Company lists · Data refreshed September 2026
Top 23 Security research firms based in South Africa
RevenueBase identified 76 security research firms headquartered in South Africa as of September 2026 and tracks 426 professional contacts across them, including 147 with verified work emails and 17 with mobile numbers. Johannesburg is the largest hub.
This list covers security research firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 6, 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.
The 23 largest security research firms based in South Africa
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 52 | ||||
“At ESET Southern Africa, we specialise in advanced cybersecurity solutions designed to safeguard businesses and individuals against ever-evolving threats.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 35 | ||||
“Redshift is a South African cyber security advisory company assisting our customers with assessing their cyber security posture, determining risk exposure and building robust…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Thinkst Applied ResearchStrong evidence | 31 | |||
“Thinkst is an Applied Research company with a deep focus on information security.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 23 | ||||
“Founded by highly experienced cyber security specialists in 2012.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 19 | ||||
“SecureConekt provides various Information Security services to a wide range of industries.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 17 | ||||
“Clyrofor is a South African #Cybersecurity company that is founded on the principles of empowerment and innovation.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 15 | ||||
“TechEx Digital Solutions is a leading cyber technology firm specialising in providing robust solutions to safeguard small, medium and large organisations from digital threats.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 14 | ||||
“Whirly Labs (Pty) Ltd is a security consultancy based in Cape Town, South Africa.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 14 | ||||
“Telspace Africa was established in 2002 by CEO Dino Covotsos, who is still Chairman of the Board.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 9 | ||||
“Cybersecurity for SMEs That Can’t Afford Downtime.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 8 | ||||
“Welcome to CyberStack, a next-generation professional services company dedicated to reducing our clients' cyber security expenditures while enhancing their business value.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 | ||||
“Did you know 60% of businesses close within six months of a cyber attack?” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 | ||||
“Tacticom International provides innovate and specialised Protection Services, striving to be the first choice for any individual or organization seeking solutions to…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5 | ||||
“Beyond Cyber is a cybersecurity trailblazer, dedicated to safeguarding your success.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 | ||||
“Founded in 2008, we are committed to helping organizations identify and mitigate cyber threats, safeguard sensitive information, and maintain regulatory compliance.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 | ||||
“Part time - Training for graduates” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 | ||||
“Seraph Cyber Security is a South African company specializing in providing cyber security advice and protection to organizations through risk, vulnerability and gap assessments.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 | ||||
“Kernel Afrika is an IT security, TSCM, development, and forensic software company responding with a unique solution to each.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1 | ||||
“Afritech Computing is a specialist penetration testing and vulnerability assessment firm focused exclusively on independent security testing for regulated and compliance-driven…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Vision CatcherPartial evidence | 1 | |||
“I help businesses and industries solve their electronic security & surveillance problems by providing you with over 40 years of risk management experience.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 | ||||
“Cyres is a leading provider of innovative cybersecurity solutions designed to protect businesses of all sizes from the ever-evolving threat landscape.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Spear Security Analysis ConsultingPartial evidence | 1 | |||
“At Spear Security Analysis Consulting, our approach goes beyond traditional security audits.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 | ||||
“At rebyC, we are dedicated to providing our clients with the highest level of cybersecurity protection and support.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 23 of 76 security research firms based in South Africa
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Security research firms based in South Africa at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
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 security research firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “security research firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among security research firms, 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 an evidence 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, 147 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 6, 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
How many security research firms are there based in South Africa?
RevenueBase identified 76 security research firms 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?
Eset Southern Africa, headquartered in Cape Town, tops this list with the largest team on record.
Which city has the most security research firms?
Johannesburg leads with 15 headquartered companies, followed by Cape Town (13) and Pretoria (12).
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 147 verified decision-maker contacts tracked across these 76 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 6, 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.
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