Company lists · Data refreshed September 2026

Top 22 Insider threat consulting firms based in South Africa

RevenueBase identified 92 insider threat consulting firms headquartered in South Africa as of September 2026 and tracks 435 professional contacts across them, including 122 with verified work emails. Johannesburg is the largest hub.

This list covers insider threat consulting 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
92Companies
435Contacts tracked
122Verified emails
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The 22 largest insider threat consulting firms based in South Africa

Ranked by team size
Top 22 of 92 insider threat consulting firms based in South Africa, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to insider threat consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBryanston, South AfricaHQ checked Sep 28, 202611-5035 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceSandton, South AfricaHQ checked Sep 28, 202611-5023 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceSandton, South AfricaHQ checked Sep 28, 202651-20016 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceJohannesburg, South AfricaHQ checked Sep 28, 20261-1014 contacts →

Indirect evidence

“Welcome to SIFTCON Forensic Services – your trusted partner in expert forensic solutions, cybersecurity assessments, data analytics, and risk management strategies.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceCape Town, South AfricaHQ checked Sep 28, 202611-5014 contacts →

Indirect evidence

“Whirly Labs (Pty) Ltd is a security consultancy based in Cape Town, South Africa.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceJohannesburg, South AfricaHQ checked Sep 28, 202611-5011 contacts →

Indirect evidence

“Arcangel is an intelligence-driven protection and risk management company safeguarding people, assets, operations, and reputations in complex risk environments.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceJohannesburg, South AfricaHQ checked Sep 28, 20261-109 contacts →

Indirect evidence

“Cybersecurity for SMEs That Can’t Afford Downtime.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceJohannesburg, South AfricaHQ checked Sep 28, 202611-509 contacts →

Partial evidence

“SS-Consulting is a consulting firm that provides customised on-site consulting services and assistance in the assessment of business risks, key business requirements for data…”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceMogale City, South AfricaHQ checked Sep 28, 202611-508 contacts →

Indirect evidence

“Welcome to CyberStack, a next-generation professional services company dedicated to reducing our clients' cyber security expenditures while enhancing their business value.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceCenturion, South AfricaHQ checked Sep 28, 202611-508 contacts →

Indirect evidence

“Founded from humble beginnings in 2012,our company has grown from strength to strength.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceCape Town, South AfricaHQ checked Sep 28, 20261-107 contacts →

Indirect evidence

“Information Security Expertise for small, medium and large enterprises.”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceCity Of Tshwane, South AfricaHQ checked Sep 28, 20261-105 contacts →

Partial evidence

“J Brew Solutions is a beacon of expertise in the dynamic landscape of IT Consulting and Cybersecurity Solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidencePretoria, South AfricaHQ checked Sep 28, 202611-505 contacts →

Indirect evidence

“Beyond Cyber is a cybersecurity trailblazer, dedicated to safeguarding your success.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceJohannesburg, South AfricaHQ checked Sep 28, 202611-504 contacts →

Partial evidence

“An independent security risk consulting firm, specialising in security risk management; providing clients with industry leading, sustainable and reliable solutions, regardless of…”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceCape Town, South AfricaHQ checked Sep 28, 20261-103 contacts →

Partial evidence

“Founded in 2008, we are committed to helping organizations identify and mitigate cyber threats, safeguard sensitive information, and maintain regulatory compliance.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceCape Town, South AfricaHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“Kalahari Security provides security and privacy advisory services for companies and their boards.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceCenturion, South AfricaHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“Part time - Training for graduates”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidencePinelands, South AfricaHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceSandton, South AfricaHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Kernel Afrika is an IT security, TSCM, development, and forensic software company responding with a unique solution to each.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceCape Town, South AfricaHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“360 Cyber Security Consulting follows a logical, structured approach, delivering tangible benefit to your business.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceKraaifontein, South AfricaHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“CX Consulting was established in 2020 by Pieter vd Walt.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceBallito, South AfricaHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“At Spear Security Analysis Consulting, our approach goes beyond traditional security audits.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 22 of 92 insider threat consulting firms based in South Africa

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Insider threat consulting firms based in South Africa at a glance

As of Sep 28, 2026
28.0%Verified-email coverage
4.7Average contacts per company
1-10Median size (employees)
23.9%Largest-city concentration · Johannesburg
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
52
11-50
28
51-200
9
201-500
1
501-1,000
2

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 92 companies.

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 insider threat consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “insider threat consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names insider threat consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among insider threat consulting 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 its RevenueBase Smart Search 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, 122 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 28, 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

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names insider threat consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many insider threat consulting firms are there based in South Africa?

RevenueBase identified 92 insider threat consulting 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?

Integrity360 WAS Redshift Cyber Security, headquartered in Bryanston, tops this list with the largest team on record.

Which city has the most insider threat consulting firms?

Johannesburg leads with 22 headquartered companies, followed by Cape Town (15) 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 122 verified decision-maker contacts tracked across these 92 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 28, 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 Smart Search, 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.