Recognized among the world’s top private cloud companies as AI reshapes the enterprise

Abnormal AI, the leader in AI-native human behavior security, today announced it has been named to the Forbes 2025 Cloud 100, the definitive ranking of the top 100 private cloud companies in the world, published by Forbes in partnership with Bessemer Venture Partners. This marks Abnormal’s third consecutive year on the list—and its first time in the top 20—underscoring the company’s continued growth and innovation at the intersection of AI and cybersecurity.

“Being recognized again in Forbes Cloud 100, and breaking into the top 20 this year, reflects our continued focus on solving real problems for customers, and our drive to keep pushing the boundaries of what AI can do to transform cybersecurity,” said Evan Reiser, CEO at Abnormal AI. “As AI accelerates, it’s not just transforming business—it’s transforming attackers, making them faster and more dangerous than ever. Security has to keep up, and our AI-native platform doesn’t just stop these new threats, but does so with greater precision while taking the work off the shoulders of security teams, so that enterprises stay secure without slowing down.”

Inclusion on the Cloud 100 follows a streak of innovation and growth milestones for Abnormal AI. Over the past year, the company launched breakthrough autonomous AI agents, expanded internationally with the launch of its operations in Japan, and achieved FedRAMP Moderate Authorization in just 256 days. Collectively, these accomplishments have helped to cement Abnormal's leadership in the AI-native security market, pushing the company into the top 20 of the Cloud 100 list.

For the tenth consecutive year, the Cloud 100 reviewed submissions from hundreds of cloud startups and private companies worldwide. The evaluation process ranked companies across four factors: market leadership (35%), estimated valuation (30%), operating metrics (20%), and people & culture (15%). For market leadership, the Cloud 100 enlisted a panel of public cloud company CEOs to evaluate and rank their private company peers.

“As we mark the 10th year of the Cloud 100 with our 2025 rankings, we celebrate a highly competitive cohort of companies that, for the first time, collectively exceed $1 trillion in value,” said Elliott Robinson, partner at Bessemer Venture Partners. “The cloud is in a period of rapid, AI-driven transformation, with this year’s cohort demonstrating how AI is fundamentally reshaping how the best cloud companies grow, scale, and compete.”

The recognition builds on continued industry acclaim for Abnormal AI. In 2025, the company was named a Customers’ Choice in the Gartner® Peer Insights™ Voice of the Customer for Email Security Platforms, ranked No. 25 on the CNBC Disruptor 50 list, was named to the InfraRed 100, and received the CRN Tech Innovator Award for Email and Web Security.

About Abnormal AI

Abnormal AI is the leading AI-native human behavior security platform, leveraging machine learning to stop sophisticated inbound attacks and detect compromised accounts across email and connected applications. The anomaly detection engine leverages contextual signals to analyze the risk of every cloud email event—detecting and blocking sophisticated, socially-engineered attacks that target human vulnerability.

Abnormal is designed to be deployed in minutes via an API integration with Microsoft 365 or Google Workspace, unlocking the full value of the platform instantly. Additional protection is available for Slack, Workday, ServiceNow, Zoom, and multiple other cloud applications. Abnormal is currently trusted by more than 3,200 organizations, including 25% of the Fortune 500, as it continues to redefine how cybersecurity works in the age of AI. Learn more at abnormal.ai.

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