Companies Using KnowBe4

As of our August 2026 crawl, TechnologyChecker.io tracks 59,194 domains carrying a KnowBe4 verification record across 52,635 enriched company profiles. KnowBe4 ranks #1 of 17 technologies in Security Testing & Compliance with a 50.39% share. Before any of that is useful, one thing has to be said plainly about how it is measured.

What we are actually counting

KnowBe4 is detected by a single DNS signal: a Knowbe4-site-verification TXT record. An organisation adds that record once, during onboarding, to prove it controls the domain. Nothing removes it afterwards. It survives a cancelled contract, a migration to a competitor, and a change of security team — which is why our churn figure is 647 domains dropped against 59,194 active, barely 1%, when a JavaScript-based product of the same size would show ten to twenty times that.

"An MX record is live mail routing, so it corrects itself the day a company migrates. A TXT verification record is a receipt for something that happened once. Both are DNS, and they belong to completely different reliability classes." - Mehmet Suleyman, CEO at TechnologyChecker.io

The right reading is verified-domain footprint, not active seats. KnowBe4 itself reports over 70,000 customer organisations, so the two numbers are close enough to be reassuring, but they are not the same quantity.

Sales Signal: A KnowBe4 detection tells you an organisation formally onboarded at some point. It does not tell you the contract is current, which makes this list better for identifying security-mature accounts than for timing a renewal.

1. Why the category share is trustworthy here

Category shares are usually the weakest number on a technology page, because a vendor detected by fifteen signature clauses will always outrank a vendor detected by one. Security Testing & Compliance is the rare category where that objection does not apply: six of the eight largest technologies in it — KnowBe4, HaveIBeenPwned, Detectify, Wiz, AbuseIPDB, and SpyCloud — are all detected by exactly the same mechanism, a vendor-specific DNS TXT verification record. One instrument, applied identically to every vendor. KnowBe4's 50.39% against HaveIBeenPwned's 15.12% is a like-for-like comparison in a way most of our category rankings are not.

Sales Signal: This is the number to quote in a competitive deck, because the methodology objection has already been closed. It is also the number to be careful with elsewhere: the same category holds eNamad at 19.32%, an Iranian e-commerce trust seal that is detected by markup rather than DNS and does not belong in the same conversation.

2. Customer profile

KnowBe4 has the most mid-market-weighted customer base of any platform in our current refresh cycle. The largest band is 11-50 employees at 29.46%, then 51-200 at 24.78%, with micro-businesses of 1-10 at 24.7%. That last figure is the interesting one: self-serve SaaS products in our corpus typically run 55-62% micro-business, so KnowBe4 sits at less than half the usual rate. 494 organisations with 10,001+ employees carry the record, including Allianz, Stellantis, Michelin, Walgreens, Abbott, and Fresenius Medical Care. Financial Services (5.73%), Construction (4.64%), and Insurance (4.61%) lead the industry mix, with no vertical above 6%.

The age distribution reinforces the picture: 14.47% of enriched customers were founded before 1960, and another 14.96% in the 1990s. Old, regulated, liability-exposed institutions. Construction's presence is easy to misread as an outlier — it is almost certainly cyber-insurance requirements rather than voluntary adoption.

Sales Signal: Financial services firms with 11-200 employees are the highest-density KnowBe4 segment. They face regulatory and insurance pressure that makes training non-optional, and they rarely have a dedicated security team, which makes them receptive to adjacent compliance, penetration-testing, and incident-response offerings.

3. Industry and geographic concentration

The United States accounts for 55.87% of enriched customers, with the UK (7.24%) and Canada (5.70%) behind it. English-speaking countries represent over 72% of the base, reflecting both language-specific training content and KnowBe4's US go-to-market out of Tampa, Florida. European presence is scattered: Germany (3.73%), the Netherlands (2.52%), Switzerland (1.82%). Limited penetration in non-English markets suggests localisation gaps or strong regional competitors offering native-language content. The EU's NIS2 directive is the obvious catalyst that could change it.

Sales Signal: The 72% English-speaking concentration leaves continental Europe and Asia underserved. Vendors offering multilingual security awareness content have a genuinely open field in Germany, the Netherlands, and Switzerland, where regulatory pressure is rising faster than KnowBe4's footprint.

4. Why there is no migration section on this page

We ran the switching analysis and did not publish it. The reason is specific and, once seen, obvious: 99.1% of domains that have ever shown both KnowBe4 and HaveIBeenPwned still show both today. For Wiz the figure is 99%, for SpyCloud 99.1%, for Detectify 96.6%, for Vanta 97.9%. Nothing is switching. These are verification records that never expire, sitting side by side on the same corporate domains, and a handful of apparent "moves" between them are detection noise against a base of near-total coexistence. Publishing a corridor here would have invented a market that does not exist.

Sales Signal: The coexistence itself is the insight. A domain carrying KnowBe4 plus Wiz plus HaveIBeenPwned is a security-mature account with budget and an existing habit of buying point solutions — a far better qualification signal than any single detection.

5. Technology ecosystem

The stack data shows near-total Microsoft alignment: Microsoft 365 appears on 55.05% of KnowBe4 domains against Google Workspace on 7.87%. That 7:1 split is worth pausing on, because across the corpus as a whole those two products are a near dead heat — Microsoft 365 at 45.31% of business email against Google Workspace's 43.80%. KnowBe4's base is far more Microsoft-weighted than the market it sells into. On the security layer, the common companions are dedicated email gateways: Mimecast (10.07%), Proofpoint (6.5%), Barracuda (4.25%), Sophos (1.88%). Organisations buying phishing simulation are also buying phishing filtering.

Sales Signal: The Microsoft 365 overlap is a precise targeting filter. Organisations running Microsoft 365 in a regulated industry with no KnowBe4 record are the closest thing to a qualified list this dataset produces.

6. G2 review signals

Cross-referencing our crawl with G2 reviews shows adoption patterns and sentiment lining up. Automated training and full-featured platform (144 mentions) leads the positives, which tracks with a customer base where most organisations have fewer than 200 staff and no dedicated security team — they need turnkey. User-friendly interface (139 mentions) reinforces the ease-of-deployment story. The top concern is phishing issues (37 mentions), and repetitive or simplistic modules (33 mentions) points to a content-freshness gap competitors could exploit. The 3.1:1 positive-to-negative ratio indicates strong satisfaction overall.

Sales Signal: Content repetitiveness is the one durable competitive angle in the review data. It is a complaint about the product's core deliverable, not its packaging.

Key takeaways

1. Market position: #1 of 17 in Security Testing & Compliance at 50.39%, and unusually defensible because six of the top eight are measured by the same DNS mechanism.
2. What the number means: Verified domains, not active seats. The TXT record outlives the contract, so treat 59,194 as an upper bound on live deployments.
3. Core archetype: A US or UK organisation of 11-200 employees in a regulated or insurance-exposed sector, running Microsoft 365, often founded decades before the internet.
4. Microsoft alignment is both strength and risk: 55.05% on Microsoft 365 creates integration value and exposure if Microsoft expands native awareness training.
5. The category is a stack, not a bake-off: 99% coexistence with Wiz, SpyCloud, and HaveIBeenPwned means these vendors are bought together, not chosen between.

Sales applications

Outreach template: "I noticed your organisation has KnowBe4 deployed alongside Microsoft 365. Companies in [financial services/insurance/construction] running phishing simulation for 2+ years typically start asking for [advanced threat intelligence/incident response/compliance reporting]. We help KnowBe4 customers like [similar company] extend human risk management past the training modules."

Targeting strategy: Filter TechnologyChecker.io for KnowBe4 domains by industry (Financial Services 5.73%, Insurance 4.61%), size (11-200 employees), and paired technology (Microsoft 365 at 55.05%). Prioritise US-based organisations, which are 55.87% of the base.

Competitive angle: Position against the content-repetitiveness complaint (33 G2 mentions). For Microsoft-heavy organisations, pitch native integration. Do not pitch against Wiz, Vanta, or SpyCloud from our data — the coexistence rates show buyers run them together rather than choosing between them.

Explore the full dataset of 59,194 KnowBe4 domains with 52,635 enriched company profiles at TechnologyChecker.io — filter by industry, company size, geography, and tech stack to build targeted prospecting lists.