Cloudmark, now part of Proofpoint, is a leader in intelligent threat protection for email and messaging platforms. The company develops software solutions that defend organizations against both known and emerging cyber threats, with a primary focus on large-scale and targeted email attacks. Cloudmark’s technology safeguards approximately 12 percent of global inboxes, providing security for some of the world’s largest messaging environments.
Cloudmark combines global threat intelligence—drawn from a network of over a billion subscribers—with local behavioral analysis to deliver rapid, predictive defense against data breaches, phishing, and other cyber threats. Their solutions help prevent financial losses and protect brand reputation by detecting and stopping email-based attacks before they impact users. With over a decade of experience, Cloudmark has built a reputation for reliability among telecommunications providers and enterprises worldwide.
Who Uses Cloudmark?
Cloudmark’s customers include more than 120 tier-one service providers and tens of thousands of enterprises. Notable clients and sectors served include:
- More than half of the Fortune 100
- Top global banks
- Leading global retailers
- Major pharmaceutical companies
- Top research universities
- Large telecommunications providers such as Verizon, Swisscom, Comcast, Cox, and NTT
This broad customer base highlights Cloudmark’s focus on organizations that require robust, scalable protection for high-volume messaging environments and sensitive data.
How Was Cloudmark Started and Who Leads the Company?
Cloudmark was established in San Francisco, CA, and has grown to employ between 51 and 200 people. The leadership team draws on extensive backgrounds in cybersecurity, enterprise software, and technology innovation. Key executives include:
- Sumit Dhawan (CEO), with experience leading global cybersecurity organizations
- Rémi Thomas (CFO), bringing over 30 years of global finance expertise
- Kim Sullivan (Chief People Officer), focused on human resources leadership
- Mayank Choudhary (EVP & GM, Information Protection & Cloud Security)
- Rohit Dixit (Chief Customer Officer), responsible for customer retention and growth
- Marcel DePaolis (Chief Technical Officer)
- Michael Frendo (CTO, Engineering)
- Jason Hurst (SVP, Corporate Development)
- Ryan Kalember (Chief Strategy & Marketing Officer)
- Linda Lazzareschi (SVP, Customer Success)
- Darren Lee (EVP & GM, Security Products and Services)
- Blake P. Sallé (Chief Revenue Officer)
- Sonia Zuno (Chief of Staff)
Following its acquisition, Cloudmark operates as part of Proofpoint’s suite of security solutions. For current updates, visit Proofpoint’s About page.
What Makes Cloudmark Distinct?
Cloudmark differentiates itself through its scale of threat intelligence and real-time, predictive defense capabilities. By leveraging data from a vast global user base and integrating local context, the company is able to detect and stop both widespread and targeted threats efficiently. This combination allows Cloudmark to provide high accuracy and low false positives, making it a trusted choice for large enterprises and service providers.
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