Bloom Security
A well-funded, credibly-backed seed-stage entrant addressing a genuinely emerging gap in endpoint security created by AI agents and browser extensions.
Visit Website ↗ + Add to CompareInnovation Matrix Assessment
Launched with a fully built platform addressing AI agents and browser extensions on the endpoint, ahead of most competitors' roadmaps.
Pre-GA scale claims of enterprise deployment are self-reported and not yet independently verified at seed stage.
Raised a large $20M seed round in July 2026 led by Glilot Capital with Ten Eleven Ventures, Okta Ventures, and Runtime Ventures participating.
Targets a genuinely new attack surface -- AI agents and browser extensions running on endpoints -- that legacy EDR wasn't built for.
Too early for independent efficacy data; claims rest entirely on company statements.
AI-agent and browser-extension endpoint risk is a rapidly growing, durable concern for enterprise security teams.
Why CISOs Should Care
Bloom Security gives CISOs visibility and control over the dynamic software, browser extensions, and AI agents now running on employee endpoints -- a blind spot traditional EDR tools were not designed to see.
What Makes It Different
Rather than extending legacy EDR signatures, Bloom builds full-scope endpoint architecture purpose-built for the 'AI-native endpoint,' combining contextual visibility, proactive enforcement, and granular remediation for AI agents and browser-based software.
The Matrix Verdict
52/100 — INCREMENTAL INNOVATOR
A well-funded, credibly-backed seed-stage entrant addressing a genuinely emerging gap in endpoint security created by AI agents and browser extensions.
Editorial Note: Claims vs. Verified Findings
Company states the platform is deployed at 'dozens of large US and European enterprises' pre-launch; this is a self-reported figure not independently verified.
Sources
Alternatives to Bloom Security
Adaptive Security
AI-driven platform that simulates deepfake, voice, and multichannel social-engineering attacks to train and test organizations against next-generation phishing.
Quilr
Early-stage agentic AI security startup building a 'Service-as-Software' platform to guard against human-related breaches and secure AI agent…
Abnormal AI
AI-native behavioral security platform that analyzes sender identity and communication patterns, rather than message content alone, to stop…
Tenzai
An agentic AI penetration testing startup building autonomous 'AI hackers' to find and validate exploitable vulnerabilities at a…
Zenity
Governance and security platform for AI agents and low-code/no-code development, securing agent identity, permissions and behavior across the…
Alice (formerly ActiveFence)
Israeli AI security company (rebranded from ActiveFence in January 2026) offering a lifecycle platform to test, guard, and…