Company lists · Data refreshed November 2026

Top 25 Industrial testing services based in South Africa

RevenueBase identified 133 company matches for industrial testing services associated with South Africa as of November 2026 and tracks 22,406 professional contacts across them, including 6,869 with verified work emails. Johannesburg is the largest hub.

This list covers company matches for industrial testing services 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 November 6, 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 Nov 6, 2026 How this list was built
133Companies
22,406Contacts tracked
6,869Verified emails
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The 25 largest industrial testing services based in South Africa

Ranked by team size
Top 25 of 133 company matches for industrial testing services based in South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWoodmead, South AfricaHQ recorded Nov 6, 202610001+269 contacts →

Exact match

“SGS is a multinational company which was established in 1878 in Geneva, Switzerland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 202651-200248 contacts →

Exact match

“Established in as Africon, AssureCloud is Southern Africa’s largest and most comprehensive food safety, environmental, veterinary, and occupational hygiene laboratory group.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPretoria, South AfricaHQ recorded Nov 6, 2026201-50084 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchEdenvale, South AfricaHQ recorded Nov 6, 2026201-50047 contacts →

Exact match

“CIGroup is an innovative inspections company with a network of highly skilled specialists who do things a little differently by holding ourselves to higher standards, building…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPort Elizabeth, South AfricaHQ recorded Nov 6, 2026201-50036 contacts →

Exact match

“Labco provides laboratory testing services in the environmental and civil engineering industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchCape Town, South AfricaHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“One Eighty was founded by metallurgist and materials engineer, Dr Janet Cotton, in 2002.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGreenstone Hill, South AfricaHQ recorded Nov 6, 2026n/a25 contacts →

Exact match

“Total Quality.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 202611-5025 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 20261-1024 contacts →

Exact match

“The VGL Dimensions sampling laboratory was established to provide and impartial, reliable service to get the best out of the samples taken and to benefit our customers compliance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBenoni, South AfricaHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“With origins grounded in agricultural inspections, Control Union has a century-long history operating in the field of Commodity Inspections, quality, certifications, and risk…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDurban, South AfricaHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“Soilco offers a wide range of soil and materials testing services through its KwaZulu-Natal locations in Westmead (Pinetown), Pietermaritzburg and Vryheid and provides civil…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHartbeespoort, South AfricaHQ recorded Nov 6, 202651-20023 contacts →

Exact match

“NviroTek Laboratories is an independent and accredited laboratory group with a strong geographical presence in the Southern African region.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchStrydom Park, South AfricaHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“South Africa’s leading environmental laboratory with the broadest scope of ISO 17025 accreditation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchRoodeport, South AfricaHQ recorded Nov 6, 202611-5017 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 · Nov 6, 2026 · View company records in RevenueBase
15Exact matchPierre Van Ryneveld, South AfricaHQ recorded Nov 6, 20261-1016 contacts →

Exact match

“AMTR has a history of developing world class capabilities in the manufacturing industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchCape Town, South AfricaHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“We provide exceptional quality in pressure testing, leak detection, industrial, and procurement services, which are all completed to international standard.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchEdenvale, South AfricaHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“G.M.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“ISHECON is a South African Department of Labour Approved Inspection Authority for MHI Risk Assessments and for Explosives Risk Assessments.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLyttelton Manor X3, South AfricaHQ recorded Nov 6, 202611-5012 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 · Nov 6, 2026 · View company records in RevenueBase
20Exact matchCity Of Tshwane, South AfricaHQ recorded Nov 6, 202651-20011 contacts →

Exact match

“We specialise in the testing of construction materials for quality assurance and quality control purposes to our Clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Oilwatch is an Oil Analysis (OCM) Company based out of South Africa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCity Of Tshwane, South AfricaHQ recorded Nov 6, 20261-107 contacts →

Exact match

“An advanced testing laboratory specializing in mine waste testing for critical state, shear strength, permeabilities etc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGermiston, South AfricaHQ recorded Nov 6, 202611-506 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchCape Town, South AfricaHQ recorded Nov 6, 202611-506 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 · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBoksburg, South AfricaHQ recorded Nov 6, 20261-106 contacts →

Exact match

“I understand that you would like me to remember the following text:"Message from CEO" Please let me know if there is anything else I can assist you with.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 133 industrial testing services based in South Africa

See the full list, filter by size, metro and specialty, and access 6,869 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial testing services based in South Africa at a glance

As of Nov 6, 2026
30.7%Verified-email coverage
168.5Average contacts per company
11-50Median size (employees)
15.8%Largest-city concentration · Johannesburg
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
63
11-50
43
51-200
10
201-500
9
501-1,000
3
1,001-5,000
1
10001+
4

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 133 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 “industrial testing services” 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 6,869 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 November 6, 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 “industrial testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial testing services are there based in South Africa?

RevenueBase identified 133 company matches for industrial testing services associated with South Africa as of November 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?

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

Which city has the most industrial testing services?

Johannesburg leads with 21 company records, followed by Cape Town (15) and Durban (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 6,869 professional contacts with verified work emails tracked across these 133 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 November 6, 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.