List of Companies Using KnowBe4
Prospecting companies using KnowBe4? Here they are, biggest first, including Opta Group, OverIT - Field Service Management and RXR. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$250M - $500M
560
$25M - $50M
560
$1.6B
$500M - $1B
560
$100M - $250M
560
$411M
$500M - $1B
560
$250M - $500M
559
$30M
$50M - $100M
559
$100M - $250M
559
$1M - $10M
558
$250M - $500M
558
$500M - $1B
558
$25M - $50M
558
$100M - $250M
557
$395M
$250M - $500M
557
$250M - $500M
557
$50M - $100M
557
$100M - $250M
557
$250M - $500M
556
$500M - $1B
556
$100M - $250M
556
$100M - $250M
555
$250M - $500M
555
$50M - $100M
554
$250M - $500M
554
$250M - $500M
554
$50M - $100M
554
$1B - $10B
554
$30M
$250M - $500M
553
$250M - $500M
553
$250M - $500M
553
$50M - $100M
553
$10B+
553
$500K
$100M - $250M
552
$500M - $1B
552
$100M - $250M
552
$100M - $250M
552
$25M - $50M
552
$25M - $50M
551
$250M - $500M
551
$10M - $25M
551
$100M - $250M
550
$1B - $10B
550
$250M - $500M
550
$100M - $250M
550
$250M - $500M
550
$31M
$100M - $250M
549
$500M - $1B
549
$250M - $500M
549
$10M - $25M
549
$100M - $250M
549
$5.6M
$1B - $10B
549
$50M - $100M
549
$50M - $100M
548
$1B - $10B
548
$50M - $100M
548
$10M - $25M
548
$500M - $1B
548
$502K
$500M - $1B
548
$13K
$250M - $500M
548
$100M - $250M
548
$1B - $10B
547
$250M - $500M
547
$250M - $500M
547
$50M - $100M
546
$100M - $250M
546
$102M
$100M - $250M
546
$500M - $1B
546
$1B - $10B
545
$100M - $250M
545
$100M - $250M
545
$500M - $1B
545
$25M - $50M
545
$1B - $10B
544
$50M - $100M
544
$500M - $1B
544
$25M - $50M
544
$50M - $100M
544
$500M - $1B
544
$101M
$500M - $1B
544
$1M - $10M
543
$50M - $100M
543
$10M - $25M
543
$1B - $10B
543
$250M - $500M
542
$50M - $100M
542
$100M - $250M
542
$250M - $500M
542
$250M - $500M
542
$100M - $250M
542
$149M
$25M - $50M
542
$14M
$250M - $500M
541
$10M - $25M
541
$100M - $250M
541
$1B - $10B
540
$250M - $500M
540
$288M
$250M - $500M
540
$100M - $250M
539
$50M - $100M
539
$134M
$250M - $500M
538
$100M - $250M
538
About companies using KnowBe4
Why target companies using KnowBe4?
KnowBe4 is a Security, identity & compliance technology. Companies running these tools already spend on identity, endpoint, email and consent security, which makes them mature buyers in the category. Companies on the list include Opta Group, OverIT - Field Service Management and RXR.
Which industries use KnowBe4 the most?
Among companies using KnowBe4 on LeadIQ, the most common industries are Financial Services, IT Services and IT Consulting, Software Development, Insurance, Construction and Hospitals and Health Care. Narrow your list to the industry you sell into from there.
Where are companies using KnowBe4 located?
Companies using KnowBe4 are most often headquartered in the United States, the United Kingdom, Canada, Australia, Germany and the Netherlands.
What other Security, identity & compliance technologies do companies use?
Prospecting the wider Security, identity & compliance space? Related technologies with their own company lists include Microsoft Active Directory, Cisco, Microsoft Entra ID and CookieYes.
How do I reach decision makers at companies using KnowBe4?
Open a company to see its employee directory and email format, then use LeadIQ to get verified work emails and phone numbers for the people you want to reach and push them straight to your CRM or sequencer.
Insights based on LeadIQ data refreshed in September 2026.
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Top companies by employee count
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