Company lists · Data refreshed September 2026

Top 24 Critical infrastructure security consulting companies based in South Africa

RevenueBase identified 239 company matches for critical infrastructure security consulting companies associated with South Africa as of September 2026 and tracks 4,014 professional contacts across them, including 626 with verified work emails. Johannesburg is the largest hub.

This list covers company matches for critical infrastructure security consulting 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 27, 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 27, 2026 How this list was built
239Companies
4,014Contacts tracked
626Verified emails
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The 24 largest critical infrastructure security consulting companies based in South Africa

Ranked by team size
Top 24 of 239 company matches for critical infrastructure security consulting companies based in South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 Sep 27, 202610001+1,340 contacts →

Exact match

“At Imvula Quality Protection, we don’t just provide security, we create peace of mind.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchDurban, South AfricaHQ recorded Sep 27, 20265,001-10,000432 contacts →

Exact match

“Enforce Security is one of South Africa’s most trusted specialist in the provision of integrated risk management solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchCape Town, South AfricaHQ recorded Sep 27, 2026501-1,000225 contacts →

Exact match

“Xone Security is a leading provider of risk, safety and security solutions to medium and large enterprises.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchJohannesburg, South AfricaHQ recorded Sep 27, 2026201-500160 contacts →

Exact match

“We provide a protective service that is sophisticated, professional, reliable and discreet.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchJohannesburg, South AfricaHQ recorded Sep 27, 202651-200130 contacts →

Exact match

“Welcome back to the future, MWR CyberSec!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchPretoria, South AfricaHQ recorded Sep 27, 202651-200124 contacts →

Exact match

“Online Intelligence strives to become the global leader and industry norm in Enterprise Risk Solutions, ultimately contributing towards safer communities and assurance.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchJohannesburg, South AfricaHQ recorded Sep 27, 202611-5063 contacts →

Exact match

“GRIPP Advisory provides boutique advisory and consulting services to its clients.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchJohannesburg, South AfricaHQ recorded Sep 27, 202651-20062 contacts →

Exact match

“AVeS Cyber Security forms part of the AVeS Cyber International group of companies.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchCenturion, South AfricaHQ recorded Sep 27, 2026501-1,00062 contacts →

Exact match

“Vusela Risk Services specializes in the provision of intelligence-driven risk management services to multinational companies, Government, Parastatals, financial institutions and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchRosebank, South AfricaHQ recorded Sep 27, 202651-20056 contacts →

Exact match

“At Mobius, we believe organisations cannot accelerate their digital journey without trust.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchBryanston, South AfricaHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
12Exact matchMidrand, South AfricaHQ recorded Sep 27, 202651-20025 contacts →

Exact match

“BT-SA is a leading IT and security infrastructure specialis, offering end-to-end data network, communications, electrical and security solutions to businesses in southern Africa.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchSandton, South AfricaHQ recorded Sep 27, 202611-5023 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchRandburg, South AfricaHQ recorded Sep 27, 2026201-50021 contacts →

Exact match

“Systems Control Integration SA was established by the managing members whom brought with them over 18 years of experience by working in the private and governmental security…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchJohannesburg, South AfricaHQ recorded Sep 27, 202611-5019 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchSprings, South AfricaHQ recorded Sep 27, 202651-20019 contacts →

Exact match

“Prosafe Security | Integrated Risk Mitigation Specialists Protecting the Highveld’s Commercial, Industrial, and Mining Sectors through Engineered Security Solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchMidrand, South AfricaHQ recorded Sep 27, 20261-1017 contacts →

Exact match

“Technology is at the core of every business in today's digitally connected world.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchMidrand, South AfricaHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
19Exact matchCape Town, South AfricaHQ recorded Sep 27, 202611-5017 contacts →

Exact match

“ChaseWaterford is an international fraud and risk management consultancy focused on providing services to government and industry.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchJohannesburg, South AfricaHQ recorded Sep 27, 202651-20017 contacts →

Exact match

“Canyon Protection Services are a dedicated team of professionals ready to protect you, your business and your way of life.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchSandton, South AfricaHQ recorded Sep 27, 202651-20016 contacts →

Exact match

“The Open Water Group of companies was established to create a unique risk focused group to service the requirements of organizations who experience new and unforeseen challenges…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchSandton, South AfricaHQ recorded Sep 27, 20261-1016 contacts →

Exact match

“Formerly Alpha Wireless, Alpha Secure Networks provides superior service in IT Security, Networks, Disaster Recovery, Cloud and Supply, Installation and Support of Hardware &…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchJohannesburg, South AfricaHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
24Exact matchCape Town, South AfricaHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase

Showing 24 of 239 critical infrastructure security consulting companies based in South Africa

See the full list, filter by size, metro and specialty, and access 626 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Critical infrastructure security consulting companies based in South Africa at a glance

As of Sep 27, 2026
15.6%Verified-email coverage
16.8Average contacts per company
1-10Median size (employees)
24.3%Largest-city concentration · Johannesburg
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
124
11-50
70
51-200
30
201-500
7
501-1,000
5
1,001-5,000
1
5,001-10,000
1
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 239 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 “critical infrastructure security consulting 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 626 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 27, 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 “critical infrastructure security consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many critical infrastructure security consulting companies are there based in South Africa?

RevenueBase identified 239 company matches for critical infrastructure security consulting 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?

Imvula Quality Protection tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most critical infrastructure security consulting companies?

Johannesburg leads with 58 company records, followed by Cape Town (37) and Sandton (16).

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 626 professional contacts with verified work emails tracked across these 239 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 27, 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.