Company lists · Data refreshed September 2026

Top 24 Penetration testing companies based in South Africa

RevenueBase identified 137 company matches for penetration testing companies associated with South Africa as of September 2026 and tracks 1,263 professional contacts across them, including 331 with verified work emails. Johannesburg is the largest hub.

This list covers company matches for penetration testing companies 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 September 20, 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 Sep 20, 2026 How this list was built
137Companies
1,263Contacts tracked
331Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 24 largest penetration testing companies based in South Africa

Ranked by team size
Top 24 of 137 company matches for penetration testing companies based in South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchSandton, South AfricaHQ recorded Sep 20, 202651-200228 contacts →

Exact match

“CYBER1 Solutions is a Cyber Security specialist operating in Southern Africa, East & West Africa, Dubai and EMEA.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchJohannesburg, South AfricaHQ recorded Sep 20, 202651-200130 contacts →

Exact match

“Welcome back to the future, MWR CyberSec!”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchCape Town, South AfricaHQ recorded Sep 20, 2026501-1,000120 contacts →

Exact match

“Integrity360 is a leading independent cybersecurity and PCI specialist operating across EMEA and North America, with offices spanning the UK and Ireland, Bulgaria, Italy, Sweden…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchBryanston, South AfricaHQ recorded Sep 20, 202611-5035 contacts →

Exact match

“Redshift is a South African cyber security advisory company assisting our customers with assessing their cyber security posture, determining risk exposure and building robust…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchJohannesburg, South AfricaHQ recorded Sep 20, 202611-5028 contacts →

Exact match

“We offer the support and guidance of industry leaders and security specialists to help you accelerate your cybersecurity improvement via cutting-edge methodologies and risk…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchSandton, South AfricaHQ recorded Sep 20, 202611-5023 contacts →

Exact match

“Founded by highly experienced cyber security specialists in 2012.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchDurban, South AfricaHQ recorded Sep 20, 202651-20022 contacts →

Exact match

“ICON Information Systems is an ISO9001 and ISO27001 certified end-to-end ICT Services Provider with 9 years of operational experience under its belt.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchJohannesburg, South AfricaHQ recorded Sep 20, 202611-5019 contacts →

Exact match

“SecureConekt provides various Information Security services to a wide range of industries.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchFourways, South AfricaHQ recorded Sep 20, 202611-5019 contacts →

Exact match

“Cyber threats are evolving, but securing your business doesn’t have to be complicated or expensive.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchCity Of Tshwane, South AfricaHQ recorded Sep 20, 202611-5019 contacts →

Exact match

“At NEWORDER, we specialise in Tactical Cyber Security, because attackers don’t follow the rules.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchPretoria, South AfricaHQ recorded Sep 20, 202611-5018 contacts →

Exact match

“At Cyber83, we are dedicated to delivering top-tier cybersecurity solutions that meet the complex needs of today's enterprises.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchDurbanville, South AfricaHQ recorded Sep 20, 202611-5017 contacts →

Exact match

“Risk X Group assists organisations stay ahead of an evolving cyber threat and regulatory landscape.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchMidrand, South AfricaHQ recorded Sep 20, 202611-5017 contacts →

Exact match

“Clyrofor is a South African #Cybersecurity company that is founded on the principles of empowerment and innovation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchDurban, South AfricaHQ recorded Sep 20, 202611-5015 contacts →

Exact match

“Silent Guardian is a cybersecurity firm based in Durban, South Africa.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchJohannesburg, South AfricaHQ recorded Sep 20, 202611-5015 contacts →

Exact match

“TechEx Digital Solutions is a leading cyber technology firm specialising in providing robust solutions to safeguard small, medium and large organisations from digital threats.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchJohannesburg, South AfricaHQ recorded Sep 20, 20261-1014 contacts →

Exact match

“Welcome to SIFTCON Forensic Services – your trusted partner in expert forensic solutions, cybersecurity assessments, data analytics, and risk management strategies.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchCape Town, South AfricaHQ recorded Sep 20, 202611-5014 contacts →

Exact match

“Whirly Labs (Pty) Ltd is a security consultancy based in Cape Town, South Africa.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchJohannesburg, South AfricaHQ recorded Sep 20, 202611-5014 contacts →

Exact match

“Telspace Africa was established in 2002 by CEO Dino Covotsos, who is still Chairman of the Board.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchCenturion, South AfricaHQ recorded Sep 20, 20261-1013 contacts →

Exact match

“Do you have a problem with cybersecurity, or maybe you have a concern about the risks on your infrastructure?”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchJohannesburg, South AfricaHQ recorded Sep 20, 20261-109 contacts →

Exact match

“Cybersecurity for SMEs That Can’t Afford Downtime.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchMogale City, South AfricaHQ recorded Sep 20, 202611-508 contacts →

Exact match

“Welcome to CyberStack, a next-generation professional services company dedicated to reducing our clients' cyber security expenditures while enhancing their business value.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchCape Town, South AfricaHQ recorded Sep 20, 20261-107 contacts →

Exact match

“Information Security Expertise for small, medium and large enterprises.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchDurban, South AfricaHQ recorded Sep 20, 20261-106 contacts →

Exact match

“Did you know 60% of businesses close within six months of a cyber attack?”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchCape Town, South AfricaHQ recorded Sep 20, 20261-105 contacts →

Exact match

“Cyber Offsec is an innovative offensive cybersecurity firm specializing in penetration testing, vulnerability management, and purple team operations.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 24 of 137 penetration testing companies based in South Africa

See the full list, filter by size, metro and specialty, and access 331 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Penetration testing companies based in South Africa at a glance

As of Sep 20, 2026
26.2%Verified-email coverage
9.2Average contacts per company
1-10Median size (employees)
23.4%Largest-city concentration · Johannesburg
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
83
11-50
45
51-200
7
501-1,000
1
1,001-5,000
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 137 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 “penetration testing companies” 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 331 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 September 20, 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 “penetration testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many penetration testing companies are there based in South Africa?

RevenueBase identified 137 company matches for penetration testing companies associated with South Africa as of September 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?

Cyber1 Solutions tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most penetration testing companies?

Johannesburg leads with 32 company records, followed by Cape Town (23) and Pretoria (14).

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 331 professional contacts with verified work emails tracked across these 137 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 September 20, 2026.

Ready to reach these companies? Verified emails and direct dials for all 137 penetration testing 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 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.