Company lists · Data verified August 2026

Top 25 Cybersecurity threat detection companies based in South Africa

There are 88 cybersecurity threat detection companies headquartered in South Africa (RevenueBase, August 2026). RevenueBase tracks 3,111 professional contacts across them, including 1,707 with verified work emails and 666 with mobile numbers. Johannesburg is the largest hub.

This list covers cybersecurity threat detection companies headquartered in South Africa, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

88Companies
3,111Contacts tracked
1,707Verified emails
666Mobile numbers
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The 25 largest cybersecurity threat detection companies based in South Africa

Ranked by team size
Top 25 of 88 cybersecurity threat detection companies based in South Africa, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#CompanyHQEmployeesContactsVerified emails
1MimecastCape Town South Africa1,001-5,0002,3481,437
2Snode TechnologiesCenturion51-2007749
3Dataproof CommunicationsSandtonn/a4715
4Armata Cyber SecurityJohannesburg51-2003925
5CyberantixMidrand11-503617
6Redshift Cyber Security PTY LTDBryanston11-503528
7Bitcrack Cyber SecuritySandton Johannesburg11-502516
8MRB Secure PTY LTD RFFourways11-502013
9Maidar SecureBryanston51-200205
10Cyber83Pretoria11-501910
11CyberreyJohannesburg11-50193
12Risk X GroupCape Town11-501713
13Clyrofor SAMidrand11-50173
14Silent Guardian PTY LTDPretoria11-50168
15Reportstar TechnologiesJohannesburg11-50167
16MAGIXSandton11-50165
17Techex Digital SolutionsHeadquarters11-50158
18Telspace AfricaJohannesburg11-50152
19Prima SecureJohannesburg11-50143
20Secured EnterpriseUmhlanga51-200123
21BluevisionJhb11-50111
22NAVICSomerset West11-5065
23Cyber InsightCape Town1-1064
24Cyberspace Protection PTY LTDDurban1-1063
25ConnectprotectDurban11-5042

Showing 25 of 88 cybersecurity threat detection companies based in South Africa

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Cybersecurity threat detection companies based in South Africa at a glance

As of Aug 28, 2026
11-50Median size (employees)
JohannesburgLargest hub · 23 HQs
666Contacts with mobile numbers
1Emails re-verified in last 30 days

Companies by employee count

1-10
41
11-50
33
51-200
11
201-500
2
1,001-5,000
1

Cybersecurity threat detection companies by metro

MetroCompanies
Cybersecurity threat detection companies in Johannesburg23
Cybersecurity threat detection companies in Cape Town11
Cybersecurity threat detection companies in Pretoria7
Cybersecurity threat detection companies in Bryanston7
Cybersecurity threat detection companies in Midrand6
Cybersecurity threat detection companies in Sandton6
Cybersecurity threat detection companies in Centurion3

How this list was built

Source
The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion
Companies whose own business descriptions match “cybersecurity threat detection companies”, with match quality audited by blind human judging, and headquartered in South Africa.
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
Contact records re-verify on a rolling cadence; 1 contacts on this list were re-verified in the last 30 days.
Refresh
Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cybersecurity threat detection companies are there based in South Africa?

There are 88 cybersecurity threat detection companies headquartered in South Africa as of August 2026 (RevenueBase).

What is the largest company on this list?

Mimecast, headquartered in Cape Town South Africa, tops this list with the largest team on record.

Which city has the most cybersecurity threat detection companies?

Johannesburg leads with 23 headquartered companies, followed by Cape Town (11) and Pretoria (7).

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 1,707 verified decision-maker contacts tracked across these 88 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.