Company lists · Data refreshed October 2026

Top 16 Inspection and testing services for steel based in South Africa

Name: Inspection and testing services for steel based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 16, 2026 74 companies tracked

RevenueBase identified 74 company matches for inspection and testing services for steel associated with South Africa as of October 2026 and tracks 1,601 professional contacts across them, including 192 with verified work emails. Johannesburg is the largest hub.

This list covers company matches for inspection and testing services for steel 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 October 16, 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 Oct 16, 2026 How this list was built

74Companies

1,601Contacts tracked

192Verified emails

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The 16 largest inspection and testing services for steel based in South Africa

Ranked by team size

Top 16 of 74 company matches for inspection and testing services for steel based in South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 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	NEW AGE Engineering Solutions	Exact match	Secunda, South AfricaHQ recorded Oct 16, 2026	201-500	323 contacts →
	Exact match “The company focuses in providing its services to the petro -chemical, steel, mining and power generation industries.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2	SGS Industrial	Exact match	Woodmead, South AfricaHQ recorded Oct 16, 2026	10001+	251 contacts →
	Exact match “SGS is a multinational company which was established in 1878 in Geneva, Switzerland.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
3	Soillab	Exact match	Pretoria, South AfricaHQ recorded Oct 16, 2026	201-500	78 contacts →
	Exact match “The Soillab staff compliment includes Engineers, Technologists and Technicians, as well as skilled and semi-skilled operators.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4	Zwane Inspections	Exact match	Middelburg, South AfricaHQ recorded Oct 16, 2026	11-50	32 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
5	ONE Eighty Materials Engineering Solutions	Exact match	Cape Town, South AfricaHQ recorded Oct 16, 2026	11-50	27 contacts →
	Exact match “One Eighty was founded by metallurgist and materials engineer, Dr Janet Cotton, in 2002.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
6	Quest Technical Services PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Oct 16, 2026	11-50	25 contacts →
	Exact match “Based in Johannesburg, South Africa, Quest Technical Services provides superior NDT, condition monitoring, consulting and risk assessment services for safety and…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7	African NDT Centre PTY LTD	Exact match	Roodeport, South AfricaHQ recorded Oct 16, 2026	11-50	16 contacts →
	Exact match “African NDT Centre offers training and exams towards the internationally recognized and coveted British BINDT Personnel Certification of NDT certification scheme (PCN), as well as…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
8	Aerosud Metrology & Tool Room PTY LTD	Exact match	Pierre Van Ryneveld, South AfricaHQ recorded Oct 16, 2026	1-10	14 contacts →
	Exact match “AMTR has a history of developing world class capabilities in the manufacturing industry.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
9	Investmech PTY LTD	Exact match	Lyttelton Manor X3, South AfricaHQ recorded Oct 16, 2026	11-50	12 contacts →
	Exact match “Investmech (Pty) Ltd is a small to medium company formed in April 1998 in Pretoria by Michiel Heyns Pr.Eng, Anton Raath Pr.Eng, Corro van Waveren Pr.Eng, Herman Booysen and Johann…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
10	G.M. Voogt CC	Exact match	Edenvale, South AfricaHQ recorded Oct 16, 2026	11-50	9 contacts →
	Exact match “G.M.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
11	RBI Asset Management PTY LTD	Exact match	Boksburg, South AfricaHQ recorded Oct 16, 2026	11-50	9 contacts →
	Exact match “RBI Asset Management Pty Ltd is a Government Approved Inspection Authority as well as a Consulting Engineering Firm.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
12	Verifize PTY LTD	Exact match	Cape Town, South AfricaHQ recorded Oct 16, 2026	11-50	6 contacts →
	Exact match “Verifize is a South African inspection consultancy firm, specializing in various Non-Destructive Testing (NDT) projects, ranging from oil and gas, fabrication and manufacturing to…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
13	HD Engineering Services	Exact match	Durban, South AfricaHQ recorded Oct 16, 2026	1-10	5 contacts →
	Exact match “HD Engineering Services is a project management company offering conventional and specialised non-destructive testing, inspection services, and industrial and marine supplies” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
14	ECG Engineering And Consulting Group PTY LTD	Exact match	City Of Tshwane, South AfricaHQ recorded Oct 16, 2026	11-50	4 contacts →
	Exact match “ECG Engineering and Consulting Group (Pty) Ltd (“ECG”) is a SANAS-accredited steel inspection authority with almost two decades of experience in structural engineering.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
15	R&a Inspections PTY LTD	Exact match	Ekurhuleni, South AfricaHQ recorded Oct 16, 2026	1-10	4 contacts →
	Exact match “A non-destructive testing company operating out of Johannesburg, South Africa.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
16	Olivier Survey Group	Exact match	Germiston, South AfricaHQ recorded Oct 16, 2026	11-50	3 contacts →
	Exact match “Olivier Survey Group (Pty) Ltd is a customer-focused service group that offers professional services to various industries since 1995.” Recorded in the RevenueBase company graph · Oct 16, 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 “inspection and testing services for steel”. 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 16 of 74 inspection and testing services for steel based in South Africa

See the full list, filter by size, metro and specialty, and access 192 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Inspection and testing services for steel based in South Africa at a glance

As of Oct 16, 2026

12.0%Verified-email coverage

21.6Average contacts per company

11-50Median size (employees)

13.5%Largest-city concentration · Johannesburg

Oct 16, 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 South Africa, so it is reported there. Company counts and contact totals on this page are exact for South Africa, over 74 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 “inspection and testing services for steel” 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 192 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 October 16, 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 “inspection and testing services for steel”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many inspection and testing services for steel are there based in South Africa?

RevenueBase identified 74 company matches for inspection and testing services for steel associated with South Africa as of October 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?

NEW AGE Engineering Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most inspection and testing services for steel?

Johannesburg leads with 10 company records, followed by Cape Town (6) and Boksburg (5).

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 192 professional contacts with verified work emails tracked across these 74 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 October 16, 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.