DNS security vendors
We list 16 companies active in DNS security, and 6 of them have it as their main focus. 4 are public, 1 is owned by another company and 11 are private. Most are based in the United States (10). The oldest, F5, was founded in 1996. By revenue from annual reports, the largest company here is Palo Alto Networks ($11.5bn in FY2026).
By countryUnited States 10
Companies focused on DNS security
6 companies| Company | Based in | Founded | Size | Ownership | Revenue |
|---|---|---|---|---|---|
Infoblox Infoblox provides networking and security software for DNS, DHCP and IP address management. | Santa Clara, United States | Private | |||
Whalebone Whalebone develops security products that work at the network level, so they do not need to be installed or updated on individual devices. | Brno, Czech Republic | 2016 | Private | ||
BlueCat Networks Policy driven DNS security and threat protection through BlueCat Edge, alongside DNS, DHCP and IP address management and network observability software. | Toronto, Canada | Private | |||
DNSFilter DNSFilter provides DNS filtering and threat blocking services for organisations. | Washington, United States | 2015 | Private | ||
EfficientIP EfficientIP provides DNS, DHCP and IP address management software for network automation and security. | La Garenne Colombes, France | 2004 | Owned by Francisco Partners | ||
VeloGuardian VeloGuardian provides a WireGuard-based VPN with DNS filtering and gateway appliances for homes and small businesses. | Tallinn, Estonia | 2025 | Private |
Also active in DNS security
10 companies| Company | Based in | Founded | Size | Ownership | Revenue |
|---|---|---|---|---|---|
Palo Alto Networks Palo Alto Networks provides cybersecurity platforms and services to protect organizations from cyber threats. | Santa Clara, United States | 2005 | 13,900 staff | Public, PANW | $11.5bn (FY2026) |
F5 F5 provides application delivery and security solutions for hybrid multicloud environments. | Seattle, United States | 1996 | Public, FFIV | $3.1bn (FY2025) | |
Cloudflare Cloudflare provides a global network for security, performance, and full-stack development. | San Francisco, United States | 2009 | 2,440 staff | Public, NET | $2.2bn (FY2025) |
Allot Allot provides network intelligence and security solutions for service providers and enterprises. | Hod Hasharon, Israel | Public, ALLT | $102.0m (FY2025) | ||
iboss iboss provides security for AI, data, and applications through a unified SASE platform. | Boston, United States | 2003 | 375 staff | Private | |
DomainTools DomainTools provides DNS-focused threat intelligence and domain security data to detect and mitigate malicious domains. | Seattle, United States | Private | |||
Link11 Link11 provides DDoS protection and web application security services for companies. | Frankfurt am Main, Germany | Private | |||
PowerDMARC PowerDMARC provides a cloud-based platform for email authentication and domain security. | Plano, United States | 2020 | Private | ||
Twingate Twingate provides identity-based access to private resources, replacing traditional VPNs for remote work. | Redwood City, United States | 2019 | Private | ||
EasyDMARC Provides a platform for managing email authentication, DNS and threat intelligence to protect domains from spoofing. | Dover, United States | Private |
Recent deals in DNS security
All DNS security dealsAcquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Amounts are in US dollars.
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