Company lists · Data refreshed September 2026

Top 25 Structural steel fabrication companies based in South Africa

Name: Structural steel fabrication companies 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 343 companies tracked

RevenueBase identified 343 structural steel fabrication companies headquartered in South Africa as of September 2026 and tracks 3,255 professional contacts across them, including 500 with verified work emails. Johannesburg is the largest hub.

This list covers structural steel fabrication companies 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

343Companies

3,255Contacts tracked

500Verified emails

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The 25 largest structural steel fabrication companies based in South Africa

Ranked by team size

Top 25 of 343 structural steel fabrication companies 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 steel fabrication companies: 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	Smei Projects	Strong evidence	Boksburg, South AfricaHQ checked Sep 18, 2026	501-1,000	229 contacts →
	Strong evidence “SMEI is a Specialist Project Management Construction Company working into the Supply, Fabrication, delivery and Installation of Structural Steel, Mechanical Equipment, Flooring…” Source: RevenueBase Database · checked Sep 18, 2026
2	Efficient Engineering	Strong evidence	Elandsfontein, South AfricaHQ checked Sep 18, 2026	201-500	129 contacts →
	Strong evidence “Efficient Engineering is South Africa's leading steel fabrication, machining, manufacturing and heavy engineering company.” Source: RevenueBase Database · checked Sep 18, 2026
3	Fabrinox PTY LTD	Indirect evidence	Paarl, South AfricaHQ checked Sep 18, 2026	51-200	125 contacts →
	Indirect evidence “For more than 32 years, Fabrinox has delivered complete, tailor-made manufacturing solutions to a global customer base spanning six continents.” Source: RevenueBase Database · checked Sep 18, 2026
4	Steel Services And Allied Industries	Strong evidence	Near Johannesburg, South AfricaHQ checked Sep 18, 2026	501-1,000	112 contacts →
	Strong evidence “The Steel Services & Allied Industries Group specialises in SMPP projects for the mining and construction industries – managing structural steel projects.” Source: RevenueBase Database · checked Sep 18, 2026
5	Duys Engineering Group	Indirect evidence	Durban, South AfricaHQ checked Sep 18, 2026	201-500	112 contacts →
	Indirect evidence “Duys Engineering is a proudly family-owned and managed business, founded in 1960 by Pieter M.” Source: RevenueBase Database · checked Sep 18, 2026
6	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
7	Picm PTY LTD	Partial evidence	Randfontein, South AfricaHQ checked Sep 18, 2026	201-500	70 contacts →
	Partial evidence “ABOUT US PICM is a leading provider of high-quality fabrication and civil construction services with a proven track record of delivering exceptional projects since 1980.” Source: RevenueBase Database · checked Sep 18, 2026
8	Turnmill Proquip Engineering PTY LTD	Indirect evidence	Vanderbijlpark, South AfricaHQ checked Sep 18, 2026	51-200	68 contacts →
	Indirect evidence “Turnmill Proquip Engineering (Pty) Ltd, is a medium specialist engineering company situated in Vanderbijlpark.” Source: RevenueBase Database · checked Sep 18, 2026
9	Viva Engineering	Indirect evidence	Kempton Park, South AfricaHQ checked Sep 18, 2026	201-500	57 contacts →
	Indirect evidence “Viva Engineering is a trusted single-source partner delivering world-class, multi-disciplinary project solutions for mining, construction, industrial, infrastructure and…” Source: RevenueBase Database · checked Sep 18, 2026
10	Just Engineering PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	201-500	52 contacts →
	Partial evidence “About Us At Just Engineering, we specialize in delivering top-tier engineering solutions across the marine, mining, and structural sectors.” Source: RevenueBase Database · checked Sep 18, 2026
11	Bantry Construction Services PTY LTD	Indirect evidence	Florida Ext 11, South AfricaHQ checked Sep 18, 2026	51-200	50 contacts →
	Indirect evidence “Building Excellence since 1988: Meet Bantry Construction, Your Trusted Partner for Industrial Projects Bantry Construction has been building excellence since 1988, specialising in…” Source: RevenueBase Database · checked Sep 18, 2026
12	B&t Steel Construction	Strong evidence	Delmas, South AfricaHQ checked Sep 18, 2026	51-200	44 contacts →
	Strong evidence “B&T Steel specialises in design, detailing, fabrication, painting, erection and cladding of steel structures throughout Africa.” Source: RevenueBase Database · checked Sep 18, 2026
13	Facade Solutions	Indirect evidence	Glen Anil, South AfricaHQ checked Sep 18, 2026	51-200	40 contacts →
	Indirect evidence “Facade Solutions offers a complete unique service system to design, supply and construct a customised building solution.” Source: RevenueBase Database · checked Sep 18, 2026
14	Khonzi Engineering Services	Indirect evidence	Richards Bay, South AfricaHQ checked Sep 18, 2026	51-200	40 contacts →
	Indirect evidence “Established by Nokuthula Madondo in November and based in Richards Bay, South Africa with a branch in Durban Kwazulu-Natal.” Source: RevenueBase Database · checked Sep 18, 2026
15	PL Steel Services PTY LTD	Partial evidence	Jet Park, South AfricaHQ checked Sep 18, 2026	51-200	34 contacts →
	Partial evidence “At PL Steel, we don’t just fabricate steel-we shape the future of construction, industry, and infrastructure with precision and excellence.” Source: RevenueBase Database · checked Sep 18, 2026
16	Pegasus Steel South Africa	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	51-200	33 contacts →
	Partial 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
17	Qinisa Steel Solutions	Strong evidence	Alberton, South AfricaHQ checked Sep 18, 2026	11-50	32 contacts →
	Strong 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
18	Meyerton Engineering	Partial evidence	Meyerton, South AfricaHQ checked Sep 18, 2026	51-200	32 contacts →
	Partial evidence “Well-known and highly established carbon and stainless steel fabricator committed to ensure innovative, long-term partnerships with our customers through superior quality.” Source: RevenueBase Database · checked Sep 18, 2026
19	Ratamang Heavy Works And Fabrication	Partial evidence	Vanderbijlpark, South AfricaHQ checked Sep 18, 2026	201-500	30 contacts →
	Partial evidence “Heavy Works and Fabrication” Source: RevenueBase Database · checked Sep 18, 2026
20	Styria Stainless Steel Fabrication	Strong evidence	Germiston, South AfricaHQ checked Sep 18, 2026	51-200	29 contacts →
	Strong evidence “Styria Stainless Steel Fabrication was founded in 1956 and is a leading fabricator of stainless steel tanks, vessels, platework, chutes, hoppers, columns, heat exchangers…” Source: RevenueBase Database · checked Sep 18, 2026
21	Structa Group PTY LTD	Strong evidence	Meyerton, South AfricaHQ checked Sep 18, 2026	1,001-5,000	29 contacts →
	Strong 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
22	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
23	RSB Contracts	Partial evidence	Boksburg, South AfricaHQ checked Sep 18, 2026	51-200	26 contacts →
	Partial evidence “We here at RSB Contracts bring structure to your design.” Source: RevenueBase Database · checked Sep 18, 2026
24	Bhubezi Projects	Indirect evidence	Boksburg, South AfricaHQ checked Sep 18, 2026	11-50	25 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026
25	Leita Steel	Strong evidence	Pretoria, South AfricaHQ checked Sep 18, 2026	51-200	25 contacts →
	Strong 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

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: structural steel fabrication companies. 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 structural steel fabrication companies.
Partial evidence: Its own public description names part of structural steel fabrication companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name structural steel fabrication companies. 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 343 structural steel fabrication companies based in South Africa

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Structural steel fabrication companies based in South Africa at a glance

As of Sep 18, 2026

15.4%Verified-email coverage

9.5Average contacts per company

11-50Median size (employees)

9.6%Largest-city concentration · Johannesburg

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

112

11-50

127

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 343 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 steel fabrication companies, 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 steel fabrication companies”. 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 steel fabrication companies), 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 steel fabrication companies, 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, 500 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.

Structural steel fabrication companies by metro

Structural steel fabrication companies in Johannesburg33

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 steel fabrication companies, 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 steel fabrication companies are there based in South Africa?

RevenueBase identified 343 structural steel fabrication companies 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?

Smei Projects, headquartered in Boksburg, tops this list with the largest team on record.

Which city has the most structural steel fabrication companies?

Johannesburg leads with 33 headquartered companies, followed by Cape Town (19) and Pretoria (12).

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 500 verified decision-maker contacts tracked across these 343 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.