cybersecdirectory

DMARC providers

We list 18 companies active in DMARC and email authentication, and 10 of them have it as their main focus. 5 are owned by another company and 13 are private. Most are based in the United States (9) and the United Kingdom (5). The oldest, Mailprotector, was founded in 2000.

By countryUnited States 9

Companies focused on DMARC and email authentication

10 companies
CompanyBased inFoundedSizeOwnership
dmarcian

dmarcian provides DMARC email authentication services and tools to protect domains from phishing and abuse.

Brevard, United States2012Private
PowerDMARC

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

Plano, United States2020Private
Red Sift

Red Sift provides email, domain and web security services to help organisations implement security protocols.

London, United KingdomPrivate
Report URI

Report URI is a client-side security platform that monitors and controls what runs in users' browsers.

Clitheroe, United Kingdom2017Private
SecLens.ONE

SecLens provides free email security assessments by checking seven DNS-based protocols and offering remediation advice.

Singapore, SingaporePrivate
Sendmarc

Sendmarc provides a platform for managing DMARC, SPF, and DKIM email authentication.

Wilmington, United StatesPrivate
Suped

Suped is an Australian company that sells a DMARC platform for IT teams.

Sydney, Australia2025Private
Valimail

Valimail provides automated DMARC and email authentication services to stop phishing and domain impersonation.

Boulder, United States2015Part of DigiCert
DMARCSwiss

Provides Swiss-hosted DMARC monitoring and aggregate report processing for email authentication.

Plan-les-Ouates, Geneva, SwitzerlandPrivate
EasyDMARC

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

Dover, United StatesPrivate

Also active in DMARC and email authentication

8 companies
CompanyBased inFoundedSizeOwnership
Egress Software Technologies Ltd

Egress provides cloud email security that uses adaptive controls to stop phishing and data loss.

London, United Kingdom2007Part of KnowBe4
Hornetsecurity Ltd.

Hornetsecurity provides Microsoft 365 security, backup, and compliance services for managed service providers.

Hanover, Germany2007Part of Proofpoint
IRONSCALES

Provides AI-driven email security to stop phishing, business email compromise, and deepfake attacks.

Atlanta, United States2014Private
Mailprotector

Provides email security products for managed service providers, including filtering, encryption and DMARC tools.

Greenville, United States2000Private
Mimecast

Mimecast provides email security and human risk management services for organisations.

London, United Kingdom2003Owned by Permira
Netcraft

Netcraft detects, disrupts and takes down phishing, fraud and other cybercrime threats for brands.

London, United KingdomPrivate
Paubox

Paubox provides HIPAA compliant email and security services for healthcare organisations.

San Francisco, United States2014Private
Proofpoint

Proofpoint provides cybersecurity solutions to protect people, data, and AI across email, cloud, and collaboration tools.

Sunnyvale, United States2002Owned by Thoma Bravo

Recent deals in DMARC and email authentication

All DMARC and email authentication deals
DateDealAmountSource
16 Oct 2026Proofpoint acquired VaronisSource for Proofpoint buying Varonis, opens in a new tab$6.3bnSource for Proofpoint buying Varonis, opens in a new tab
15 Oct 2026Proofpoint acquired VaronisSource for Proofpoint buying Varonis, opens in a new tab$6.3bnSource for Proofpoint buying Varonis, opens in a new tab
February 2026Proofpoint acquired AcuvitySource for Proofpoint buying Acuvity, opens in a new tabUndisclosedSource for Proofpoint buying Acuvity, opens in a new tab
September 2025DigiCert acquired ValimailSource for DigiCert buying Valimail, opens in a new tabUndisclosedSource for DigiCert buying Valimail, opens in a new tab
May 2025Proofpoint acquired Hornetsecurity Ltd.Source for Proofpoint buying Hornetsecurity Ltd., opens in a new tabUndisclosedSource for Proofpoint buying Hornetsecurity Ltd., opens in a new tab
May 2025Proofpoint acquired NucleiSource for Proofpoint buying Nuclei, opens in a new tabUndisclosedSource for Proofpoint buying Nuclei, opens in a new tab
April 2025Hornetsecurity Ltd. acquired AltospamSource for Hornetsecurity Ltd. buying Altospam, opens in a new tabUndisclosedSource for Hornetsecurity Ltd. buying Altospam, opens in a new tab
October 2024Proofpoint acquired NormalyzeSource for Proofpoint buying Normalyze, opens in a new tabUndisclosedSource for Proofpoint buying Normalyze, opens in a new tab
August 2024Mimecast acquired AwareSource for Mimecast buying Aware, opens in a new tabUndisclosedSource for Mimecast buying Aware, opens in a new tab
July 2024Mimecast acquired Code42Source for Mimecast buying Code42, opens in a new tabUndisclosedSource for Mimecast buying Code42, 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 DMARC and email authentication