cybersecdirectory

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
CompanyBased inFoundedSizeOwnershipRevenue
Infoblox

Infoblox provides networking and security software for DNS, DHCP and IP address management.

Santa Clara, United StatesPrivate
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 Republic2016Private
BlueCat Networks

Policy driven DNS security and threat protection through BlueCat Edge, alongside DNS, DHCP and IP address management and network observability software.

Toronto, CanadaPrivate
DNSFilter

DNSFilter provides DNS filtering and threat blocking services for organisations.

Washington, United States2015Private
EfficientIP

EfficientIP provides DNS, DHCP and IP address management software for network automation and security.

La Garenne Colombes, France2004Owned by Francisco Partners
VeloGuardian

VeloGuardian provides a WireGuard-based VPN with DNS filtering and gateway appliances for homes and small businesses.

Tallinn, Estonia2025Private

Also active in DNS security

10 companies
CompanyBased inFoundedSizeOwnershipRevenue
Palo Alto Networks

Palo Alto Networks provides cybersecurity platforms and services to protect organizations from cyber threats.

Santa Clara, United States200513,900 staffPublic, PANW$11.5bn (FY2026)
F5

F5 provides application delivery and security solutions for hybrid multicloud environments.

Seattle, United States1996Public, FFIV$3.1bn (FY2025)
Cloudflare

Cloudflare provides a global network for security, performance, and full-stack development.

San Francisco, United States20092,440 staffPublic, NET$2.2bn (FY2025)
Allot

Allot provides network intelligence and security solutions for service providers and enterprises.

Hod Hasharon, IsraelPublic, ALLT$102.0m (FY2025)
iboss

iboss provides security for AI, data, and applications through a unified SASE platform.

Boston, United States2003375 staffPrivate
DomainTools

DomainTools provides DNS-focused threat intelligence and domain security data to detect and mitigate malicious domains.

Seattle, United StatesPrivate
Link11

Link11 provides DDoS protection and web application security services for companies.

Frankfurt am Main, GermanyPrivate
PowerDMARC

PowerDMARC provides a cloud-based platform for email authentication and domain security.

Plano, United States2020Private
Twingate

Twingate provides identity-based access to private resources, replacing traditional VPNs for remote work.

Redwood City, United States2019Private
EasyDMARC

Provides a platform for managing email authentication, DNS and threat intelligence to protect domains from spoofing.

Dover, United StatesPrivate

Recent deals in DNS security

All DNS security deals
DateDealAmountSource
1 Sept 2026Palo Alto Networks acquired ConsoleSource for Palo Alto Networks buying Console, opens in a new tabUndisclosedSource for Palo Alto Networks buying Console, opens in a new tab
July 2026Infoblox acquired KentikSource for Infoblox buying Kentik, opens in a new tabUndisclosedSource for Infoblox buying Kentik, opens in a new tab
June 2026Francisco Partners acquired EfficientIPSource for Francisco Partners buying EfficientIP, opens in a new tabUndisclosedSource for Francisco Partners buying EfficientIP, opens in a new tab
January 2026Infoblox acquired AxurSource for Infoblox buying Axur, opens in a new tabUndisclosedSource for Infoblox buying Axur, opens in a new tab
April 2025DNSFilter acquired ZorusSource for DNSFilter buying Zorus, opens in a new tabUndisclosedSource for DNSFilter buying Zorus, opens in a new tab
April 2025Cloudflare acquired OuterbaseSource for Cloudflare buying Outerbase, opens in a new tabUndisclosedSource for Cloudflare buying Outerbase, opens in a new tab
October 2024Cloudflare acquired KiveraSource for Cloudflare buying Kivera, opens in a new tabUndisclosedSource for Cloudflare buying Kivera, opens in a new tab
May 2024Cloudflare acquired BastionZeroSource for Cloudflare buying BastionZero, opens in a new tabUndisclosedSource for Cloudflare buying BastionZero, opens in a new tab
April 2024Cloudflare acquired BaselimeSource for Cloudflare buying Baselime, opens in a new tabUndisclosedSource for Cloudflare buying Baselime, opens in a new tab
March 2024Cloudflare acquired Nefeli NetworksSource for Cloudflare buying Nefeli Networks, opens in a new tabUndisclosedSource for Cloudflare buying Nefeli Networks, opens in a new tab

Acquisitions 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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Often listed alongside DNS security