Company lists · Data refreshed September 2026

Top 23 Industrial inspection companies based in South Africa

RevenueBase identified 111 industrial inspection companies headquartered in South Africa as of September 2026 and tracks 2,342 professional contacts across them, including 221 with verified work emails. Johannesburg is the largest hub.

This list covers industrial inspection 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 17, 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 17, 2026 86% judged on-target in blind review
111Companies
2,342Contacts tracked
221Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 23 largest industrial inspection companies based in South Africa

Ranked by team size
Top 23 of 111 industrial inspection companies based in South Africa, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to industrial inspection 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceJohannesburg, South AfricaHQ checked Sep 17, 202610001+383 contacts →

Partial evidence

“SGB-Cape is the largest industrial services company in Africa.”

Source: RevenueBase Database · checked Sep 17, 2026
2Partial evidenceSecunda, South AfricaHQ checked Sep 17, 2026201-500311 contacts →

Partial evidence

“The company focuses in providing its services to the petro -chemical, steel, mining and power generation industries.”

Source: RevenueBase Database · checked Sep 17, 2026
3Indirect evidenceWoodmead, South AfricaHQ checked Sep 17, 202610001+243 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
4Partial evidenceCenturion, South AfricaHQ checked Sep 17, 202651-200157 contacts →

Partial evidence

“Topfix is a leading industrial services company in South Africa with a portfolio of solutions for the petrochemical, power generation and resource mining industries.”

Source: RevenueBase Database · checked Sep 17, 2026
5Indirect evidenceVereeniging, South AfricaHQ checked Sep 17, 202651-200110 contacts →

Indirect evidence

“Gammatec NDT Supplies SOC Ltd is a company specialising in the manufacturing, marketing, sales and support for and to the Non-Destructive Testing industry.”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidenceEdenvale, South AfricaHQ checked Sep 17, 2026201-50043 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 17, 2026
7Indirect evidenceCape Town, South AfricaHQ checked Sep 17, 202611-5026 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
8Indirect evidenceJohannesburg, South AfricaHQ checked Sep 17, 202611-5025 contacts →

Indirect evidence

“Based in Johannesburg, South Africa, Quest Technical Services provides superior NDT, condition monitoring, consulting and risk assessment services for safety and…”

Source: RevenueBase Database · checked Sep 17, 2026
9Strong evidenceDurbanville, South AfricaHQ checked Sep 17, 202651-20022 contacts →

Strong evidence

“OIM-Services delivers advanced inspection, asset integrity, and industrial maintenance solutions across the energy, renewables, marine, and critical infrastructure sectors.”

Source: RevenueBase Database · checked Sep 17, 2026
10Partial evidenceCape Town, South AfricaHQ checked Sep 17, 202611-5016 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
11Indirect evidenceLyttelton Manor X3, South AfricaHQ checked Sep 17, 202611-5012 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 17, 2026
12Partial evidenceJohannesburg, South AfricaHQ checked Sep 17, 20261-1010 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
13Partial evidenceBoksburg, South AfricaHQ checked Sep 17, 202611-5010 contacts →

Partial evidence

“RBI Asset Management Pty Ltd is a Government Approved Inspection Authority as well as a Consulting Engineering Firm.”

Source: RevenueBase Database · checked Sep 17, 2026
14Indirect evidenceEdenvale, South AfricaHQ checked Sep 17, 202611-508 contacts →

Indirect evidence

“G.M.”

Source: RevenueBase Database · checked Sep 17, 2026
15Strong evidenceDurban, South AfricaHQ checked Sep 17, 20261-105 contacts →

Strong evidence

“HD Engineering Services is a project management company offering conventional and specialised non-destructive testing, inspection services, and industrial and marine supplies”

Source: RevenueBase Database · checked Sep 17, 2026
16Partial evidenceCape Town, South AfricaHQ checked Sep 17, 202611-504 contacts →

Partial evidence

“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…”

Source: RevenueBase Database · checked Sep 17, 2026
17Indirect evidenceEkurhuleni, South AfricaHQ checked Sep 17, 20261-104 contacts →

Indirect evidence

“A non-destructive testing company operating out of Johannesburg, South Africa.”

Source: RevenueBase Database · checked Sep 17, 2026
18Indirect evidenceHillcrest, South AfricaHQ checked Sep 17, 20261-104 contacts →

Indirect evidence

“The Directors of Remistar bring well over 20 years of Rope Access, NDT and Maintenance project experience to the company and are involved in every aspect of the daily technical…”

Source: RevenueBase Database · checked Sep 17, 2026
19Partial evidenceCity Of Tshwane, South AfricaHQ checked Sep 17, 20261-104 contacts →

Partial evidence

“At Niewalt Engineering, we specialize in supporting electric motor users through expert motor inspections, condition assessments, and independent consulting services that enhance…”

Source: RevenueBase Database · checked Sep 17, 2026
20Partial evidenceCape Town, South AfricaHQ checked Sep 17, 20261-103 contacts →

Partial evidence

“InspectorP Is An Innovative Leading Inspection Solutions Service Provider.”

Source: RevenueBase Database · checked Sep 17, 2026
21Indirect evidenceEdenvale, South AfricaHQ checked Sep 17, 202611-501 contacts →

Indirect evidence

“We specialize in all conventional and advanced NDT-services”

Source: RevenueBase Database · checked Sep 17, 2026
22Partial evidenceJohannesburg, South AfricaHQ checked Sep 17, 202611-501 contacts →

Partial evidence

“We provide specialist inspection,monitoring and modelling services within the built environment industry focusing on 3 platforms: Ground Penetrating Radar, Drones and Engineering…”

Source: RevenueBase Database · checked Sep 17, 2026
23Indirect evidenceHendrina Hendrina, South AfricaHQ checked Sep 17, 20261-101 contacts →

Indirect evidence

“I have distanced myself from AeroNDT-TS to undertake studies aligned with my personal growth objectives, with a commitment extending until sometime next year.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 23 of 111 industrial inspection companies based in South Africa

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 221 reachable decision-makers.

Free signup · no credit card

View the full list →

Industrial inspection companies based in South Africa at a glance

As of Sep 17, 2026
9.4%Verified-email coverage
21.1Average contacts per company
11-50Median size (employees)
11.7%Largest-city concentration · Johannesburg
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
54
11-50
40
51-200
8
201-500
4
501-1,000
2
1,001-5,000
1
10001+
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 111 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 industrial inspection 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 “industrial inspection 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 industrial inspection 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 industrial inspection 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, 221 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 17, 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 industrial inspection 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 industrial inspection companies are there based in South Africa?

RevenueBase identified 111 industrial inspection 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?

Sgb-Cape, headquartered in Elandsfontein Johannesburg, tops this list with the largest team on record.

Which city has the most industrial inspection companies?

Johannesburg leads with 13 headquartered companies, followed by Cape Town (9) and Boksburg (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 221 verified decision-maker contacts tracked across these 111 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 111 industrial inspection companies based in South Africa. Start with a free account, no credit card.

Download this list →

Related lists

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.