Company lists · Data refreshed September 2026

Top 15 Structural aluminum manufacturers based in South Africa

RevenueBase identified 58 structural aluminum manufacturers headquartered in South Africa as of September 2026 and tracks 828 professional contacts across them, including 152 with verified work emails. Cape Town is the largest hub.

This list covers structural aluminum manufacturers 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
58Companies
828Contacts tracked
152Verified emails
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The 15 largest structural aluminum manufacturers based in South Africa

Ranked by team size
Top 15 of 58 structural aluminum manufacturers 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 structural aluminum manufacturers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceJohannesburg, South AfricaHQ checked Sep 18, 20261,001-5,000261 contacts →

Partial evidence

“Wispeco Aluminium is the largest aluminium extrusion supplier in Africa.”

Source: RevenueBase Database · checked Sep 18, 2026
2Partial evidenceKempton Park, South AfricaHQ checked Sep 18, 202651-20050 contacts →

Partial evidence

“H Systems (Pty) Ltd was established in KwaZulu Natal, South Africa in 1995 and operates in the construction industry specializing in the sector of aluminium systems.”

Source: RevenueBase Database · checked Sep 18, 2026
3Indirect evidenceEthekwini, South AfricaHQ checked Sep 18, 2026201-50027 contacts →

Indirect evidence

“Not all windows and doors are created equal - so don't assume that the windows and doors supplied have been through the stringent tests and design criteria ours have.”

Source: RevenueBase Database · checked Sep 18, 2026
4Indirect evidenceDurban, South AfricaHQ checked Sep 18, 202611-5027 contacts →

Indirect evidence

“SUNFLEX® South Africa was established in 2005, by Charles and Patrick Rostance.”

Source: RevenueBase Database · checked Sep 18, 2026
5Partial evidenceEkurhuleni, South AfricaHQ checked Sep 18, 202651-20025 contacts →

Partial evidence

“We aim to be great at offering branded aluminium systems that architects and fabricators trust”

Source: RevenueBase Database · checked Sep 18, 2026
6Partial evidenceEdenvale, South AfricaHQ checked Sep 18, 202651-20019 contacts →

Partial 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
7Strong evidenceJohannesburg, South AfricaHQ checked Sep 18, 202651-20016 contacts →

Strong evidence

“Inso Architectural Solutions remains one of the largest and fastest growing independent, custom manufacturers of aluminium windows and doors in Africa.”

Source: RevenueBase Database · checked Sep 18, 2026
8Partial evidenceJohannesburg, South AfricaHQ checked Sep 18, 202611-5010 contacts →

Partial evidence

“Advance Fenestration specializes in designing and manufacturing architectural aluminium systems for the local and export markets.”

Source: RevenueBase Database · checked Sep 18, 2026
9Strong evidencePretoria, South AfricaHQ checked Sep 18, 202611-509 contacts →

Strong evidence

“Action Glass and Aluminum specializes in the manufacture, distribution and installation of a wide range of top quality fabricated glass and aluminum products for both commercial…”

Source: RevenueBase Database · checked Sep 18, 2026
10Partial evidenceBrackenfell, South AfricaHQ checked Sep 18, 202611-508 contacts →

Partial evidence

“EXTRUSION WORLD Supplies and Imports Aluminium Extrusions, hardware and other products.”

Source: RevenueBase Database · checked Sep 18, 2026
11Partial evidencePort Elizabeth, South AfricaHQ checked Sep 18, 20261-107 contacts →

Partial evidence

“Modular Assembly Technology South Africa offers world class Modular Aluminum strut profiles and a variety of accessories.”

Source: RevenueBase Database · checked Sep 18, 2026
12Strong evidenceWorcester, South AfricaHQ checked Sep 18, 202611-505 contacts →

Strong evidence

“Greenline Aluminium specializes in the manufacture, supply, and installation of both standard and custom-made aluminum products.”

Source: RevenueBase Database · checked Sep 18, 2026
13Partial evidenceJohannesburg, South AfricaHQ checked Sep 18, 202651-2003 contacts →

Partial evidence

“SOLVE aims to position itself at the confluence of aluminium and technology, filling the need for an African aluminium solutions provider.”

Source: RevenueBase Database · checked Sep 18, 2026
14Partial evidenceDurban, South AfricaHQ checked Sep 18, 202611-503 contacts →

Partial evidence

“PG Aluminium KZN is a fabricated aluminium supplier based in Durban, KwaZulu-Natal.”

Source: RevenueBase Database · checked Sep 18, 2026
15Partial evidencePort Elizabeth, South AfricaHQ checked Sep 18, 202611-503 contacts →

Partial evidence

“ANSO Aluminium Port Elizabeth (Pty) is a leading distributor of Wispeco aluminium extrusions and stockists of Crealco and Sheerline architectural aluminium systems and hardware…”

Source: RevenueBase Database · checked Sep 18, 2026

Showing 15 of 58 structural aluminum manufacturers based in South Africa

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Structural aluminum manufacturers based in South Africa at a glance

As of Sep 18, 2026
18.4%Verified-email coverage
14.3Average contacts per company
11-50Median size (employees)
13.8%Largest-city concentration · Cape Town
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
21
51-200
10
201-500
1
1,001-5,000
2

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 58 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 structural aluminum manufacturers, 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 “structural aluminum manufacturers”. 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 structural aluminum manufacturers), 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 structural aluminum manufacturers, 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, 152 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 structural aluminum manufacturers, 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 structural aluminum manufacturers are there based in South Africa?

RevenueBase identified 58 structural aluminum manufacturers 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?

Wispeco Aluminium, headquartered in Johannesburg, tops this list with the largest team on record.

Which city has the most structural aluminum manufacturers?

Cape Town leads with 8 headquartered companies, followed by Durban (5) and Johannesburg (5).

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 152 verified decision-maker contacts tracked across these 58 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.