Company lists · Data verified August 2026

Top 25 Cybersecurity risk assessment firms based in South Africa

Name: Cybersecurity risk assessment firms based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 199 companies tracked

There are 199 cybersecurity risk assessment firms headquartered in South Africa (RevenueBase, August 2026). RevenueBase tracks 4,240 professional contacts across them, including 2,106 with verified work emails and 729 with mobile numbers. Johannesburg is the largest hub.

This list covers cybersecurity risk assessment 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.

199Companies

4,240Contacts tracked

2,106Verified emails

729Mobile numbers

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The 25 largest cybersecurity risk assessment firms based in South Africa

Ranked by team size

Top 25 of 199 cybersecurity risk assessment firms based in South Africa, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Mimecast	Cape Town South Africa	1,001-5,000	2,348	1,437
2	Cyber1 Solutions	Sandton	51-200	235	24
3	Performanta	Cape Town	51-200	153	103
4	Online Intelligence PTY LTD	Pretoria	51-200	126	64
5	MWR Cybersec	Edenburg	51-200	123	33
6	SECON	Durban	11-50	122	27
7	Mobius Consulting South Africa	Rosebank	51-200	57	31
8	Iguardsa	Johannesburg	51-200	46	28
9	Armata Cyber Security	Johannesburg	51-200	39	25
10	Cyberantix	Midrand	11-50	36	17
11	Redshift Cyber Security PTY LTD	Bryanston	11-50	35	28
12	Dotcom Cybersecurity	Centurion	11-50	30	17
13	Scarybyte	Johannesburg	11-50	28	12
14	Bitcrack Cyber Security	Sandton Johannesburg	11-50	25	16
15	Wolfpack Information Risk	Blackheath	11-50	24	15
16	MRB Secure PTY LTD RF	Fourways	11-50	20	13
17	Secureconekt	Johannesburg	11-50	20	12
18	Neworder	City Of Tshwane	11-50	20	11
19	Cyber83	Pretoria	11-50	19	10
20	Risk X Group	Cape Town	11-50	17	13
21	Clyrofor SA	Midrand	11-50	17	3
22	Silent Guardian PTY LTD	Pretoria	11-50	16	8
23	Open Water Advanced Risk Solutions	Sandton	51-200	16	6
24	MAGIX	Sandton	11-50	16	5
25	Techex Digital Solutions	Headquarters	11-50	15	8

Showing 25 of 199 cybersecurity risk assessment firms based in South Africa

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Cybersecurity risk assessment firms based in South Africa at a glance

As of Aug 28, 2026

1-10Median size (employees)

JohannesburgLargest hub · 42 HQs

729Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

115

11-50

51-200

1,001-5,000

Cybersecurity risk assessment firms by metro

Metro	Companies
Cybersecurity risk assessment firms in Johannesburg	42
Cybersecurity risk assessment firms in Cape Town	39
Cybersecurity risk assessment firms in Pretoria	16
Cybersecurity risk assessment firms in Midrand	12
Cybersecurity risk assessment firms in Sandton	12
Cybersecurity risk assessment firms in Centurion	9
Cybersecurity risk assessment firms in Bryanston	9

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 risk assessment 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 risk assessment firms are there based in South Africa?

There are 199 cybersecurity risk assessment firms 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 risk assessment firms?

Johannesburg leads with 42 headquartered companies, followed by Cape Town (39) and Pretoria (16).

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 2,106 verified decision-maker contacts tracked across these 199 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.