Company lists · Data verified August 2026
Top 25 Cybersecurity incident response firms based in South Africa
There are 112 cybersecurity incident response firms headquartered in South Africa (RevenueBase, August 2026). RevenueBase tracks 1,487 professional contacts across them, including 688 with verified work emails and 68 with mobile numbers. Cape Town is the largest hub.
This list covers cybersecurity incident response firms 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.
The 25 largest cybersecurity incident response firms based in South Africa
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 | 223 | |
| 2 | 103 | |
| 3 | 33 | |
| 4 | 27 | |
| 5 | 15 | |
| 6 | 28 | |
| 7 | 17 | |
| 8 | 28 | |
| 9 | Dotcom Cybersecurity | 17 |
| 10 | 12 | |
| 11 | 20 | |
| 12 | 16 | |
| 13 | 15 | |
| 14 | 11 | |
| 15 | 5 | |
| 16 | 13 | |
| 17 | 3 | |
| 18 | 8 | |
| 19 | 5 | |
| 20 | 8 | |
| 21 | 7 | |
| 22 | 4 | |
| 23 | 3 | |
| 24 | 1 | |
| 25 | 4 |
Showing 25 of 112 cybersecurity incident response firms based in South Africa
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Cybersecurity incident response firms based in South Africa at a glance
As of Aug 28, 2026Companies by employee count
Cybersecurity incident response firms by metro
| Metro | Companies |
|---|---|
| Cybersecurity incident response firms in Cape Town | 23 |
| Cybersecurity incident response firms in Johannesburg | 21 |
| Cybersecurity incident response firms in Pretoria | 11 |
| Cybersecurity incident response firms in Centurion | 7 |
| Cybersecurity incident response firms in Sandton | 7 |
| Cybersecurity incident response firms in City Of Tshwane | 5 |
| Cybersecurity incident response firms in Midrand | 5 |
| Cybersecurity incident response firms in Bryanston | 5 |
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 incident response firms”, 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 incident response firms are there based in South Africa?
There are 112 cybersecurity incident response firms headquartered in South Africa as of August 2026 (RevenueBase).
What is the largest company on this list?
S-Rm, headquartered in Cape Town, tops this list with the largest team on record.
Which city has the most cybersecurity incident response firms?
Cape Town leads with 23 headquartered companies, followed by Johannesburg (21) and Pretoria (11).
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 688 verified decision-maker contacts tracked across these 112 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.
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