Company lists · Data refreshed September 2026

Top 25 Iso audit services based in South Africa

RevenueBase identified 98 iso audit services headquartered in South Africa as of September 2026 and tracks 457 professional contacts across them, including 138 with verified work emails. Johannesburg is the largest hub.

This list covers iso audit services 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 28, 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 28, 2026 86% judged on-target in blind review
98Companies
457Contacts tracked
138Verified emails
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The 25 largest iso audit services based in South Africa

Ranked by team size
Top 25 of 98 iso audit services based in South Africa, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to iso audit services: 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 evidenceCenturion, South AfricaHQ checked Sep 28, 202611-5069 contacts →

Partial evidence

“World Wide Industrial & Systems Engineers (WWISE) is a leading ISO consultancy, training, and systems implementation organisation with its Head Office based in Centurion, Gauteng…”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidencePort Shepstone, South AfricaHQ checked Sep 28, 202651-20059 contacts →

Indirect evidence

“Lockhat Incorporated is a firm of registered auditors offering a range of financial services to both corporate business and government.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceJohannesburg, South AfricaHQ checked Sep 28, 202611-5022 contacts →

Partial evidence

“WSL Audit uses audit methodology that is designed to comply with the International Standards on Auditing.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceEdenvale, South AfricaHQ checked Sep 28, 202611-5018 contacts →

Partial evidence

“Orkin Brown and Associates is an audit, accounting and tax practice based out of 43 St Margaret Road, Edenvale, Gauteng.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceDurban, South AfricaHQ checked Sep 28, 202611-5017 contacts →

Indirect evidence

“Masakhane is registered with the South African Institute of Chartered Accountants, as well as the Independent Regulatory Board of Auditors.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceSomerset West, South AfricaHQ checked Sep 28, 202611-5013 contacts →

Indirect evidence

“The global pre-eminent independent aviation safety advisory & quality auditing, training and software services company.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceDurban, South AfricaHQ checked Sep 28, 20261-1011 contacts →

Indirect evidence

“Wynleigh International Certification Services is a hallmark in the field of business excellence.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceIrene, South AfricaHQ checked Sep 28, 2026n/a10 contacts →

Partial evidence

“Leaf Quality Systems (LEAF) empowers auditors and audit firms with training, technical support and specialist services to elevate audit quality.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceSomerset West, South AfricaHQ checked Sep 28, 202611-508 contacts →

Partial evidence

“Sancert is a leading provider of accredited ISO certification services, helping businesses worldwide strengthen their management systems and achieve meaningful, independent…”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceCity Of Tshwane, South AfricaHQ checked Sep 28, 20261-106 contacts →

Indirect evidence

“IBRATSA`s Background Institute of Bio Research Auditing and Training in Southern Africa (IBRATSA) was established in 2019 to provide Education and Training Services within the…”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceCape Town, South AfricaHQ checked Sep 28, 20261-105 contacts →

Indirect evidence

“We customise solutions for customers seeking us to solve a problem.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceCenturion, South AfricaHQ checked Sep 28, 20261-105 contacts →

Indirect evidence

“MMRisk (Pty) Ltd is a 100% black owned and managed Approved Inspection Authority (AIA) for Major Hazard Installations (MHIs).”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceGauteng, South AfricaHQ checked Sep 28, 20261-104 contacts →

Partial evidence

“Synergy Consilium (SynerCon) helps South African organisations design, implement, certify and maintain ISO management systems their teams actually use - not binders that gather…”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidencePretoria, South AfricaHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“Legricon offers a wide range of consulting, auditing, and training services to assist employers in achieving and maintaining legal compliance, with specific focus on occupational…”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceJohannesburg, South AfricaHQ checked Sep 28, 20261-103 contacts →

Partial evidence

“Specialist In: Audit Services- General and specialized Information and Communication Technology audits - Forensic Investigation Advisory Services: 1.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceCenturion, South AfricaHQ checked Sep 28, 202611-503 contacts →

Indirect evidence

“NQA (National Quality Assurance) Africa provides training and third party management certification to all business sectors.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidencePretoria, South AfricaHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Honiball Aviation Auditing helps aviation organisations prepare for regulatory scrutiny, close compliance gaps and build practical systems that keep operations moving.”

Source: RevenueBase Database · checked Sep 28, 2026
18Strong evidenceGauteng, South AfricaHQ checked Sep 28, 20261-102 contacts →

Strong evidence

“Elevate Your Standards" Our Quality and Food Safety Consulting Business delivers: • ISO & FSSC Lead Auditor • Internal Audits • Animal Welfare and Biosecurity • GMP/Pre-requisite…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceCape Town, South AfricaHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“E-Fin is professional yet with a personal touch.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceUmhlanga Durban, South AfricaHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“Risk ZA is a well established, industry leading service provider with key expertise in all aspects of corporate sustainability, in particular; Governance, Risk and Compliance…”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceBoksburg, South AfricaHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“Enabling life long customer positivity and innovation through pre-eminent and perfectly suited solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceDurban, South AfricaHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“Gaudete Consulting provides Quality, Occupational Health and Safety and Environmental Management System implementation, training, internal and Legal Compliance services.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceCity Of Tshwane, South AfricaHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceCape Town, South AfricaHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“Re-LAB provides Audit Assistance, Contamination Remediation, and Quality Assurance Services to companies with Quality Control, Testing and Calibration Facilities.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceCape Town, South AfricaHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“SHEQ Connect is committed to providing our with service that exceeds their expectations in ISO 9001, IATF 16949, ISO 14001 and ISO 45001 Management Systems.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 98 iso audit services based in South Africa

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Iso audit services based in South Africa at a glance

As of Sep 28, 2026
30.2%Verified-email coverage
4.7Average contacts per company
1-10Median size (employees)
14.3%Largest-city concentration · Johannesburg
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
75
11-50
18
51-200
4
10001+
1

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 98 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 iso audit services, 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 “iso audit services”. 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 iso audit services), 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 iso audit services, 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, 138 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 28, 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 iso audit services, 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 iso audit services are there based in South Africa?

RevenueBase identified 98 iso audit services 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?

World Wide Industrial And Systems Engineers Wwise, headquartered in Centurion, tops this list with the largest team on record.

Which city has the most iso audit services?

Johannesburg leads with 14 headquartered companies, followed by Cape Town (9) and Centurion (8).

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 138 verified decision-maker contacts tracked across these 98 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 28, 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.