence “Established in 1995, Pegasus Steel offers professional steel processing services, working with sheet and plate in carbon steel, stainless steel and aluminium.” Source: RevenueBase Database · checked Sep 18, 2026
6	Qinisa Steel Solutions	Partial evidence	Alberton, South AfricaHQ checked Sep 18, 2026	11-50	32 contacts →
	Partial evidence “Located in Alberton, South Africa, we offer Tube Laser Cutting, Structural Steel & Plate processing using latest technology BLM fibre tube laser cutting, Ficep CNC drilling…” Source: RevenueBase Database · checked Sep 18, 2026
7	Structa Group PTY LTD	Partial evidence	Meyerton, South AfricaHQ checked Sep 18, 2026	1,001-5,000	29 contacts →
	Partial evidence “The Structa Group of Companies is a Privately owned South African Company, which consists of various subsidiaries that supply structural steel products and related services for…” Source: RevenueBase Database · checked Sep 18, 2026
8	Cadcon PTY LTD	Partial evidence	Pretoria, South AfricaHQ checked Sep 18, 2026	201-500	27 contacts →
	Partial evidence “Over three decades, CADCON has become one of South Africa's leading experts in steel and construction.” Source: RevenueBase Database · checked Sep 18, 2026
9	Leita Steel	Partial evidence	Pretoria, South AfricaHQ checked Sep 18, 2026	51-200	25 contacts →
	Partial evidence “Leita Steel, a privately owned company founded in 1968, has grown into one of Africa’s leading names in steel construction and fabrication, specialising in high-quality structural…” Source: RevenueBase Database · checked Sep 18, 2026
10	Channel Construction	Partial evidence	Durban, South AfricaHQ checked Sep 18, 2026	11-50	23 contacts →
	Partial evidence “Channel Construction was founded over 20 years ago as a medium to heavy fabricator and erector of structural steel including the manufacturing of modular structures, pipe racks…” Source: RevenueBase Database · checked Sep 18, 2026
11	Paragon Steel Structures	Indirect evidence	Pietermaritzburg, South AfricaHQ checked Sep 18, 2026	51-200	21 contacts →
	Indirect evidence “PSS started fabrication from a 108 square metre factory and expanded over the years to a square metre factory based in Mkondeni.” Source: RevenueBase Database · checked Sep 18, 2026
12	Astro Group	Strong evidence	Edenvale, South AfricaHQ checked Sep 18, 2026	51-200	19 contacts →
	Strong evidence “The Astro Group is South Africa's leading aluminium surface nisher and one of the country's foremost suppliers of aluminium and aluminium products.” Source: RevenueBase Database · checked Sep 18, 2026
13	Mineral-Loy	Partial evidence	Woodmead, South AfricaHQ checked Sep 18, 2026	11-50	19 contacts →
	Partial evidence “Mineral-Loy was founded in 1975 to meet the needs of the South African steel and foundry industry.” Source: RevenueBase Database · checked Sep 18, 2026
14	Kerizzma Steel	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	11-50	19 contacts →
	Partial evidence “Kerizzma Steel is a company based out of 20 Hospital Street, Johannesburg, Gauteng, South Africa.” Source: RevenueBase Database · checked Sep 18, 2026
15	Steel Pipes & Fittings	Partial evidence	Port Elizabeth, South AfricaHQ checked Sep 18, 2026	51-200	16 contacts →
	Partial evidence “Steel Pipes & Fittings, centrally located in Korsten, Port Elizabeth, South Africa are able to service the entire spectrum of steel and pipe needs, ranging from the general…” Source: RevenueBase Database · checked Sep 18, 2026
16	Cousins Steel International PTY LTD	Partial evidence	Durban, South AfricaHQ checked Sep 18, 2026	51-200	16 contacts →
	Partial evidence “Cousins Steel International (Pty) Ltd offers engineering design, supply, fabrication and the erection of economical steel structures.” Source: RevenueBase Database · checked Sep 18, 2026
17	Transcape Steels	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	51-200	16 contacts →
	Partial evidence “With nearly 60 years’ experience, in-depth knowledge and a proven service excellence record, Transcape Steels is recognised as a formidable force in South and Southern African…” Source: RevenueBase Database · checked Sep 18, 2026
18	GK Steel	Strong evidence	Steve Tshwete, South AfricaHQ checked Sep 18, 2026	51-200	16 contacts →
	Strong evidence “Your unrivalled steel supplier.” Source: RevenueBase Database · checked Sep 18, 2026
19	Special Steels	Strong evidence	Wadeville, South AfricaHQ checked Sep 18, 2026	51-200	14 contacts →
	Strong evidence “Special Steels supplies high-quality steel, emphasising low to high carbon and alloy steels.” Source: RevenueBase Database · checked Sep 18, 2026
20	Steel And Pipes For Africa KZN	Partial evidence	Pinetown, South AfricaHQ checked Sep 18, 2026	51-200	13 contacts →
	Partial evidence “Your One Stop Steel, Tubing and Hardware Shop” Source: RevenueBase Database · checked Sep 18, 2026
21	Isilo Steel PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	11-50	11 contacts →
	Partial evidence “Isilo Steel is a Level 3 B-BBEE, B.W.O company which was formed in 2017, and is widely considered a reliable company with a focus on supplying quality products and excellent…” Source: RevenueBase Database · checked Sep 18, 2026
22	Grating World PTY LTD	Indirect evidence	Germiston, South AfricaHQ checked Sep 18, 2026	51-200	11 contacts →
	Indirect evidence “GRATING WORLD is a member of a specialised equipment group which has provided solutions for engineers, architects, designers and end-users since 1956 … from minerals…” Source: RevenueBase Database · checked Sep 18, 2026
23	Imisebenzi Steel-Worx	Partial evidence	Ekurhuleni, South AfricaHQ checked Sep 18, 2026	11-50	11 contacts →
	Partial evidence “Imisebenzi Steel-Worx has been operational since 2015 and is a thriving business concern within the steel manufacturing sector.” Source: RevenueBase Database · checked Sep 18, 2026
24	Magnus Group	Partial evidence	Kempton Park, South AfricaHQ checked Sep 18, 2026	11-50	10 contacts →
	Partial evidence “Magnus Steel (PTY) Ltd was founded in December 2011 and is a stockist of all manufactured steel products.” Source: RevenueBase Database · checked Sep 18, 2026
25	Aluminium Trading PTY LTD	Strong evidence	Edenvale, South AfricaHQ checked Sep 18, 2026	51-200	9 contacts →
	Strong evidence “Aluminium Trading are proud suppliers of a vast range of both ferrous and non-ferrous metal products in South Africa.” Source: RevenueBase Database · checked Sep 18, 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: steel and aluminum suppliers. 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 steel and aluminum suppliers.
Partial evidence: Its own public description names part of steel and aluminum suppliers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name steel and aluminum suppliers. 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 149 steel and aluminum suppliers based in South Africa

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Steel and aluminum suppliers based in South Africa at a glance

As of Sep 18, 2026

16.0%Verified-email coverage

9.7Average contacts per company

11-50Median size (employees)

10.1%Largest-city concentration · Johannesburg

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 149 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 steel and aluminum suppliers, 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 South Africa whose own description of what they do matches “steel and aluminum suppliers”. 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 steel and aluminum suppliers), 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 steel and aluminum suppliers, and records with no verified work email. Companies headquartered outside South Africa 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, 233 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 18, 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.

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 steel and aluminum suppliers, 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 steel and aluminum suppliers are there based in South Africa?

RevenueBase identified 149 steel and aluminum suppliers headquartered in South Africa 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?

Euro Steel PTY LTD, headquartered in Germiston, tops this list with the largest team on record.

Which city has the most steel and aluminum suppliers?

Johannesburg leads with 15 headquartered companies, followed by Cape Town (7) and Germiston (6).

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 233 verified decision-maker contacts tracked across these 149 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 18, 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.